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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) |
|---|---|---|---|---|---|
| 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 |