[TheList] APCO25

Sat Apr 23 18:23:01 AEST 2011

Can't forget a certain young fellah or fellahs who used to annoy the 
crap out of customers and staff at certain takeaway drive-thrus, ah yes 
those were the days........   lmao

On 23/04/2011 7:36 p.m., Neill Ellis wrote:
> LOL, or High Power on HF to set off Burglar Alarms. One of the local 
> rouges hammered Tauranga to the point that just about all the alarms 
> were replaced with newer equipment that had better immunity. 
> Occasionally he'd go over to Rotovegas or Hamiltown and cause caos 
> over there.
>
> Then there was the VESDA Fire Alarm in the telephone exchanges, 
> temperamental at the best of times. Fire would check, reset the system 
> etc. Last thing they'd do was call up on their handportable to say it 
> was all good and they were on their way. Of course the burst of RF 
> from that call just outside the door would often set it off again.
>
> Those were the days.
>
> Thanks for the stroll down memory lane Andy :-)
>
> Regards,
>
> Neill.
>
>
> On 23/04/2011 5:30 p.m., Andy wrote:
>> If that catches on it would be a great unintended benefit of the digital
>> radio system.
>> Imagine, all you have to do is press the mic button and every speeder 
>> within
>> range hits the brakes!!
>>
>> Reminds me of bit of some harmless fun indulged in by some young 
>> constables
>> back in the early 80s when space invader machines were the latest 
>> attraction
>> at the local takeaway.
>> These machines were a magnet for the local "yoof" on a Friday night, 
>> before
>> they moved on to their normal activities of syphoning gas and roaring 
>> around
>> pissed in mk2 Cortinas. It didn't take long to establish that the radio
>> suppression on these devices was not very effective to say the least. A
>> quick burst of 25 watts of carrier at around 78MHz from the innocent 
>> white
>> HZ Holden parked across the road was sufficient to blank the screen and
>> reset the machine so it said  "Game Over - Insert 20 cents ".  It was
>> amazing how much money they would feed it before realizing that 
>> something
>> was going on, especially if you gave them a couple of minutes of play 
>> before
>> hitting the button again. Every time they complained to the takeaway 
>> guy it
>> worked perfectly when he tried it. They never figured it out.
>>
>> Andy
>>
>>
>>   -----Original Message-----
>> From: Mike Barnes (ZL3TMB) [mailto:zl3tmb at ihug.co.nz]
>> Sent: Friday, 22 April 2011 10:35 a.m.
>> To: zl1cop at qsl.net
>> Subject: RE: [TheList] APCO25
>>
>> I know to slow down, and keep the $$ in my pocket :)
>>
>> -----Original Message-----
>> From: Andy [mailto:zl1cop at qsl.net]
>> Sent: Friday, 22 April 2011 12:04 a.m.
>> To: 'Mike Barnes (ZL3TMB)'
>> Subject: RE: [TheList] APCO25
>>
>> "A simple P25 buzz warns of the police near by....."
>>
>> And then what?
>>
>>
>>
>> -----Original Message-----
>> From: Mike Barnes (ZL3TMB) [mailto:zl3tmb at ihug.co.nz]
>> Sent: Thursday, 21 April 2011 11:00 p.m.
>> To: thelist at radiowiki.org.nz; zl1cop at qsl.net
>> Subject: RE: [TheList] APCO25
>>
>>
>> Hmmmmm, so if I enter all these frequency as mobile inputs in my scanner
>> with a very poor antenna.
>> I've just created the best radar detector ever :)
>>
>> A simple P25 buzz warns of the police near by.....
>>
>> http://www.rsm.govt.nz/cms/pdf-library/resource-library/publications/pib-23/ 
>>
>> PIB23-Issue-6.pdf
>>
>> The simple ideas are the greatest.. :)
>>
>> Have fun.....
>>
>>
>> Andy wrote:
>>> Current state of play:
>>>
>>> Following freqs in the Auckland area observed as active with APCO P25
>>> trunking data:
>>>
>>> 141.1500
>>> 141.1750
>>> 141.2625
>>> 143.2750
>>> 143.3500
>>> 143.3625
>>> 143.3750
>>> 143.3875
>>> 143.4375
>>> 498.5125
>>> 498.5250
>>> 498.5625
>>> 498.6375
>>> 498.6625
>>> 498.6750
>>> 498.6875
>>> 498.7000
>>> 498.8125
>>> 498.9875
>>>
>>> cheers
>>>
>>
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