5000m is not the length of the antenna but the amount of wire used on the antenna loading coil to make a “short” antenna resonate on very low frequency’s
licensed hams in the US can also use stuff in the hundred khz range, but are restricted by *radiator length* and i think eirp has to be under 1W but the FCC assures me there’s literally no way an amateur can feed an antenna on these freqs with any amount of power that would come close to 1W EIRP.
If i made one, too, would we just do morse, or something with fldigi, or what?
From what i can calculate 5000m dipole gives a frequency output of 27,056.269 Hz
https://codingace.net/physics/dipole_antenna_frequency.html
5000m is not the length of the antenna but the amount of wire used on the antenna loading coil to make a “short” antenna resonate on very low frequency’s
https://en.wikipedia.org/wiki/Loading_coil
@einfach_orangensaft @BeigeAgenda yeah but / and it’s like 1/4 wave on 8khz (very roughly). more like 1/3rd wave.
licensed hams in the US can also use stuff in the hundred khz range, but are restricted by *radiator length* and i think eirp has to be under 1W but the FCC assures me there’s literally no way an amateur can feed an antenna on these freqs with any amount of power that would come close to 1W EIRP.
If i made one, too, would we just do morse, or something with fldigi, or what?
Well how about a very low speed version of lemmy based on JS8call