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E=MC2
- Posts: 52
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by E=MC2 » Mon Sep 01, 2008 10:43 am
NSW Ambo's MDT's what has happened to them, I was sure they did use the GRN to rx/tx job's over the MDT's. I have just started to rx the Ambo's again and things have changed
How are the Ambo's tx/rx MDT data ? I have not heard any MDT data bursts with Ambo's TG's. I am very keen to give the MDT decoding software / Listen MDT a shake down for the 1st time as I understood how the Ambo's work so I thought it would be a great place to start. As stated before I was a 99.99% VKG rxer and was doing ok with that but I am now looking at boarding my horizons in other areas so I would appreciate any help with this issue and MDT decoding software. Thats all for now , have great week 73z E=MC2
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geodementia
- Posts: 16
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- Location: Canberra
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by geodementia » Mon Sep 01, 2008 12:24 pm
I believe NSWAS MDT moved off GRN and went to the Telstra CDMA network quite a while ago. It then migrated again from CDMA to Telstra's Next-G (which is just another version of CDMA).
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system_tech
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by system_tech » Mon Sep 01, 2008 4:39 pm
geodementia wrote:I believe NSWAS MDT moved off GRN and went to the Telstra CDMA network quite a while ago. It then migrated again from CDMA to Telstra's Next-G (which is just another version of CDMA).
Thats correct
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pks
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by pks » Mon Sep 01, 2008 8:24 pm
geodementia wrote:I believe NSWAS MDT moved off GRN and went to the Telstra CDMA network quite a while ago. It then migrated again from CDMA to Telstra's Next-G (which is just another version of CDMA).
No wonder its not very reliable
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JAFO
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by JAFO » Mon Sep 01, 2008 8:43 pm
Mal may know more, but I think they are now using the new NSW Mobile Data Radio Network these days.
The NSW Mobile Data Radio Network uses a combination of different networks MDRN Within the Sydney Region, Telstra's Next G Network and Satellite in remote areas.
http://www.gcio.nsw.gov.au/ict-key-stra ... rvice-mdrsJAFO
VK2FGQ
UBCD369XT, UBCD536-PT, UBCD436-PT
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JimK
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by JimK » Mon Sep 01, 2008 8:44 pm
Actually its 100% better than when it was on GRN.
On GRN, data had to be set up so it was transmitted 3 times to ensure the car got it.... and then it still didn't!
About 5 years ago, looking at the GRN freqs, sometimes about 60-70% of the channels were just taken up with AMBCad data, especially during the daytime.
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citabria
- Site Admin
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by citabria » Mon Sep 01, 2008 10:47 pm
system_tech wrote:geodementia wrote:I believe NSWAS MDT moved off GRN and went to the Telstra CDMA network quite a while ago. It then migrated again from CDMA to Telstra's Next-G (which is just another version of CDMA).
Thats correct
Ahem, OK
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system_tech
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by system_tech » Mon Sep 01, 2008 11:21 pm
JimK wrote:Actually its 100% better than when it was on GRN.
On GRN, data had to be set up so it was transmitted 3 times to ensure the car got it.... and then it still didn't!
About 5 years ago, looking at the GRN freqs, sometimes about 60-70% of the channels were just taken up with AMBCad data, especially during the daytime.
Yes the data protocol (by the MDT provider) was atrocious. It was designed for a PMR system not trunking and was not integrated well, mind you, what would the people supervising the network know ... they were not allowed to be across it.
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Mike Alpha
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by Mike Alpha » Tue Sep 02, 2008 9:21 am
So will the MDTs move back to the GRN when it goes fully sick digital? Is there enough capacity in ASTRO 25 to handle the data?
Mike
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E=MC2
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by E=MC2 » Tue Sep 02, 2008 9:58 am
Well it is what I should have expected, that was a very short foray into MDT'z. I just got the scanner out again after about 3 months and thought I would make lemonade now with the VKG lemon'z and the lemon'z are now code 4 and a fresh very pungent new product has hit the fan, now it's Dung beatles are on the horizon I suppose
Hi 73z Richard E=MC2
