Tag Archives: WWV 25MHz

WWV seeking reception reports of 25 MHz broadcast

WWV’s transmitter building in Fort Collins, Colorado (2014)

(Source: WWV)

Current 25 MHz Broadcast Specifications

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: [email protected] (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

Note that the 25 MHz signal has traditionally used a vertically-polarized antenna and for about one year (between 2014-2015) with a discone antenna.

Please share your report with WWV–contact info above!

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WWV: experimental broadcasts on 25 MHz

WWV format

WWV format (Click to enlarge)

Want to catch WWV–the Fort Collins-based time station–on a frequency they haven’t used since 1977?

The National Institute for Standards and Technology (NIST) has sent out a press release stating that, as of April 4, 2014, WWV will resume broadcasting on 25 Mhz for a limited time.

Full details follow in their press release:

NOTICE: Experimental 25 MHz WWV Broadcast

As of Friday, April 4, 2014 WWV has resumed broadcasting on 25 MHz on a limited, experimental basis. The broadcast consists of the normal WWV signal heard on all other WWV frequencies, at the same level of accuracy.

Current 25 MHz Broadcast Specifications (subject to change):
Schedule: variable; as an experimental broadcast, the 25 MHz signal is not continuous. It will typically be on the air from approximately 1500 – 2100 UTC Mondays through Fridays, but may operate outside these hours as well. The broadcast may be interrupted or suspended without notice.

Radiated Power: varies; no more than 2500 W

Antenna: broadband monopole, coordinates: 40 deg. 40′ 50.8″N, 105 deg. 02′ 32.6″ W

Listener comments and reception reports may be emailed to: [email protected], or sent via postal mail to:

National Institute of Standards and Technology
Radio Station WWV
2000 E. County Rd. 58
Fort Collins, CO 80524

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