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Digital P25 talkgroup & RID information for the NSW Government Radio Network

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> EMERGENCY SERVICES

- Fire & Rescue NSW

- NSW Ambulance

- NSW Rural Fire Service

- NSW State Emergency Service

> ENFORCEMENT AGENCIES

- Corrective Services NSW

- Juvenile Justice NSW

- NSW Police Force

- Office of the Sheriff of NSW

> TRANSPORT SERVICES

- Rail Corporation NSW

- Roads & Maritime Services

- Sydney Ferries

- Transport NSW

> GENERAL SERVICES

- ACT Government Services

- NSW National Parks & Wildlife

- RSPCA NSW

- Sutherland Shire Council

> UTILITY SERVICES

- Ausgrid

- Central Tablelands Water

- Endeavour Energy

- Hunter Water Corporation

- Sydney Catchment Authority

- Sydney Water

> OTHER USERS

- Australian Broadcasting Corp

- Chevra Hatzolah Medical

- ESO & GL (Liaison) Groups

- Sydney Opera House

- Technician & Rental Groups

- Unknown/Unconfirmed Groups

> ADDITIONAL INFORMATION

- FAQ/Questions

- Programming Uniden Scanners

- Control Channel List

- Site Revision Information

- About

- Contact

 

Frequently Asked Questions

Below are answers to frequent questions received by email

What is the NSW Government Radio Network (GRN)?

Who uses the NSW GRN?

What area does the NSW GRN cover?

What is a Talkgroup ID (TG or TGID)?

What is a Radio ID (RID)?

How do I scan the NSW GRN?

Where can I find Control Channel (CC) information?

Where can I find PMR/conventional information?

 


What is the NSW Government Radio Network (GRN)?

The NSW Government Radio Network (GRN) is a digital P25 (or APCO-25) trunked radio network managed by the NSW State Government, operating primarily between 403MHz and 425MHz. It is the main radio network used by emergency services and state government departments within the coverage area.


Who uses the NSW GRN?

The NSW GRN is used by the majority of the NSW emergency services and state government departments who require wide-area communications within the coverage area. The most notable exceptions are the NSW Police Force and Sydney Buses who both operate their own extensive conventional radio networks.


What area does the NSW GRN cover?

The network covers more than one third of New South Wales (NSW), as well as the majority of the Australian Capital Territory (ACT). Click the image below for a recent coverage map.

NSW GRN Coverage Map


What is a Talkgroup ID (TG or TGID)?

A Talkgroup ID (TG or TGID) is a unique number (on the NSW GRN it is normally 5-digits in length) which allows each individual radio that is programmed with that talkgroup to communicate with other radios programmed with the same talkgroup over the network. TGID's will be heard on GRN sites when a radio programmed with a TGID that is in use is within range of that site. If a GRN radio programmed with a TGID is not using the GRN site you are scanning you will not hear that talkgroup.

NSW GRN TGID's are allocated to users in blocks, for example talkgroups in the 101## range are allocated to Fire & Rescue NSW, with TG 10101 being a group (channel) which is used for part of the Sydney region.

As a further example of how the network operates, the above Fire & Rescue NSW talkgroup will likely be heard on most Sydney GRN sites as there would be radios in use with this talkgroup using those sites. However it would be unlikely this talkgroup to be heard on Bathurst sites - unless a radio using that site is currently switched to that talkgroup.


What is a Radio ID (RID)?

The Radio ID (RID) number is a unique number (on the NSW GRN it is generally 7-digits in length) assigned to each individual radio attached to the network. RID's are useful for monitoring users when using PC trunking software (such as UniTrunker) to monitor GRN sites. This information is now also displayed on the latest scanners, such as the UBCD396XT.

NSW GRN RID's are allocated to users in blocks, for example RID's in the 200#### range are allocated to Fire & Rescue NSW.


How do I scan the NSW GRN?

To scan the NSW GRN you will need a radio scanner capable of decoding a 400MHz P25 trunking system with a 9600 baud rate. Uniden Australia, as well Uniden America, GRE, RadioShack and other scanner manufacturers produce scanners that will track digital trunking systems such the NSW GRN.

Basic programming suggestions for the UBCD396XT, as well as the older UBCD996T (base/mobile) and UBCD396T (handheld) can be found on the nswgrn.com site here.

For other scanner makes and models please follow the programming manual provided with the scanner.


Where can I find control channel (CC) information?

A complete list of current control channels (CC) can be found on the nswgrn.com site here. Specific control channel (CC) information can be found on numerous websites on the internet and by searches on the ACMA website. This website concentrates on talkgroup and RID information and has no plan to provide specific control channel (CC) information.


Where can I find PMR/conventional/'frequency' information?

This website does not list PMR/conventional/'frequency' information and concentrates solely on talkgroup (TG or TGID) and RID information for the NSW GRN. There are no plans to include PMR information on this site in the future as this information can be found on numerous websites on the internet and by searches on the ACMA website.

 

 
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