[TheList] Police VHF linking

Tue May 12 18:22:17 AEST 2020

Also currently heard in Christchuch on Fire South UHF link

Sent from my Samsung Galaxy smartphone.

-------- Original message --------
From: Darryl Healy <darryl0768healy at gmail.com>
Date: 12/05/20 18:12 (GMT+12:00)
To: thelist at radiowiki.org.nz
Subject: Re: [TheList] Police VHF linking

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<mailto:thelist-request at radiowiki.org.nz>> wrote:
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Today's Topics:

   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)

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Message: 1
Date: Tue, 12 May 2020 17:09:32 +1200
From: Radio Engineering <radio.restorations at gmail.com<mailto:radio.restorations at gmail.com>>
To: thelist at radiowiki.org.nz<mailto:thelist at radiowiki.org.nz>
Subject: Re: [TheList] Antenna recommendation
Message-ID:
        <CAFp_d1kriaDOk-2KEJbRMGJ3cPoTODzX51Q8z5g=c7htCBdGRg at mail.gmail.com<mailto:c7htCBdGRg at mail.gmail.com>>
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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<mailto:darryl0768healy at gmail.com>>
To: thelist at radiowiki.org.nz<mailto:thelist at radiowiki.org.nz>
Subject: [TheList] Police VHF linking
Message-ID:
        <CAJhYOQaKxRjAa9rFDteTNd0WnadY22zZG5-uwY4xHYDnsm4DtQ at mail.gmail.com<mailto:CAJhYOQaKxRjAa9rFDteTNd0WnadY22zZG5-uwY4xHYDnsm4DtQ at mail.gmail.com>>
Content-Type: text/plain; charset="utf-8"

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<mailto:rs157950 at gmail.com>>
To: thelist at radiowiki.org.nz<mailto:thelist at radiowiki.org.nz>
Subject: Re: [TheList] Antenna recommendation
Message-ID: <5EBA3A63.6070005 at gmail.com<mailto: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.
>
>
> _______________________________________________
> TheList mailing list
> TheList at radiowiki.org.nz<mailto:TheList at radiowiki.org.nz>
> http://radiowiki.org.nz/mailman/listinfo/thelist_radiowiki.org.nz

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Message: 4
Date: Tue, 12 May 2020 06:02:06 +0000
From: Brendan Sheehy <shiters_r_us at hotmail.com<mailto:shiters_r_us at hotmail.com>>
To: "thelist at radiowiki.org.nz<mailto:thelist at radiowiki.org.nz>" <thelist at radiowiki.org.nz<mailto:thelist at radiowiki.org.nz>>
Subject: Re: [TheList] Police VHF linking
Message-ID:
        <BL0PR06MB42104DA3F3F8024378360170D9BE0 at BL0PR06MB4210.namprd06.prod.outlook.com<mailto: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<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><mailto: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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