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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.
2024 Outages | 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) |
|---|---|---|---|---|---|
| 18 December 2025 | 61027 | 0228 | 0316 | South | 30 kW |
| 18 December 2025 | 61027 | 1205 | Dual | 70 kW | |
| 17 December 2025 | 61026 | 2322 | South | 30 kW | |
| 14 August 2025 | 60901 | 2200 | 2222 | South | 30 kW |
| 10 August 2025 | 60897 | 0536 | 1326 | North | 30 kW |