[TheList] Fire UHF incident ground communications
Radio Scanner
rs157950 at gmail.com
Thu Nov 23 17:35:31 AEDT 2017
Definitely poor design. CTCSS tones would obviously help with spurious
signals triggering the repeater but it wouldnt stop dickheads with a
Baofeng for long at all. Atleast the radio can still be used at the same
time its being mucked with.
On 23/11/2017 1:03 p.m., Brendan Sheehy wrote:
> We use to get it bad down south untill tx frequency was changed on one
> of the vtg channels.
>
> Get Outlook for Android <https://aka.ms/ghei36>
>
> ------------------------------------------------------------------------
> *From:* TheList <thelist-bounces at radiowiki.org.nz> on behalf of
> DogSecurity - Richard <richard at dogsecurity.co.nz>
> *Sent:* Thursday, November 23, 2017 11:50:21 AM
> *To:* thelist at radiowiki.org.nz
> *Subject:* Re: [TheList] Fire UHF incident ground communications
> 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
> <mailto: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
> <mailto: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 Descending Licence No Descending Licensee
> Descending Channel Descending Ref.Freq. (MHz)
> Descending Location Descending Grid Reference
> Descending Licence Type 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
>> <mailto: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.
>>
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