[Heathkit] HW-18-2

[Michael Tauson]

On Thu, Nov 26, 2009 at 5:35 AM, Bwana Bob <wb2vuf at gti.net> wrote:
> Penson also says that the rig can be converted to LSB by changing the
> crystal from 3396.5 MHz to 3393.5 MHz. He also says that "VFO operation is
> possible by connecting the VFO output directly to one of the crystal sockets
> (observe polarity) via a short length of RG-58/U. VFO output should be
> between 1 and 2 volts RMS."

Ah, cool.  The crystal change is what I figured so this is good.
Using a VFO hadn't occurred to me (doh!) but I'll check that out.

> So it probably would not be hard to convert it to 75 m LSB. It wold be
> really intriguing to convert it to 60 meters, but the cost of crystals for
> channelizing it these days might be more than the rig is worth.

One plan is to install crystals for the 80, 60 and 40m RACES
frequencies with sideband selection ganged to the channel select
switch.  The driver & PA tanks would have to reworked but that's a
little headscratching assisted by calculators available on the web.
(Ah, the wonders of cheating!)  Unlike the HW-101, the path from mic
to antenna doesn't have any extra twists and turns (band setting
oscillator & mixer) so would be easy to calculate.  Easy is good for
those of use who tend toward lazy.  :-)

Best regards,

Michael, WH7HG
-- 
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Hiki Nô!