P-25 Control Channel on 408.0000 in Des Moines Area

Tim

Member
Feed Provider
Joined
Dec 19, 2002
Messages
489
Location
Milwaukee, Wi
Greetings,

I'm staying in downtown Des Moines for a few days and I am picking up a P-25 control channel on 408.0000. I am on the 6th floor of a hotel in a room that faces north. I don't see anything in the RR database regarding it.
Uni-Trunker is showing some activity on the system, but no voice traffic in the last minutes. I have seen 3 different radios affiliate with TG 3. The WACN IS 00001 AND SYS-ID IS 001 (Obviously no help). It does show that it is Manufactured by Motorola and is TDMA capable.

Tim
 

RaleighGuy

Member
Premium Subscriber
Joined
Jul 15, 2014
Messages
14,655
Location
Raleigh, NC
Greetings,

I'm staying in downtown Des Moines for a few days and I am picking up a P-25 control channel on 408.0000. I am on the 6th floor of a hotel in a room that faces north. I don't see anything in the RR database regarding it.
Uni-Trunker is showing some activity on the system, but no voice traffic in the last minutes. I have seen 3 different radios affiliate with TG 3. The WACN IS 00001 AND SYS-ID IS 001 (Obviously no help). It does show that it is Manufactured by Motorola and is TDMA capable.

Tim

Have you seen a NAC? Or maybe Radio IDs?
 

Tim

Member
Feed Provider
Joined
Dec 19, 2002
Messages
489
Location
Milwaukee, Wi
This is what I've seen so far with UT parked on 408.0000MHz for last two hours. SDS-100 shows Nac 0000, DSD-Plus occasionally shows Nac:555 but that seems to be more of bad readding.

Tim
 

Attachments

  • Screenshot (3).png
    Screenshot (3).png
    141.3 KB · Views: 25

Tim

Member
Feed Provider
Joined
Dec 19, 2002
Messages
489
Location
Milwaukee, Wi
Screenshot (4).png

Here is the information page. I was going to let UT listen to either ISICS or Sara tomorrow while I'm gone but I guess I'll let it sit on this system.

Tim
 

Tim

Member
Feed Provider
Joined
Dec 19, 2002
Messages
489
Location
Milwaukee, Wi
All of a sudden around 1030pm there was a bunch of traffic on TG 2. All encrypted.

Frequencies noted in the system (Thusfar):

406.1125 Voice
406.7750 Voice
407.8375 Voice
408.0000 Control Channel

Radio ID's that were talking on TG 2:

117
122

I was reading about a new federal building that was to open up in 2024 in Des Moines, could this be who the owner/user is?

Tim
 

ecps92

Member
Joined
Jul 8, 2002
Messages
14,872
Location
Taxachusetts
Greetings,

I'm staying in downtown Des Moines for a few days and I am picking up a P-25 control channel on 408.0000. I am on the 6th floor of a hotel in a room that faces north. I don't see anything in the RR database regarding it.
Uni-Trunker is showing some activity on the system, but no voice traffic in the last minutes. I have seen 3 different radios affiliate with TG 3. The WACN IS 00001 AND SYS-ID IS 001 (Obviously no help). It does show that it is Manufactured by Motorola and is TDMA capable.

Tim
That freq was (Back when it was Analog) the USPS Sorting Facility.

I would venture they went P25, altho most have gone DMR across the country and not P25 for Non LE Operations
What type of Traffic are you hearing ??? is it CLR or ENC ???

Edit - since two of the Freqs you reported were prior VA Hospital conventional frequencies, I'm more inclined to think the VA now
 
Last edited:

dave3825

* * * * * * * * * * * *
Premium Subscriber
Joined
Feb 17, 2003
Messages
8,597
Location
Suffolk County NY
What type of Traffic are you hearing ??? is it CLR or ENC ???
He said enc and with 3 digit rids.

Frequencies noted in the system (Thusfar):

406.1125 Voice
406.7750 Voice
407.8375 Voice
408.0000 Control Channel

Are you in range of the VA @n0esc inked above?

And usually DSDPlus will list (cc scc) alternate control channels. Can you open the DSDPlus.p25data file and post the relevant info or take a screenshot?

It could look something like this

Site: 1.127 NAC=4F7 ; Plainview NY

Channel 8-685: 170.5625 CC SCC
Channel 8-713: 170.9125 CC SCC
Channel 8-717: 170.9625 CC SCC DATA
Channel 8-755: 171.4375 DATA
Channel 9-1510: 171.4375-1 VOICE
Channel 9-1511: 171.4375-2 VOICE
 

Tim

Member
Feed Provider
Joined
Dec 19, 2002
Messages
489
Location
Milwaukee, Wi
I can take a screenshot when I get back to the hotel. I let DSD-Plus do its thing while I am out and about. Hopefully the CC doesn't change today :)


Tim
 
Top