TLC Talkgroups DOITT P25 System

4-crime

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Sep 21, 2007
Messages
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Location
NY, NY
I’ve been monitoring the TLC talkgroups for the past few days and haven’t heard a peep. Anyone have any info on them? Anyone else hearing anything?
 

n2nov

NYC/NNJ DB Admin
Database Admin
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Messages
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Location
Staten Island, NYC
I see talkgroups spread across the old 800 system and the new 700/P25 system. Maybe the transition is complete!

800​
9632​
A​
TLC​
Taxi and Limousine Commission​
Transportation​
Taxi and Limousine Commission​
800​
9664​
A​
TLC​
Taxi and Limousine Commission​
Transportation​
Taxi and Limousine Commission​
800​
9696​
A​
TLC​
Taxi and Limousine Commission​
Transportation​
Taxi and Limousine Commission​
800​
9728​
A​
TLC​
Taxi and Limousine Commission​
Transportation​
Taxi and Limousine Commission​
800​
33168​
D​
TLC Ch 4​
Channel 4​
Law Tac​
Taxi and Limousine Commission​
700​
2063​
D​
TLC Ch A​
Channel A​
Law Dispatch​
Taxi and Limousine Commission​
800​
33008​
D​
TLC Ch A​
Channel A​
Law Dispatch​
Taxi and Limousine Commission​
TG 2063 ON 700​
700​
2064​
D​
TLC Ch B​
Channel B​
Law Dispatch​
Taxi and Limousine Commission​
800​
33024​
D​
TLC Ch B​
Channel B​
Law Dispatch​
Taxi and Limousine Commission​
TG 2064 ON 700​
700​
2065​
D​
TLC Ch C​
Channel C​
Law Tac​
Taxi and Limousine Commission​
800​
33040​
D​
TLC Ch C​
Channel C​
Law Tac​
Taxi and Limousine Commission​
TG 2065 ON 700​
700​
2066​
D​
TLC Ch D​
Channel D​
Law Tac​
Taxi and Limousine Commission​
800​
33056​
D​
TLC Ch D​
Channel D​
Law Tac​
Taxi and Limousine Commission​
TG 2066 ON 700​
800​
33152​
D​
TLC Ch J​
Channel J​
Law Tac​
Taxi and Limousine Commission​
800​
33200​
D​
TLC Ch M​
Channel M​
Law Tac​
Taxi and Limousine Commission​
800​
9680​
A​
TLC Enforce​
Enforcement Common​
Law Dispatch​
Taxi and Limousine Commission​
800​
9648​
A​
TLC Enforce​
For Hire Cars Enforcement​
Law Dispatch​
Taxi and Limousine Commission​
700​
2074​
D​
TLC Fleet​
Fleet Operations​
Law Tac​
Taxi and Limousine Commission​
800​
33184​
D​
TLC Fleet​
Fleet Operations​
Law Tac​
Taxi and Limousine Commission​
TG 2074 ON 700​
800​
9744​
A​
TLC Inspectr​
Inspector General​
Law Dispatch​
Taxi and Limousine Commission​
800​
9616​
A​
TLC Medlln​
Medallion Cab Enforcement​
Law Dispatch​
Taxi and Limousine Commission​
700​
3051​
D​
TLC Special OpsA​
Special Ops A​
Law Tac​
Taxi and Limousine Commission​
700​
3052​
D​
TLC Special OpsB​
Special Ops B​
Law Tac​
Taxi and Limousine Commission​
800​
9712​
A​
TLC Supervsr​
Supervisors​
Law Dispatch​
Taxi and Limousine Commission​
700​
2073​
D​
TLC Woodside​
Woodside Inspection Facility​
Law Tac​
Taxi and Limousine Commission​
 

mikeybus44

Member
Premium Subscriber
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Sep 24, 2003
Messages
57
Location
Staten Island, NY
I've heard nothing either...

on a side note ... I work for Sanitation and they just moved us to the P25 on July 14th and the consensus is that it needs work. I have answered transmissions and my reply was not received on the other end - it's garbled and unreadable - whether in the car, on the street or in a building.
The UHF worked just fine.
 

4-crime

Member
Joined
Sep 21, 2007
Messages
267
Location
NY, NY
I've heard nothing either...

on a side note ... I work for Sanitation and they just moved us to the P25 on July 14th and the consensus is that it needs work. I have answered transmissions and my reply was not received on the other end - it's garbled and unreadable - whether in the car, on the street or in a building.
The UHF worked just fine.
What model radio are you guys using in sanitation?
 

GTR8000

NYS Database Guy
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The UHF worked just fine.
You're still on UHF T-Band, just a different system. Same frequency range of 482-483; they took channels from the SmartZone system and moved them over to the ASTRO 25 system.

On that note, it's worth pointing out that the ASTRO 25 (P25) system 3A8 is comprised of two simulcast cells: Site 30 on UHF T-Band 482-483 MHz, and Site 60 a mixture of 700 and 800 MHz frequencies. Referring to the P25 system as "the 700 system" is no longer accurate, as Site 60 is no longer exclusively 700 MHz, and over time more 800 MHz frequencies from the SmartZone system will be moved to that cell. While both cells are part of the same system and therefore talkgroups and radios could theoretically operate across bands seamlessly, most talkgroups are probably restricted to one cell (frequency band) or the other at this point.

I think what I'll do is make notes in each talkgroup category pointing out which cell is used by that agency, where applicable.
 

GTR8000

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As far as TLC, last I checked they were operating in FDMA mode in the clear on the 700/800 cell.

Assuming they are still operating on the 700/800 cell, I would check for things like talkgroup ID changes, using TDMA mode, and the dreaded secure mode. Could be that they made some recent changes.
 

CqDx

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Messages
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Location
US
They are active currently on the 7/800 MHz side, no change.

89504
 
Last edited:

GTR8000

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They are active currently on the 7/800 MHz side, no change.
Your screenshot indicates that they are now operating in TDMA mode, so I wouldn't exactly call that "no change". I've updated the mode in the database.
 

CqDx

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Good catch, I didn't even notice that !
 

GTR8000

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No worries, not sure if that's what the issue is with @4-crime, but it's certainly worth noting.

For those of you who submit to the DoITT P25 system...in future submissions please make a note of whether a talkgroup is FDMA or TDMA, as well as which site/cell the talkgroups are operating on. If you happen to hear them on both sites, please note that (probably rare except for maybe OEM/DoITT radios). Thanks.
 

GTR8000

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CQDX, could you do a Channel Activity screen grab for the UHF side of the P25 system? Thanks.
The UHF cell info is accurate and up to date, I checked it recently. What exactly are you looking for?
 

GTR8000

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Which channels are TDMA, like the two in the 700 group and the four in the 800 group.
They are all TDMA capable. Don't be misled by what you see in the screenshot of the 700/800 cell. ASTRO 25 systems will not use the BSI or alternate control channels for traffic unless all other traffic channels are already in use.
 

CqDx

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Can you go through the radio and let us know what zones and channels are there on the display?
 
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