Monopole antennas (a rod perpendicular to a ground plane)  are usually
   tuned (sized in length) to be either 1/4 of a wavelength of the rf
   being transmitted/received, or 5/8 wave.
          Jim Bell
   On Thursday, March 19, 2015 6:04 AM, Alfie John <alfiej@fastmail.fm>
   wrote:
   On Thu, Mar 19, 2015, at 07:12 PM, Troy Etulain wrote:
   > It would be helpful to know what the units of measurement are on
   > the side.
   I'm at home now so can't give you measurements based on the size of the
   tiles vs the device from the video. I'll be in on Monday and update the
   thread... but off the cuff I'd say about it's about 25cm X 25cm and
   10cm
   high. The Antennas base was around 2cm diameter and antenna height
   around 20cm high.
   He held it by a single antenna when he left, and the way how it swung
   as
   he lifted it up onto his clipboard I'd say it wasn't light but wasn't
   heavy. Random stab - 600g in total (I'm comparing it to a Kindle that
   I've got near by).
   > If they are amps it would indicate that the boxes are transmitting a
   > signal, rather than listening. Can you tell from the video?
   Not sure how I could tell.
   > Were the lights flashing? Interesting that only one is illuminated in
   > this photo.
   Only one light was constantly on. No flashing.
   Alfie
   --
     Alfie John
     [1]alfiej@fastmail.fm

References

   1. mailto:alfiej@fastmail.fm