How to... Desktrac & Tone Remotes

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fyrcap100
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Joined: Mon Aug 22, 2005 5:43 pm

How to... Desktrac & Tone Remotes

Post by fyrcap100 »

I am trying to connect a Desktrac to a T5600 and two additional tone remotes. The Desktrac works great with a microphone connected directly to the front mic connector. I can't seem to get the Desktrac to work with the tone remotes. Does anyone have any ideas on how to make this work?
Dan562
Posts: 533
Joined: Mon Aug 23, 2004 7:30 pm
What radios do you own?: Kenwood, Yaesu, ICOM, Motorola

Post by Dan562 »

First of all the Desktrac is probably a Consolette Desktop radio that may not have a Tone Remote Control Decoder module or function in this /\/\ product. You can not plug wires into a Desk Microphone RJ45 Input Jack. In the your Desktrac it would need to have an internal TRC Decoder Module, on the rear panel it would need two terminals or a RJ45 Jack set up and labeled for TRC Remotes to attach a Telco RJ45 Plug or shielded pair of wires.

The T5600 only works with a 600-OHM Line Impedance for Transmit and Receive Audio. On Transmit it sends out 2175 Hz High Level Guard Tone at 0 dBm, then F1 TX 1950 Hz Function Tone at -4 dBm and finally the 2175 Hz Low Level Guard Tone at-30 dBm to hold the Transmit function Keyed until the PTT is released from the Remote. PL Disable is sent down the 600-OHM lines using the same method although a 2050 Hz Function Tone is sent to the Decoder to open the PL Squelch allowing the station's Carrier Squelch recovered audio to be heard on the T5600 Remote's speaker. This provides the Monitor function of the RF channel before Transmitting. A FCC requirement.

Using Additional or Multiple T5600 TRC Consoles will require hardware Jumpers set for High Impedance so they do not load down the 600-OHM Lines causing more problems.
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cfacer
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Post by cfacer »

Could it also be a T5600 model that uses DC instead of Tone? I just got my hands on a T5600 and I am looking for a way to distinguish between the two as well. Also, Dan, do you know what pins I should be connected to in order to pull the ASCII form of MDC1200 from the console to put into a RS232 connection of a computer?


-Carl
---------------------------------------------------------

"Francine, you be very careful out there today, we're at terror alert orange! Which means something might go down somewhere in someway in some point in time, SO LOOK SHARP!"
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xmo
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Post by xmo »

The T5600 series came in several variations - the model numbers help ID the capabilities of a particular unit.

T5600 would be your basic tone remote.
T5601 would be your basic DC remote.
T5620 would be the top of the line with all the MDC bells & whistles, printer port, etc.
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cfacer
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Joined: Thu Jul 28, 2005 10:50 am

Post by cfacer »

Oh Rats!

I have the T5600A model, which has the tiny display on it. Someone told me that it would actually decode MDC, but looking at the last post I am starting to have my doubts. Do you know if the T5600 or T5600A versions will actually spit out the MDC in ASCII format somehow? Any help would be greatly appreciated. Thanks again!

-Carl
---------------------------------------------------------

"Francine, you be very careful out there today, we're at terror alert orange! Which means something might go down somewhere in someway in some point in time, SO LOOK SHARP!"
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