[TheList] Fire UHF incident ground communications
Radio Scanner
rs157950 at gmail.com
Thu Nov 23 17:57:15 AEDT 2017
Yes you have a point there but you only have to look in the book/PDF of
available channels to have a VERY solid starting point. Security through
obscurity obviously isn't ideal, however I would like to see it stay
unencrypted for the foreseeable future as cellphone calls are dirt cheap
now if they have to relay some sensitive information back to comms.
On 23/11/2017 7:47 p.m., DogSecurity - Richard wrote:
> I partly agree, for most people with scanners, in my experience
> haven't even heard of CTCSS, so as long as it's not published on say
> RadioWiki and the likes, would prevent most people doing that.
>
> Those that know about CTCSS obviously would likely be able to work out
> what tone is in use, and therefore probably be able to also work out
> the transmit frequency with a lot of patience :)
>
> ----------------------
> Sent from a mobile device. Please excuse my brevity, punctuation and
> spelling.
>
> On 23 November 2017 7:35:31 PM NZDT, Radio Scanner
> <rs157950 at gmail.com> wrote:
>
> 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> 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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