JDSU/Acterna SDA-5500 Head End Forward Sweep Transmitter

JDSU/Acterna SDA-5500 Head End Forward Sweep Transmitter
Manufacturer: JDSU/Acterna/TTC /WG
Call for pricing
JDSU/Acterna SDA-5500 Head End Forward Sweep Transmitter

 

JDSU/Acterna SDA-5500 Head End Forward Sweep Transmitter

Rent me for $400 a month

   The JDSU/Acterna SDA-5500 is a rack-mountable head end Forward Sweep Transmitter for use with field CATV Receivers. The unit injects low-level signals in the forward downstream path, inserting signals in vacant channel or spectrum areas allowing a complete check of the system's frequency response. The SDA-5500 also monitors the cable systems carrier levels in occupied spectrum areas for use in the non-interfering Sweepless Sweep where the carrier itself is used as the test signal. The SDA-5500 sends head end signal level readings to downstream receivers. When tuned to a specific channel, the unit provides information on Tuned Channel, Video Frequency and Level, Audio Frequency and Level, and Video and Audio Carrier Level Differences. Provides forward sweep and single user reverse sweep for SDA-5000. Compatible with older Stealth units running firmware version 9.3.

Headend Units

   To check the frequency response of your system, the SDA-5500 head end transmitter injects low-level signals in the forward downstream path, inserting signals in vacant channel or spectrum areas. It also monitors the cable system's carrier levels in occupied spectrum areas for use in the noninterfering Sweepless Sweep, where the carrier itself is used as the sweep signal. In addition to generating carriers and using existing channels for sweep test signals, the SDA-5500 sends headend signal level readings to the downstream receivers with every sweep update. This technique enables the receivers to compensate for any signal level changes, maintaining the utmost measurement accuracy. The SDA-5510 performs reverse sweep functions only, but unlike the SDA-5500, it allows multiple receivers to work with one headend unit. The SDA-5500 and SDA-5510 can be used together using separate telemetry data carriers.

   The SDA-5500 is a standard 19" rack mount unit weighing approximately fifteen pounds. Its 320 X 240 dot matrix LCD shows measurement data in both graphical and numerical form. It is a full-featured signal analysis meter with a complete spectrum display and an analog representation of single channel measurement data. When tuned to a specific channel, a comprehensive set of information is provided, including:

  • tuned channel
  • video frequency and level
  • audio frequency and level
  • differences between video and audio carrier levels

   The SDA-5500 performs essential cable TV system preventive maintenance tests with accuracy and ease. Signal levels, hum, C/N, and, in tandem with the SDA-5000, frequency response, can be quickly tested without interfering with subscribers┬┐ service. The Sweep System is made up of two components: the field unit (SDA-5000), and one or both of the head end units (SDA-5500 and SDA-5510). Sweep response is tested by injecting a low-level signal in vacant spectrum areas and by monitoring cable system carrier levels in occupied spectrum areas. In addition to generating the sweep test signal, the SDA-5500 continuously monitors the system carriers. It sends head end level readings to the field receiver with every sweep update.

US-Instrument.com