Intruder at the top of the 20 meter amateur band?

Re:Intruder at the top of the 20 meter amateur band? by mikewarot on Monday January 11, 2021 @06:27PM (#25739597)

Morality and outrage aside, we know where they are, and the format they are using, and they are in a fixed site. The real question is:

How can we:

1> receive and regenerate the source bit stream

2> use that to exactly recreate the transmitted signal

3> synchronized with that signal, and

4> then use it to cancel out the interference?

[ Parent | on HN ]

Re:Intruder at the top of the 20 meter amateur band? by meetups323 on Monday January 11, 2021 @08:32PM (#25741125)

"Hello FTC I'd like a license to intentionally destructively interfere with a separate, licensed, broadcast -- which form should I fill out?"

[ Parent | on HN ]

Re:Intruder at the top of the 20 meter amateur band? by asudosandwich on Monday January 11, 2021 @10:56PM (#25742078)

That depends, are you a hobbyist or lobbyist?

[ Parent | on HN ]

Re:Intruder at the top of the 20 meter amateur band? by mikewarot on Tuesday January 12, 2021 @02:41AM (#25743580)

To clarify... I'm not proposing to jam the signal, just cancel it out (in the receive channel) so we can listen without the annoyance.

With SDR gear, it should be possible to null out most, if not all of the signal, once the modulation format is known.

[ Parent | on HN ]

Re:Intruder at the top of the 20 meter amateur band? by analog31 on Monday January 11, 2021 @08:54PM (#25741268)

Jamming is illegal.

[ Parent | on HN ]