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Category  : Counters

Mfg. Name Mfg. Part# Product Unit Price Add To Cart
 
Agilent / HP 53131A Agilent/HP 53131A 225 Mhz Universal Frequency Counter Contact Sales
Agilent/HP 53131A Universal Frequency Counter 10 digit
Agilent/HP 53131A Universal Frequency Counter 10 Digit

Rent me for $150 a month

Sales price varies with installed options

   The Agilent/HP 53131A universal counter has the capability to do the job quickly and correctly from fast signal processing to automated limit tests. The Agilent 53131A has frequency resolution of 10 digits per second, 500 ps time interval resolution and a complete set of test and analysis features. The unit comes with two 225 MHz channels, and you can choose an optional third channel that measures up to 3 GHz, 5 GHz, or 12.4 GHz. Standard measurements include frequency, period, ratio, time interval, pulse width, rise/fall time, phase angle, duty cycle, totalize, and peak voltage.

Features
  • Measurements include frequency, frequency ratio, time interval, rise/fall time, phase, duty cycle, positive/negative pulse width, totalize, peak voltage, time interval average and time interval delay
  • Automated limit tests and one-button measurement setups for fast, easy operation
  • Two 225 MHz input channels, plus optional third channel up to 12.4 GHz
  • Built-in statistics feature lets you simultaneously measure average, min/max, and standard deviation
  • 10 digits per second, 500 ps time interval resolution

   The Agilent/HP 53131A/132A/181A counters offer built-in statistics and math functions so you can scale measurements and simultaneously measure and track average, min/max and standard deviation. Automated limit testing lets you set upper and lower limits for any measurement. An analog display mode lets you see at a glance whether a measurement is within pass/fail limits. The counters flag out-of-limit conditions and can generate an output signal to trigger external devices when a limit is exceeded. For quick access to frequently used tests, a single keystroke recalls up to 20 different stored front panel set-ups.

   For computer-controlled systems applications, each 53131A counter includes a standard GPIB interface with full SCPI-compatible programmability and a data transfer rate of up to 200 fully formatted measurements per second. The standard RS-232 talk-only interface provides printer support or data transfer to a computer through a terminal-emulation program.

Other Options
Opt. 001 Medium-stability timebase
Opt. 010 High-stability timebase
Opt. 012 Ultra-High stability timebase (53132A only)
Opt. 015 1.5 GHz RF input Ch 2 for 53181A only
Opt. 030 3 GHz RF input Ch 3 (Ch 2 on 53181A )
Opt. 050 5 GHz RF input with type N connector Ch 3 (Ch 2 on 53181A)
Opt. 124 12.4 GHz RF input with type N connector Ch 3 (Ch 2 on 53181A)
Opt. 060 Rear-panel connectors

 
Agilent / HP 53131A Agilent/HP 53131A 3Ghz Universal Frequency Counter $2,650.00
Agilent/HP 53131A Universal Frequency Counter 10 digit
Agilent/HP 53131A Universal Frequency Counter 10 Digit

Rent me for $150 a month

with 3 Ghz option

Sales price varies with installed options

   The Agilent/HP 53131A universal counter has the capability to do the job quickly and correctly from fast signal processing to automated limit tests. The Agilent 53131A has frequency resolution of 10 digits per second, 500 ps time interval resolution and a complete set of test and analysis features. The unit comes with two 225 MHz channels, and you can choose an optional third channel that measures up to 3 GHz, 5 GHz, or 12.4 GHz. Standard measurements include frequency, period, ratio, time interval, pulse width, rise/fall time, phase angle, duty cycle, totalize, and peak voltage.

Features
  • Measurements include frequency, frequency ratio, time interval, rise/fall time, phase, duty cycle, positive/negative pulse width, totalize, peak voltage, time interval average and time interval delay
  • Automated limit tests and one-button measurement setups for fast, easy operation
  • Two 225 MHz input channels, plus optional third channel up to 12.4 GHz
  • Built-in statistics feature lets you simultaneously measure average, min/max, and standard deviation
  • 10 digits per second, 500 ps time interval resolution

   The Agilent/HP 53131A/132A/181A counters offer built-in statistics and math functions so you can scale measurements and simultaneously measure and track average, min/max and standard deviation. Automated limit testing lets you set upper and lower limits for any measurement. An analog display mode lets you see at a glance whether a measurement is within pass/fail limits. The counters flag out-of-limit conditions and can generate an output signal to trigger external devices when a limit is exceeded. For quick access to frequently used tests, a single keystroke recalls up to 20 different stored front panel set-ups.

   For computer-controlled systems applications, each 53131A counter includes a standard GPIB interface with full SCPI-compatible programmability and a data transfer rate of up to 200 fully formatted measurements per second. The standard RS-232 talk-only interface provides printer support or data transfer to a computer through a terminal-emulation program.

Other Options
Opt. 001 Medium-stability timebase
Opt. 010 High-stability timebase
Opt. 012 Ultra-High stability timebase (53132A only)
Opt. 015 1.5 GHz RF input Ch 2 for 53181A only
Opt. 030 3 GHz RF input Ch 3 (Ch 2 on 53181A )
Opt. 050 5 GHz RF input with type N connector Ch 3 (Ch 2 on 53181A)
Opt. 124 12.4 GHz RF input with type N connector Ch 3 (Ch 2 on 53181A)
Opt. 060 Rear-panel connectors

 
Agilent / HP 53132A Agilent/HP 53132A 12 Digit Universal Frequency Counter Contact Sales
Agilent/HP 53132A 12 Digit Universal Frequency Counter

 

Agilent/HP 53132A 12 Digit Universal Frequency Counter

Rent me for $150 a month

Many options are available for this unit. Price will vary with installed options 

   The Agilent/HP 53132A universal counter has frequency resolution of 12 digits per second, 150 ps time interval resolution and a complete set of test and analysis features. The unit comes with two 225 MHz channels, and you can choose an optional third channel that measures up to 3 GHz, 5 GHz or 12.4 GHz. Need a higher performance universal counter? From fast signal processing to automated limit tests, the Agilent/HP 53132A has the tools to do the job quickly and correctly.

PC Connectivity Software

   IntuiLink, free PC connectivity software allows you to easily transfer measurement data and images into familiar PC applications like Microsoft Office Excel and Word, with little or no programming. Use the following link for additional information and downloading instructions.

Features
  • Measurements include frequency, frequency ratio, time interval, rise/fall time, phase, duty cycle, positive/negative pulse width, totalize, peak voltage, time interval average and time interval delay
  • Automated limit tests and one-button measurement setups for fast, easy operation
  • Two 225 MHz input channels, plus optional third channel up to 12.4 GHz
  • Built-in statistics feature lets you simultaneously measure average, min/max, and standard deviation
  • 12 digits per second, 150 ps time interval resolution
  • GPIB is standard, USB is optional

Basic Options

  • Opt. 001 Medium-stability timebase
  • Opt. 010 High-stability timebase
  • Opt. 012 Ultra-high stability timebase (53132A only)
  • Opt. 015 1.5 GHz RF input Ch 2 for 53181A only
  • Opt. 030 3 GHz RF input Ch 3 (Ch 2 on 53181A )
  • Opt. 050 5 GHz RF input with type N connector Ch 3 (Ch 2 on 53181A)
  • Opt. 124 12.4 GHz RF input with type N connector Ch 3 (Ch 2 on 53181A)
  • Opt. 060 Rear-panel connectors
 
Agilent / HP 5316B Agilent/HP 5316B Dual 100 Mhz Counter $495.00
Agilent/HP 5316B Universal Counter

 

Agilent/HP 5316B Universal Counter

Rent me for $100 a month

   The Agilent/HP 5316B is a low-cost, high-performance universal counter offering frequency, period, time interval, ratio, and totalize measurements. Unique counting circuitry delivers the best of both reciprocal and conventional frequency counting. Programmable functions include all measurement modes, plus trigger level and trigger slope controls.

