Howard Winter wrote: > Unfortunately in the UK, 433 is the only option - the other frequencies you mention aren't unlicenced here. And our 70cm Amateur band (on a Secondary basis) is > 430-440 only - I believe the USA goes up to 450? - and we can't use 431-432 within 100km (about 62 miles) from the centre of London - nobody has ever said why! Easy. That's the frequency of the remote control of the queens loo. Can't have that get jammed, now can we? -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist