Spectra Signalling Options

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BikerScout
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Spectra Signalling Options

Post by BikerScout »

What kind of signalling options are available to me using Spectra radios? What type of signalling will allow me to take advantage of the Horn/Lights option on the spectras.
What I would like to do is after several attempts to call someone with no answer. I would like to send a signal to the vehicle to turn on the Horn/Lights to alert someone that I am trying to get ahold of them.
This will be used on a ranch that is about 15 miles from the nearest neighbor so the anoyance factor is very low.

Bryan
libuff
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Post by libuff »

mdc-1200
BikerScout
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Post by BikerScout »

Ok, Turn on MDC 1200.
How about the relay for the Horn/Lights? Went by Radio Shack today and picked up a 30 amp 12V Auto Relay SPST N.O.. The part # was 275-0226. Specs say Pull in voltage of 6V and a Drop out voltage of 3.6V. Nominal current is 160mA and coil resistance of 66 ohms. Will this work as a relay for the accessories connector? Was going to hook up pins 4 and 3 for the horn.

Bryan
Will
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Post by Will »

Yes that relay should work OK.

Depending on the Spectra MLM version the signaling could be DTMF, and or MDC decode call alert.
n0top
Posts: 21
Joined: Sat Feb 18, 2006 9:14 am
What radios do you own?: Maratrac,Spectra and Maxtrac

Spectra MDC1200

Post by n0top »

Hello Will, Name hr is John Verser de N0TOP.
I had a guy progarm my radio and he said I could not use my call sign
for a MDC1200 "ID". Is there a other way ?
:o
John de n0top
Will
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Post by Will »

John,
that is correct the MDC is a four bit ID, 0-9 and A-F are the only allowed char.
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mr.syntrx
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Post by mr.syntrx »

That's sixteen bits ;)
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