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I am trying to record audio that is from a two way radio, which is equipped with a d-sub 15 pin accessory connector. I know pin 2 outputs analog audio at -10 dBm @ 600 Ohms, so what do I need to do in order to use this signal?

Service Manual for Radio With Pin Description

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  • \$\begingroup\$ What were you planning on using to record the audio? \$\endgroup\$ – W5VO Oct 5 '12 at 21:46
  • \$\begingroup\$ You will need the corresponding return connection of course. Additionally I would add in a 600:600 Ohm line isolation transformer to eliminate hard to troubleshoot ground loops. These are available from many audio component suppliers in cased or component form. \$\endgroup\$ – KalleMP Oct 25 '18 at 7:17
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-10dBm @ 600Ω (-10dBu) is a consumer level output, it should work fine with any line level input (e.g. PC soundcard line in, Hi-Fi line in).

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