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[HCDX] WWV 25 MHz back on the air.
WWVâs 25 MHz Signal Back on the Air
TAGS: air, daily basis, dean lewis, Fort Collins, listeners, meter
propagation, MHz signal, NIST, old times, Propagation Beacons, standards,
technology, youtube
04/07/2014
WWV silenced its 25 MHz signal in 1977, but itâs back on the air âfor old
timesâ sakeâ â officially on an âexperimental basis.â Resurrecting the
long-dormant standard time outlet operated by the National Institutes of
Standards and Technology (NIST) was Matt Deutch, N0RGT, the Lead
Electrical Engineer at WWV. It all came about after Dean Lewis, W9WGV,
lamented the loss of the 25 MHz signal in an e-mail to Deutch, who
surprised him by subsequently putting the signal back on the air on April
4 for about 3-1/2 hours.
A listener in Scotland posted his reception of the WWV 25 MHz signal on
YouTube.
WWV is running another 25 MHz test today (April 7), which began at about
1530 UTC. âMatt promises the signal to be available for 24 hours,â said
Lewis. âMembers and listeners might be interested in hearing this historic
event.â
Lewis said heâd told Deutch that since 10 meter propagation has been so
good at this point in Cycle 24, and he uses the various WWV frequencies as
propagation beacons on a daily basis.
âHe responded that âfor old timesâ sake,â theyâd put the [25 MHz] signal
back on the air for a while. I assumed, of course, that he was kidding,
and so I didnât check. Matt wasnât kidding!â
NIST said the 25 MHz broadcast consists of the normal WWV signal heard on
all other WWV frequencies, at the same level of accuracy. The transmitter
in Fort Collins, Colorado, puts out 2500 W into a âbroadband monopole.â
WWV has invited listenersâ comments and signal reports.
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