central locking not working on 4 motorhomes next to each other

[KayJohnFUB]

Why would the central locking on 4 motorhomes in a row on a camp site not be working? Could they have been disabled by a potential thief?

 

[Lynne Roy]

Suspicious

 

[Figaro]

Seems unlikely on a campsite ?
Have you noticed any alien spacecraft hovering overhead ?

HV power lines nearby ?

 

[pagey]

are there power lines above or close by or may be a mobile phone mast

 

[KayJohnFUB]

Thanks for replying, just had a look, no power lines (not sure about mobile phone mast-I’ll check with the warden in the morning) and whilst on the wine haven’t seen any Aliens yet but it’s early!!

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[Bessy765]

Are you all on or by the ehu point, could be a type of ground loop effect.

 

[jako999]

We have a mobile phone mast about 1/2 a mile away from us and every now and then they do some work and it takes out multiple peoples car remotes but then after a few days they all start working again, there is on in a car park in our town and if I park in an area the car won’t lock.

 

[KayJohnFUB]

Thank you, I’ll check on these suggestions in the morning, that’s supposing we‘re not beamed up in the meantime .

 

[PaulOH]

Well, you just reach for the driver's door and push down the button, then the passenger door and push down that button (if it were open) then push the bolt over on the hab door! Then no one gets in - except for nefarious reasons or if someone else has the keys and you left the bathroom window open after a shower!

 

[rod_vw]

We had a similar experience on the Sangatte camper parking a last week. I tried to unlock the VW T6 camper with the key fob and although the light of the fob flashed the central locking ignored it. The other key fob performed exactly the same!
There was a local tourist bus parked by us which I suspected had something to do with the problem.
At the time after the bus had gone I manually (door switch) unlocked the van with the windows open just in case it failed again then tried the remotes on the key fobs and everything worked OK. We've had no problem with the locking since. I have the computer software (VCDS) to scan the van but haven't scanned it since for errors.

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[Jane And Rog]

Car key fobs operate in the unlicensed Industrial Scientific and Medical (ISM) band which is also used by Bluetooth and lots of other consumer tech. Most tech using this bandwith is very resistant to interference because it’s a noisy area. However Car fobs are very low power and don’t need much to affect them. I’d be very surprised if the cell tower half a mile away was interfering with just four vans. More likely something local is causing the interference.
wifi can generate harmonic interference in this frequency range maybe a nearby van has a wonky mif. Microwave ovens can also generate interference. As the ISM bandwidth is unregulated a lot of hobbyist projects use it and often transmit at (relatively) high power over a large portion of the ism band. So: and vans nearby that look like they’ve got homemade electronics in them
r

 

[Pausim]

Perhaps someone is using a mobile signal booster. If the gain is too high there can be feedback between the receiving aerial and the boosted output aerial.

 

[Odd-no-more]

We had a problem with remotes when the button on our wireless doorbell stuck in. It doesn't take much to stop them working

 

[Bobbydaisy]

Mobile phone masts operate on a different band/frequency and are regulated strictly to operate within such by OFCOM , unlikely to be the problem. WiFi routers can generate harmonics that could interfere with remotes ,due to poor shielding/wiring, a more likely source of the problem.

 

[Spriddler]

Then no one gets in - except for nefarious reasons or if someone else has the keys and you left the bathroom window open after a shower!

Quite.

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[Sheddy]

Neighbours car key fob rings our wireless door bell repeater, bugger when he is on an early shift

 

[eddie]

Which is why you should never use wireless alarm sensors and having your alarm hooked into your central locking system via the OBDP (On Board Diagnostic Port) is stupid and non compliant with Thatcham

 

[pappajohn]

Usually microwave energy.
No, not the piddly little thing you cook with, radio transmission stations.
Used to get it all the time near fylingdales radar station near Whitby when I did breakdown recovery.
Recover them a few miles down the road and everything back to normal.

 

[Trevor Wbm]

99.9% probable it's radio interference from something as has been suggested. (When I was involved in rolling out Emergency Services radio, the new site on top of the Trafford Centre killed some cars remote locking over about a square mile.)