Arduino based SWR / Power meter.
Reads peak and  average Forward,
Reverse Power and SWR.
AI4SR



The new Club Rotator Controller.
It should be installed by 9/19.

Active Attenuator





AI4SR built PC Board and
components installed in
the active attenuator.
( Shown below.)



Active attenuator complete.
~ 0 to - 90 dbm.
Great for Fox Hunting with
the Tape Measure Antenna.