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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.

2022 Outages | 2021 Outages2020 Outages2019 Outages | 2018 Outages | 2017 Outages 

Date MJD Began (UTC) Ended (UTC) Antenna Configuration

Radiated Power (kW)

11 September 2023 60198 1516 2112 South 30 kW
25 August 2023 60181 2034 2216 North 30 kW
15 August 2023 60171 0255 1240 South 30 kW
01 August 2023 60157 0257 0511 Dual 42 kW
01 August 2023 60157 0207 0257 North 30 kW
27 July 2023 60152 0430 1255 North 30 kW
22 July 2023 60147 0144 0233 South 30 kW
22 July 2023 60147 0120 0134 South 25 kW
21 July 2023 60146 1531 1751 South 30 kW
14 July 2023 60139 1444 1727 North 30 kW
07 July 2023 60132 1507 1909 North 30 kW
26 June 2023 60121 1505 2048 North 30 kW
20 June 2023 60115 1548 1759 North 30 kW
31 May 2023 60095 1728 1844 South 30 kW
09 May 2023 60073 1434 1706 South 30 kW
19 April 2023 60053 2152 2224 North 30 kW 
Created December 5, 2016, Updated September 11, 2023