[GreenKeys] feeding audio to TU

[Roy Morgan]

At 10:42 AM 3/9/2007, Eugene Hertz wrote:

>The harris has separate LSB and USB line-level audio outputs ... 3 
>connections called:
>
>LSB LINE AUDIO
>LSB LINE AUDIO-CT
>LSB LINE AUDIO
>...
>My TU is the venerable HAL ST-6 whose audio input has the shield grounded 
>(IIRC).  So what is the best way for me to take this 3-legged audio 
>transformer output and make it single-ended for use with the st6?

EUgene,

You are lucky to have a floating output transformer.

Get some shielded two-conductor wire and whatever connector you need for 
the ST-6 (Does that one use Molex connectors like the ST-6000?)

Hook the two "LSB LINE AUDIO" connections to the two conductors.
Hook the shield to the ground/chassis of the ST-6
Hook one of the "LSB LINE AUDIO" wires to the ground AT the ST-6
Hook the other "LSB LINE AUDIO" wire to the input of the ST-6.

What about the shield at the reciever, you say? Try it grounded to the 
receiver and not grounded. See which one produces less noise in the ST-6 
(or ability to copy smaller signals.)

Roy



- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing
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