From: coderman <coderman@gmail.com>
   Sbject: Re: [tor-talk] Using SDR
   On 2/5/16, Sean Lynch <[1]seanl@literati.org> wrote:
   > The older, lower-tech version of this trick is to use a high-gain
   antenna
   > like the Cantenna or a Yagi to use a public wifi AP from a stealthy,
   Initially, I was confused about this.  To me, a "Cantenna" was
   Heathkit's name (in about 1970 or so) for a dummy-load built from a
   1 gallon paint can with a non-inductive resistor inside, immersed in
   transformer oil, capable of dissipating 1 Kw or so.
   Showing my age.
   Now, on Google-search, I see it as an antenna built with a tin can.
           Jim Bell

References

   1. mailto:seanl@literati.org