there was a follow story where the reveal the source of the problem.
https://www.cbc.ca/news/canada/calgary/carstairs-key-fob-mystery-solved-grocery-store-1.5003043
turns out it was a remote car starter stuck on transmit, at least that
is what Canada's equivalent of the FCC reported.
cheers, Graham ve3gtc
On 2019-02-05 17:48:02, Don Kirk wrote:
An easy alternative to a full blown spectrum analyzer is a chesp ($25)
RTL-SDR dongle receiver plugged into a laptop with portable directional
antenna. Full coverage from 25Mhz to 1.7 GHz. Easy to view the key fob
frequencies with this setup. I use this type system all the time with an
additional HF upconverter for tracking down MF and HF RFI.
73,
Don wd8dsb
On Tue, Feb 5, 2019 at 12:20 PM Stephanie WX3K via RFI <rfi@contesting.com>
wrote:
Someone with a spectrum analyzer and direction antenna gear can help find
the source(s)
Stephanie
On Feb 5, 2019, at 11:21 AM, Steve Sacco NN4X <nn4x@embarqmail.com>
wrote:
Interesting mystery...
https://www.cbc.ca/news/canada/calgary/carstairs-westview-co-op-grocery-car-key-fob-1.4999558
--
Steve Sacco
NN4X
Narcoossee, FL
EL98jh
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