100_200_kHz_TO_18_2_MHz

Published:2009/7/16 3:18:00 Author:Jessie | From:SeekIC

High-performance low-frequency converter picks up experimental CW, SSB, RTTY, and beacon signals in 160-190 kHz band for conversion to tunable IF range of modern communication receiver. Double-balanced diode-ring mixer has conversion loss of 6-8 dB and will stand up against strong signals without causing overloading and cross-modulation. Use 1N914 matched diodes. Diplexer at mixer output is tuned to 3 times converter IF. Article covers construction and alignment. -D. DeMaw, A High-Performance Low-Frequency Converter, QST, June 1977, p 23-26.



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