XPR8400 / XPR6550 TX/RX different

[law429]

Hello Trbo experts. I have a questions, its long and complicated, but I am hoping there is some sort of solution out there.

• I have 3 sites that I want to use. (IPSC would be ideal but there are 2 hang ups.
• 2 of the repeaters are not connected via Ethernet, they are just to broadcast location data to the 3rd repeater to then send to control radios for processing.
• I need to scan an analog channel for talk purposes as this is what the area we are using the radio in requires

So my question is this, can I program a portable/mobile radio to (freq for example): RX 153.000 TX 158.000 and program the repeater to: RX 158.000 TX 170.000 and the control radio to RX Only: 170.000

This would enable me to have a portable radio offload GPS data to multiple repeaters with the same RX freq, but then the repeater can repeat the GPS data to a control radio with a different RX as a receive only, this will enable me to have multiple control radios for multiple repeaters, I have a filter system to handle this. I just can seem to cheat the CPS system to make it work? Is it possible?

Do I need to use 2 channels in the repeater?

Is this similar to inventing a rocket ship?

Thanks
Lindsay

 

[nje431]

The problem is the portable frequncies. TRBO is a 2 slot system. In duplex mode the portable has to sync its timing to the repeater. If it can't hear the repeater, it can't sync, and will refuse to transmit.

 

[rainbowpenguin]

TRBO radios won't spontaneously send GPS data on their own. It has to at least be initially requested from the radio by the ARS/LRRP server software (connected to the control radio). I think the MotoTRBO system planner (available on this site) will be of use.

What is cell phone coverage like at the repeater sites? There are a few low-cost/free cell based internet providers out there, which would allow for IPSC.

 

[com501]

You are trying to build a diesel engine with steam power knowledge. Start with the system planner and the basics before you do anything else and learn how the pieces work.

 

[zap]

If you have LOS between your sites you could also look at running a Ubiquiti or Cambium 5 GHz radio (or similar) to tie in your unconnected repeater.