Channel Master EXTREMEtenna (4228HD) - Manual (Page 8)

UHF Performance
antenna series
6
CM-4220HD, CM-4220MHD, CM4221HD
Installation Instructions:
1. Identify the direction of the desired TV stations
transmitter by using www.antennaweb.org.
2. Fold antenna front section out and tighten 4 wing nuts
as shown in Fig 1. Make sure the front section is aligned
straight with respect to the reflector grid and the 4 wing
nuts are securely tightened.
Cable
connection
port
Wingnuts
Fig 1