This is something which could be useful going into fire season here in South Australia. It is a feed from the SA government trunk radio network.
I will see if there are more feeds like this that also include the regional and remote area trunks. This sounds like the Adelaide CBD feed.
http://audio4.radioreference.com:80/890591256
Hear the GRN live here:
The links came from http://www.sascan.net.au/?page=onlineScanners
The SA Government Radio Network also has a paging service. http://www.sascan.net.au/?page=grnPaging or http://paging1.sacfs.org/public.php
Find the full list of live audio here.
Some related interesting links from the SA SCAN site.
South Australian Emergency Services South Australian Police (SAPOL) South Australian Ambulance Service (SAAS) South Australian Metropolitan Fire Service (MFS) South Australian Country Fire Service (CFS) South Australian State Emergency Service (SES)
Scanning Resources Aurfscan.com – Australian scanning forum Sasruf.net – South Australian scanning forum Ausfreq.com – Wireless communications monitoring enthusiasts group VicScan.org Lake Macquarie (NSW) Scanning ACMA Online Frequency Search Australia Sydney Scan Radioreference.com The Strong Signals Homepage Digital Modes Audio Samples Butel Scanning Software
Citizen Band (CB) Radio Australian Citizen Radio Monitors (ACRM) Australian Association of Citizen Band Radio Operators UHF World – Repeater List CBDomain.com – Australia’s #1 Radio Hobby Website
Radio Equipment AJK Communications Please support SA Scan by making a donation on their PayPal link
Other South Australian Online scanners Adelaide Scan – Online scanner covering emergency services in the Adelaide metro area – may need Winamp to run Scan Adelaide – Online scanner covering emergency services and Transport S.A. in the Adelaide metro area. Barossa Scan – Online scanner covering emergency services in the Barossa Valley SAGRNÂ Scan – Online scanner covering emergency services in the Adelaide area and northern suburbs SAGRN Paging Feed 1 – Online SAGRN paging feed Adelaide Airport – Online feed covering all the airband frequencies used at Adelaide Airport (YPAD)
Other Australian Online scanners Dubbo Scan – Online scanner with display covering emergency services in the Dubbo area Sydney Scan – Online scanner covering the Campbelltown / Sydney area Scan Northern NSW – Online scanner with display covering emergency services in the Tweed Heads area Scan South Coast NSW – Online scanner covering emergency services in the Bega area NSW Online Scanner – Unsure where this one is located, monitors emergency services in rural NSW Scan ACT – Online scanner with display covering emergency services in the Canberra area Melbourne Online Scanner – Online scanner with display covering emergency services in the Melbourne area Victoria CFA Online Scanners – Multiple online scanners covering various parts of Victoria Bendigo Online Scanner – Online scanner covering emergency services in the Bendigo area Brisbane Scanner – Online scanner monitoring the Police in the Brisbane and Gold Coast areas Mareeba Scanner – Online scanner covering emergency services in the Mareeba area (near Cairns), may not be online 24/7 Cairns Online Scanner – Online scanner covering emergency services in the Cairns area, may not be online 24/7
Live Feed Listing for Central – Greater Adelaide & Mt Lofty Ranges Division
To listen to a feed using the online player, choose a feed in the playlist in the above player. To listen using other methods such as Windows Media Player, iTunes, or Winamp, choose your player selection and click the speaker icon to start listening. Premium Subscribers can set their default external medial player format on their MyRR Personalization Page. Feed archives can be found by clicking the additional feed details icon 
for each feed.
| Listen | Feed | Genre | Listeners | Player Selection | Links | Status |
|---|---|---|---|---|---|---|
 |  South Australian Emergency Services Fire, Ambulance, Rescue, Marine | Public Safety | 7 |  | Online |