cheers for that sparkman ... i was thinking of trying some sort of 433mhz sniffer to wifi serial setup..and hook up a 70cm coliner antenna to the radio with a bit of filtering and narrow the band down and see what is out there that can be used in a local (mesh) of sensors.. i turned my 70cm ham radio and tuned it down to 433.92 and there is a load of traffic out there .. how many are remote weather sensors same with 315mhz ...could be handy in mapping local climate hotspots and microclimates.....