In the early days of radio, hams used Morse code to communicate over radio. The speed of sending Morse code, like the speed of a typist, depends on the skill of the operator. Typical Morse speeds might be around 13-20 words a minute. Having to send a commonly used phrase like “Can you change frequency […]
WSPR How low can you go? (And still be heard) As part of my Flying Squirrel project, I wanted to know, “Would my little Si3551A based telemetry transmitter,sending WSPR, ever be heard by anyone?” So I conducted the following test. I configured the Radio gear to send the absolute minimum signal possible, on the 20m […]