alt Hacker News> Modern smartphones are generally both more locked down and also don't come with an external antenna option.
There are USB On-the-Go compatible SDRs [1] that you can hook up to an Android phone that cost like $50 (don't know if there are any that would work with iOS though).
[1] https://www.nooelec.com/store/sdr/sdr-receivers/nesdr-nano-t... (this one doesn't support wifi frequencies, but this was off the top of my head)
Replies
ajdude • yesterday at 5:05 AM
Even if this could jam signals, which a sibling comment attests that it cannot, I wouldn't be surprised if it gets flagged by security if you try to bring it in and hook it up to your phone
The device you linked does not, and cannot, transmit RF.
Like a General Electric AM/FM clock radio from 1983, and also my purple bike: It jams nothing.