[Amps] TX site RFI and automobiles

[la7sl Nils Petter]

In Fredrikstad--a nearby city here,- there was a 500KW SW TX using a large 
logperiodic rotatable
array. When they were beaming towards the road nearby - all kinds of strange 
things
happened to cars passing by. This was some years ago and electronics in cars 
were just at the birth.
My friend had a car where the only electronic thing onboard was a windscreen 
wiper controller.
And this went crazy when he got "struck by the main lobe" at considerable 
distance.
The car was japanese....and the controller was made in Japan....
Other stories heard include direction lights, transistor ignition systems 
and the like. But RF fields were
tremendous !!  Street lights were often modulated quite far away :-) and in 
some rooms at the hospital
a couple of kilometres away lights were flickering when switched off. I 
stayed there a few nights and that
light over the bed kind of made me feel ok :-)  I thrive in good RF-fields 
:-)
Peter
----- Original Message ----- 
From: "John Lyles" <jtml at losalamos.com>
To: <amps at contesting.com>
Sent: Wednesday, March 31, 2010 11:10 PM
Subject: [Amps] TX site RFI and automobiles


> At the scenic overlook on Sandia Crest, over Albuquerque, there is a 
> warning sign about the RFI levels affecting car alarms. In 2008, I
> drove my Jetta there with friends, and the keyfob was unable to unlock the 
> car due to the RF levels, manual key worked of course.
> About 200 feet from the parking lot are short towers with radiators for 
> analog ch 2, 4, 5, 7 and 13, plus UHF stations. Now there are only 7 and 
> 13 on VHF at lower TX power
> while the rest moved to UHF allocations. I haven't been back to see if my 
> key works, but since key fob is on 433 MHz or so, I imagine it will get 
> 'blanketing' interference still.
>
> BTW, there is a LOT of speculation floating around about Toyota engine 
> computer and RFI, and that's all it is .... speculation, until proven on a 
> test range. I wouldn't put any money
> on that being the problem however. My 2003 Tacoma is drive by wire, too, a 
> steel wire that goes from the pedal to the throttle body.....
>
> 73
> John
> K5PRO
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> 
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