Speaking repeater logic PROLOGIC
PROLOGIC is speaking logic for radioamateur repeaters
DSP/CPU controlled operation. Setup can be done by DTMF-commands
The device is suitable for many radios, which has as a digital carrier signal
In Europe the repaters must be controlled by a 1750Hz signal bit and by a CTCSS-signalbit
Connection DF9Female :
1. Power supply 12V 30mA
2. Carrier detector i 12V
4. 1750Hz 12V (if not used, connect to +12)
5. gnd
6. Audio out 0.775mV ( adjustable by a internal potentiometer)
7. CTCSS detector 12V, Alternate to to 1750 or leave not connected
8. Aux control
9. Audio IN (DTMF commands)
Connection can easily changed to 5-24 V, changing resistor
Transmitter control: optoisolator
A red led shows transmiter on signal
A green led shows a watchdog and DTMF-signal
A repeater call is given with a speech
in start, in the end and in 10 minute intervalls ( adustable by a user)
The speech is wav-file supplied by a user
Digital sounds :
After carrier is lost, digitized sound is given after a short adjustable delay
Five different carrrier sounds. All the users can select a suitable sounds by a DTMF commands ABx, x= number 1..5
DTMF command
Each user can select a carrier lost sounds
Each user can start and stop temporaly the repeater by standard commands #9,*0 etc. .
The man user can adjust all the setiings using a service password.
Delivery: A ready made, tested repeater logic circui board, with digited comands. A suer specified call signal.
All the nesseary diagrams,schematics, setup for Televa 800 radio ( 2m,38W). A connector for external radio (DB9) . More indormation in Finnish paper "Radioamateur" March 2004, April 2004, June 2004
Try sound in finnish http://www.probyte.fi/pdf/oh3rne.wav
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