   The Agilent/HP 5316B is encased in high-quality metal that meets strict standards for electromagnetic compatibility, making it suited to applications such as low-level receiver or high-power transmitter testing. With standard HP-IB interfacing, 5316B is suited for ATE system design or other environments where interference from other equipment is a concern.

   An optional 1-GHz C channel extends the frequency range for navigations and communications applications. A high-stability oven oscillator can also be added for higher accuracy in demanding environments.

Features

  • Exceptional resolution at both low and high frequencies
  • Three time-interval modes solve more problems
  • Flexible signal conditioning optimized for both frequency and time-interval measurements
  • Selectable gate time from 60 ms to 10 s
  • 100 MHz A and B input channels, Optional 1 GHz C channel
  • Full frequency range (to 100 MHz) on both input channels
  • Proven reliability and excellent RFI protection
  • Exceptional Resolution
  • Below 10 MHz, the counter measures the input signal period, then computes and displays the reciprocal frequency with 7 digits of resolution in one second for signals as low as 0.1 Hz. Above 10 MHz, the counter automatically performs as a conventional counter.
  • Three Modes
  • The HP 5316B offers 100 ns single-shot time-interval resolution. Time-interval averaging boosts performance to 10 ps resolution. A time-interval delay ignores spurious signals that would normally cause the counter to trigger.
  • Flexible Conditioning
  • Choose ac or dc coupling, a sensitivity control (variable attenuator), and a switchable low-pass filter. Both channels have trigger level controls with easy setting.
 
Agilent / HP 53181A Agilent/HP 53181A Universal Frequency Counter Contact Sales
Agilent/HP 53181A Universal Frequency Counter 10 digit
Agilent/HP 53181A Universal Frequency Counter 10 Digit

Rent me for $150 a month

Sales price varies with installed options

   The Agilent/HP 53181A RF counter provides fast, precise results with the core measurements needed for RF tests. It provides the same signal processing and test automation features as the Agilent 53131A and Agilent 53132A universal counters, along with 10 digits/second resolution. The Agilent/HP 53181A offers a single 225 MHz channel standard, and you can choose an optional second channel that measures up to 1.5 GHz, 3 GHz, 5 GHz or 12.4 GHz.
   Optimized for RF applications, the single-channel 10 digit/s 53181A measures frequency, period and peak voltage. A digit blanking function lets you easily eliminate unnecessary digits when you want to read measurements quickly. A self-guided shallow menu makes this counter exceptionally user friendly.

Features

  • Measurements include frequency, frequency ratio (with optional channel 2), period and peak voltage
  • Automated limit tests and one-button measurement setups for fast, easy operation
  • 10 digits/second resolution
  • Built-in statistics feature lets you simultaneously measure average, min/max, and standard deviation
  • One 225 MHz input channel, plus optional second channel up to 12.4 GHz

   The Agilent/HP 53181A counters offer built-in statistics and math functions so you can scale measurements and simultaneously measure and track average, min/max and standard deviation. Automated limit testing lets you set upper and lower limits for any measurement. An analog display mode lets you see at a glance whether a measurement is within pass/fail limits. The counters flag out-of-limit conditions and can generate an output signal to trigger external devices when a limit is exceeded. For quick access to frequently used tests, a single keystroke recalls up to 20 different stored front panel set-ups.

   For computer-controlled systems applications, each counter includes a standard GPIB interface with full SCPI-compatible programmability and a data transfer rate of up to 200 fully formatted measurements per second. The standard RS-232 talk-only interface provides printer support or data transfer to a computer through a terminal-emulation program.

Other Options
Opt. 001 Medium-stability timebase
Opt. 010 High-stability timebase
Opt. 012 Ultra-High stability timebase (53132A only)
Opt. 015 1.5 GHz RF input Ch 2 for 53181A only
Opt. 030 3 GHz RF input Ch 3 (Ch 2 on 53181A )
Opt. 050 5 GHz RF input with type N connector Ch 3 (Ch 2 on 53181A)
Opt. 124 12.4 GHz RF input with type N connector Ch 3 (Ch 2 on 53181A)
Opt. 060 Rear-panel connectors

 
Agilent / HP 5328A Agilent/HP 5328A 100 MHz Universal Frequency Counter $499.00
Agilent/HP 5328A Universal Frequency Counter

 

Agilent/HP 5328A Universal Frequency Counter

Rent me for $100 a month

with options

  • 30 500 MHz Channel C
  • 10 High Stability Timebase
  • 11 GPIB
  • 41 Extended Input Module
   The Agilent/HP 5328A, thru the use of technology such as a ROM controlled measurement cycle and a modular design, provides you with excellent universal counter price/performance. Optional modules allow you to tailor the performance of the 5328 A to meet your particular measurement needs. In many instances, however, the standard 5328A offers all the capability you're likely to need.

Burst and CW measurements to 100 MHz: special gating circuits start a measurement only when the input signal is present, allowing burst frequencies to be measured as easily as CW signals. The option  030 C Channel extends this capability to 512 MHz; option 031, to 1300 MHz.

Single shot time interval measurements: the standard universal module's 100 ns single shot resolution meets or exceeds the requirements for a wide range of applications such as mechanical and electromechanical device timing (relays), time of flight measurements (ballistics), sonar ranging, radio ranging and navigation.

Time interval averaging: resolution better than 10 ps (10~n seconds) for repetitive time intervals as short as 100 ps

Display: 9 digit LED display, ninth digit used only with channel C functions (FREQ. C, Ratio C/A, Events C,

A-*B). Blanking: suppresses display of unwanted zeros to left of most significant digit.

Storage: holds reading between samples; can be overridden by rear panel switch.

Sample rate: variable from less than 2 ms between measurements to HOLD which holds display indefinitely.

Gate output: rear panel output, TTL levels; high if gate is open.

Period, period average, ratio, totalize, scale: extra problem solving power for your special requirements.

Armed measurements: versatile arming modes (controlled by a rear panel switch) allow real time control over when a measurement begins. Useful for measurements such as frequency burst profile and frequency sweep linearity.

Trigger lights: trigger light blinks when channel is triggering; light is ON when input is above trigger level; OFF when input is below trigger level. Simplifies trigger level adjustments.

High performance marker outputs: marker outputs (operational to 100 MHz) indicate where channel is triggering in real time for oscilloscope monitoring applications. Provides measurement feedback to  the operator for greatly simplified measurement set-ups. These features and capabilities make the 5328A an excellent choice for general purpose lab use, electronic service, and production test. For more demanding applications, a variety of options offer extended performance at a modest increase in price. 

Operating temperature: 0° to 50° C.

