Maryland FIRST 700mhz TRS

[FiveAlarmPhotography]

O''Malley's Proposed 2014 Budget

From the article: "41.7 million for the continued development and implementation of the Maryland Public Safety Communications System to provide a wireless, interoperable radio system for law enforcement and public safety agencies, as well as first responders.; "

O'Malley proposes 48 percent increase to police aid - CapitalGazette.com: General Assembly

[dpcain]

Originally Posted by troymail

It's funny how the talkgroups on the Baltimore site (tunnel, key, MSP Highway) got really, really quiet as the Ravens game started.... but then got pretty active pretty quickly after it was over.

I guess they could have been laying low waiting for movement following the game....

That's when you see the OTHER radio in the vehicle getting used more heavily..

[troymail]

Originally Posted by dpcain

Note for anybody living on the eastern shore- had a sharp RSSI spike on an existing FiRST frequency around Salisbury (50 @ ESCJA) and again in Ocean City at 90 inbound and coastal highway. Did not pick up the 90 spike outbound an hour later, but did pick up the same one in Salisbury. I have a PSR800 and didn't have the freqs in-hand (I was mobile) or I would have tried to figure out which one it was- it wasn't a control channel, but was near full RSSI both times. So, it appears unless my scanner was talking to itself, they've installed something using a non-control channel that has a coexisting frequency with another site (though I don't know which).

If anybody lives around these areas, heads up, you might hear or see some stuff happening around now with a good antenna and a good nose.

NOTE: I don't know if the 800 won't show RSSI belonging to things not identifying as sys 4A2 or with NAC 4A1, but I can confirm that it's not a freq from DELWIN- none of the Sussex freqs from that system overlap with FiRST freqs.

I'm just back from a trip to the Eastern Shore - down as far as Berlin (Rt 50 and Rt 346)... I didn't detect a peep the entire trip from Wye Mills down - not of the freqs listed in CAPRAD for Maryland FiRST or a search across 769-775 Mhz....

[troymail]

New data is beginning to appear in the fcc.gov ULS for Maryland FiRST. Most of what is showing there matches what is listed in CAPRAD with a couple of exceptions:

- the Caroline County frequencies don't match....
- Worcester County is not fully showing in fcc.gov yet -- only the Ocean City set/half so far


DORCHESTER COUNTY
=================
ULS License - Trunked Public Safety 700 MHz License - WQQJ424 - STATE OF MARYLAND - DEPARTMENT OF INFORMATION TECHNOLOGY

WQQJ424

300 FEET NORTH OF SMITHVILLE ROAD IN DORCHESTER COUNTY
TAYLORS ISLAND, MD DORCHESTER County

38-24-47.6 N, 076-13-57.2 W

770.84375
771.21875
771.51875
771.84375
772.08125
772.69375


ULS License - Trunked Public Safety 700 MHz License - WQQJ421 - STATE OF MARYLAND, DEPARTMENT OF INFORMATION TECHNOLOGY - Locations Summary

WQQJ421

3 addt'l locations in Dorchester

770.03125
774.19375


WICOMICO COUNTY
===============
ULS License - Trunked Public Safety 700 MHz License - WQQJ423 - STATE OF MARYLAND - DEPARTMENT OF INFORMATION TECHNOLOGY - Locations Summary

6 fixed sites in Wicomico

WQQJ423

769.10625
769.56875
770.10625
770.75625
772.30625
774.71875


WORCESTER COUNTY (Ocean City)
=============================
ULS License - Trunked Public Safety 700 MHz License - WQQI659 - STATE OF MARYLAND - DEPARTMENT OF INFORMATION TECHNOLOGY - Locations Summary

6501 Costal Hwy, Ocean City

WQQI659

769.50625
770.58125
771.23125
771.85625
774.15625
774.43125



CAROLINE COUNTY
===============
ULS License - Trunked Public Safety 700 MHz License - WQQI649 - MARYLAND STATE GOVERNMENT - DOIT - Locations Summary

WQQI649

208 UNIVERSITY AVENUE
FEDERALSBURG, MD CAROLINE County

770.30625
771.01875
771.56875
772.00625
772.39375
772.95625

[dpcain]

Found those too. No infrastructure online- I was in OC this weekend and left my radio dumping to Unitrunker while I was mobile the whole way with those sites added in to FiRST, not a peep yet (to steal the word).

[troymail]

SHA/MDOT units up on TGID 8114 this morning right at 0500 which they last week identified as MD TAC 1.

Believe this is for today's events in DC - it'll be curious to see how it's used since the system (as far as we know) isn't built out down that way...

