John,
I use the acc jack on the back of the 706 and a relay-in-a-cable
to the sb200's key line. It is basically the hsend pin which is used
to trip the amp into TX.
/steve n9oh
----- Original Message -----
From: "WA9ALS - John" <wa9als@starband.net>
To: "Steve Woodruff" <sjwoodr@yahoo.com>; <writelog@contesting.com>
Sent: Sunday, November 10, 2002 5:38 AM
Subject: Re: [WriteLog] ptt resistance (part 2)
> I don't have an amp with my 706, but I do with the 756PROII. My amp is
> keyed by my rig, and the rig with an interface like you've described. How
> is your amp keyed, exactly? If your rig keys properly, and your rig keeys
> your amp, then it follows that your amp would key properly too. Can you
> tell us mor Steve?
>
> ----- Original Message -----
> From: "Steve Woodruff" <sjwoodr@yahoo.com>
> To: <writelog@contesting.com>
> Sent: Sunday, November 10, 2002 1:04 AM
> Subject: [WriteLog] ptt resistance (part 2)
>
>
> >
> > Ok - just when you thought this thread was dead.
> > Using WL as my voice keyer... and as of last
> > night i thought all was good. I changed the
> > circuit to be 1k ohm into a 2n2222. When WL
> > plays the ssb message, the rig trips into TX
> > and back to RX after the message is done. Ok.
> > Now today i tested it with the amp on. Oops.
> > The amp goes into TX mode as soon as i turn
> > it on -- and only goes off when i remove the
> > PTT cord that i built for WriteLog (RTS from
> > cw/serial port).
> >
> > I measure ~1450 ohms resistance when the PTT
> > is *NOT* tripped -- its not enough to keep
> > the ic706 in TX mode, but is that enough to
> > trip the amp into TX? Maybe so. I will try
> > to substitute a 2.2k ohm resistor for that
> > 1k resistor and see if it helps. I did have
> > a 4.7k resistor before -- but then i couldn't
> > even get the rig to TX via this ptt line.
> >
> > any suggestions from those WL users who've
> > gone through this before appreciated!
> >
> > tnx
> >
> > /steve n9oh
> >
> >
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>
>
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