Audio Ptt Interface

PTT Interface - QSL.net

https://www.qsl.net/sv1hao/Schematic1.htm

PTT Interface. A simple PTT Interface. Most modern transceivers have a built in interface. These interfaces work well in digital modes, but seem to lack support in analog voice modes. A case in point is the Yaesu transceivers that only permit …

Simple Radio PTT To Computer Interface Circuits

http://www.echolink.ru/downloads/ptt_to_computer.pdf

Simple Interface for Handheld Radios A handheld’s mic and PTT are normally combined, hence circuit 3 was designed and works admirably. Audio levels can only be adjusted by the computer’s level control. Stereo 3.5 mm plugs connect the line in and out on the computer soundcard. Use the

GW8IZR - Simple rig audio and PTT interface

http://www.gw8izr.com/interface.html

Some DSP software lets you listen to the processed audio on one channel while generating, for example HSCW, on the other. If you make use of this audio you MUST maintain the screen isolation. Don't make the mistake of connecting it to your SO2R box with a patch lead then wonder where the hum is from. Isolated PTT and CW Key interface,

PTT (Push to Talk/Transmit) Cable - Sound Card Packet

https://soundcardpacket.org/7cableptt.aspx

Note: Because a sound card has two audio channels, it is possible to interface two (2) radios to a single sound card. This page describes how to make a cable to control the PTT for a single (1) radio. See the Interfacing 2 Radios to 1 Soundcard page for a dual PTT cable.

Push-to-Talk (PTT) Radio Testing - GL

https://www.gl.com/test-audio-quality-land-mobile-radios-lmr-push-to-talk-ptt.html