3 ms·
I think he was using MF and HF for most of his work, but I'm not sure[1]. The story about discovering higher frequencies remove the need for longer antennas la
by aidenn0 3y ago
I think he was using MF and HF for most of his work, but I'm not sure[1]. The story about discovering higher frequencies remove the need for longer antennas lat in his career seems garbled since the he discovered early on that longer antennas allowed for longer distance communication.
1: His first claimed transatlantic transmissions were definitely MF.
- AlbertCory 3y agoWikipedia says he was using "pulses" instead of "continuous wave" which we now use. So maybe the question about "frequency" doesn't even apply? idk
- aidenn0 3y agoProperly it was dampened waves. Pulses go into the antenna, but the antenna is resonant, so waves go out. A bit like hitting a tuning fork. Later on he used RLC resonant circuits for the same effect.
- aidenn0 3y agoToo late to edit, but per Wikipedia[1] once the quenched-spark transmitters were widespread, transoceanic transmissions were VLF and LF, marine were MF, and amateur was high MF (above 1.5MHz). 1: https://en.wikipedia.org/wiki/Spark-gap_transmitter#The_%22spark%22_era https://en.wikipedia.org/wiki/Spark-gap_transmitter#The_%22s...