[TheList] Fire UHF incident ground communications

Thu Nov 23 09:50:21 AEDT 2017

Just on the skip issue you mentioned.. The problem with the skip/ducting on ESA (I'd put money on that being the offender, rather than UHF) is that the police (and fire as they're in bed together) don't use CTCSS tones, so the repeater receiver naturally opens up to everything. 

Unfortunately that's poor initial design on Police part, to add tones after the fact basically can't happen logistically... every RT and repeater needs to be reprogrammed at the same time to avoid downtime.  Doing it could be done slowly, add the tones to RT TX first, then add the tone to the RX of the repeater.  Obviously you'd have to see if there's a tone on the Aussie TX and not reuse that here (that'd really be RSMs domain) Would also help with that clown down Levin ways with his crappy Baofeng or whatever ham radio that he shouldn't have, transmitting on the police channels. 

Over the last few years it seems to be less of an issue on Ham1/Waikato Rural at least as more Aussie emergency services are going UHF/digital etc. But also remember 76megs is more susceptible to noise than VHF/UHF frequencies.  Also helping the fact of people moving away from ESA/A-band is Tait is the only manufacturer making that equipment anymore. 

Richard 
----------------------
Sent from a mobile device. Please excuse my brevity, punctuation and spelling. 

On 23 November 2017 10:33:16 AM NZDT, Shane Vickers <senavick2 at gmail.com> wrote:
>ESC band in this topic,  The original poster mentioned Area 22. Can I
>confirm where this is?  No point getting excited if they are rolling
>out in
>Wellington!
>Auckland is using F Band high to assist with skip issues from Aussie
>many
>moons ago..
>
>I am assuming Auckland is Area 22 as they have UHF systems in play..  
>I am
>could be so wrong.....
>
>On Thu, Nov 23, 2017 at 9:45 AM, Mike Bailey <tahiini at gmail.com> wrote:
>
>> My apologies - no regular operational channels. Yes some HF and
>airband
>> stuff is listed, but good on ya if you've heard anything operational
>on
>> it... ever.
>>
>> On Thu, 23 Nov 2017 at 09:36 Chris H <radiowiki at archnetnz.com> wrote:
>>
>>> When you say no police frequencies at all I beg to differ on that
>>> statement:
>>>
>>> Here is just one search I did for Police - like page 2 of 5 or
>something.
>>> Previous Next
>>> Licence ID [image: Descending] Licence No [image: Descending]
>Licensee [image:
>>> Descending] Channel [image: Descending] Ref.Freq. (MHz) [image:
>>> Descending] Location [image: Descending] Grid Reference [image:
>>> Descending] Licence Type [image: Descending] Status
>>> 19203 96116 NEW ZEALAND POLICE ACX45 119.100000 TAURANGA POLICE
>STATION BD37
>>> 795250 Aero Base (Off Route) Current
>>> 23895 97565 NEW ZEALAND POLICE ACX45 119.100000 MT CARGILL CE17
>101239 Aero
>>> Base (Off Route) Current
>>> 23895 97565 NEW ZEALAND POLICE ARX52 131.300000 MT CARGILL CE17
>101239 Aero
>>> Base (Off Route) Current
>>> 24086 125062 NEW ZEALAND POLICE ACX45 119.100000 SUGARLOAF BX24
>717721 Aero
>>> Base (Off Route) Current
>>> 28430 92397 NEW ZEALAND POLICE ACX45 119.100000 NEW PLYMOUTH POLICE
>>> STATION BH29 927760 Aero Base (Off Route) Current
>>> 28430 92397 NEW ZEALAND POLICE ACX5 118.100000 NEW PLYMOUTH POLICE
>>> STATION BH29 927760 Aero Base (Off Route) Current
