R_F_TRANSMITTER_POWER_AND_VSWR_MONI_TOR

Published:2009/7/17 2:24:00 Author:Jessie | From:SeekIC

Standing-wave ratio is indicated by position of shaft of potentiometer R7 in bridge circuit, when switch is in vswr position. Diodes D3 and D4 act with Q1 as alarm circuit that interrupts power amplifier plate voltage when vswr exceeds preset limit. At other switch position, actual r-f output power in watts is indicated on d-c milliammeter.-L. F. Stein, Versatile R.F Monitor Shows Power and VSWR, Electronics, 36:13, p 44-46.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Measuring_and_Test_Circuit/R_F_TRANSMITTER_POWER_AND_VSWR_MONI_TOR.html

Print this Page | Comments | Reading(3)