ORDER NO. 533
INSTRUCTION
MANUAL
Assembly
Instructions
Boom-to-Mast
Bracket Assembly
Element-to-Boom
Bracket Assembly
Model CB-3
CH, 3-element beam PN 805661
The Hy-Gain Model CB-3 is a 3-element. beam des igned to operate over the
entire frequency range (26,9 to 27.3 mc). lt develops a forward gain of 8 dB,
has a front-to-back ratio of 20 dB and front-to-side ratio of 40 dB.
Unpack the antenna from the carton and check the parts against the parts
Ii st. Use the drawings to help you in identifying the parts.
Select the boom-to-mast body and the boom-to-mast clamp and loosely
assemble using four 1/4"-20 x 3/4" screws in the outside holes only.
The inside holes will be used later for the U-bolts. Insert the boom tubes
(ends not drilled) into boom-to-mast clamp. Holes in tubes must be hori-
zontal. Now, tighten the four screws in the boom-to-mast bracket securely.
See Figure 2.
Select the two sets of small element-to-boom brackets and mount them on
each end of the boom in the pre-drilled holes using 10-24 x 1-3/4" screws,
nuts, and lockwashers as shown in Figure 3.
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