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Did you know that WWV broadcasts time signals on 25.000 MHz?
For 30+ years, the National Institute for Standards and Time (NIST) has NOT had an active transmitter on the air at 25 Mhz.
This has changed starting in 2014 on an "experimental basis" and now in July 2017 will join the 2.5, 5, 10, 15 and 20 MHz WWV signals full time.
The NIST time signals are helpful in understanding propagation conditions on HF as well as being a stable source tune a receiver against plus figure out what time it is. More detail is available on the NIST website following this notice.
A recent change over to a circular polarized turnstile antenna which may be better than the monopole antenna that started to get tested a few years ago for 25 MHz and should provide a great monitoring target for those interested.
Located in Fort Collins, Colorado, WWV is operated by the National Institute of Standards and Technology (NIST). WWV has invited listeners’ comments and reports on its 25-MHz signal.
As of 2042 UTC 7 July 2017 the 25 MHz broadcast is now on a turnstile antenna with circular polarization and will remain in this configuration until after the solar eclipse on 21 Aug 2017. Signal reports are requested.
Schedule: typically continuous. As an experimental broadcast, the 25 MHz signal may be interrupted or suspended without notice.
Radiated Power: 2.0 kW
Antenna: Experimental Turnstile
Listener comments and reception reports may be emailed to: firstname.lastname@example.org (link sends e-mail), or sent via postal mail to:
National Institute of Standards and Technology
Radio Station WWV
2000 E. County Rd. 58
Fort Collins, CO 80524