4 ms·
Wow, I wonder if that’s really for a two mile wave or if it’s coiled to really be far bigger.
by aksss 6y ago
Wow, I wonder if that’s really for a two mile wave or if it’s coiled to really be far bigger.
- xxpor 6y agoAlmost certainly coiled, where "coiled" might be using the earth itself as half of a capacitor: https://en.m.wikipedia.org/wiki/Jim_Creek_Naval_Radio_Station https://en.m.wikipedia.org/wiki/Jim_Creek_Naval_Radio_Statio...
- ghaff 6y agoThere's at least one other US Navy VLF station as well in Cutler Maine. A few countries have lower frequency ELF transmitters, but the US abandoned its facility.
- madengr 6y agoThe sub comms are at 25 kHz, which is 3000m at 1/4 wavelength. So 2 miles makes sense for a 1/4 wave monopole with the Earth as a counterpoise.
- opwieurposiu 6y agoThe VLF land stations are on 24.8 kHz, which is 7.4miles wavelength. The two mile antenna is probably a 1/4 wave dipole.