Channel Master 4221 Instruction Sheet Download Page 1

MAST CLAMP

CROSSARM

1

¹⁄₄

” MAST

TO TRANSMITTING

STATION

NOTE: A space of 

¹⁄₂

” should be maintained

between wires at crossover points.

FIG. A

FIG. B

FIG. C

BREAK-OFF NOTCH
FOR TRANSLATOR
STATIONS ONLY

MULTI-BAY ANTENNA

I N S T R U C T I O N S H E E T

WARNING: Installation of this product near power lines is DANGEROUS.

For your safety, read the enclosed “DANGER” booklet before
beginning your installation.

STEP 1

Attach antenna to mast using square U-bolts and mast clamps as shown. See FIG. A.

STEP 2

Secure transmission line to tap-off points with washers and wing nuts as shown and run

transmission line down mast. See FIG. B.

ALTERNATE MOUNTING METHOD: Insert swaged end of antenna crossarm into 1

¹⁄₄

” mast.

Face antenna in proper direction, tap down on top of crossarm to secure into mast.
See FIG. C.

NOTE: For translator stations (Channels 70-83), break off ends of dipoles (indicated by notch)
approximately 1” from each end. See FIG.B.

P/N 51022

Printed in U.S.A.

4221A & 3021 Rev. D

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