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What is the MMR?
The Metropolitan Mobile Radio system is a DIGITAL trunked radio system that was set up by MOTOROLA for the emergency services in the metropolitan area to use. -
Who uses the MMR?
The Victoria Police (in the metropolitan area), Metropolitan Fire Brigade and Ambulance Victoria (Metropolitan) use the MMR Network. -
When was the MMR introduced?
The MMR system was up and running in time for the Commonwealth Games (15-26 March 2006). VICPOL and the MFB were the first users expected to be on the system in time for the games. AV (Metropolitan) moved onto the system after the games. The system initially commenced installation around 2003/04. -
Are any other services going to use the MMR?
At present the system is only being planned for the Metropolitan and Greater Geelong area and there are no plans for other users to use the system as of yet. -
Why was the MMR introduced?
There were a number of reasons why - security (secure from being monitored and radio's being stolen), interoperability (agencies can talk direct to each other), better reception. Also the current technology used is getting very old and is prone to interference. -
What system was used?
Motorola won the MMR contract and implemented an APCO-25 (ASTRO) system. -
So can I still monitor an APCO-25 system?
Yes so long as the talkgroup is not encrypted. -
So I can no longer listen if encryption is used?
Correct - if the agencies implement encryption it will be DES strength and unbreakable except for government agencies. -
Are any agencies using encryption?
ALL Victoria Police talkgroups wil be encrypted. The MFB and AV will have access to encrpytion on selected Talkgroup ID's. -
So what if I steal a radio so I can still listen to the police?
Our understanding is that if a radio is stolen and reported as such the next time the radio 'logs' onto the system it is 'stunned' and needs to be returned to Motorola. -
Can I buy a Motorola radio and clone it?
We don't have an answer to this yet - we think though that the system would recognise two radio's with the same ID and reject both – ‘stunning’ them in the process.
Is there a problem? We don't have an answer to this yet - we think though that the system would recognise two radio's with the same ID and reject both.
