TUNED_RF_WAVEMETER

Published:2009/7/10 5:40:00 Author:May | From:SeekIC

L1 and L2 form a tuned transformer. About a 1:3 turns ratio is optimum. L2 and C1 tune to the desired frequency. The frequency range can be 10 kHz to over 200 MHz, depending on the value of C1.For HP use, C1 can be a 140-pF variable. For VHF, use about 25 μF. Use of a 2.5 pH RE choke will yield an untuned wavemeter.



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