Burt I see that those are all LA stations. Curious if anyone knows of central or eastern US stations that would be gps locked. Thanks
On Thu, Oct 13, 2011 at 1:13 PM, Charles P. Steinmetz < [email protected]> wrote: > Burt wrote: > > There are some AM broadcast stations in the U.S. that are GPS referenced. >> >> Supposedly being GPS locked would allow receivers that are GPS locked to >> lock up faster and stay locked better. So far I don't know of a single IBOC >> receiver that has the capability of being GPS referenced >> >> while it would be simple enough to GPS lock/reference an AM broadcast >> transmitter, this may not always be desirable. Having two co-channeled >> stations precisely on or very near the same frequency, even though they may >> be thousands of miles apart, can have serious fade issues. If they are >> exactly on the same frequency they can cause deep nulls in their coverage >> depending on the relative signal strengths. >> > > I believe the argument that was advanced for better reception through > GPS-locking had to do with improving nighttime skywave reception. So the > argument went, locking the carriers of co-frequency stations would prevent > fast fading (beating). Instead, you would get only long fades due to > atmospheric changes. I'm not sure how much of an advantage that would be, > in practice, but it shouldn't mess up local coverage (which is all the FCC > cares about). > > Best regards, > > Charles > > > > > > > > > > ______________________________**_________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
