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: wwv@nist.gov, 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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One Response to WWV: experimental broadcasts on 25 MHz

  1. James Heck, W7JVH says:

    My QTH is Sun Lakes in southeast Phoenix metro area.
    Receiver FT100D, antenna dipoles, common feed, 6,10,15,17,20 meters

    I have preset memories for all WWV frequencies
    Reception report: 5/16/2014, 9:25pm local time, 04:25 UTC [5/17/2014]
    2.5 MHz S8-9 only Bolder
    5.0 MHz S8-9 only Bolder
    10.0 MHz S-9 both WWVH and WWV
    15.0 MHz S-9 both WWVH and WWV
    20.0 MHz S-7 only WWV
    25.0 MHz S-0 to 3 WWV. Had to use LSB because of interference from cxr at 25.00262MHz

    I thought it was remarkable that propagation between Bolder and Phoenix was supported at 20 and 25 MHz this late in the day. Perhaps Es and not F layer
    I have monitored WWV and WWVH transmissions since 1958 [56 years] when I was given a sw radio by my Dad. When I leaved in Ecuador, we used WWV to keep HCJB’s time tone and automation system on time. Today my Casio Wave Captor watch keeps right on time as it locks on to the Bolder VLF signal at 12mn every night. I hope WWV will continue it’s radio service of time and real time radio propagation testing
    Regards, Jim Heck, W7JVH

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