Differences between version 2 and previous revision of TimeSources.
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| Newer page: | version 2 | Last edited on Thursday, December 27, 2012 3:36:20 pm | by AristotlePagaltzis | Revert |
| Older page: | version 1 | Last edited on Thursday, December 27, 2012 3:25:40 pm | by AristotlePagaltzis | Revert |
@@ -13,13 +13,13 @@
If you require better accuracy than [GPS] can provide, OmniSTAR provides [GPS] and GLONASS correction data via a worldwide network of geostationary satellites and reference stations.
!! SW Radio
-It might be possible to receive [the 5, 10 and 15 MHz signals broadcast from NIST's WWVH facility in Hawaii|http://www.nist.gov/pml/div688/grp40/wwv_format.cfm]. WWVH continuously broadcasts a time code on a 100-Hz subcarrier. The time code presents UTC(NIST) information [in Binary Coded Decimal (
BCD)
at a rate of 1 pulse per second.|WikiPedia:WWV_(radio_station)#Broadcast_format]
+It might be possible to receive [the 5, 10 and 15 MHz signals broadcast from NIST's WWVH facility in Hawaii|http://www.nist.gov/pml/div688/grp40/wwv_format.cfm]. WWVH continuously broadcasts a time code on a 100-Hz subcarrier. The time code presents UTC(NIST) information in
[BCD]
at a rate of 1 pulse per second. (See [broadcast format
|WikiPedia:WWV_(radio_station)#Broadcast_format].)
!! FM Radio
Radio New Zealand broadcasts UTC(MSL) time signals on many of it's stations every hour. They consist of six “pips” of 1000 Hz tone, at one second intervals, the beginning of each pip marking the exact second. When a pip marks the exact hour, its length is doubled. When a leap second is inserted seven pips are broadcast.
!! Digital TV
Freeview transmits local time information using DVB-T at least once every 15 seconds with an accuracy of ±2s.
