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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.
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) |
|---|---|---|---|---|---|
| 03 September 2026 | 61286 | - | 2040 | Dual | 70 kW |
| 19 August 2026 | 61271 | 1508 | - | South | 30 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 |