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WWVB Antenna Configuration and Power
As of 18 August 2026, maintenance activities will affect the antenna configuration of WWVB.
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.
2025 Outages | 2024 Outages | 2023 Outages | 2022 Outages | 2021 Outages | 2020 Outages | 2019 Outages | 2018 Outages
| Date | MJD | Began (UTC) | Ended (UTC) | Antenna Configuration | Radiated Power (kW) |
|---|---|---|---|---|---|
| 18 August 2026 | 61270 | 1350 | 2045 | South | 30 kW |
| 14 July 2026 | 61235 | 1555 | 1623 | North | 30 kW |
| 01 June 2026 | 61192 | 1022 | 1347 | South | 30 kW |
| 27 May 2026 | 61187 | 2313 | 2346 | South | 30 kW |
| 13 March 2026 | 61112 | 0354 | 0953 | South | 30 kW |
| 23 February 2026 | 61094 | 1330 | Dual | 70 kW | |
| 21 February 2026 | 61092 | 0504 | North | 30 kW |