Metrol

Communications scanning & radio related discussion for Victoria, covering Melbourne, the Grampians, Gippsland, Loddon Mallee etc
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melbournefan
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Metrol

Post by melbournefan »

well it looks like taxis have taken over the metrol frequencies can anyone confirm?
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railscan
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Re: Metrol

Post by railscan »

I posted this in another forum. But in answer to your question, more than likely.

Melbourne Metropolitan trains have or are in progress of migrating to the Digital Train Radio System (DTRS). It utilises the Global System for Mobile – Rail (GSM-R) as the underlying technology for the system. The system operates in the 1800MHz spectrum. It CANNOT be scanned, even if you have a scanner capable of receiving 1800 MHz. GSMR is based in the GSM cellular telephone system which employs a highly encrypted network. The highly encrypted control algorithm is it transmitted along with the encrypted voice.

Railscan
melbournefan
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Re: Metrol

Post by melbournefan »

railscan wrote:I posted this in another forum. But in answer to your question, more than likely.

Melbourne Metropolitan trains have or are in progress of migrating to the Digital Train Radio System (DTRS). It utilises the Global System for Mobile – Rail (GSM-R) as the underlying technology for the system. The system operates in the 1800MHz spectrum. It CANNOT be scanned, even if you have a scanner capable of receiving 1800 MHz. GSMR is based in the GSM cellular telephone system which employs a highly encrypted network. The highly encrypted control algorithm is it transmitted along with the encrypted voice.

Railscan
I know about that, i have found something on the acma database
8319412-8357057 505.6375 MHz 10K1F3E Platforms Flinders Street Station MELBOURNE (300394)
8319413-8357058 515.6375 MHz 10K1F3E Platforms Flinders Street Station MELBOURNE (300394)

And

360873-21634 518.45 MHz 16K0F1D Eureka Tower Rooftop 3-9 Riverside Quay SOUTHBANK (9004199)
86238-21634 508.45 MHz 16K0F1D Eureka Tower Rooftop 3-9 Riverside Quay SOUTHBANK (9004199)


What is this?
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railscan
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Re: Metrol

Post by railscan »

melbournefan wrote:
railscan wrote:I posted this in another forum. But in answer to your question, more than likely.
Melbourne Metropolitan trains have or are in progress of migrating to the Digital Train Radio System (DTRS). It utilises the Global System for Mobile – Rail (GSM-R) as the underlying technology for the system. The system operates in the 1800MHz spectrum. It CANNOT be scanned, even if you have a scanner capable of receiving 1800 MHz. GSMR is based in the GSM cellular telephone system which employs a highly encrypted network. The highly encrypted control algorithm is it transmitted along with the encrypted voice.
Railscan
I know about that, i have found something on the acma database
8319412-8357057 505.6375 MHz 10K1F3E Platforms Flinders Street Station MELBOURNE (300394)
8319413-8357058 515.6375 MHz 10K1F3E Platforms Flinders Street Station MELBOURNE (300394)
And
360873-21634 518.45 MHz 16K0F1D Eureka Tower Rooftop 3-9 Riverside Quay SOUTHBANK (9004199)
86238-21634 508.45 MHz 16K0F1D Eureka Tower Rooftop 3-9 Riverside Quay SOUTHBANK (9004199)

Not being in Melbourne doesn't help me, but the first assignment is more than likely station operations. The day to day running of Flinders Street, used by stations staff as opposed to trains. The second, given it's location is likely for the trams. I realise it is not close to trams routes but that, sometimes works better than having a TX right above the tracks. I dare say a little listening will reveal all.

R


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melbournefan
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Re: Metrol

Post by melbournefan »

Not being in Melbourne doesn't help me, but the first assignment is more than likely station operations. The day to day running of Flinders Street, used by stations staff as opposed to trains. The second, given it's location is likely for the trams. I realise it is not close to trams routes but that, sometimes works better than having a TX right above the tracks. I dare say a little listening will reveal all.

R
Will listen :)
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Pumper_50
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Re: Metrol

Post by Pumper_50 »

As Railscan has advised the new system is 1800Mhz. The DTRS GSM-R is 2G from memory. In some instances your mobile phone can see the network if you're nearby a rail corridor and tower.

In regards to you hearing Taxi's on what you think were Metrol frequencies, do you have a particular frequency you heard it on?

What I think you may have heard was Telstra Fleetcoms which is essentially a MPT1327 trunking network. It is basically a UHF version of the SMR Network.

http://www.telstra.com.au/customer-term ... etcoms.pdf

It has frequencies in several bands and some of those frequencies are around where you would traditionally find rail frequencies.

There is also a similar system operated by Silvercomms, (Part of Silivertop Taxis). It may also have been one of theirs.
It also has frequencies around that band, plus several others.
http://www.silvertop.com.au/silvercomm

508.450MHz is a Tramways frequency, as suggested by Railscan. It is Channel 11 of their Network.
http://vicradiozone.com/other/tramways/

505.6375MHz is possibly a Flinder Street Station local channel for platform, concourse, retail ops etc. It is only rated as 5 Watts. So if you plan on listening you'll need to be relatively nearby.

While you're there some of these might be of interest to you also.
http://web.acma.gov.au/pls/radcom/site_ ... _ID=300394
melbournefan
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Re: Metrol

Post by melbournefan »

Pumper_50 wrote:As Railscan has advised the new system is 1800Mhz. The DTRS GSM-R is 2G from memory. In some instances your mobile phone can see the network if you're nearby a rail corridor and tower.

In regards to you hearing Taxi's on what you think were Metrol frequencies, do you have a particular frequency you heard it on?

What I think you may have heard was Telstra Fleetcoms which is essentially a MPT1327 trunking network. It is basically a UHF version of the SMR Network.

http://www.telstra.com.au/customer-term ... etcoms.pdf

It has frequencies in several bands and some of those frequencies are around where you would traditionally find rail frequencies.

There is also a similar system operated by Silvercomms, (Part of Silivertop Taxis). It may also have been one of theirs.
It also has frequencies around that band, plus several others.
http://www.silvertop.com.au/silvercomm

508.450MHz is a Tramways frequency, as suggested by Railscan. It is Channel 11 of their Network.
http://vicradiozone.com/other/tramways/

505.6375MHz is possibly a Flinder Street Station local channel for platform, concourse, retail ops etc. It is only rated as 5 Watts. So if you plan on listening you'll need to be relatively nearby.

While you're there some of these might be of interest to you also.
http://web.acma.gov.au/pls/radcom/site_ ... _ID=300394
i think it was 414.910-915mhz

Thanks Matt :)
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