TRX-2

[midnightcaller]

I'm thinking of getting the TRX-2 and the 1040 handheld scanner Is the 1080 a updated version of the 1040? and I know that they have DMR on them

My question is when I put a DMR system in the scanner do I have to know what the color codes and time slots are, or will it do it automatically?

Thanks
Midnightcaller

 

[hiegtx]

I'm thinking of getting the TRX-2 and the 1040 handheld scanner Is the 1080 a updated version of the 1040? and I know that they have DMR on them

The WS-1040 is a handheld scanner, produced by Whistler, but is basically the same design & capability as the original GRE PSR-500. The 1040 does not handle DMR nor P25 Phase II systems.

The WS-1080 is a hand-held database scanner. It is capable of receiving P25 Phase II as well as DMR. The later model WS-1088 is basically the same scanner, but it does have a keypad. It also is capable of P25 Phase II as well as DMR reception.

The TRX-2 is a desk/mobile database scanner. In addition to DMR and P25 Phase II, it also can receive NXDN systems. It does have a keypad..

While the Whistler scanners, including the WS-1080, WS-1088, & TRX-2 models, can receive DMR systems. they do not trunk track DMR systems. They can be programmed to receive DMR, the TRX-2 also being capable of receiving NXDN, but will not actually follow a conversation on a given talkgroup.

My question is when I put a DMR system in the scanner do I have to know what the color codes and time slots are, or will it do it automatically?

You can program the time slots & color codes (for known DMR channels), or set those fields as 'any' (or search) and let the scanner find what values are being used.

 

[Ubbe]

While the Whistler scanners, including the WS-1080, WS-1088, & TRX-2 models, can receive DMR systems. they do not trunk track DMR systems.....
but will not actually follow a conversation on a given talkgroup.

They follow TG's just fine using its voice channel tracking, sometimes working better than what Unidens control channel trunk tracking do, at least until Uniden fix their DMR decoder.

It searches thru all voice channels to hunt for any TG's it is supposed to monitor and if that TG would move from one voice channel and slot to another it scans thru the voice channels to find it again.

As it has to decode the data from a voice channel to see if any of the two slots have the wanted TG it will take some time, maybe 150-200mS for each channel that has a conversation. If the voice channel are idle at that time it takes some 60mS to find out and goes to next voice channel. If the channel are not transmitting any data it scans past it in normal scanrate, 15mS.

For a very busy DMR system with many channels you can estimate how long time it will take to check all voice channels and will give a delay until it finds the correct frequency. If it was the last frequency checked in that site you could miss 2 sec of a conversation. But at the other hand a Uniden scanner could miss that conversation completely. Fortunately a DMR system usually use the same frequency and slot during the whole conversation and doesn't have much frequency hopping being done as can be seen in other system types.

/Ubbe