Telewave Model 44A 20-21 Mhz Portable Wattmeter
Telewave Model 44A 20-21 MHz Portable Wattmeter
Rent me for $100 a month
Does not require slugs or plug ins. Compare me to the Bird 43 and 4431
The Telewave Model 44A RF Wattmeter is a compact, versatile instrument used for direct measurement of forward and reflected RF power. Thanks to its wide band capability and dynamic range, no elements, inserts, or band switching are required.
- No bandswitching
- Measures 1 to 500 watts
- Five power ranges
- Frequency range 20 to 21 MHz
- Measures forward and reflected power
- Shock-mounted meter movement
- Light weight - easy to carry
The 20 uA taut-band meter movement is shock mounted in a rugged, diecast housing, making this instrument ideal for mobile radio installation in aircraft or vehicles, as well as base stations. This wide-band instrument covers the frequency of 20 to 21 MHz with a power range of 1 to 500 Watts. The meter movement can be turned off for rough handling when not in use. A leather carrying strap is provided to facilitate portability. The Model 44A has built-in precision directional detectors which sample forward and reverse CW power flow in a specially engineered section of transmission line. The sampled current is scaled to drive the 20 uA taut band meter. Forward and reflected power can be directly measured by using the FWD-REV switch. VSWR (Voltage Standing Wave Ratio) is easily determined by comparing these measurements and using the convenient chart on the back of the instrument. Five power scales are provided.
The 500 watt scale will test most high powered transmitters, while the 5 watt scale makes it simple to tune low powered portables. The excellent stability of this unit and the ability to switch it from one power range to another to check the calibration eliminates the need for a secondary standard to verify calibration.