Power requirements: 100/120/220/240 V rms, +5%, -10% (switch selectable), 48-66 Hz; 150 VA max

 
Agilent / HP 5328B Agilent/HP 5328B 100 MHz Frequency Counter Contact Sales
Agilent/HP 5328B 100 MHz Frequency Counter

 

Agilent/HP 5328B 100 MHz Frequency Counter

Rent me for $100 a month

Different options available please call

   The Agilent/HP 5328B Universal Counter provides solid performance for bench or system use. The unit offers sensitivity of 25 mV rms to 40 MHz, 50 mV rms from 49 to 100MHz. 9-digit LED display. Programmable with functions, resolution, sample rate, (maximum or manual control), arming, display modes, measurement modes, output mode, and reset commands. Trigger level, trigger slope, input impedance, coupling, separate/common/check, invert A and B are also programmable. Trigger level is programmable in 10 mV steps in x1; 100 mV in x10

Features

  • Frequency measurements to 100 MHz
  • 10 ns Time Interval resolution, 10 ps with averaging
  • 10 ns Period resolution, 1 fs with averaging
  • HP-IB programming and External Arming Standard
  • The unit offers sensitivity of:
    • 25 mV rms to 40 MHz
    • 50 mV rms from 49 to 100MHz
  • 9-digit LED display
  • Programmable with:
    • Functions
    • Resolution
    • Sample rate
    • Maximum or manual control
    • Arming
    • Display modes
    • Measurement modes
    • Output mode
    • Reset commands
    • Trigger level, trigger slope, input impedance, coupling, separate/common/check, invert A and B are also programmable.
    • Trigger level is programmable in 10 mV steps in x1; 100 mV in x10. 

 

 
 
Agilent / HP 5334B Agilent/HP 5334B 100 Mhz 2 Channel Frequency Counter Contact Sales
Agilent/HP 5334B 100 Mhz 2 Channel Frequency Counter

 

Agilent/HP 5334B 100 Mhz 2 Channel Frequency Counter

Rent me for $100 a month

   The Agilent/HP 5334B counter offers high-resolution measurement power with versatile signal conditioning, triggering, and external arming features to handle a range of demanding measurement applications. Rise and fall time, pulse width, and AC/DC voltage can be measured at the push of a button or with a single HP-IB command. Automatic trigger level and attenuator settings provide adjustment-free measurements that are displayed in units of your choice.

   The Agilent/HP 5334B has been replaced by the Agilent 53131A and 53132A series counters.

Features

  • 200 ps time interval average resolution, 2 ns single-shot resolution
  • Selectable resolution and measurement time
  • Full complement of measurements
  • External arming increases measurement capability
  • Two matched 100 MHz A and B input channels (optional 1.3 GHz C channel)
  • Independent selection of signal conditioning for both A and B channels
  • Proven reliability and excellent RFI protection

 
 
Agilent / HP 5335A Agilent/HP 5335A 200 MHz Dual Channel Counter $695.00
Agilent/HP 5335A 200 MHz Dual Channel Counter

 

Agilent/HP 5335A 200 MHz Dual Channel Counter

Rent me for $150 a month

   The Agilent/HP 5335A counter offers high-resolution measurement power, standard GPIB interfacing, and many features for user convenience. Manual or automatic triggering allows you to set triggers, or have the 5335A set them for you. With the press of a button, perform a variety of measurements and display A and B channel trigger levels and gate time. Built-in statistical characterization and mathematical functions offer better understanding of measured parameters.

   A variety of options increase the performance and functionality of the 5335A. A 1.3 GHz C channel extends the frequency range for navigations and communications applications. A high-stability oven oscillator can be added for higher accuracy in demanding environments, and an add-on DC digital voltmeter lets you perform DC voltage measurements. 

Agilent/HP 5335A Counter Specifications

  • Selectable resolution and measurement time
  • Full complement of measurements, math and statistics functions
  • External arming increases measurement capability
  • Full function ratio measurements
  • 100 ps time interval average resolution, 2 ns single-shot resolution
  • 200 MHz (Channel A) and 100 MHz (Channel B) input channels
  • Proven reliability and excellent RFI protection

Function Memory: Front panel settings for Math, Statistics, Range Hold, Ext. Arm Enable, Gate, and Cycle stored for current function and immediately preceding function. GATE TIME and TRIG LVL do not affect memory.

  • Cycle: Determines delay between measurements.
  • NORM: No more than 4 readings per second NOMINAL.
  • MIN: Minimum gate time. Actual time depends on function. For FREQ A, (FREQ B), FREQ C, and PER A, minimum gate time = (one period of input) × (prescale factor).
  • SINGLE: One measurement taken with each press of button.Display: 12 digit LED display in engineering format; exponent range of +18 to -18.
  • Overflow: All measurements which would theoretically cause a display of more than 12 digits will display 12 most significant digits.
  • Operating Temperature: 0 to 50 degrees C.
  • Power Requirements: 100, 120, 220, 240 VAC (+5%, -10%), 48-66 Hz; 130 VA max.
  • Dimensions: 425.5 mmW × 132.6 mm H × 345.4 mm D (16¾" × 5¼" × 13½"), not including removable handles.

Selectable Resolution

Digital gate time selection makes it easy to trade off resolution and measurement time. Resolution is 9 digits per second of gate time to 100 MHz for period and 200 MHz for frequency.

 
 
Agilent / HP 5347A Agilent/HP 5347A 20 Ghz Counter/Power Meter Contact Sales
Agilent/HP 5347A 20 Ghz Counter/Power Meter

 

Agilent/HP 5347A 20 Ghz Counter/Power Meter

Rent me for $300 a month

   The Agilent/HP 5347A 20 GHz Microwave Counter/Power Meter offers the convenience of a single instrument that makes frequency and power measurements with accuracy and resolution comparable to stand-alone instruments. As a true power meter, the Agilent/HP 5347A offers excellent dynamic range, linearity, and accuracy. It uses the same proven power sensors as Agilent/HP's standalone power meters. The high-performance frequency counter measures frequency from 10 Hz to 20 GHz.

   With only five function keys, the Agilent 5347A is especially easy to use. Its rugged, lightweight package, along with an optional internal battery that provides up to two hours of cordless measurements, makes the Agilent 5347A ideal for taking portable measurements.

Features

  • True power meter performance
  • Negligible power meter error
  • Outstanding frequency measurements
  • Built-in sensor calibration tables save time
  • External DC operation for greater measurement flexibility
  • Supports three HP power sensors

Specifications for Input 1

  • Frequency Range: 500 MHz to 20 GHz 

  • Sensitivity 500 MHz - 12.4 GHz: -32 dBm, 12.4 GHz - 20.0 GHz: -27 dBm

  • Resolution: 1 Hz or 10 kHz, selectable

Specifications for Input 2

  • Frequency Range: 10 Hz - 525 MHz

  • Sensitivity: 25 mV rms 

  • Impedance: 1 Mohm nominal or 50 ohm nominal

  • Accuracy: ±1 LSD ±[(1.4 x Trigger Error/Gate Time)±Time Base Error] x frequency

  • Resolution: 1 Hz or 10 kHz, selectable

  • AM Tolerance: Any modulation index provided the minimum signal level is not less than the sensitivity specification.

Power Meter

  • Frequency Range: 0 MHz to 20 GHz, sensor dependent Power Range: -70 dBm to +20 dBm (100 pW to 100 mW) sensor dependent

  • Dynamic Range: 50 dB in 10 dB steps Resolution: 0.01 dB in logarithmic mode, 0.1% of full scale in linear mode.

  • Auto Filter: The meter automatically selects the required number of averages for the selected range.

  • Accuracy Instrumentation: ±0.02 dB or ±5%

  • Zero Set (digital settability of zero): ±5% of full scale on most sensitive range. Decrease percentage by a factor of 10 for each higher range, ±1 display count.
 
