Now that I have a list of protocols and a general plan to transmit telemetry on the 20 meter Ham bands, how do I get “on the air”? This post will describe the transmitter hardware for the telemetry system. Generating Radio Frequency – There is a board for that. After a lot of searching an […]
What’s the frequency Kenneth? The big unknown for me, at least at the start, is how am I going to know where the balloon has traveled. I need to be able to send radio telemetry from the balloon back to the ground somehow. My stated project goal that the balloon be capable of global circumnavigations, […]
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 […]
