LDS System 3D38

[gldavis]

Due to Conference weekend, I have Trunker locked on the LDS system. Lots of activity. most of it crowd control. Their radio procedures make it difficult to determine TG identities. A lot of names, but not many channel ID's.
So far, this is what I have determined:

TG 176 as Media Maint/Control
TG 18160 as Control Services Channel ( this is what they IDed as)
TG 20176 as Grounds Maintenance
TG 32720 as Visitor Center Guides
TG 16192 as Custodial Servcies

An interesting thing I've noticed here, is that some of the Talk Groups, I can not receive at my location. I can see them on the Control Channel, but their audio signal is to weak for me to receive. It is like some of the TG's are going thru repeaters, and others are not. Two different TG's on the same freq, I can hear one of them but not anouther. Example, I can hear TG 176 and 16192 on all the freqs, but TG 32720 I can hear some of the times, and only if I hold my antenna just right.

 

[Mick]

Thanks for posting, interesting info! I'm watching conference at http://www.byu.tv/# this afternoon. I've always wondered what there is to hear behind the scenes.

 

[brandon]

Last time I monitored the LDS system lots of i-calls were used too. Is this still the case?
Also the security used encryption 100% of the time.

 

[gldavis]

There is a lot of encryption. I'm assuming it is Security. So far, today, I've gotten 9 different TG's that are using Voice Inversion.

As for I-calls, there have been a few. A couple of phone patch's and the rest have been routine work talk.

it is fun to hear them talking on the radio and hearing the singing in their backgound, while hearing it on my TV at the same time. I really miss being able to do that when something happens in other parts of the country.

 

[bneilson]

So gldavis are you going to go ahead and throw those in the DB?

 

[gldavis]

The weekend, and earlier listening has given me a list of over thirty active TG's. About ten are positivly ID'ed, five more are maybe ID'ed, and the rest are who-knows. I have been monitoring this system off and on over the past year, and the impression I got this weekend is that a lot of the TG's were pressed into "other than normal" service for crowd control. Example would be several TG's that in the past, were warehouse use, were this weekend, being used for crowd control. I also have several TG's that appear to be Visitor Center use, but I haven't figured out the breakout of them. Are they indoor/outdoor, upstairs/downstairs, ect. I have a lot of partial info, but not very much concrete.
Most of the comms are by persons name, and not by any sort of organizational ID.

I will look at what I have and see if I can update the DB with something helpful.

 

[BJ_NORTON]

An interesting thing I've noticed here, is that some of the Talk Groups, I can not receive at my location. I can see them on the Control Channel, but their audio signal is too weak for me to receive. It is like some of the TG's are going thru repeaters, and others are not. Two different TG's on the same freq, I can hear one of them but not another. Example, I can hear TG 176 and 16192 on all the freqs, but TG 32720 I can hear some of the times, and only if I hold my antenna just right.

I have noticed with an EDACS system I monitor here in Las Vegas that to hear one of the channels I either have to be touching the antenna, or have the radio laying on its back elevated about 20 degrees. All Talkgroups are affected on just one frequency so I'm sure its some sort of tx or antenna problem. That frequency had previously been used as a CC for over a year so maybe that had something to do with it.

On Saturday I went hiking in the mountains. I took along a portable AM radio to listen to the Saturday afternoon session. The radio was strapped to my backpack, and I had to be facing either North or South to get anything intelligible out of the radio; kinda hard to do when your climbing up a ridge that runs east and west!

 

[enosjones]

When I went to SLC Last year I had 2 LDS systems Programed ito my scanner. The one thats probably this one I only got a few that matched TG's with what was listed in the DB and other sources at the time. The rest are unknowns. I hate to list them here but for right now will list the ones i got. Not sure on the accuracy of these.

BTW I only picked up a couple TG that matched with the list below that gldavis posted. the rest was unknowns.

The ones I have listed and tagged are:

32720 Temple Square Tour Guides
20176 Grounds Maintainence
1312 Warehouse
1424 Deseret Industries
32688 Temple Square Talk Group

 

[kd7rto]

2 LDS systems? FYI 4E3C is misidentified in the database, that system is actually Questar Infocom on Promontory Pt.

One interesting fact about 3D38 is that only two of the channels are digital capable. In the past, when they were simultaneously busy, bits and pieces from the security talkgroups could be heard in the clear on the other channels. More recently, I believe Motorola engineers have addressed this weakness.

