Bob,

I guess it is worth a try if you really want to do that. The BFO frequency must change to the other side of the IF.

One reason I can see for changing USB to LSB is to change the pitch of the received signal note as you tune upward in frequency. With USB, the pitch decreases as you tune upward, and with LSB it increases. Whichever is better is a personal preference, and some folks don't really care. If you are one who does not care, then I suggest that you leave well enough alone.

73,
Don W3FPR

Bob P wrote:

Saw a article in FISTS news letter about mods for a K1, Changing USB to LSB,
Does any one have comments if this works and why do it ??.

Mod is remove RFC1 and jumper it, then realign BFO

Bob KC8IPQ
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