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MFJ-434 Contest Voice Keyer


The MFJ-434 Contest Voice Keyer sends your call and contest exchanges in your own natural voice
post 24 Dec 2021


Voice_Messages_Keyer Links

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QRP keyer circuit diagram for PIC16F84
circuit board that you may use to build the QRP keyer

Taclog interfaces
The parallel interface can key and PTT, but, also key external voice messages Voice Keyer

Voice Keyer interface to PowerSDR
The K9DUR VoiceKeyer was specifically written to interface to PowerSDR TM via Virtual Audio Cable VAC, or to SmartSDR TM via DAX

The Voice Keyer
The project began by researching available keyer IC's

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