2002 - 2022 i1wqrlinkradio.com
Voice Keyer Ver. 1.08


Audio voice keyer microphone input, speaker output record/play audio from twelve memories
post 24 Dec 2021


Voice_Messages_Keyer Links

34



MicroHAM High-End Contesting & DX-ing Accessorie
radio logging software-rig control-rig interfaces-cat interfaces logic-trx-manager

N1MM Voice Keyer
This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO numerical controlled oscillator to re-produce the originally inverted audio band

PICAXE-08M Standalone Automatic Voice Keyer
I then went back to Quasar Electronics and looks at the other options and decided on and bought the 3189 kit which is a 120 second multi-message sound recorder module

PC Voice Keyer audio interface
We use sm3wmv PC-based Voice Keyer software. This plays a pre-recorded sound file when you press one of the function keys, and puts the radio into transmit using the RTS line of a serial port

Pic keyer
QRP keyer circuit diagram for PIC16F84

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