Re: 37. Can you listen on the wireless alarm frequencies?

["Roger" <rumble@xxxxxxxxxxxxxxxxx>]

> Listen to you car key transmission who operate on 434 MHz and see if
> it is a "burst" or a permanent transmission..
There are bands that require strict occupancy rules. Equipment can only be
sold in countries that use those frequencies that abide by the standards.
These standards exist for that reason. 868MHz is one such band that has
strict usage rules. Any equipment using the band CANNOT transmit on that
band for more than 1% of the time. This allows upto 100 other pieces of
equipment in the immediate vicinity to use the same band. There are several
wireless alarms using this band at the moment and they have superb RFI
detection and jamming signal algorithms.