David wrote:
>Well, that just sways me back to the 'I won't bother with a K1
>(since I have a KX-1) position and just get a K2 next (even if
>it is not quite a unquantifyable pure sounding as a K1).
Well, David, I'm sorry to hear about anyone foregoing a K1. It is my favorite
QRP rig of the nine that I own, eight of which were put out by three other
outfits. In fact, it's my favorite of any QRP rig I've ever heard about.
The first technical hurdle you'd have to overcome wouldn't be all that hard:
Re-designing the lower-frequency receiver input/transmitter output LPF so that
you could have 30m and 20m on that filter.
The existing third-order elliptical filter rolls off steeply just above about
10.5 MHz. You could use the "Elsie" freeware found at:
http://tonnesoftware.com/elsie.html
to come up with something similar that rolled off near 14.5 MHz instead.
With a little head-scratching and thought, the re-arrangement and value changes
of fixed caps in the two other band-pass filters shouldn't be impossible for
supportting 20m and 30m as band 1 and band 2.
My point was not that it would be impossible to do what you wanted, but just
that it would take some work and re-design.
Good luck, what ever you decide.
Mike / KK5F
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