First get the balun from a safe source like Wineguard or Channel Master.
MANY of them will not pass UHF, They cut off abt 500 MHZ.
Rotor is necessary especially on a big antenna & HDTV. Alliance & CM
are good. CM is quiet & the U100 clicks loudly. If guyed mount up high
if not a few ft above roof.
You can put lightning arresters on BUT almost all hits are on power lines
not the antenna.
When you put on the balun cut back the coax & be sure its clean & shinny.
Most of the antenna parts are riveted. Great place for corrosion & no
easy fix.
73 Zeno
LFOD !