MFJ -432 Voice Keyer
Voice keyers call CQ, send your call, and do contest exchanges for you in your own natural voice.
MFJ 434B Deluxe Voice Keyers
Let one of these microprocessor-controlled MFJ 434B deluxe voice keyers call CQ, send your call, and do contest exchanges for you in your own natural voice. You can record and play back five natural-sounding messages in a total of 75 seconds. EEPROM technology keeps messages stored for up to 100 years--no battery backup is needed. You can repeat messages continuously and vary the repeat delay from 3 to 500 seconds. They make a great voice beacon and calling CQ is easy.
A receive audio jack lets you record and play back off-the-air signals, which is a great help if you didn't get it right the first time. A playing message can be halted by pressing the stop button, your push to talk mic button, or your VOX push to talk line. The MFJ 434B deluxe voice keyers have a jack for remote computer control (using CT, NA, TR, or another program and its interface).
They are transparent to your microphone--your mic's audio characteristics do not change when they are installed. Dual controls make it easy to tailor audio levels to match your voice. All audio lines are RF filtered to eliminate RFI, audio feedback, and distortion. An audio isolation transformer totally eliminates the hum and distortion caused by ground loops. They also have internal jumpers that let you customize them to Kenwood, ICOM, Yaesu, Alinco, or Radio Shack rigs.
Other features include:
* Built-in speaker amplifier lets you monitor stored messages
* 3.5mm speaker/head phone jack
* 9 V battery
* Compact size