Jerome,
Check out http://kd4dcy.net/jupiter/mod_ifout/mod_ifout.shtml This page
shows a modification to bring the 12 kHz IF signal out from the Jupiter's
receiver to the SPARE phono jack on the rear panel. If you open you Jupiter
and find that Receiver board, you will see that one of the pins on one of
the connectors at the edge of the board (not the connector that has the 12
kHz IF shown in the pics) is labelled Rx Ant. You can run some mini coax
from the SPARE jack to this connector to create an Rx antenna output for the
Jupiter which you could feed to the Rx input of the 920. This signal is
isolated from the Jupiter's Tx RF. The only little gotcha is that this is
located after the Jupiter's low pass input filtering, so it won't work well
if you are on different bands. Maybe someone else can find a better picture
of the mod for you. This Rx antenna mod is pretty common.
73,
Mark
----- Original Message -----
From: "jerome schatten" <romers@shaw.ca>
To: <tentec@contesting.com>
Sent: Friday, September 17, 2004 1:56 PM
Subject: [TenTec] jupiter tx / ft920 rx
> I live in a very noisy environment with regards to powerline noise. I find
> the jupe's noise blanker and noise reduction system totally unable to cope
> with anything but ignition noise and not very well at that. My ft920's
> ability to receive well under harsh noise conditions is more than
> satisfactory. When the noise is not too severe I prefer the jupe; tx and
rx.
>
> I would like to be able to use a single antenna and have the jupe tx and
the
> 920 rx. I can do the opposite with no problem... 920 tx, jupe rx as the
920
> has an rx output that allows a separate receiving antenna to be used.
>
> The ft920's keying is mushy soft on make; the sidetone has nothing to do
> with what goes out on the air and the qsk is unspeakably vile, else I
would
> just use the 920 under difficult noise conditions.
>
> I would appreciate suggestions as to how to use the jupe tx / 920 rx
> hopefully retaining the jupe's excellent qsk.
>
> Jerome - VA7VV
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|