Interesting WWV Facts
The November issue of High Frequency Electronics includes a short article on WWV with some little-known facts (at least to me!) on the time- and frequency standard station. For exampe:
WWV began transmitting in 1923 on frequencies from 75 to 2000 kHz.
Telegraphic announcements were added in 1945, with phone announcements beginning in 1950.
When it first began [...]