Agilent / HP 5350B Agilent/HP 5350B 20 Ghz Frequency Counter $1,995.00
Agilent/HP 5350B 20 GHz CW Microwave Frequency Counter
Agilent/HP 5350B 20 GHz CW Microwave Frequency Counter

Rent me for $400 a month

 The Agilent/HP 5350B provides fast and precise measurements from 10 Hz to 20 GHz and features microwave components that are integrated on a single hybrid gallium arsenide (GaAs) circuit for added speed and reliability. The 5350B distinguished by wide frequency coverage, exceptional sensitivity, fast tracking, high measurement throughput, and wide FM tolerance. Built-in microprocessors provide math functions, including measurement scaling and offset. Automatic amplitude discrimination measures the frequency of the highest-amplitude signal in a multi-signal environment. A full set of diagnostic routines provides general information and troubleshooting. The 5350B integrates easily into test systems. English-like commands simplify integration with other components, and the easy-to-read liquid crystal displays can serve as message centers for the system.

Features

  • Frequency range from 10 Hz to 20 GHz; directly measures without expensive mixers.
  • Sensitivity to -40 dBm ensures accurate measurement of low-energy signals.
  • Low kickback noise for sensitive environments; sleep mode reduces noise to -70 dBm.
  • Fast acquisition time (60 ms in automatic, fast acquisition tracking mode; 20 ms in manual mode) for improved throughput.
  • Up to 120 measurements per second (100 in automatic mode) over HP-IB (fully programmable).
  • Fast tracking speed allows effortless tracking of source drift to 1 GHz per second; ideal for measuring the response of voltage-controlled oscillator to voltage-source tuning.
 
Agilent / HP 5382A Agilent/HP 5382A 225 MHz Single Channel Frequency Counter Contact Sales
Agilent/HP 5382A 225 MHz Single Channel Frequency Counter

 

Agilent/HP 5382A 225 MHz Single Channel Frequency Counter

Rent me for $100 a month

   The Agilent/HP 5382A Electronic Counter covers the wide frequency range of 10Hz to 225MHz and offer sensitivity of 25 mV rms (30Hz to 10MHz) and 50 mV rms (10Hz to 225MHz). The input impedance is 1 Mohm, <40 pF and input attenuation is selectable between x1, x10, and x100. Resolution is direct count: 1Hz in 1 sec and gate time is 0.1 sec, 1 sec and 10 sec. 8-digit LED display has good resolution and non significant zero blanking. Rear panel input sensitivity of 250 mV rms. Timebase frequency is 10MHz.

Features

  • Eight Digit 225MHz high performance counter.
  • 10s timebase for high resolution measurements.
  • Three step selectable timing resolution.
  • Three step attenuator.
  • Accepts external reference.
 
Agilent / HP 5385A Agilent/HP 5385A 1 Ghz Frequency Counter $595.00
Agilent/HP 5385A Frequency Counter

 

Agilent/HP 5385A Frequency Counter

Rent me for $100 a month

   The Agilent/HP 5385A Frequency Counter utilizes interpolar-enhanced reciprocal counting to provide outstanding performance at a low cost. Frequency coverage allows measurements from 10 Hz to 1 GHz, with resolution of 9 digits per second. The 5385A incorporates a programmable alphanumeric display, accessible remotely via either HP-IB (standard) or HP-IL (optional). The liquid crystal display (LCD) reduces component count, is easy to read (indoors or out), and improves counter reliability and serviceability.
The half-rack width 5385A instrument is portable, rackable, and stackable for use in the field, at a workbench, or as part of an ATE system. Options include a four-hour-capacity battery pack, and a high-stability ovenized oscillator for higher accuracy.

Features

  • High input sensitivity extends applications
  • Extensive input conditioning improves accuracy
  • Variable display digits improve readability
  • External DC operation extends portability
  • Standard TCXO timebase
  • Proven reliability
  • High Input Sensitivity
  • Sensitivity of at least 15 mV rms reduces the need for preamps, and improves low level signal measurement accuracy.
  • Extensive Input Conditioning
  • A low pass filter, automatic or manual attenuator and trigger level control features provide versatile signal-to-noise conditioning for optimum accuracy.
  • Variable Display Digits
  • View only readable digits from stable signals by controlling the number of display digits. Use as few as 3 or as many as 11 digits.
  • External DC Operation Wide range (9-15V) external DC input power allows use of sources such as 12V automobile power to keep the timebase warm, or charge the battery option while in transit to remote sites.
     
 
Agilent / HP 5386A Agilent/HP 5386A 3 GHz Frequency Counter Contact Sales
Agilent/HP 5386A 3 GHz Frequency Counter

 

Agilent/HP 5386A 3 GHz Frequency Counter

Rent me for $125 a month

   The Agilent/HP 5386A Frequency Counter offers prescaled measurements to 3 GHz based on gallium arsenide (GaAs) technology. The GaAs prescaler and attenuator circuitry are integrated on a hybrid substrate. Bipolar technology permits the integration of reciprocal counting and interpolation techniques on a single integrated circuit. The tightly-integrated design achieves overall high performance, excellent reliability, and low cost of ownership. The 5386A incorporates a 12-character display, accessible remotely via HP-IB. The liquid crystal display (LCD) can be read in direct sunlight, and has large characters that can be seen from the end of a bench or mounted high in a test rack. The 5386A can be easily carried to remote locations for service and calibration applications.

Features

  • Measurements displayed in meaningful units
  • Reduced switching requirements
  • Measurements to 3 GHz with -23.5 dBm sensitivity, a 30.5 dB dynamic range, and a damage level of +25 dBm
  • Half-rack width saves rack space
  • Optional high-stability ovenized oscillator offers greater accuracy
  • Measurements Displayed
  • Controlled via HP-IB, the display can be used for messages and operator prompts, or even blanked for security. Measurements are displayed in your choice of units. The number of digits displayed can be varied from the front panel or HP-IB.
  • Reduced Switching
  • Frequency measurements from 10 Hz to 3 GHz are made with two input ports, instead of three, for reduced switching.
 
Agilent / HP 58503A Agilent/HP 58503A GPS Time and Frequency Reference Receiver Contact Sales
Agilent/HP 58503A GPS Time and Frequency Reference Receiver

 

Agilent/HP 58503A GPS Time and Frequency Reference Receiver

Rent me for $150 a month

   Through a unique combination of technology, the Agilent/HP 58503A GPS time and frequency reference receiver provides a highly reliable source of precision time and frequency. The 58503A is based on Agilent's quartz technology. This provides unsurpassed reliability and confidence, as well as excellent short term stability. The core of the design is an oscillator with >500,000 hours of field proven mean time between failures. This delivers superior performance and reliability while eliminating the need for periodic oscillator replacement as required in GPS rubidium sources.

Features

  • 6-channel, Parallel tracking
  • C/A code, L1 carrier
  • HP smart clock / HP enhanced GPS
  • DC power options available
  • 10 MHz and 1 pps outputs
  • By locking the oscillator to GPS signal provides frequency accuracy of better than 1 X 10-12
     
 
Eagle Signal Flexopulse Eagle Signal Flexopulse Analog Dial Timer Contact Sales
Eagle Signal Flexopulse Analog Dial Timer

 

Eagle Signal Flexopulse Analog Dial Timer

Rent me for $100 a month

   The Eagle Signal Flexopulse is an analog timer with a range of 20 minutes. Setting is through analog arms and the supply voltage is 120 volt 60 hertz. Easy to operate and get results fast.

