[TheList] TheList Digest, Vol 30, Issue 6

Wobbly Wilson wobblynz at live.com
Tue Oct 25 09:32:47 AEDT 2011


Hi guys
Heres the background on whats happening here in AK & in Wlgtn

Wellington is trialling P25 radios in all vehicles on the NZP network. It is trunked and non encrypted.Each appliance has a dual install with a switch to cut over between the older ESA and P25 ESB.
The reason your not hearing the trucks is easy.The control room has linked its Tx together but not the Rx so you are hearing one side of conversation yet the fire trucks are hearing each other and the controlroom.The radios being used are Tait TM9000 series c/w custom LMR large head based on the older head used on the T2020 radios.
Steelcom (Whangerai & AK based Tait dealer plus NZFS contractor for Northland, AK, BoP & Waikato) won a supply contract to supply data heads to AK Region who migrated to UHF 3years ago with Tait TM8250 radios with custom firmware to suit.
The data heads are a Canadian Windows CE based touch screen mimicking the older T2020 functionality but connected serially to the radios.AK went to UHF because the ESA NZP network was to prone to interference in built up areas.

Hope this helps
Cheers





> Date: Tue, 25 Oct 2011 11:10:48 +1300
> From: barny1 at clear.net.nz
> To: thelist at radiowiki.org.nz
> Subject: Re: [TheList] TheList Digest, Vol 30, Issue 6
> 
> I did notice recently that a company called "Steelcom" has been awarded the
> contract to supply new 'button boxes' for NZFS. Has anyone from the Auckland
> area amoung the 'scanners group' had a look inside a fire-truck recently and
> noticed one of these updated version of the old original 'MSU'? This could
> be what Tait down here are fitting in the Trucks.
> 
> Regards,  John B (Wgton.)
>    1. Fire Channel Changes (Tristin Davis)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sun, 23 Oct 2011 18:50:43 +1300
> From: Tristin Davis <tristindavis at clear.net.nz>
> To: thelist at radiowiki.org.nz
> Subject: [TheList] Fire Channel Changes
> Message-ID: <7B5A75DC8B744540B67C78EAEE81AE44 at TrisKev>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> Interesting to note still no Verbal Sit Reps on Wellington / Wairarapa Fire
> (75MHZ channels) Just the dispatch (Verbal) followed by the toning. Then
> nothing further other than the odd verbal message with further details on
> the incident while the appliance is responding. Following that nil.
> Interesting now i've seen John's comments regarding appliances going into
> Tait in Petone recently for "mysterious" upgrades. Maybe the strike with the
> Fire Services union has been extended or maybe something else going on?
> Could also be something to do with the new frequencies listed on here
> too.... But i haven't gone into that yet, just giving you guys an update.
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