The hy-gain rotor is a very sturdy design that has passed the test of time. Paul Rako takes a look inside to see what makes it endure. 1. The hy-gain HAM-IV antenna rotator used on a VHF TV ...

These days, rotators are more often found on communication antennas like ham radio beams. For terrestrial use, the antenna only needs to swing around and doesn’t need to change elevation.

Ham radio antennas are somewhere in between. Occasional downtime is ok and speed is moderately important since some satellite passes go across the whole sky in 10 minutes.

Along with a high-frequency antenna, Koodur also has a high-end, sophisticated ham radio transceiver. Bhat said he has made contact confirmation with members from more than 230 countries, and has ...