William Unruh <[email protected]> wrote: > On 2014-04-27, Rob <[email protected]> wrote: >> [email protected] <[email protected]> wrote: >>>> The listeners should enjoy a smooth reception while driving around. >>>> So of course there should be no time lag between the modulation signals >>>> of the different transmitters. Experts in the field tell us we should >>>> be within 12us. >>> >>> Unless I fat fingered the calculator, that means the difference in distance >>> between transmitters relative to the receiver can be no more than 3.6 km. >>> >>> 300 meters per microsecond; it is the law... >> >> The goal is not to have 12us difference in arrival time, but to be >> within 12us for transmission time. > > Why not within 12 psec? Ie, what is the reason for this requirement? > And I thought this thread started with 1ms.
I have hijacked this thread that was started by someone else who asked if "Can NTP sync within 1ms". As usual on usenet, after some postings the topic drifted away. The 12us figure has been mentioned by two independent persons that are experts in the field of co-channel diversity networks and have implemented such networks in the past for professional purposes. _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
