The use of the conversion from 5 MHz VFO is indeed how the USB vs. LSB convention got started. With 9 MHz IF you got 4.0 MHz (80M) and 20M, (14 MHz.) 9 -5 in one case, 9+5 in the other, with opposite Sidebands.
The first use of such was probably the Central Electronics or similar tube transmitters in the early SSB days of the 1950's. In 1967, I had my electronics class, that I taught in 9M2 land, build a transistorized transmitter using the dual band scheme from "The Transistor Radio Handbook" by Les Earnshaw, ZL1AAX, who later came to USA and founded Kachina Communications, of the first PC radio fame. This is a neat way to get two bands from one VFO and common components of the times. 72, Stuart K5KVH _______________________________________________ Elecraft mailing list Post to: [email protected] http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
