[Elecraft] Re: KX-1 and 15M

[Bruce Beford]

Wink and nudge all you like. 15M for the KX1 is unlikely to ever happen,
IMO. The DDS is driven by a 50 MHz clock. This sets the maximum clean output
frequency at about 16.6 MHz. (Clk/3). There is also a 14 MHz low-pass filter
on the output of the DDS. So, to do 21 MHz would require a new master clock
(surface mount),  and new output filter for the DDS. Of course another
(switchable) LPF filter for the PA and new firmware... Many of us users
would be willing to make the mods, but I just don't see it as an Elecraft
priority for a retrofit. Perhaps a new (rev B) version could be made, but I
imagine it would be a trade-off. I doubt 5 band capability could be done
without a lot of redesign. Perhaps you could make a 40M to 15M transverter,
and put it in place of the ATU...

72,
Bruce N1RX
KX1, K1, K2 and (soon) K3 user.