On 3 Sep 2003 at 5:30, Larry Schimelpfenig wrote:
> The commercially produced SO2R boxes all look great, but if price is an
> object and you don't need all the function, I have to agree that duplicating
> the box in the "NA" manual is the way to go. It doesn't have to be
> expensive, especially if one has a fair junk box as a source for connectors.
> The heart of the thing is some small low voltage relays available from the
> local Radio Shack for around five bucks a pop.
I don't know what the NA box does, but for a long time I got by just fine using
a
homemade RX switcher made from a guitar switch (nice big handle) that allowed
Left only,
Right only, or Both in my headphones. The TX switching was done automagically
in TR,
using 2 LPT port keying interfaces. Worked great.
The only reason I'm using the DX Doubler now is that I got a good deal on one
used
(including two cables that matched my radios!). It's got a little more
flexibility as
far as switching the 2nd rig into both ears while XMITing - which lets me leave
my
sidetones turned up for non-contest operating. More importantly, it's got
built-in
microphone audio switching, which I would had to have worked out on my own
otherwise.
Oddly, the guy I purchased the DXD from was getting rid of it because he'd
gotten a new
WX0B box...
73 de Lee
--
Lee Hiers, AA4GA
Cornelia, Georgia
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