[OZAPRS] RE: New wheels - dare I use anything that transmits?

Jack Chomley radio at irock.com.au
Wed Aug 27 21:58:30 EST 2008

At 09:18 PM 27/08/2008, Michael wrote:
>Speaking of interference from amateur transmissions to cars, 
>occasionally, I like playing "Revenge on the LIPD's".
>We all know the issues that LIPD's have caused to amateur repeaters, 
>personally I had to shift the VK5RPL 70cm repeater to a new 
>frequency pair that wasn't affected by industrial crane controls and 
>kids walkie talkies. Others have had to limit repeater access with CTCSS.
>I've since found that many car immobiliser/remote entry systems work 
>on 433.920 Mhz (within the LIPD band) and many won't work when the 
>area is blanketed with 50W on 433.920!
>There is nothing quite like sitting in the carpark of a supermarket 
>on a rainy day with the trusty dual band radio keyed up on 433.920 
>MHz and seeing how many people get frustrated and wet, trying to get 
>into their cars by remote control!  Sometimes, the remote entry is 
>part of an alarm system and entry into a vehicle (with the key in 
>the door) without disarming it will set off the alarm. Other cars, 
>especially European cars, have the anti-theft system "talk" to the 
>remote key fob, and when the cars security system can't talk to the 
>key fob when the ignition is turned, the car won't start.
>Of course, I ALWAYS identify with my callsign at the beginning of 
>each transmission and then again every ten minutes, as per the rules.
>I know, I know... it's childish, but I didn't make the decision to 
>put LIPD's into an already congested part of the spectrum... anyway, 
>I could be trying to legitimately access a repeater on 438.925 (-5 
>MHz offset)... well, that's my excuse and I'm sticking to it! (-:

Generating deliberate interference is NOT in the rules, besides LIPDs 
are helping Amateurs keep part of the 70cm band from being swallowed 
up by commercial interests, wanting to pay BIG money for UHF spectrum.
Complain to the ACMA, if you don't like it........... ;-)

73s  Jack VK4JRC

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