Note
Ham Radio, Jan 1972, p. 68.
QST, Nov 1973, p. 152.
Two models cover the frequency range from 1.8 through 30 MHz and the third covers from 50 to 150 MHz.
The Model 4350 measures forward and reflected power in two ranges: 200 and 2000 watts, while the Model 4351 has ranges of 200 and 1000 watts.
The Model 4352 has ranges of 40 and 400 watts covering 6 and 2 meters.
Uses Bird's Thruline construction.
The Ham-Mate has a minimum of 20-dB directivity which assures meaningful reflected power and VSWR measurements.
All three models sell for $79.
References
Brief Description. Ham Radio, Jan 1972, p. 68