   A cycle progress pointer oscillates between the ON and OFF time setpoints. As this pointer crosses the zero point on the dial, two internal 10 amp SPDT output switches transfer. The transfer point of the output switches is adjustable to allow a make before break (overlap) or a break before make (dwell) switch action. The overlap or dwell time interval is limited to 1.5% of the total (ON plus OFF) time cycle.

   A synchronous unidirectional motor drives the unit through precision gearing. Instant reversing of the progress pointer is accomplished by positive mechanical action.

Features

  • Repeat cycle, two circuit timer housed in plug-in case
  • Separate dial scale for ON time and OFF time
  • Individually adjustable ON and OFF time intervals via concentric knobs on front of unit
  • Combination of ON and OFF time equals total time cycle of unit
 
Leader LF826 Leader LF826 550 MHz Frequency Counter Contact Sales
Leader LF826 550 MHz Frequency Counter

 

Leader LF826 550 MHz Frequency Counter

Rent me for $100 a month

  Incorporating the latest developments in counter technology the Leader LF826 extend high resolution readings over very wide frequency ranges and make use of calculator modes to meet the needs of assembly line and quality control applications. A technique of high speed reciprocal counting is applied to input A signals to produce high resolution at low frequencies. (Older counters required period readings with calculated reciprocals to obtain similar resolution). Direct counting is applied above 10 MHz and a prescaler technique is applied to B input signals above 80 MHz. The result is accurate, high-resolution reading across the entire frequency range.

   Measuring modes include frequency, period, relative, totalizer and RPM for input A signals. Automatic and manual trigger levels are also applied to input A signals to suit trigger conditions to signal characteristics and to achieve stable readings in the presence of noise. A switchable low pass filter, cutoff below 100 kHz, allows accurate low frequency readings in the presence of RF interference. Sensitivity is excellent: 15 mV rms for input A and 10 mV rms for the B (prescaler) input. Built-in calculation capabilities include relative and a LO-GO-HI comparator judgment modes. The relative mode works from an operator-preset parameter and reads out the deviation from that preset value with 7-digit resolution. The comparator function works with a pair of preset parameters and indicates low, within limits, or high readings by means of front panel LO, GO or HI LED's. Timebase accuracy is ± 3 ppm.

Features

  • Extended Low Frequency Range to 0.1 Hz
  • High Speed Reciprocal Counting at Low Frequencies
  • Frequency Period, Totalize, Relative and RPM
  • 3ppm Time Base Accuracy Standard
  • Relative Mode From a Preset Reference
  • LO-GO-HI Judgement with Preset Limits
  • High Sensitivity
  • Auto-Triggering Minimizes Errors on Noisy Signals
  • EMI Protection
 
Array U6200 New Array U6200A 6 GHz Frequency Counter $1,695.00
New Array U6200A 6 GHz Frequency Counter

 

New Array U6200A 6 GHz Frequency Counter

12 Digits of resolution and a frequency range of 6GHz and USB built in

Compare me to the Agilent//HP 53132A

   The New Array U6200A universal counter, whose production procedures conform to ISO 9001, has frequency resolution of 12 digits per second,  40 ps time interval resolution and a complete set of test and analysis features.  The standard U6200A's CH3 comes with the range from 375 MHz to 6GHz and the standard CH1 & 2 from 1 mHz to 400 MHz.

Features

  • Channel 3 provides 375MHz~6GHz Frequency range
  • Channel 1 & 2 provides a 1 mHz~400MHz Frequency range
  • 12 Digits resolution with 1S gate time
  • 40 PS time domain function resolution
  • Time domain function (Rise/Fall Time, Pulse Width, Time interval), Peak voltage, phase.
  • Timebase reference temperature stability<1PPM.
  • Multi-parameter display of results.
  • Easy-to-use keys with light
  • Operation instructions on buttons.
  • Connection via USB, Ethernet 10M/100M & GPIB (Optional)
  • Supports IEEE488.2/USB TMC
  • Supports Webserver
  • Support a high stability oven (Optional)
  • Free PC software

Great Features for Universal Application

   The Array U6200A also provides great features including Frequency & Ratio (11 Digits/Sec.), Time interval, Period (2.5 ns to 1000s), Duty Cycle, Pulse Width, Rise/Fall Time, Peak Voltage (100 Hz~300MHz), Phase, Totalize, Temperature Stability (<1 PPM), Aging Rate (<2 PPM per year), timebase reference channel (Figure-2) and complete Front-End Isolation.  Moreover, it offers 20 memories  for storing frequently-used operations.

Full Math Function & Easy Operation Panel

   The Array U6200A offers built-in statistics and math functions.  Users can do general, simultaneous measurements, count in mean, min/max, delta and standard deviation.  On the other hands, the scale & offset button can be easily used for compensation purpose according to users¿ applications.  In addition, to reach these measurements, user can easily use the numeric buttons to define settings.  Moreover, the U6200 also provides users the visible light buttons as functions are actuated.  

Free Software & Familiar SCPI Commands

   Via a USB or an optional GPIB interface, users can get data logs by Microsoft Excel.  Furthermore, U6200A supports a webserver function, so users can easily control it via a LAN interface by imputing an Ethernet address (Default: 192.168.0.247) on web browsers.  In addition, by the SCPI commands compatible to Agilent/HP 53132A, the ARRAY U6200A can provide familiar syntax string for users¿ applications. 

Available options

  • U6200-opt01: High Stability Oven
  • U6200-opt02: 250 MHz~20 GHz Input Channel 3.
  • U6200-opt04: Rear panel input module (CH1/CH2)
  • U6200-opt05: Rear panel input module (CH1/CH2/CH3)
  • M3500-opt04: GPIB Card

 
 
Instek GFC-8010H New Instek GFC-8010H 120MHz Frequency Counter $180.00
New Instek GFC-8010H 120 Mhz Frequency Counter with 2 year warranty

 

New Instek GFC-8010H 120 MHz Frequency Counter with 2 year warranty

   The Instek GFC-8010H performs virtually most of the counting measurements required in laboratories, in terms of both period and frequency. 8 digits LED display with distinctive red color and overflow indicator provides fast and clear view. With easy operation of all functions neatly organized on the front panel, compact size suitable for both portable and bench-top usage, the GFC-8010H serves users as a handy reference.

Display Resolution

  • Display 8 digits with Hz, kHz, MHz, GHz, S, mS, µS, nS and overflow 
  • Gate Time 0.1S, 1S, 10S switch selectable 
  • Accuracy +(1 digit + Timebase accuracy) 

Input Specifications

  • Sensitivity 10Hz ~ 60MHz < 20mVrms
  • 60MHz ~ 100MHz < 30mVrms
  • 100MHz ~ 120MHz < 40mVrms 
  • Impedance 1Mohm 35pF 
  • Coupling System AC Coupling 
  • Max Input Voltage 150Vrms 

Time Base Specifications

  • Oscillation Frequency 10MHz 
  • Aging Rate +1 ppm per month 
  • Temp. Stability 25°C + 5°C
  • Resolution The maximum resolution for frequency measurement is 100nHz for 1Hz and 0.1Hz for 100MHz input respectively, and for period measurement is 10nS for 1Hz and 0.1fS (f=10-15) for 100MHz input respectively. 
  • Power Source AC 100V/120V/220V/230V ±10%, 50/60Hz 

Supplied Accesories

  • Instruction manual
  • Power cord 
  • Test Lead GTL-101
  • Dimensions & Weight 230(W) × 95(H) × 280(D) mm, Approx. 1.7kg
 
Instek GFC-8131H New Instek GFC-8131H 1.3 GHz Frequency Counter $275.00
New Instek GFC-8131H 1.3 Ghz Frequency Counter with 2 year warranty

 

New Instek GFC-8131H 1.3 GHz Frequency Counter with 2 year warranty

   The Instek GFC-8131H Series performs virtually all of the counting measurements required in laboratories, in terms of both period and frequency. A bright red 8 digit LED display with an included overflow indicator provides a clear view. Both models feature a stable time base with a maximum resolution of 100nHz and 10nS at 1Hz for frequency and period measurement, respectively. Gate time can be configured for fast response (5 digits/10ms) or accuracy (7 digits/s) for more control. For high frequency needs, the GFC-8270H can operate at up to 2.7GHz. The GFC-8000 Series features easy operation with a simple front panel interface, suitable for both portable and bench-top use.

