New United SFO DMR system

[kma371]

Not sure how long it's been active but United is using a new DMR system at SFO, networked with ORD, EWR and IAD. Assuming it's going to replace the old LTR system. It can be found here:

https://www.radioreference.com/apps/db/?sid=8309

Wasn't able to monitor for very long but it is active with talkgroups that I didn't log. If someone wants to try and monitor and submit info that would be great.

 

[marcp90]

United at DEN is currently operating a Motorola Analog System. The frequencies are also licensed for Mototrbo so I'm sure that will become part of this system also in the near future.

 

[LAflyer]

I'll give it a listen next time I am on the ground at SFO.
The former passport system was not much fun to monitor due inability to track talkgroups.

 

[silagi]

As of today (8/2) United at SFO is up and running on the new Mototrbo system

 

[kma371]

As of today (8/2) United at SFO is up and running on the new Mototrbo system

The current LCN's listed are correct, but I would guess we may be missing a system frequency or two. I noted some activity last friday, but not enough to nail down who is using what talkgroups.

 

[Radiobern]

I've been monitoring this system with a Pro-668 with the official upgrade for DMR. So far, I've been able to figure out there's 2 systems in use, both 10 frequencies each, at least based on color code. It seems to be the combination of 2 licenses, WQUS417 and WQXV692. I verified each frequency below for voice activity and it seems to be a fairly active system. I have not analyzed the frequencies with software via my RTL-SDR stick yet to figure out any additional parameters.

Color Code 1:
460.7375
460.7625
460.875
460.8875
461.2
461.475
461.725
461.75
461.85
461.95

Color Code 8:
460.65
460.6875
460.725
460.7875
460.8125
461.4375
461.5125
461.6
461.6875
461.875

Talkgroups heard so far:
736003
736007
736010
736040
736066
736069
736070
736076
736095
736102
736105
736106
736107

 

[vince48]

Thanks Benard, is that in DMR channel order? I too have been monitoring this system for the last two days, but did not get as far as you diid. Great work Sir!

 

[kma371]

If someone can dump those into a 436/536 and analyze the system to get LCN order that would be awesome ��

 

[Radiobern]

No, these are not listed in LCN order. The Pro-668 does a pseudo-trunking and does not require LCN order. If anyone can tell me what software can be used to find LCN order, please me know. I've used software in the past to find LCN order for EDACS systems.

 

[vince48]

Well, they maybe in LCN order, it seems to to be working with my 2 airSpy's and DSDPlus. A freqency lights up and i hear the voices. Although sometimes no voice. I'm not sure if it is a data transmission or i'm missing the voice.
Seems the control channel is a bit waek for me here in the Hayward flatlands

 

[kma371]

Well, they maybe in LCN order, it seems to to be working with my 2 airSpy's and DSDPlus. A freqency lights up and i hear the voices. Although sometimes no voice. I'm not sure if it is a data transmission or i'm missing the voice.
Seems the control channel is a bit waek for me here in the Hayward flatlands

From my notes site 2 is out of order but site 1 may be correct. I don't have all of them. I'll try and head out there this week with those freqs and see if I can figure it out.

Only other way I know how is via DSD