The G4JNT Programmable Beacon Keyer
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12F629 PIC based beacon module offering CW messages, Programmable pauses, Tx/Rx control.
The module can be re-programmed over an RS232 link so a PIC programmer isn't needed to alter the message data.

User Manual for standard and analogue input versions

New QRSS (SlowCW) Option now available
Please state on ordering if you want the QRSS version. PIC Code for both is included within the archive


Beacon Keyer with Analogue Input

Using a 12F675 PIC with internal A/D converter. A voltage in the range 0 - 5V is measured and can be sent back in the CW message in a number of different formats offering user-defined accuracies and complexity. The reading can be embedded anywhere within the CW message and can be sent at any speed.
Use, for example, to allow a beacon to transmit its own measured RF power as a user confidence check.

Full Archive Of User Manual (standard and analogue versions) and Programming instructions - with PIC Code Circuit diagram and PCB for DIYers


NEW - Time Stamped Message Keyer
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A completely new beacon keyer using a 16F628A PIC, has the same functionality as the standard keyer but also generates a cryptologically secure time-stamp. This is appended to the message as a three character triad, a pronounceable 'pseudo word', so that listeners will be able to prove they heard the signal at a particular point in time. A sort of Electronic QSL

Full details of the Time Stamp Algorithm. BeaconTimeStamp.pdf
Module description. KeyerTimecode.pdf
Support Software and PIC code for DIY builders. TmStmpCode.zip


Fully built keyers available now...

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