>>> 28430 92397 NEW ZEALAND POLICE ARX52 131.300000 NEW PLYMOUTH POLICE
>>> STATION BH29 927760 Aero Base (Off Route) Current
>>> 28430 92397 NEW ZEALAND POLICE ACX41 119.000000 NEW PLYMOUTH POLICE
>>> STATION BH29 927760 Aero Base (Off Route) Current
>>> 29066 92399 NEW ZEALAND POLICE ACX45 119.100000 STRATFORD POLICE
>STATION BJ30
>>> 105448 Aero Base (Off Route) Current
>>> 29066 92399 NEW ZEALAND POLICE ARX52 131.300000 STRATFORD POLICE
>STATION BJ30
>>> 105448 Aero Base (Off Route) Current
>>> 29066 92399 NEW ZEALAND POLICE ACX5 118.100000 STRATFORD POLICE
>STATION BJ30
>>> 105448 Aero Base (Off Route) Current
>>> 29066 92399 NEW ZEALAND POLICE ACX41 119.000000 STRATFORD POLICE
>STATION BJ30
>>> 105448 Aero Base (Off Route) Current
>>> 30121 126153 NEW ZEALAND POLICE ACX45 119.100000 MAUNU MT AX30
>113444 Aero
>>> Base (Off Route) Current
>>> 30121 126153 NEW ZEALAND POLICE ARX52 131.300000 MAUNU MT AX30
>113444 Aero
>>> Base (Off Route) Current
>>> 31640 92401 NEW ZEALAND POLICE ARX52 131.300000 HAWERA POLICE
>STATION BK30
>>> 103172 Aero Base (Off Route) Current
>>> 31640 92401 NEW ZEALAND POLICE ACX45 119.100000 HAWERA POLICE
>STATION BK30
>>> 103172 Aero Base (Off Route) Current
>>> 31640 92401 NEW ZEALAND POLICE ACX5 118.100000 HAWERA POLICE STATION
>BK30
>>> 103172 Aero Base (Off Route) Current
>>> 31640 92401 NEW ZEALAND POLICE ACX41 119.000000 HAWERA POLICE
>STATION BK30
>>> 103172 Aero Base (Off Route) Current
>>> 32224 135095 NEW ZEALAND POLICE ARX52 131.300000 PAPAROA BT19 636042
>Aero
>>> Base (Off Route) Current
>>> 32311 97621 NEW ZEALAND POLICE ARX52 131.300000 AUCKLAND BA32 569204
>Aero
>>> Base (Off Route) Current
>>> Previous Next
>>>
>>> On 23/11/2017 09:07 AM, Mike Bailey wrote:
>>>
>>> RSM work in mysterious ways. You'll notice they don't list any
>Police
>>> frequencies at all. I wonder if this falls under the same sort of
>category
>>> - that its RSM approved (lets face it, Fire wouldn't go rogue on
>>> frequencies), and its just not published for privacy and security of
>>> communications?
>>>
>>>
>>> On Thu, 23 Nov 2017 at 08:57 Grant Carroll
><grant.carroll at xtra.co.nz>
>>> wrote:
>>>
>>>> Hi all,
>>>>
>>>> I'm a bit confused as well.!
>>>>
>>>> On the RSM website the frequencies assigned to Fire and Emergency
>New
>>>> Zealand between 492.21875MHz and 497.19375MHz are shown as "Land
>Mobile -
>>>> mobile transmit" and the repeater frequencies don't start until
>498.800MHz.
>>>> So how are the lower frequencies being used as "portable
>frequencies" for
>>>> incident ground communications?
>>>>
>>>> Cheers.
>>>>
>>>> Grunter1.
>>>>
>>>>
>>>> _______________________________________________
>>>> TheList mailing list
>>>> TheList at radiowiki.org.nz
>>>> http://radiowiki.org.nz/mailman/listinfo/thelist_radiowiki.org.nz
>>>
>>>
>>> _______________________________________________
>>> TheList mailing list
>>> TheList at radiowiki.org.nz
>>> http://radiowiki.org.nz/mailman/listinfo/thelist_radiowiki.org.nz
>>>
>>
>> _______________________________________________
>> TheList mailing list
>> TheList at radiowiki.org.nz
>> http://radiowiki.org.nz/mailman/listinfo/thelist_radiowiki.org.nz
>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://radiowiki.org.nz/pipermail/thelist_radiowiki.org.nz/attachments/20171123/75e23774/attachment.html>