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Actually, just being in possession of such a device in the US isn't legal. Whole FCC page on it with citations: https://www.fcc.gov/general/jammer-enforcement h

Actually, just being in possession of such a device in the US isn't legal. Whole FCC page on it with citations: https://www.fcc.gov/general/jammer-enforcement https://www.fcc.gov/general/jammer-enforcement This is probably an area where SDR's with send capability could in theory be prosecuted as a jamming device. Whether it's been interpreted that way or enforced ever is unknown to me. A purpose built device advertised as a jammer would absolutely be a problem. Oh also, the 1934 communications act is supposed to prohibit US/state governments from using such devices as well, but they've ignored the law. Some companies in the 2000's challenged it for use in their buildings and afaik lost the cases. My experience dates from that same time range when they were sort of accepted as de jure illegal but there wasn't de facto enforcement.... also networks use more bands now so a jammer covering more frequency ranges would be needed. back then they could do 3 ranges (850mhz-ish, 1900mhz-ish, 2100mhz-ish), now there would be way more like 3.7ghz down to 600mhz. Ignoring mmwave, that's not going to be in your bathroom.

amelius 9mo ago
> Actually, just being in possession of such a device in the US isn't legal. Wait, SDR devices are not legal in the US? That doesn't sound plausible. My "computerized legal advisor" says: > There’s no rule from the Federal Communications Commission (FCC) that forbids individuals or hobbyists from buying, importing, or owning SDR hardware in the United States. You can legally purchase and have them. > Radios that transmit need FCC equipment authorization (such as certification or Supplier’s Declaration of Conformity) before they can be marketed in the U.S. if they are capable of operating in ways that could cause interference. That’s primarily a manufacturer obligation, not something that restricts private ownership. > Owning a device is fine, but you must not transmit illegally. Sending signals on unauthorized frequencies or at unauthorized power levels can lead to fines, equipment seizure, and other penalties.
- kstrauser 9mo ago
  As with so many other things, intent matters. Owning lockpicks? Fine! Owning lockpicks when you're caught burgling a house? You're extra screwed. Owning an SDR? Fine! Owning an SDR and getting caught using it to illegally disrupt communications? You're extra screwed. Yes, you can absolutely own an SDR, and transmit with it on legal frequencies. If you're busted using it to break the law, then it's strong evidence that you went out of your way to deliberately, premeditatedly break it, and that makes for a bad day.
  - kelnos 9mo ago
    The person upthread said, unqualified: > Actually, just being in possession of such a device in the US isn't legal. Their view was that it isn't legal to own, regardless of context or intent. That's what GP was arguing against.
    - kstrauser 9mo ago
      Yeah. I was reassuring the parent of my post that they’re right, it’s legal to own an SDR. You can still get in extra trouble for breaking the law with it, but it’s perfect fine to have and use one otherwise.
      - amelius 9mo ago
        Sure, but my original question was what happens if two people are caught with an SDR unit, and authorities can't prove who (of the two people) used their unit to do the jamming.
        kstrauser 9mo ago
        Not a lawyer. My guess: if they’re together, they’d both be charged, as if they robbed a store as a team. If they’re not, neither would be charged, as each would have a brilliant defense.
        joecool1029 9mo ago
        Nobody clicks the link and reads… they just use the slop generators, now I’m stuck having to do tard wrangling: > Sections 510 - allows for seizure of unlawful equipment (47 U.S.C. § 510). https://www.law.cornell.edu/uscode/text/47/510 https://www.law.cornell.edu/uscode/text/47/510 > (a) Violation with willful and knowing intent Any electronic, electromagnetic, radio frequency, or similar device, or component thereof, used, sent, carried, manufactured, assembled, possessed, offered for sale, sold, or advertised with willful and knowing intent to violate section 301 or 302a of this title, or rules prescribed by the Commission under such sections, may be seized and forfeited to the United States. Guess what? You don’t have to be a fucking lawyer to know how to read.

amelius 9mo ago

> Actually, just being in possession of such a device in the US isn't legal. Wait, SDR devices are not legal in the US? That doesn't sound plausible. My "computerized legal advisor" says: > There’s no rule from the Federal Communications Commission (FCC) that forbids individuals or hobbyists from buying, importing, or owning SDR hardware in the United States. You can legally purchase and have them. > Radios that transmit need FCC equipment authorization (such as certification or Supplier’s Declaration of Conformity) before they can be marketed in the U.S. if they are capable of operating in ways that could cause interference. That’s primarily a manufacturer obligation, not something that restricts private ownership. > Owning a device is fine, but you must not transmit illegally. Sending signals on unauthorized frequencies or at unauthorized power levels can lead to fines, equipment seizure, and other penalties.

kstrauser 9mo ago
As with so many other things, intent matters. Owning lockpicks? Fine! Owning lockpicks when you're caught burgling a house? You're extra screwed. Owning an SDR? Fine! Owning an SDR and getting caught using it to illegally disrupt communications? You're extra screwed. Yes, you can absolutely own an SDR, and transmit with it on legal frequencies. If you're busted using it to break the law, then it's strong evidence that you went out of your way to deliberately, premeditatedly break it, and that makes for a bad day.
- kelnos 9mo ago
  The person upthread said, unqualified: > Actually, just being in possession of such a device in the US isn't legal. Their view was that it isn't legal to own, regardless of context or intent. That's what GP was arguing against.
  - kstrauser 9mo ago
    Yeah. I was reassuring the parent of my post that they’re right, it’s legal to own an SDR. You can still get in extra trouble for breaking the law with it, but it’s perfect fine to have and use one otherwise.
    - amelius 9mo ago
      Sure, but my original question was what happens if two people are caught with an SDR unit, and authorities can't prove who (of the two people) used their unit to do the jamming.
      - kstrauser 9mo ago
        Not a lawyer. My guess: if they’re together, they’d both be charged, as if they robbed a store as a team. If they’re not, neither would be charged, as each would have a brilliant defense.
        joecool1029 9mo ago
        Nobody clicks the link and reads… they just use the slop generators, now I’m stuck having to do tard wrangling: > Sections 510 - allows for seizure of unlawful equipment (47 U.S.C. § 510). https://www.law.cornell.edu/uscode/text/47/510 https://www.law.cornell.edu/uscode/text/47/510 > (a) Violation with willful and knowing intent Any electronic, electromagnetic, radio frequency, or similar device, or component thereof, used, sent, carried, manufactured, assembled, possessed, offered for sale, sold, or advertised with willful and knowing intent to violate section 301 or 302a of this title, or rules prescribed by the Commission under such sections, may be seized and forfeited to the United States. Guess what? You don’t have to be a fucking lawyer to know how to read.