The WWVB 60 kHz carrier, which has a normal ERP of 70 kW, is reduced in power at the start of each UTC second by 17 dB (to 1.4 kW ERP). It is restored to full power some time during the second.

2010年3月1日 · WWVB continuously broadcasts digital time codes on a 60 kHz carrier that may serve as a stable frequency reference traceable to the national standard at NIST. The time codes are synchronized with the 60 kHz carrier and are broadcast continuously in two different formats at a rate of 1 bit per second using pulse width modulation (PWM) as well as ...

2010年2月11日 · The lowest frequency received by any of the other radios in your house is probably 530 kHz, the bottom of the AM broadcast band. Even that frequency is nearly 10 times higher than the WWVB signal. At 60 kHz, there isn't enough room on the signal (bandwidth) to carry a voice or any type of audio information.

2009年2月2日 · If our ears could hear the 60 kHz radio signal transmitted by radio station WWVB as a 1000 Hz tone, this is what it would sound like. This is a one minute sample of WWVB's radio signal recorded...

2010年3月2日 · WWVB went on the air on July 5, 1963, broadcasting a 5 kW signal on 60 kHz. This was later increased to 7 kW and then 13 kW, where it remained until December 1997.

2012年10月26日 · 时码代号：MSF 频率：60 kHz 发射功率：15 kW 所在地：英格兰坎布里亚郡 接收范围：1200 km 地理位置：北纬54° 55' , 西经03° 15'

2023年5月3日 · It may help to put a low-gain amplifier at the antenna (enough to drive a 60 kHz signal driving a shielded cable) to the remote amplifier chain. It also helps to look for WWVB signal at night when signal levels rise, and when local noise sources tend to be quieter.

Longwave radio station WWVB (60 KHz) transmits the time from Fort Collins Colorado in a slow digital format (1 bit per second). This is the same time (UTC) that WWV transmits (and WWVH in Hawaii). However, in addition to atomic clock time, WWVB also transmits the difference to the nearest 0.1 second between UTC and UT1.

2016年8月29日 · 60kHz Atomic Clock Receiver Kit with Loop Stick Antenna. The kit comes with the universal AM receiver board for 40-100kHz, a 60,003kHz crystal, a fine tuned 60kHz Antenna (60mm) with high Q-factor and high gain, and some male header pins. Antenna and crystal are not factory assembled.

2018年8月31日 · The 70 kW ERP signal transmitted from WWVB is a continuous 60 kHz carrier wave, the frequency of which is derived from a set of atomic clocks located at the transmitter site, yielding a frequency uncertainty of less than 1 part in 10 12.