MotoTRBO question

[riggelpop]

We are running a network that uses several different channels, however safety is involved and we want one channel that will broadcast to all the channels a warning/safety message. The channels are all programmed to monitor or "scan" that channel but is there a way to have the safety channel interrupt any activity going on and make sure every channel hears that one?

We are running on MotoTRBO XPR 6550 in the Digital setting.

 

[WA0CBW]

The answer depends on what kind of system you are using. If you are using MotoTrbo in the digital mode are you using a single frequency with two time slots and multiple talk groups? Or are you using multiple frequencies with multiple time slots? Or are you using multiple repeaters linked together? Or are you using MotoTrbo in the analog mode? Describe the system you are using and then we can determine if what you want can be done. In most cases however if someone is talking when the emergency call goes out they will miss the call (the radios can't listen and talk at the same time). In other cases active talkgroups won't hear the emergency call.
BB

 

[riggelpop]

Correct we are in the digital mode with a single frequency, and I am essentially asking if one channel can interrupt multiple channels similar to how one radio can interrupt another radio on the same channel.

 

[SCPD]

I also would like to see how this is done.
We have a vendor using this as a selling point to sell us a system:
"In an emergency, an alert can go over all radios in the plant"
We have thousands of handhelds on 50 different frequencies.

 

[WA0CBW]

Wyandotte: I sent you a PM.
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[WA0CBW]

Riggelpop:
Terminology might help clear this up. With a single frequency you have two time slots. That means you can have two conversations going at once on your single frequency. You can have several "talkgroups" such as security or sales or maintenance but since with a single frequency there are only two talk paths then only two talk groups can be talking at the same time. When a third talkgroup starts to talk they will get a busy signal until one of the other two groups stops. A talk group can be set up as an "all call" meaning it goes out to all talkgroups. Depending on how your system access levels are set up the all call can't interrupt someone talking because the radios are simplex, they can not listen and talk at the same time. Again depending on the access levels a talkgroup in progress cannot be interrupted.
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[JRayfield]

Actually, Transmit Interrupt can be used on simplex systems, conventional repeater (local and IP Site Connect wide-area), and Capacity Plus and Linked Capacity Plus trunked systems.

MOTOTRBO has come a LONG way since it's introduction just 5 years ago.

John Rayfield, Jr. CETma
W0PM