[TheList] digital radio hitches see light of day (Long winded ignore if you're not interested in the behind the scenes)

Mon Aug 24 10:09:45 AEST 2009

thankyou for posting Shane, sounds like you had a lot of fun,something for 
us in auckland to look forward to,although the apco system is already live 
and well in ak.
----- Original Message ----- 
From: "Shane V" <levick at clear.net.nz>
To: <thelist at radiowiki.org.nz>
Sent: Monday, August 24, 2009 7:39 AM
Subject: [TheList] digital radio hitches see light of day (Long winded 
ignore if you're not interested in the behind the scenes)

> Had the pleasure of Wellington's good weather last week and a chance to
> watch the control channels on their new system.
>
> I was based in the CBD and got a good range of both UHF and VHF to pick
> from...
>
> Found 4 active channels while monitoring...(VHF) I mean channels not freq
> allocations...
>
> How many does Wellington work with?  Knowing we have at least nine in
> Auckland including motorways and checks channels not to mention
> simplex..and specials..
>
>
> Each control channel had up to 5 support voice channels (That went active)
> with the system cycling the voice channels
>
> UHF system appeared to have the one main channel active which I can assume
> was Wellingtons city channel...guess the control channels I
> found in the city were being used mainly for Wellingtons CBD channel. I 
> seem
> to recall seeing a second channel on UHF to active
> from time to time Friday night..no doubt it was active more but the main
> masked its appearance..
>
> Could have done with a laptop to log more but I should be grateful I was
> able to catch what I did...
>
> I saw the LNK icon light up for all voice channels as they went active so 
> am
> wondering how the radios hand off between repeater sites..
> Hope someone more technical can answer that one..I am used to monitoring
> Auckland's private trunk systems where they physically change channels
> as required as they leave coverage of the CBD repeaters..(EDACS system now
> owned by Team Talk.)
>
> Does the new system have some form of voting in place to ensure portables
> have access to the best repeater for example.
>
> Most vehicles I saw in the CBD area where sporting three antennas across 
> the
> boot with the new ESB antenna in the boot center and a UHF and
> the older 75 MHz on the boot edges...
>
> All staff on foot sported the nice new TAITS...I so wanted to ask for a 
> look
> but didn't really want to get locked up while on holiday...
> seems Wellington has its fair amount of little hoods for the on foot guys
> and girls to deal with while I was watching on.
>
> Annoyed the wife no end with the abrupt noise heard just before the voice
> channel with quiet but it was great to see what Auckland has to look
> forward too...well from a technical point of view...don't know if silence 
> is
> golden in this case..I saw active UHF on the old band but after
> years of listening found it more interesting to get a feel for the fun the
> tech people must be having getting the new system working and
> debugged...
>
> They get Wellington de bugged the rest of the country will be 
> easy...famous
> last words...guess it depends on coverage needs..
> Will the system need to provide coverage for a North 1 car in Manukau for
> example or will the channels work as then do now
> and the mobile change from North 1 to South 1 as they leave their patch...
>
>
>
>
>
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