On Fri, Sep 26, 2014 at 8:25 AM, Dr. David Kirkby (Kirkby Microwave Ltd) <drkir...@kirkbymicrowave.co.uk> wrote: > As I say, without stating the properties of the receiving antenna, > absolute power levels are not a sensible unit.
Indeed, there is an implicit assumption of a ~omnidirectional (hemisphere-pattern) antenna, with a typical effective gain around 1 dBi. Since the GPS signals come from all parts of the sky this is pretty much required, unless you're using fancy beam steering techniques. Perhaps slightly sloppy terminology but the meaning is clear, to me anyway :) Henry _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