I think a tour of the security office would be very interesting. Of course they would never allow it.

 

[gldavis]

With the new Temple open to visitors I decided to take a listen to the LDS system 3D38. I found TG 33008 being used for the Temple Open House.

 

[bneilson]

Hey gldavis, you might also want to monitor 464.81250.

It was licensed back in April and listed an address of the new South Jordan Temple in Daybreak. I live a few blocks from there and have not copied anything on that frequency as of yet. Also from that location I get less then a great copy on the 3D38 system. I am surprised that it is working from Draper. I assume that is the temple you are talking about....

 

[gldavis]

I do have 464.8125 programmed in, nothing heard on it so far. Yes, it is the S Jordan Temple that I am hearing. Mostly crowd control traffic.

 

[Utah_Viper]

I do have 464.8125 programmed in, nothing heard on it so far. Yes, it is the S Jordan Temple that I am hearing. Mostly crowd control traffic.

I think that would be the Draper Temple. That is the one hosting tours at this time. The So. Jordon one is not quite ready yet.

 

[gldavis]

Draper it is.

 

[ke7ovx]

ok, two things here.

1. The SO Jordan Temple you're referring to, is that the Oquirrh Temple in Daybreak?

2. What is the system 3D38. What does that mean?

Thanks guys and 73

Dan - ke7ovx

 

[qlajlu]

2. What is the system 3D38. What does that mean?

Welcome into the sunlight,​

ke7ovx!​

You have been hanging out in the shadows for far too long. I'm glad you have joined us in the open finally.

That would be one of the LDS Church's trunked systems.

It can be found by clicking on Database (top blue bar on any page) > click on Utah on the map > click on Trunking tab. There are two LDS trunked systems shown, system 3D38 is the first one listed; system 4E3C is the second one. It is simply a Hexadecimal identifier which every system has.

 

[kd7rto]

There are two LDS trunked systems shown, system 3D38 is the first one listed; system 4E3C is the second one. It is simply a Hexadecimal identifier which every system has.

Actually 4E3C is Questar Infocom Promontory Pt, WPHS523. It is not, nor has it ever been, owned by the LDS. It's been listed that way for years. I'm pretty sure the last time I tried to get the erroneously listed systems corrected was before Tim took over, so I need to resubmit.

 

[theaton]

Actually 4E3C is Questar Infocom Promontory Pt, WPHS523. It is not, nor has it ever been, owned by the LDS. It's been listed that way for years. I'm pretty sure the last time I tried to get the erroneously listed systems corrected was before Tim took over, so I need to resubmit.

Happy to oblige. I always wondered what that seemingly unused system was. I thought it might be an old system that should be deleted. I made the change but there may be an issue with the frequencies. Those listed for WPHS523 end in .3375 whereas most in the DB end in .8375. Should those be changed to .3375?

-Tim

 

[kd7rto]

Happy to oblige. I always wondered what that seemingly unused system was. I thought it might be an old system that should be deleted. I made the change but there may be an issue with the frequencies. Those listed for WPHS523 end in .3375 whereas most in the DB end in .8375. Should those be changed to .3375?

-Tim

I didn't see any .8375 frequencies in use last August:

Questar - Promontory
MAP=??????2?
OPTIONS=nVDf
PLAN=8
DESCR=Type II 105.88 Hz
THRESHOLD=99
DISPOSITION=abcbdbebfulxnbpbsr
c 855.6625,ba,ffff,0
c v856.3375,d5,ffff,2073
v857.3375,fd,ffff,2157
v858.3375,125,ffff,52e2
dv859.3375,14d,ffff,34d6
dv860.3375,175,ffff,2ad9

 

[theaton]

I didn't see any .8375 frequencies in use last August:

Questar - Promontory
MAP=??????2?
OPTIONS=nVDf
PLAN=8
DESCR=Type II 105.88 Hz
THRESHOLD=99
DISPOSITION=abcbdbebfulxnbpbsr
c 855.6625,ba,ffff,0
c v856.3375,d5,ffff,2073
v857.3375,fd,ffff,2157
v858.3375,125,ffff,52e2
dv859.3375,14d,ffff,34d6
dv860.3375,175,ffff,2ad9

Okay good, those frequencies match the license. I was a little confused on "c" vs. "d" -- which are the control channels?

Next question: are the LDS TGs listed for the system valid, or should they be deleted?

Sorry for the double listing of System ID. There's currently a bug and I can't delete the old one.

-Tim