In article ,
Andrew Gabriel wrote:
In some areas, wireless communication of this type is starting
to become unusable because it's reaching saturation. On Radio 4
today, there was an interview with one of the car breakdown
companies, and they are now getting rapidly increasing numbers
of calls for cars which can't be unlocked in some car parks,
because the keyfob transmitter signal is drowned out.

The remote on my old Rover SD1 - part of an alarm/immobiliser fitted by
myself some 15 years ago - does indeed sometimes 'lock up' for no apparent
reason. It's an AM RF type. Luckily, I have an external disable key switch
on it.

Never had a problem with the 'new' car.

--
*Honk if you love peace and quiet.

Dave Plowman London SW
To e-mail, change noise into sound.