Thanks to everybody for their answers/suggestions. I found some info
on Conny's board and it mentioned needing an additional buffer board but
it wasn't immediately clear to me if you only needed the buffer board
when trying to run Conny's board in both a TR-7 and RV-7 or what. I'm
guessing you don't need the buffer board if you only want to install it
in the TR-7 but I'm not sure at this point.
Curt - It's mostly a matter of "operator convenience" for me. As others
have noted, the TR-7 drifts a fair amount. If I'm actively operating
the radio, it's no big deal to keep tweaking it on frequency. But I
frequently have my radio hooked up to an FM transmitter so I can monitor
HF nets elsewhere in the house and the drift is annoying. Plus, I'm
lazy. :)
My general intent when I acquired the RV-7 (given the wild cost of
RV-75s) was to convert it to a DDS but I'm waffling on that and thinking
instead about just putting a stabilizer in the TR-7 for now.
Dave
K8JDC
GM Gents:
Just curious as to the need for stabilization on the TR7. Mine seems
very stable..at least appears as good as my 4 line. While I haven't
measured it, it has given me no reason to do so. I run equipment here
primarily on CW and Digital modes including JT65 and RTTY so notice
drift if it gets to be an issue. My TR7 does have the fan installed
and I wonder if that perhaps makes the temperature induced drift a lot
better. I have one of the x-Lok kits from Cumbria Designs but was
going to put it into a Old TS 700 that I use on 2M. So..share your
motivation to install the stabilizers/DDS. BTW, while I try to do any
mods to my drakes in a way that requires no holes or other cutting, I
am not necessarily a purist..if it can be made significantly better, I
will consider it. ie, I use a softrock SDR receiver as a panadapter
for my r4 and also use an add-on digital frequency display.
Thanks
Curt
KU8L
A and B twins, TR3, TR4, TR7
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