[TowerTalk] Reflector Length Vs SWR

[Tony]

All:

I noticed a loss in front-to-back ratio on my 3 element SteppIR and it 
appears I lost the reflector motor. The front-to-back ratio doesn't 
change when I try to modify the length of the reflector and the SWR 
doesn't change at all.

The SWR does change when I modify the length of the director and driver 
as does the f/b ratio so the motors on the other elements appear to be 
working fine.

It looks like the reflector might be stuck in the fully retracted 
position so it probably needs replacing. Before I order a new EHU, does 
anyone know how to diagnose the older SteppIR controllers? The antenna 
and controller are about 18 years old.

Tony -K2MO