Propagation of 60KHZ RF
Propagation of 60KHZ RF
(OP)
I recently got a wrist watch that automaticly updates time by communicating with WWVB. Between the dates of 10-29-12
and 11-9-12 it did not recieve anything. Then skipped till 11-12-12, and so far every early morning it has be working fine.
Does anyone know why? Has WWVB been having problems? Solar activity or what?
and 11-9-12 it did not recieve anything. Then skipped till 11-12-12, and so far every early morning it has be working fine.
Does anyone know why? Has WWVB been having problems? Solar activity or what?





RE: Propagation of 60KHZ RF
I doubt that they have very many unannounced outages. It would be rare.
Also, if the positioning or orientation of the clock is just right (just wrong) it'll never ever get a signal. I assume they have some sort of loop stick antenna (ferrite rod, coil, with two nulls off the ends) but I've never confirmed this assumption.
RE: Propagation of 60KHZ RF
RE: Propagation of 60KHZ RF
http://www.nist.gov/pml/div688/grp40/wwvb-station-...