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Books, kits and accessories for the active ham


by Idiom Press, designed by Allen Baker KG4JJH

LogiTALKER front panel

Save your voice and let the LogiTALKER do the talking!

The LogiTALKER is a stand-alone voice keyer that goes between your radio and your microphone.  It uses your regular microphone to record up to four messages, to be played back at the touch of a button.  It's the simple, easy-to-use, inexpensive way to save your voice in a contest!  One message can be set to auto-repeat, which is perfect for running stations, or as a voice beacon, or for calling CQ automatically as a band opens.

The LogiTALKER works with just about any microphone, dynamic or condenser, that has an eight-pin round plug or an eight-pin modular plug.  It can be reconfigured for a different brand of radio by reconfiguring jumpers, so your LogiTALKER isn't tied to just one radio.

Only $120 as a kit, or $150 assembled and tested!



The LogiTALKER was invented by Allen Baker KG4JJH, who wanted a compact and simple device to save his voice in contests.  The result was his design that he called the Vocal Keyer, which was featured in an article in the June 2009 issue of QST.  With the addition of a few features and a custom enclosure, the Vocal Keyer became the LogiTALKER. The Logi-TALKER is based on an integrated circuit, the HK828, that provides high quality single-chip record and playback.  The HK828 integrates many of the components necessary for a voice keyer, including an oscillator, microphone preamp, automatic gain control, antialiasing filter, smoothing filter, speaker amplifier, and nonvolatile memory.  Because so many functions are provided by one integrated circuit, the LogiTALKER delivers first-rate performance at a very competitive price.


Message ModeSampling RateInput BandwidthMessage Length
2 messages 8.0 kHz 4.0 kHz 2 x 16 sec
4 messages 6.4 kHz 3.2 kHz 4 x 10 sec


The LogiTALKER manual (English) is available here.


HLF cable accessory

The MCFR output cable is a shielded cable with a modular (RJ45) plug on one end and an eight-pin round "Foster" plug on the other.  Such a cable is required for radios that have eight-pin round "Foster" microphone jacks.  The length is 3' (90 cm).



  Price Description USA
$120.00 LogiTALKER voice keyer kit $7.00 $12.00
$150.00 LogiTALKER voice keyer, assembled & tested $7.00 $12.00
$17.95 MCFR output cable, Foster to modular, 3' (90 cm) $2.00 $4.00
$4.00 MCM output cable, modular, 3' (90 cm) no charge $2.00
$5.00 PWC power cable no charge $2.00

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