[1000mp] help connecting soundcard input.

[Pete Smith]

At 07:17 AM 8/18/02 -0500, Morris Wideman wrote:
>PS, I have a rigblaster but only with RJ45 and therefore work not trought
> >the 8 pin connector on the front.
> >

I used a Rigblaster for a little while with my MP.  All you have to do is 
wire the cable tom a standard Yaesu mike plug.  The manual is quite 
explicit about which wire is which coming from the RJ-45.  One advantage of 
the rigblaster is that the audio isolation transformer is built in, which 
helps on AC hum from ground loops.

Another trick, which works fine for me, is to set my sound card for full 
duplex and run the microphone through the sound card.  You can still set 
the levels individually using the Windows mixer.  This way, all you need is 
to plug your microphone into the sound card and connect a cable from the 
line out on your sound card to the microphone jack.  If there is hum on the 
audio insert an audio isolation transformer to break the shield 
continuity.  If you want, it is easy to rig a "cough switch" so that you 
can mute the microphone as needed, or you can mute it from the Windows 
mixer and turn it back on when you're done operating digital modes for the 
moment.


73, Pete N4ZR

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