[TheList] Police VHF linking

Tue May 12 16:10:49 AEST 2020

Oh ok that's funny as I havent heard anything apart from Dunedin comms. No
'out of district' analogue chatter.

Thanks for that info.

On Tue, 12 May 2020, 18:03 , <thelist-request at radiowiki.org.nz> wrote:

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> Today's Topics:
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>    1. Re: Antenna recommendation (Radio Engineering)
>    2. Police VHF linking (Darryl Healy)
>    3. Re: Antenna recommendation (Radio Scanner)
>    4. Re: Police VHF linking (Brendan Sheehy)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 12 May 2020 17:09:32 +1200
> From: Radio Engineering <radio.restorations at gmail.com>
> To: thelist at radiowiki.org.nz
> Subject: Re: [TheList] Antenna recommendation
> Message-ID:
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> c7htCBdGRg at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
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> Don't forget that the discone is a unity gain antenna. If your scanner or
> receiver is a bit deaf in the front end you may want to look at a pre-amp.
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> ------------------------------
>
> Message: 2
> Date: Tue, 12 May 2020 17:42:41 +1200
> From: Darryl Healy <darryl0768healy at gmail.com>
> To: thelist at radiowiki.org.nz
> Subject: [TheList] Police VHF linking
> Message-ID:
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> CAJhYOQaKxRjAa9rFDteTNd0WnadY22zZG5-uwY4xHYDnsm4DtQ at mail.gmail.com>
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>
> Hi listers
>
> I live in the lovely city of Timaru and today something that has never
> happened before happened.
>
> An old police VHF channel and current rural Fire channel livened up with
> police comms chatter...
>
> It seems the radios in Dunedin have been linked in such a way that I am
> hearing Dunedin comms on 75.4500mhz.
> It shows as the old Timaru CH1 and is a current rural fire channel that
> they refer to as the Lyttelton channel.
>
> Much to my delight it's a pleasant surprise but I'm not expecting it to
> last long before they change their shift configurations etc.
>
> The downside to this is I can only hear comms call, no units. All in all
> I'm not complaining about it as its busy down there today.
>
> Does anybody have any further knowledge on how the radio linking works? I
> understand police share a platform with fire but how is Dunedin Comms
> linked up to Timaru? Could it be an extra plug on a National Fire dispatch
> desk as I understand they're based in one location for the entire south
> island, or could it be an extra plug in on a police comms desk which an
> extra plug could have been crossed by mistake. (I'm not sure if there is
> one or 2 police comms locations for the South Island).
>
> Those in Christchurch and wider Canterbury should scan their fire
> frequencies to see if this is the same in wider Canterbury or even perhaps
> the south island. Although it is only the Dunedin channel, not Central
> Otago or Oamaru.
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> ------------------------------
>
> Message: 3
> Date: Tue, 12 May 2020 17:55:47 +1200
> From: Radio Scanner <rs157950 at gmail.com>
> To: thelist at radiowiki.org.nz
> Subject: Re: [TheList] Antenna recommendation
> Message-ID: <5EBA3A63.6070005 at gmail.com>
> Content-Type: text/plain; charset="windows-1252"; Format="flowed"
>
> The best bang for buck for those has to be the LNA4ALL. Ive got two
> separate setups in different locations and they work wonders for the price.
>
> On 12/05/2020 5:09 p.m., Radio Engineering wrote:
> > Don't forget that the discone is a unity gain antenna. If your scanner
> > or receiver is a bit deaf in the front end you may want to look at a
> > pre-amp.
> >
> >
> > _______________________________________________
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> ------------------------------
>
> Message: 4
> Date: Tue, 12 May 2020 06:02:06 +0000
> From: Brendan Sheehy <shiters_r_us at hotmail.com>
> To: "thelist at radiowiki.org.nz" <thelist at radiowiki.org.nz>
> Subject: Re: [TheList] Police VHF linking
> Message-ID:
>         <
> BL0PR06MB42104DA3F3F8024378360170D9BE0 at BL0PR06MB4210.namprd06.prod.outlook.com
> >
>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi Darryl
>
> This is patched to the Dunedin dispatchers desk when and out of district
> unit with no Digital radios installed is in the Canterbury area.
>
> Only the Dunedin dispatcher will hear the unit on the old analogue
> channels and anyone scanning them will too, Dunedin will not hear them.
>
> This is all done at the dispatchers desk via the IPICS application.
>
> Regards
>
> Brendan
>
> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
> From: Darryl Healy<mailto:darryl0768healy at gmail.com>
> Sent: Tuesday, 12 May 2020 5:54 PM
> To: thelist at radiowiki.org.nz<mailto:thelist at radiowiki.org.nz>
> Subject: [TheList] Police VHF linking
>
> Hi listers
>
> I live in the lovely city of Timaru and today something that has never
> happened before happened.
>
> An old police VHF channel and current rural Fire channel livened up with
> police comms chatter...
>
> It seems the radios in Dunedin have been linked in such a way that I am
> hearing Dunedin comms on 75.4500mhz.
> It shows as the old Timaru CH1 and is a current rural fire channel that
> they refer to as the Lyttelton channel.
>
> Much to my delight it's a pleasant surprise but I'm not expecting it to
> last long before they change their shift configurations etc.
>
> The downside to this is I can only hear comms call, no units. All in all
> I'm not complaining about it as its busy down there today.
>
> Does anybody have any further knowledge on how the radio linking works? I
> understand police share a platform with fire but how is Dunedin Comms
> linked up to Timaru? Could it be an extra plug on a National Fire dispatch
> desk as I understand they're based in one location for the entire south
> island, or could it be an extra plug in on a police comms desk which an
> extra plug could have been crossed by mistake. (I'm not sure if there is
> one or 2 police comms locations for the South Island).
>
> Those in Christchurch and wider Canterbury should scan their fire
> frequencies to see if this is the same in wider Canterbury or even perhaps
> the south island. Although it is only the Dunedin channel, not Central
> Otago or Oamaru.
>
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