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echo: ham_tech
to: BILL DOBIESZ
from: BRUCE LEGRANDE
date: 1998-01-12 16:11:00
subject: 11M/10M mods

Bill Dobiesz wrote in a message to All:
 BD> I know others have done it before...but I would like to know if
 BD> anyone there  has modified an 11 meter rig (specifically a Johnson
 BD> Messenger 123A) to 10  meter use.
AFAIK, Bill...  The 123A is an AM-only rig, correct ?
Being a Tech myself, I don't believe 'we' can operate that
mode ANYwhere in the 10m band - so that would mean radically
changing the modulator circuitry of the radio (TX & RX) in
order to operate between 28.3 and 28.5 Mc SSB.
If I'm in error re: AM emissions on 10m - please advise.
The other alternative would be a conversion to FM, but there
again, I believe that mode is only 'legal' (in the USA at least)
above 28.5 Mc and 'we' as Techs don't have allocation above that.
I saw a project in an old book around here a couple years ago
about building a small FM De/Modulator that would accomplish this,
and if you're interested - I -MIGHT- be able to run it down.
(don't have a scanner though. :(
BTW: If you decide not to mess with it, and you consider throwing
     the unit away - pack it up and send it here instead.  I used
     to have one of those and would welcome it in my collection.
 (so far, I have a; Navaho, Comstat-25b, Pre-Mark Golden Eagle, ...)
Sincerely,
           Bruce - ck@saber.net ( http://qsl.net/kb6lwn )
... HamTECHS, pls see www.qsl.net/kb6lwn/antquest.html - Any help ?
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