I was hooking up my Baofeng UV5r to my computer for using various digital modes and echolink with my yaesu ft-60r or other radio things that involve a computer. What's strange is that whenever I plug Baofeng out to computer in and Baofeng in to computer out, it starts transmitting and won't stop. The radio was not on VOX and the audio line in from the Baofeng was not playing to the output. It is very frustrating. Any ideas on how to fix it.
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Baofeng uv5r computer sound card tx loop
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nd5y
Member
What kind of cable(s) are you using to connect the radio to the sound card?
What kind of PTT circuit?
Are you just plugging two cables into the computer with no interface?
What kind of PTT circuit?
Are you just plugging two cables into the computer with no interface?
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I don't have any PTT interface. I am eventually just going to use VOX. I am using just audio cables. In the picture I attached, there is two cables, a red one and a black one. The black one being Baofeng out to computer in and the red is vice versa. I notice that when I touched the mic conductor (which I did not need on the black cable, it's just how it was made) of the black to the ground of the red was the only time the radio started transmitting. I don't know if this might have anything to do with the problem but it was just an observation I made.
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nd5y
Member
You can't do that. The "ground" on each connector on the radio is used for the speaker mic PTT lines. That's why it keys up when you plug them both into a computer. See the pinout at Technical Section - Miklor
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