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WWVB Antenna Configuration and Power
During normal operation WWVB transmits an effective radiated power of 70 kW from two antennas. For maintenance purposes, WWVB sometimes operates on a single antenna or reduced power. The table below reflects this information.
* indicates that an outage or outages occurred during this period, see the WWVB Broadcast Outage web page.
Official Notice: Commencing from 0000 Coordinated Universal Time (UTC) on April 7, 2024, the southern antenna of WWVB has been rendered non-operational due to damage sustained from wind gusts exceeding 90 MPH. Please be advised that WWVB continues to function at a diminished overall power, utilizing only its northern antenna.
Update 30 September 2024: The components necessary for the refurbishment of the southern antenna’s triatic are currently being manufactured and shipped. The projected timeline for the completion of these repairs is tentatively set for October 7, 2024. We would like to emphasize that this is an estimated timeline and may be subject to alterations based on a variety of factors. We greatly appreciate your understanding and patience during this process.
2023 Outages | 2022 Outages | 2021 Outages | 2020 Outages | 2019 Outages | 2018 Outages | 2017 Outages
| Date | MJD | Began (UTC) | Ended (UTC) | Antenna Configuration | Radiated Power (kW) |
|---|---|---|---|---|---|
| 7 April 2024 | 60407 | 0140 | ongoing | North | 30 kW |
| 20 March 2024 | 60389 | 0205 | 1321 | North | 30 kW |
| 25 - 26 February, 2024 | 60365 - 60366 | 0809 (25 Feb) | 1350 (26 Feb) | South | 30 kW |