Tasmania GRN

[SCPD]

Hi all,
I have been looking at the website for the TASGRN
(http://www.grn.tas.gov.au) and it has been updated and quite a bit of
information that used to be on there has now been removed and from
reading the information on the main page it looks to me like the plans
to build the new network have been put on the back burner now that the
goverment has purchased the EDACS system.

This is good news in one way as it means the police will be staying on
the EDACS system for a while longer and we should still be able to
listen to them but in another way by pushing the time frame back this
means that by the time comes to build the new network unlike today
where it would be based on the MMR type syetem of being APCO25 phase 1
it could end up being an APCO25 phase 2 system which are just starting
to gain usage in the US and due to the fact that encryption is built
in to the phase 2 standard by default and is using two data streams on
a single 12.5KHz wide channel being able to buy a scanner for this
type of system might not be possible.

Anyway, I will keep my ears open and see what else I can find out.

Paul
www.geocities.com/paulgblundell

 

[SKEYGEN]

There are no Phase 2 systems anywhere, including the USA. Phase II has not been ratified, and as such no equipment is available yet. The main reason it hasn't been ratified is Motorola is drag-arsing badly enough for US Congress to get involved, otherwise, P25 would have seen the rapid progress TETRA has.

Trunking control channel encryption is part of the Phase 1 standard too. There's nothing about P25 Phase II (or TETRA or ETSI DMR for that matter) from a technological perspective that prevents manufacturers from building scanners that will monitor such a system.

 

[SCPD]

I have updated my page with some more info.
http://geocities.com/paulgblundell/