Comment by SOLAR_FIELDS
1 day ago
Not knowing much about radio hardware your post made me wonder why we don’t see too many options for radios that can do this outside the military. Is it because there’s rarely a practical use case outside of avoiding jamming? Or is the hardware to do so prohibitively expensive?
There is actually a lot of fairly inexpensive SDR hardware aimed at amateurs, and other ways to do cheap packet radio. But outside the amateur radio community you might not hear about it because you need a license to transmit.
Radio spectrum is licensed, and licenses are very expensive.
There are several bands for Amateur radio in US/EU/AU, but it is explicitly forbidden to use any kind of encryption on them. So no one can sell devices that use encryption on those bands.
And I doubt Iran was friendly to amateur radio in the first place. E.g. in USSR it was crazy to think of any non-approved radio.
I mean who can stop you from transmitting anything you want at any frequency? Licenses etc only matter when the rule of law is a thing.
It's trivially easy to watch the entire radio frequency range at once and triangulate the location of any transmission. If someone more powerful than you wants to stop you, they can.
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Parent was asking about jamming protection (frequency-hopping, encryption) devices.
Once you transmitted, you’re exposed so the authority can find you sooner or later
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