EDIT @ 0610 - reference to "Command Post College Park Barrack" as units check in....(could be a patch)

[troymail]

TG 8114 so far little activity after several units checked in between 0500-0630

SOC (State Operations Center - Hanover?)
SHA units
MDOT units
MSP Truck 1
MSP College Park Barrack
MdTA SOD1

[troymail]

Not much activity on 8114 today but I guess I expected that. More activity on 8561 on the AA Site but I have to say I'm pretty irritated/unhappy with the reception I'm getting on the AA site over the past few days including today (and I'm sitting in the middle of AA County -- but that may be the problem). Lighter amount of (non-standard) activity on the Baltimore site today and I'm receiving that perfectly (probably because I'm only picking up a single transmitter site in south Baltimore).

[WJL]

This system has been coming on line for about 2 months now, Can only be recieved with the PSR800 using the Version 1.8 firmware and 1.3 DSP upgrade, I travel for work all around the state and have recieved strong voice all up and down I95 from Deleware to Capital beltway, and I-70 up to Frederick.
Radioreference database lists the talkgroups currently online with new ones added every few days it seems.
Currently mostly MTA Port police, JFk Highway MSP and the Toll bridges and tunnels Police.
kent County has a group of talkgroups too, I have heard a little traffic on them but not much.

Bill

[boatbod]

Originally Posted by troymail

Not much activity on 8114 today but I guess I expected that. More activity on 8561 on the AA Site but I have to say I'm pretty irritated/unhappy with the reception I'm getting on the AA site over the past few days including today (and I'm sitting in the middle of AA County -- but that may be the problem). Lighter amount of (non-standard) activity on the Baltimore site today and I'm receiving that perfectly (probably because I'm only picking up a single transmitter site in south Baltimore).

Picked up a couple of hits on 8114 today around 18:08. Nothing I could readily identify:- one unit said something about the "SOC" and another responded.

Prior to that the only thing I've seen recorded was one hit on 7171 from 1/19 around 18:33. Again hard to identify and agency, but the dispatcher did ask "SOD 13" (?) to "check their display", which typically seems to mean someone accidentally pressed their emergency button.

Note: traffic was heard/recorded in Oxford from the Queen Anne site.

[dpcain]

71xx is typically MdTA, and SOD 13 is an MdTA Special Operations car. Not that I've seen anything as high in that range as 7171..

[troymail]

I see many hits on IDs where I think the units are on the wrong talkgroup -- just need to figure out what those talkgroups are.

A couple of recent hits on TGID 8564 lead me to believe this TG belongs to MIEMSS....

[FiveAlarmPhotography]

There was some activity on 1/21 on Talkgroup 7133. Seemed like a police talkgroup maybe a talk-around or tac channel.

[dpcain]

Based on a powerpoint I can't get to anymore, I believe that's the tactical channel of the Aggressive Driving Unit (MDTAP ADU TAC). Haven't submitted it yet because I haven't confirmed that as its use- haven't heard any unit IDs there yet..

[troymail]

Originally Posted by dpcain

Based on a powerpoint I can't get to anymore, I believe that's the tactical channel of the Aggressive Driving Unit (MDTAP ADU TAC). Haven't submitted it yet because I haven't confirmed that as its use- haven't heard any unit IDs there yet..

Not sure what the TG name is but it sounded like units today were doing tag scans (suspensions, etc.). Activity was 0930-1230. White Marsh and (exit?) 11B was mentioned ; also CAPWIN (Capital Wireless Information Net, University of Maryland)

There were two units - a monitor unit and a chase unit - IDs 2116933 (Wiki says "CV7") and 2117251 (Wiki says "CV8") - but they weren't focused on commercial vehicles.

Definitely MdTA (probably "Port") units.

Other radio IDs seen on this TG in the past include:
2117021
2116990 (wiki: SOD8)
2116893

Some other early conversations caught were between HQ40 (or 44) and SOD1.... other conversations mentioned "SOD OPS" (the possible TG name) and that SOD "CRU" didn't have a TAC channel ---

Believe this TG was used during the investigation of the head-on crash on I-695 (in Curtis Bay) around Thanksgiving.

[troymail]

Units using TGID 8115 this morning - "Command Post" and 940x unit ids patrolling the Anne Arundel area (Rt 2, Rt 50, I-97) near the Polar Bear Plunge - sounds like traffic units (SHA? MDOT?).

[troymail]

Units on 8115 (referred to as "CHART units") recalled back to the command bus around 1550 on Saturday and activity ended.

CHART On The Web

[troymail]

Seeing some activity on yet another TGID (first seen 1/17) -- 8120 - with radio IDs 216xxxx ... I don't recall seeing that range until today.

[dpcain]

Hmmm, that's a weird number set: I've logged USNA PD units on the JNCR system as 215xxxx and USNA Communications in 217xxxx, so that's right in between the 7 digit ID sets I've seen on there.

[CqDx]

I could have been mistaken but pretty dead certain that I saw a list of radio ID ranges to be used statewide with county/city/jurisdictions in one of those publicly available Maryland SCIP documents many months ago. If anyone came across it that would be a great help in identifying some of the talkgroup usages.