Display Resolution

  • Display 8 digits with Hz, kHz, MHz, GHz, S, mS, µS, nS and overflow 
  • Gate Time 0.1S, 1S, 10S switch selectable 
  • Accuracy +(1 digit + Timebase accuracy) 

Input Specifications Channel A

  • Range DC coupled 0.01Hz ~ 120MHz, AC coupled 30Hz ~ 120MHz 
  • Sensitivity 10mVrms typical, 50mVrms max 
  • Coupling AC or DC switchable 
  • Filter Low pass, switchable in or out for channel A.-3dB point of nominally 100kHz 
  • Impedance 1Mohm 40pF 
  • Attenuator x 20dB 
  • Trigger Level Adjustment -2.5 VDC to +2.5 VDC 
  • Resolution The maximum resolution for frequency measurement is 100nHz for 1Hz and 0.1Hz for 100MHz input respectively, and for period measurement is 10nS for 1Hz and 0.1fS (f=10-15) for 100MHz input respectively.
  • At least 7,6,5 digits are display for 1S, 100mS, 10mS gate time respectively 
  • Period Range 8nS to 100S at least 7 digits displayed for per second of gate time 

Input Specifications Channel B

  • Range 50MHz to 1.3GHz 
  • Sensitivity <40mVrms (10mVrms typical) 
  • Coupling AC only 

Time Base Specifications

  • Oscillation Frequency 10MHz 
  • Aging Rate +1 ppm per month 
  • Temp. Stability 25°C + 5°C
  • Resolution The maximum resolution for frequency measurement is 100nHz for 1Hz and 0.1Hz for 100MHz input respectively, and for period measurement is 10nS for 1Hz and 0.1fS (f=10-15) for 100MHz input respectively. 
  • Power Source AC 100V/120V/220V/230V ±10%, 50/60Hz 

Supplied Accessories

  • Instruction manual
  • Power cord 
  • Test Lead GTL-101
  • Dimensions & Weight 230(W) × 95(H) × 280(D) mm, Approx. 1.7kg



 
Instek GFC-8270H New Instek GFC-8270H 2.7 GHz Frequency Counter $375.00
New Instek 2.7 Ghz counter with 2 year warranty
New Instek GFC-8270H 2.7 GHz Frequency Counter with 2 year warranty

   The Instek GFC-8270H 2.7 GHz Frequency Counter offers real value for the money. Perfect for large volume users such as educational, manufacturing field service.

   The Instek GFC-8000 Series performs virtually all of the counting measurements required in laboratories, in terms of both period and frequency. A bright red 8 digit LED display with an included overflow indicator provides a clear view. Both models feature a stable time base with a maximum resolution of 100nHz and 10nS at 1Hz for frequency and period measurement, respectively. Gate time can be configured for fast response (5 digits/10ms) or accuracy (7 digits/s) for more control. For high frequency needs, the GFC-8270H can operate at up to 2.7GHz. The GFC-8000 Series features easy operation with a simple front panel interface, suitable for both portable and bench-top use.

Features

  •  Frequency and Period measurement
  • Microprocessor controlled intelligent counter
  • High resolution at both high and low frequency
  • 0.01Hz ~ 2.7GHz frequency range
  • 10mVrms High sensitivity
  • 100nHz resolution for 1Hz
  • Self diagnosis routine
  • Variable Trigger Level control
  • Display hold function
Specifications

Display 8 digits with Hz, kHz, MHz, GHz, S, mS, µS, nS and overflow
Gate Time Continuously vary from 10mS to 10S, or 1 period of input depending on whichever is greater
Accuracy +(Resolution +Timebase error)

Channel A  Range DC coupled 0.01Hz ~ 120MHz?GAC coupled 30Hz ~ 120MHz 
Sensitivity 10mVrms typical?G 50mVrms max 
Coupling AC or DC switchable 
Filter Low pass, switchable in or out for channel A.-3dB point of nominally 100kHz 
Impedance 1M¿¶//40pF 
Attenuator x 20dB 
Trigger Level Adjustment -2.5 VDC to +2.5 VDC 
Resolution The maximum resolution for frequency measurement is 100nHz for 1Hz and 0.1Hz for 100MHz input respectively, and for period measurement is 10nS for 1Hz and 0.1fS (f=10-15) for 100MHz input respectively. At least 7,6,5 digits are display for 1S, 100mS, 10mS gate time respectively 
Period Range 8nS to 100S at least 7 digits displayed for per second of gate time

Channel B  Range 50MHz to 2.7GHz 
Sensitivity <50mVrms (10mVrms typical) 
Coupling AC only

Time Base 
Aging Rate 1 ppm, per Month 
Temperature 5 ppm 23°C + 5°C 
Line Variation +0.005 ppm for +10% variation

Power Source AC 100V/120V/220V/240V ±10%, 50/60Hz

 
Madell FC-2700 New Madell FC-2700 2.7 Ghz Frequency Counter $180.00
New Madell FC-2700 2.7 Ghz Frequency Counter

 

New Madell FC-2700 2.7 Ghz Frequency Counter

Specifications for Madell Model FC-2700

  • Model FC-2700  
  • Frequency range 1~2700MHz  
  • Display 8 digits LED
  • Gate 0.01S,0.1S,1S,10S
  • Precision 1Hz Sensitivity 0-10MHz, 1-mV, 10Hz-100MHz, 25mV 100MHz-2700MHz, 25mV  
  • Input Impedance 1MΩ channel A,B, 50Ω channel C
  • Max input voltage 150V rms channel A,B, 5V rms channel C
  • Max aging rate 5ppm/year
  • Dimensions 210x230x76mm

 

  Reed FC-2500 New Reed FC-2500 2.5 GHz Frequency Counter $374.00 New Reed FC-2500 2.5 GHz Frequency Counter

 

New Reed FC-2500 2.5 GHz Frequency Counter

Microprocessor frequency counter measures to 2.5 GHz. Why pay more?

