Single Channel Trunk On Conventional Frequencies

[N8IAA]

I own both the 396XT and the HP1.
I know that there was some discussion on using single channel trunk programming quite a while ago.
My question, will the 396XT and HP1 do RID's on conventional P-25 channels in single channel mode? If there is such a thing?
Larry

 

[SOFA_KING]

I own both the 396XT and the HP1.
I know that there was some discussion on using single channel trunk programming quite a while ago.
My question, will the 396XT and HP1 do RID's on conventional P-25 channels in single channel mode? If there is such a thing?
Larry

Yes. Although I don't have a 396XT, I have friends that use P25 One Channel mode to see the Unit ID numbers. I DO have an HP-1 and imported my 536 HPE files, and UID works fine. That saved me from writing all those Systems, Departments and Channels over again for each conventional frequency programmed. This mode also filters out (skips) P25 encryption, which is great! The downside is it scans a bit slower. And besides showing UID and TG, it also shows NAC...Something the X36 units don't show in that mode.

Phil

 

[marksmith]

The 396xt is limited to a total of 500 UID's, frequencies and talkgroups combined per system, but does unit ID's.

The HP1, because of the SD card, has no limits per system on these things.

You can program a text description for each unit ID on these radios, and both radios need to be put in the proper display mode to see these ID's.

PS There is no such thing as single channel trunking, or any other kind of trunking on conventional frequencies. By definition, a trunking system defines a non-conventional frequency usage.

There is something called control channel only trunking, which might be what you are asking, and both of these radios do that.

Mark
WS1095/536/436/996P2/HP1e/HP2e/996XT/325P2/396XT/PRO668/PSR800/PRO652

 

[marksmith]

There is also single channel P25 which include ID and talkgroup. This is not conventional frequency though. Typically you can monitor as a non trunked frequency with NAC code. But if you want to see ID and talkgroup info, you need to enter as a single channel trunked system. I think these radios can do that. I have not done on these but have on the hp2

Mark
WS1095/536/436/996P2/HP1e/HP2e/996XT/325P2/396XT/PRO668/PSR800/PRO652

 

[N8IAA]

I've looked through the easier to read manual, and can't find how to program single channel P-25. Is it possible using FreeScan?
Larry

 

[MarkWestin]

All you need to do is create a new system and choose type P25F as opposed to P25S for a "normal" P25 system.

You can even have a multiple frequency single frequency system by assigning each frequency to a different site. All the sites can share common group for talk groups.

Mark

 

[N8IAA]

All you need to do is create a new system and choose type P25F as opposed to P25S for a "normal" P25 system.

You can even have a multiple frequency single frequency system by assigning each frequency to a different site. All the sites can share common group for talk groups.

Mark

Mark, so, this will work for a conventional P-25 frequency? It seems that what you are saying is for a trunk system. Or, am I out thinking myself?
Larry

 

[kruser]

Mark, so, this will work for a conventional P-25 frequency? It seems that what you are saying is for a trunk system. Or, am I out thinking myself?
Larry

I think it will.

I recall trying to see the RIDs on my 3 and 996XTs on single channel P25 signals that were not considered single channel trunked systems.

I set one up as a single channel trunked system and then the radio did display the RID but for some reason, I think doing that messed something else up but I can't recall what that was. I just recall needing to program the frequency as a conventional digital channel and also as a single channel P25 trunk system.

It could have had something to do with talkgroup display where the radio would not display the talkgroup when programmed as a conventional digital frequency but would when setup as a single channel trunked system.

Can't try it anymore though as the entire county went to a countywide trunked system.
And the system I messed with this on was odd anyway. They used analog from dispatch to car and the cars replied in P25 back to dispatch.
One really needed two radios for this system. One set to analog with the correct PL tone that thankfully they broadcast along with the analog signal and then another radio set to digital only so it did not open its audio path when the analog signal came over the air.
You could do it with a single radio but the delay times needed by the radio to determine analog or digital often caused you to miss parts of the transmission.

This was a system used by Crestwood PD in St Louis County, MO.
I never did figure out why they set it up like that but possibly due to lack of funding to change over the dispatch console. They had recently lost an entire major shopping mall which probably provided a lot of the cities sales tax income. The whole city darn near went broke. I grew up there some 45+ years ago and it was always a nice and thriving city back then!
They survived though and were the very first official user of the new P25 countywide system.

 

[MarkWestin]

In Maine we have the relatively new State system in use statewide. In my area I can easily receive three trunked sites and two conventional sites. Each of the conventional sites (that I can pick up) is using two frequencies. The conventional sites are in remote off the grid areas and are powered by solar panels. They only transmit when there is traffic in order to same battery power. If monitored as a single frequency P25 system, you can see which talk groups and UIDs are in use. The only problem is that you can't see the NAC that is in use. A conventional (not P25) system will show the NAC and you can still hear everything that is happening. In the central and southern part of the state there are a few cities such as Augusta that are using P25 audio on their systems. These can also be monitored as a single frequency P25 system and you can see the UIDs.

Mark