SPREAD SPECTRUM RADIO MODULES & ICs The New Zealand agent is Trade Tech, ph (09) 478 2323 The manufacturer is Gran Jansen www.gran-jansen.com Chips with full tx/rx functionality are about $NZ22 in small quantity and not much less in volume. A module complete with PIC etc on board is about $NZ250 in 1's and about $150 in volume. Loud horns and mirrors on corners may be cheaper and/or easier :-) Out of NZ as a guide $NZ1 ~~ $US0.56 Range is unknown but appears to be much less than I recalled - may be only 100's of metres. How hard it is to add gain is unknown. See their website (I haven't yet) regards Russell McMahon -----Original Message----- From: Les Gruebner To: apptech@CLEAR.NET.NZ Date: Friday, 13 August 1999 09:02 Subject: 1km plus modules