VK7DC 
REPEATER/BEACON MORSE CODE I.D. UNIT

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This simple board outputs morse code audio identification for FM repeaters, or FSK output for beacons
or other transmitters that require CMOS/TTL level input.  Easily interfaces with radio equipment.
Use it for a foxhunt event to key up a hidden hand held transmitter and identify.
 
Pic Microchip based circuit, with stable internal crystal oscillator.
Suitable for repeater or beacon morse code identification.
Generates morse code at approximately 12wpm and 2kHz tone.
Supplied pre-programmed with your desired message and time delay.
The ID unit is capable of having the time delay or message reprogrammed via RS-232
with your PC and a simple DIY additional interface circuit.
Can be used with either positive or negative edge triggering to suit your requirements.
Also can run in beacon mode, where ident repeats automatically after the set time delay expires.
FSK output, which can be used to drive your own audio oscillator or generate true FSK by modulating a crystal or similar. Even drive into a  HF rig morse key input by adding a simple transistor switch.
The PTT output turns on only while the ident is occuring.
Can be used as a fox hunt auto key-up and ID for a hidden 2m/70cm transmitter.
For a programming terninal I recommend Termite.exe  for Windows PC's, or Serial for Linux PC's
SAMPLE BOARD

Amateur radio, cb radio, morse code id unit, repeater 12 wpm 2kHz tone. morse code, FSK output

SPECS

Current consumption ~ 10mA

Required supply voltage    8-16Vdc, or  5Vdc if bypassing regulator

ID speed ~ 12wpm
ID tone ~ 2kHz
Price: Fully built, programmed and tested -  $60 + postage (at cost)
Programmed chip only - $25 + postage (at cost) for DIY circuit board builders 
Contact :   daveland100  at  gmail dot com

Veroboard layout / Circuit diagram
Setup and programming info. How to re-program time and morse ID text with the following interface
RS-232 Programming interface diagram

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