Features

  • High sensitivity in low/high ranges
  • Max, Min & Average readings
  • Relative frequency measurements
  • Large 0.5 8-digit LCD display
  • Period display values from 10Hz to 10MHz
  • Data Hold; Auto power off; Overload indication
  • Gate time selector (Fast/Slow sampling time)

Specifications

  • Range (Frequency): Channel A: 50 MHz to 2500MHz, Channel B: 10 MHz to 500 MHz, Channel C: 10 Hz to 10MHz, Period: 10 Hz to 10 MHz
  • Maximum Resolution: 0.1 Hz
  • Sensitivity: Channel A, B, C: < 50 mV rms
  • Input Impedance: Channel A & B: 50Ω typical, Channel C: 1MΩ/30pF typical, AC coupled
  • Max. O/L Protection: 5V peak to peak, Channel C: 250V peak to peak
  • Time Base Circuit: 4.194 MHz quartz crystal
  • Connector: BNC
   Philips PM6685 Phillips PM6685 300 MHz Frequency Counter Contact Sales Phillips PM6685 300 MHz Frequency Counter

 

Phillips PM6685 300 MHz Frequency Counter

Rent me for $100 a month


   The Philips PM6665 / Fluke 441 Timer Counter 120 MHz. The Philips PM6665 2 channel unit offers many functions as standard: Frequency, Period, Freq Ratio, Totalize Pulses, Time Interval, and PM. It is highly integrated ensuring reliable, low power operation. Stability is exceptional via the temperature compensated crystal oscillator and the all metal cabinet gives excellent shielding and stability. Frequency measurements have continuously variable sensitivity and noise immunity and time measurements can be triggered within a wide +5V/+50V range.

  The Fluke PM 6685 Frequency Counter brings calibration lab accuracy to field measurements. The PM 6685 is easy to use, compact, and most important of all, it has today's smartest input triggering for frequency measurements. With 10 digits per second, plus overflow (displays 11th and 12th digits), it delivers high-accuracy measurements instantly. The PM 6685 is easy to use, compact and - most important of all - it has today's smartest input triggering for frequency measurements.

Cal lab performance in the field

With 10 digits per second resolution, plus overflow (11th and 12th digits), it delivers high accuracy measurements instantly. The standard timebase offers a stability of better than 5E-7 per month.

Built in capabilities simplify tricky measurements

The PM 6685's built-in intelligence eliminates a lot of button pushing. Just plug it in, and it automatically selects optimum trigger level and input sensitivity for excellent noise immunity.

Analog bar graph

The analog bar graph displays signal strength and input sensitivity to assist instrument setup and RF tuning applications.

Measurement functions

Frequency, Burst Frequency, Period A, Ratio A/E C/A, Pulse Width A, Duty Factor, Totalize A.

Auxiliary functions

External Arming, External Gate, Nulling/Frequency Offset.

  Philips PM6666 Phillps/Fluke PM6666 1.3 GHz Frequency Counter Contact Sales Phillps/Fluke PM6666 1.3 GHz Frequency Counter

 

Phillps/Fluke PM6666 1.3 GHz Frequency Counter

Rent me for $200 a month

   The Phillips/Fluke PM6666 are economical, easy-to-use counters that meet the demands for high-precision measurements, reliability and durability. The units use reciprocal frequency counting, which yields high resolution measuring results under all conditions, even on low frequency measurements. The high performance counter front ends, providing variable sensitivity and noise immunity increase measuring accuracy.  The counters have high input protection, allowing it to withstand inputs of 12V rms on the optional 50 ohm RF input and 350V (dc+ac peak) on the 1 Mohm LF input.

Features
  • Unrivaled price/performance
  • 160 MHz / 1.3 GHz option
  • Reciprocal counting, 7 digits per second
  • High stability MTCXO: 2x10-7 over 0°C to 50°C with push-button calibration
  • Error-free triggering-, high noise immunity input circuitry
  • PM 6666: Full GPIB/IEEE 488 programmability, Auto trigger, Voltage measurements
  • PM 6669 Ease of operation, auto triggering, auto range and auto display
  • Rugged, no compromise quality, MTBF 50.000h & 70.000h
  • Excellent suppression of RF interference through all-metal cabinet

   The PM 6666 is a low cost timer/counter with high accuracy frequency, time and voltage measurements that also offers 100% programmability including trigger level and sensitivity settings. A bus learn mode is provided to speed and simplify programming. The PM 6666 is also a bench-top use; with 9 front panel selectable measuring functions including voltage max /min. measurements.

Error-Free Triggering

   Triggering is error-free on the PM 6666 for all waveforms. Trigger level setting can be automatic on all input signals over 100 Hz. Resolution is 20/200 mV, over a very wide range (-50V to +50V) that allows measurements to be accurate even on high voltage events. The trigger level can be displayed immediately with one keystroke; and inputs can be instantly checked for triggering with the Tri-state LED trigger indicators. To give the various noise immunity settings, input sensitivity has six steps, from 20 mV to 1V rms. V pp measurements up to 50 MHz. The PM 6666 has Volt peak measurements up to 50 MHz. When displaying Vmax. / min. measurements, positive and negative signal peaks of the input signal are shown simultaneously with a resolution of 20 or 200 mV.

High Resolution

   The PM 6666 can measure low frequency signals to high resolution with synchronized multiple period measurements and computing the reciprocal values. Resolution is at least 7 digits on a 1s measuring time, because the traditional ± 1 input cycle error is eliminated. Time interval measurements are high resolution

   Sencore FC71 Sencore FC71 1 GHz Frequency Counter Contact Sales Sencore FC71 1 GHz Frequency Counter

 

Sencore FC71 1 GHz Frequency Counter

Rent me for $100 a month

   The Sencore FC71 is a portable, digital frequency counter which directly measures any frequency from 10Hz to 1GHz with accuracy that exceeds FCC requirements. The FC71 maintains useable accuracy over a wide temperature range and does not require a warm up time. It uses a microprocessor-compensated timebase that eliminates the need for an oven. This means the FC71 runs a full day on a single battery charge. A supplied AC adapter/recharger allows bench operation, while a supplied cable allows the FC71 to be powered from an outside source of 12VDC. Special shielding, along with a metal RF resistant case, provides interference-free operation even near the most powerful transmitters. The 8V2 digit display is readable under almost any lighting condition. Annunciators for "Hz", and "MHz", combined with automatic leading zero suppression, allow quick, interpretation-free readings.

   In addition, two annunciators monitor the condition of the battery while another warns you if the 50 ohm input fuse has been damaged by an overload. One function switch selects the counter function, the frequency range and which input is used. The FC71 has three inputs. The first is a high impedance, 1 megohm input which minimizes circuit loading. This input has very good sensitivity. A sensitivity control reduces sensitivity on noisy signals to provide a stable reading. Diodes protect this input from overload. The second input to the FC71 is terminated in 50 ohms to reduce cable ringing and other effects of mismatch on high frequency signals.

   Like the 1 megohm input, the 50 ohm input has very good sensitivity which is also adjustable for obtaining stable readings on noisy signals. A fuse protects the 50 ohm input against overload. The third FC71 input is Sencore's exclusive Crystal Check. Any crystal can be checked for activity by simply inserting it into the front panel test socket and reading its approximate fundamental frequency.

   A choice of two gate times allows either fast update for troubleshooting or a slower update and extra resolution when you need readings with extra accuracy. The FC71 provides resolution down to ,01Hz without an external prescaler or gate times over 1 second. The FC71's ratio test automatically calculates the ratio of two frequencies which are applied to it. The frequencies can be applied to either input, and can range from 10Hz to 1GHz. The ratio test greatly simplifies troubleshooting digital programmable dividers and testing the frequency multiplier stages in high frequency communications transceivers

  Stanford Research Systems Sr620 Stanford Research Systems SR620 Universal Time Interval Counter Contact Sales Stanford Research Systems SR620 Universal Time Interval Counter

 

Stanford Research Systems SR620 Universal Time Interval Counter

Rent me for $150 a month

   The Stanford Research Systems SR620 Time Interval Counter performs virtually all of the time and frequency measurements required in a laboratory or ATE environment. The instrument's single-shot timing resolution and low jitter make it the counter of choice for almost any application.

