what could cause peoples key fobs not to work in our street. basically you cannot lock and unlock the vehicles with the key fob, or in the case of my D4 keyless entry. it seems to affect about 20-25 houses in our street once you are further up the street they start working again.
although the keyless entry and locking doesn't work on my D4 it will work with the fob unlike all the other cars
nothing has changed recently we can't see anything new that's being erected
Are you near a Military or Government facility?In Spain - 2018 F Pace - Down and out's Velar
In UK - Dare not say on this Forum
Gone - Lots of Lode Lane vehicles.
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19th Aug 2018 9:36 am
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
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Case for Mulder & Scully.
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19th Aug 2018 9:42 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10374
someones WiFi router or cordless phone gone faulty? Turn them all off at the mains and see if the fobs work again. If they do start working, turn them on a couple at a time
someone using Chinese ones ?
19th Aug 2018 9:52 am
kajtzu
Member Since: 11 Aug 2017
Location: Helsinki
Posts: 6577
WiFi should be on the 2.4 or 5 GHz band while fobs in Europe should be on the 433 MHz band for ISM. No way should these, ever, overlap.
If you’re adventurous, get a software defined radio (SDR) and a programmable DVB-T USB receiver and listen in on the frequencies.
19th Aug 2018 10:25 am
Redline
Member Since: 20 Jan 2018
Location: Warwickshire
Posts: 141
Could be a noisy electrical system somewhere. Any problem with radio either MW or FM?
You could contact Ofcom - they may do an rf inspection to identify the source. Could be bad news for someone though.Current : Discovery 4 HSE (2012 spec)
Current : BMW Z4 20i MSport
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19th Aug 2018 10:56 am
sasdiscos
Member Since: 22 Feb 2013
Location: Northants
Posts: 887
Garage up the road from me had loads of complaints, people coming in to fill up and not being able to get back in there cars, was mainly land rovers, it turned out to be the contactless system for credit cards.
Any shops near by?
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19th Aug 2018 10:58 am
dgardel
Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025
Do you see amateur radio antennas near your home?Discovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition
so here are the answers to the questions raised so far
no we do not live near any military bases
no the shops are far enough away and it works perfect outside the shops
there is no amateur radio antennas nearby
contacting Ofcom might be an idea will give it a go.it tends to happen for a week then goes away and a week later starts again.
people have reported it to the police but they are not interested.
there is a new housing estate going up but that is half a mile away
I think the Police have the power as do security services to Jam radio signals, required for Bomb disposal units etc.
Intelligence Services Act 1994 In Spain - 2018 F Pace - Down and out's Velar
In UK - Dare not say on this Forum
Gone - Lots of Lode Lane vehicles.
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19th Aug 2018 1:09 pm
Redline
Member Since: 20 Jan 2018
Location: Warwickshire
Posts: 141
It’s likely to be deliberate jamming. More likely to be a faulty fluorescent light fitting, motor or power distribution cable or transformer.Current : Discovery 4 HSE (2012 spec)
Current : BMW Z4 20i MSport
Current : BWM Z4 3.0SI Sport Auto
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19th Aug 2018 1:17 pm
Redline
Member Since: 20 Jan 2018
Location: Warwickshire
Posts: 141
Should read “isn’t likely to be...”
Doh. Too much of a rush to eat the bacon sarnie that had just arrived!Current : Discovery 4 HSE (2012 spec)
Current : BMW Z4 20i MSport
Current : BWM Z4 3.0SI Sport Auto
Previous : Freelander 2 HSE
19th Aug 2018 1:25 pm
dgardel
Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025
It’s sufficient a wide frequencies field analyser, 3 min job
But someone must own a field analyser Discovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition
house alarms can use the 433MHz band. Anyone installed one recently ?
21st Aug 2018 8:13 pm
Mole734
Member Since: 12 Aug 2016
Location: Derbyshire
Posts: 161
I had this, turned out to be a 'video sender'. on the reciveing unit it could send the infra red commands back to the sending unit using 433mhz. Thing is that when the sun was setting it interpreted this as a command and constantly transmitted blocking keys for 100yds
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