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SQ5BPF notes

radio, electronics, security, silly hacks

Month: November 2020

Posted on 2020-11-30

Linksys LGS318 serial console pinout

Linksys LGS318 serial console pinout:

Continue reading “Linksys LGS318 serial console pinout”

Posted on 2020-11-272020-11-27

Etherify 3 and 4

I’ve added two etherify articles to the Soft TEMPEST series, one showing an exceptionally strong signal radiated from a raspberry pi 4b, and another showing that regular ethernet  hardware can also be used.

Please see:

Etherify – bringing the ether back to ethernet

Etherify 3 – the PI 4’s dirty little secret

Etherify 4 – back to earth with “normal” ethernet hardware

Posted on 2020-11-162020-11-16

Sonify

I’ve published Sonify. This is a script to transmit data via ultrasound Morse code.  Please see: Sonify – transmitting data via ultrasound morse code

This is another article in the Soft TEMPEST series. Please see also:

Etherify – bringing the ether back to ethernet

Posted on 2020-11-12

Moxon antenna for 125MHz

I’ve always wanted to make a Moxon antenna, but didn’t have an excuse to do so. Recently i needed a very lightweight directional antenna for Etherify with not so much gain, but considerable F/B, so i finally had the excuse i needed.

Continue reading “Moxon antenna for 125MHz”

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Articles

  • Etherify – bringing the ether back to ethernet
  • Sonify – transmitting data via ultrasound morse code
  • Etherify 3 – the PI 4’s dirty little secret
  • Etherify 4 – back to earth with “normal” ethernet hardware
  • Etherify 5 – switching the switches

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