144_MHz_FOR_VSWR_BRlDGE

Published:2009/6/28 22:32:00 Author:May | From:SeekIC

Modulated signal source provides 10-mW CW output and 5mW modulated output at modulation frequency of 1000 Hz. Spurious and harmonic outputs are 40 dB below desired output. 72-MHzcrystal oscillator is followed by doubler stage. attenuation between generator and load. Use Oscillator runs continuously while doubler is regulated power supply or batteries.-J. flei-keyed whh simple ON/OFF square-wave keying, Freedom from load variations is obtained with double-tuned output filter providing up to 6-dB attenuation between generator and load, Use regulated power supply or batteries.-J.Reisert, Matching Techniques for VHF/UHF Antennas, Ham Radio, July 1976, p 50-56.



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