5 ms·
Not really. It uses 2MHz band, with the wavelength of around 160m. This means that it's easy to receive via a ferrite bar antenna but hard to transmit. You nee
by cyberax 1mo ago
Not really. It uses 2MHz band, with the wavelength of around 160m.
This means that it's easy to receive via a ferrite bar antenna but hard to transmit. You need an antenna of at least around 40m size for that to be efficient.
- lstodd 1mo agoEven a 160m guy-wire tower is cheap. 40m.. my friend installed 32m one just to have better internets, not exactly out of pocket cash, but nothing compared to say swapping a car.
- cyberax 1mo agoSure, but such an antenna will be extremely conspicuous and easy to triangulate. You can't install it covertly. Meanwhile, GPS can be jammed or spoofed with a briefcase-sized device for a couple of kilometers around you.
- lstodd 1mo agoI thought we were talking about how eLoran is cheap enough. But if you are about jamming, well. Either discontinue AIS/ADS-B or directed VHF jammers are not that conspicious. Not even a PESA, 60s tech.
- KaiserPro 1mo agoyes, but trying to pump 25kw through that without it being obvious is a lot harder.