Got Chirps? Whistles? and WWV

Take a moment to tune in at every 8 after the hour on WWV and 48 after the hour on WWVH transmitters. WWV, WWVH stations, HamSCI and NIST and investigating HF propagation.

The Characterization Signal will consist of a 45 second WAV file on minute 8 for WWV and minute 48 for WWVH.  Right now it is planned as a standard voice announcement, inserted into the broadcast chain as an audio file. 

This is an incredibly exciting opportunity for collaboration between Amateur Radio and the federal government’s lead physical science laboratory, NIST, and harkens back 100 years to the Fading Experiments coordinated between the then NBS and an early ARRL.

A full description of the Characterization Signal and audio files are available at

Updates on the efforts will be posted here at WWV ARC and also at the HamSCI website:  

WWV Frequencies [ MHz ]: 2.5; 5.0; 10.0; 15.0; 20.0 from Fort Collins, Colorado

WWVH Frequency: 2.5 MHz from Kauai, Hawaii






History of WWV:

Fast Solar Wind Bookends an Earth-Directed Graze | Space Weather News 12.01.2021

This week we have a partly Earth-directed solar storm sandwiched between two pockets of fast solar wind! The storm on its way will graze us to the south by December 3rd. NASA and NOAA prediction models disagree as to exactly when, but we can expect impact to be sometime between mid-day on December 2 and late December 3. This wide window doesn’t really matter all that much considering this solar storm is already preceded by some minor storming due to the first pocket of fast wind that is hitting now and will be followed by more! This means storming could occur from now until week’s end, especially at high latitudes. We have already jumped to solar storm levels and seen some gorgeous aurora at high latitudes over the past 24 hours and could do so again. As for mid-latitudes, the chances for aurora over the next few days may be sporadic, but conditions will look more favorable as the solar storm arrives. In addition to this activity at Earth, we have had some new active regions emerge on the Sun, which is good news for amateur radio operators. We even have a small chance for an M-class flare, although the possibility is still pretty remote. We will be monitoring the growth of these regions over the next few days in case they turn out to be substantial, but for now, solar flux is hovering near the low 90s. This means marginal to good radio propagation on Earth’s dayside. As for GPS reception, there may be issues near dawn and dusk and near aurora over the course of this week, so stay vigilant if you drive, fly safe if you are a UAV pilot, and calibrate your magnetometers often!

Get ready for 8 Meters?

Get ready for 8 Meters?

You may find yourself wandering along the bands one day in USB [ Upper Side Band ] on your way up to the “Magic Band” of 6 Meters and suddenly find yourself listening to a conversation [QSO ] around 40.660 MHz to 40.700 MHz. This band is new to Amateur Radio, and primarily known as the Industrial, Scientific, and Medical (ISM) band.

Croatia was recently added to a very limited list of countries with amateur radio operators with an experimental license for 8 Meter Band. Croatia becomes the fifth country, following Ireland, Slovenia, and South Africa. Lithuania has added spot frequencies, similar to 60 meters in the United States, for experimentation purposes. Find out more information from the blog of EI7GL.

-Credit to the and Southgate Amateur Radio News