SR620 Measurements

   The SR620 measures time interval, frequency, pulse-width, rise and fall time, period, phase and events. Time intervals are measured with 25 ps rms resolution, making the SR620 one of the highest resolution counters available. Frequency is measured from 0.001 Hz to 1.3 GHz, and a choice of gates ranging from 1 period to 500 seconds are provided. The SR620 delivers up to 11 digits of frequency resolution in a 1 second measurement. It's suitable for measurement applications ranging from short-term phase locked loop jitter, to long-term drift of atomic clocks. All measurement modes are supported by a wide variety of flexible arming and triggering options.

Features

Histograms and Strip Charts

   Unlike conventional counters that only have numeric displays, the SR620 Frequency Counter provides live, graphical displays of measurement results. Graphical data is available in three formats: a histogram showing the distribution of values within a set of measurements, a strip chart of mean values from successive measurements, or a strip-chart of jitter (standard deviation or Allan variance) values from successive measurements. Up to 250 strip chart points, or histogram bins, can be displayed.

   Both histograms and strip charts can be displayed on any oscilloscope with an X-axis input (see the pictures above), or can be plotted on an HP-GL compatible plotter or dot-matrix printer. Convenient cursors allow you to read the value of any data point in the histogram or strip chart. Autoscale and zoom features make it simple to display all, or any portion, of the graphs.

Complete Statistical Calculations

   The SR620 Time Interval / Frequency Counter can make measurements on a single-shot basis, or calculate the statistics of a set of measurements. Sample sizes from one to one million can be selected. The SR620 will automatically calculate the mean, standard deviation or Allan variance, minimum and maximum for each set of measurements.

Reference Output

   A precision 50 % duty cycle square wave (1 kHz) is available at the front-panel REF output. The REF output can be used as a source of start or stop pulses for any of the SR620's measurement modes. For instance, the length of a cable connected between REF and the B input can be precisely determined by measuring the time delay between REF and B.

 

   Tektronix CMC251 Tektronix CMC251 1.3 GHz Frequency Counter $399.00 Tektronix CMC251 1.3 Gigahertz Frequency Counter

 

Tektronix CMC251 1.3 Gigahertz Frequency Counter

Rent me for $100 a month

   The Tektronix CMC251 Frequency Counter is a multifunction counter which measures the frequency of sine, square, and triangle waves from 1Hz to 1.3GHz. The CMC251 also provides period, totalize and pulse width measurements. The counter has two input channels. Channel A is a standard 1 Mohm input for frequency measurements up to 100MHz. Channel B is a 50 ohms terminated input for use in high-frequency systems up to 1.3 Gigahertz. The temperature-compensated, crystal-controlled time base is stable to ±1 part per million per year.

 The Tektronix CMC251 Frequency Counter can make the following frequency-related measurements

    The 10 MHz internal time base (using a highly stabilized crystal oscillator) provides a single-shot resolution of 100 ns. Measurement results are displayed using an eight digit display, automatically placing the decimal appropriately.

Channel A

Channel B

  XL Microwave/ Pendulum 3260 XL Microwave/Pendulum Model 3260 26.5 GHz Frequency Counter Contact Sales XL Microwave/Pendulum Model 3260 26.5 GHz Frequency Counter

 

XL Microwave/Pendulum Model 3260 26.5 GHz Frequency Counter

Rent me for $500 a month

   For bench and test systems applications like R&D, Service, incoming inspection, quality control and manufacturing test of RF components, systems or subassemblies, microwave transmitters/receivers, radar equipment etc, the models in the 3260-series gives you ultra-high performance and remote GPIB connectivity. Three instruments in one: Measurements are accurate and fast, with less than 60 ms acquisition time. With the Rubidium oscillator option, you will not only get a high-accuracy microwave counter, but also a 10 MHz reference output frequency for the local lab or for the ATE-rack, where you can supply other instruments with an atomic frequency standard. In Test Systems you save valuable space by integrating three instruments in one package; a mm frequency counter, a power meter and a frequency reference.

Features

  • Simultaneous Frequency and Power measurements

    •

  • Wide frequency range from 10 Hz to 26.5 GHz

  • Compact, portable, rugged and battery operated

  • High stability Oven-controlled Crystal timebases and ultra-stable Rubidium option

  • Short acquisition time (<60ms)

  • Outstanding performance/price ratio

  The 3260-series of microwave counters provides simultaneous measurement of both frequency and power and are well suited for field, lab-bench, and test-rack environments. For field applications like installation, maintenance and calibration of microwave links, radar CW, microwave transmitters, DAB or DTV links, satellite ground stations or radio base stations, the models in the 3260-series give you ultra-high accuracy in a portable compact, lightweight and rugged design. A weather-resistant instrument back-pack is included with the battery power option.

   Very Easy to Use: To eliminate operator mistakes, the instruments are very easy to use and require no costly training. The front panel controls are self-explanatory and the read-out of result is unambiguous due to the bright LED display which ensures full visibility, whether in full sunlight or in low light.

  Yokogawa TA320 Yokogowa TA320 Time Interval Analyzer $14,995.00 Yokogowa TA320 Time Interval Analyzer

 

Yokogowa TA320 Time Interval Analyzer

Rent me for $200 a month

   The Yokogawa TA320 has two sampling modes: "time stamp mode" and "hardware histogram mode". In the time stamp mode, the TA320 records both of elapsed time and  measurement result. In this mode the user can observe period variations in measurements with time by using the TIME VAR button. In the hardware histogram mode, the TA320 acquires up to 99,999,999 samples. In this mode high speed statistical computation of a great number of samples can be implemented

Features

  • Two Choices of Sampling Modes
    The TA320 has two sampling modes: " time stamp mode" and "hardware histogram mode." The time stamp mode allows the user to measure both variables and the time that measurements are taken. Thus, the user can analyze variations in measured variables with time. The hardware histogram mode allows the user to sample up to 99,999,999 (108-1) data items, enabling high-speed statistical computation of massive amounts of data.
  • A Wealth of Display Formats
    Four types of display formats are available: histogram, time variation, list and statistics.
  • 3.5" Floppy Disk Drive
    The user can save panel setup information and TIFF format screen image data, as well as measured data values, on floppy disks.
  • External Arming & External Gating Functions
    The external arming function allows control of the time to start measurement by means of external input signals. In addition, the external gating function is available to control the measurement time.
  • Inhibit Function
    This function allows control of the time period that inhibits input signals from being captured.
  • Multi-window Function
    The analyzer presents a maximum of 16 different histogram windows, enabling data analyses of rectangles, one by one, occurring in multiple numbers in a histogram

Front Panel

  • Large liquid crystal panel, and an intuitive touch screen
  • Input channels CHA, CHB, 3.5" FDD
    Measurement data, information set on the panel, and TIFF format screen image data can be stored on a floppy disk.
    FDD with MS-DOS format, supporting various modes.
  • PLOT key
    Enables printout of screen images from an external plotter.

Rear Panel

  • External adjustment hole for calibration(10 MHz clock)
  • 10 MHz reference input/output, monitor output A/B
    Enables the CHA and CHB input signals to be output for monitoring.
  • External arming input
    This terminal enables the timing of the start of measurement to be controlled by an external input signal. It also functions as an external gate input terminal to enable the measurement time to be controlled.
  • Inhibit input
    Enables the time band during which the acquisition of the input signal is inhibited to be controlled by an external signal input.
  • 100 V to 240 VAC free supply voltage input
     
  • GP-IB interface (standard)
    Conforming IEEE Standard 488.2-1987.

 

  


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