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Author Topic: Computer soundcard out to VHF transmitter-HOW?  (Read 657 times)
KD6SRI
Member

Posts: 7




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« on: January 07, 2004, 02:55:46 PM »

How do I properly interface my computers sound card out to my VHF transmitter? I want to do this so that I can have Newline on my club’s repeater. I know that you do not want to connect the sound card out to the mic input on the transmitter directly. Do I need a 1:1 transformer in-between?

Thank you,
Adam Huber
KD6SRI  

(I have posted this to two forums since it could belong in either forum.)
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OBSERVER11
Member

Posts: 657




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« Reply #1 on: January 08, 2004, 08:29:56 PM »

do you want to make this an automatic control connection or manually cause the transmitter to key?

Any sound card interface for your brand of radio should do want you want.

You can also build an interface yourself.

check out www.packetradio.com, www.qsl.net/wm2u, www.k6xx.com for more ideas.
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KG4HLZ
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Posts: 21




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« Reply #2 on: February 14, 2004, 09:41:48 PM »

I have done this successfully with just a 100K resister. If you want do this under software control, I have a program that I put together in the Python programming language. I could post the PTT subroutine as an example.

Bruce
KG4HLZ
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