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Old 07-08-2020, 07:55 PM   #20
Crazy Dazz
FF.Com.Au Hardcore
 
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,870
Default Re: Shed Burglar Alarm Recommendations Please

Quote:
Originally Posted by aussiblue View Post
Well I have found what is causing the false triggering.

Rather than build an RF sniffer i decided that I would walk around in my shed with my handheld radio scanner testing at the frequencies commonly used for wireless alarm systems (bonus discovery so my radio scanner still has a use after all). Tuned to 315 Mhz it quickly found this: https://www.repco.com.au/en/product-...tarter-2400amp , my Repco 2400 Jump Starter, emitting a strong signal from 310Mhz to 315Mhz and slightly beyond. Even at 5Mhz their RFI albeit not as strong. This is with it NOT plugged in and being charged just "passively" (or not so much it seems) sitting there.
That's very strange.
In all the one's I've had, there was a hard on/off dial/switch, that physically disconnected the battery. In that mode they were just batteries.
I can only assume that in yours something is permanently live. At a guess, maybe this : "The low voltage warning system activates automatically"

Assuming yours has a master on/off, you might want to rewire it.

Or try storing it inside a steel cabinet.
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