Re: [Karlnet] Interference problem - help, out of ideas!

["Caleb Carroll" <karlnet@pathcom.ca>]

>Car alarm, some cheap taiwanese car alarms interfere a lot. Had same 
>problem here, only solution - lower antennas behind roof corners so there 
>isnt direct line of sight between them.


Viper Car alarms use 2.4GHz but the spectrum they use is fairly narrow.

I have an older 2.4GHz Panasonic Giga-Range phone manufactured back in 1999 
that is horrible for interference...

- it transmits at around 36dBm (4 Watts) ERP.
- it uses the entire spectrum from 2400 to 2483MHz (looks like a CW)
- really crappy filters or no filters at all because there are sidelobes far 
into both sides of the licensed spectrum outside 2400-2483MHz.