[Yaesu] mp amp keying?

[Billy Cox]

Hi Dave,

I have been keying a pair of MPs via
the Band Data jacks since 1995 into a
a pair of AL1200s with QSK boards and
ZERO problems from me or guest ops ...

Hope this helps!

73 de Billy, AA4NU

-----Original Message-----
>From: K1TTT <K1TTT at ARRL.NET>
>I have had several mp's develop sticky amp keying relays.  This is now my
>most common reason to have them serviced and would like to avoid this if
>possible.  I see the band data jack has a tx ground through a 2n3444
>transistor which is rated at  60v and 1a, with my hf-2500 amps and a small
>relay that locks out the antenna switching I measure either 12v or 20v at
>about 75ma, so it seems that transistor should be more than enough.  Does
>anyone use that band data output for amp keying?
>David Robbins K1TTT