Shively Labs 6842, Instruction Manual Installation, Operation, & Maintenance, Page: 41 / 64

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Connecting the Antenna (3-bay to 8-bay)
Figure 19. Bay cable connection
CAUTION
Stressing a coax connection after assembly can detune the system.
Therefore, never make a connection and then bend or twist the cable, or
use the connector to force the coax into shape. Form the cable first,
then attach it to the connector.
CAUTION
The minimum single bending radius for HCA78-50J coax is 4" (100 mm)
The repeated bending radius is 10" (250 mm). Do not bend it too tightly;
you may damage it.
d. Using the M6 metric nuts (provided with the bay), connect the output ends
(labeled "Gas Block Termination") of the antenna bay cables to the antenna
bay input flanges.
e. Secure the cables to the mounting pole or tower leg, using tie-wraps ( 29 ) or
customer-supplied cable clamps.
Connect the tower
transmission line.
a. Provide a gas stop between the tower transmission line and the power
divider (or transformer) if necessary. The antenna bays are not pressurized.
The feed system up to the power divider may be pressurized.
b. Coat the O-ring ( 46 ) lightly with O-Lube (supplied with the antenna), then
install it in the O-ring groove in the flange.
c. Using the 3-1/8" EIA flange hardware kit ( 47 ), attach the tower transmission
cable to the power divider (or transformer) input. Tighten in accordance with
Table 1 on page 1.
d. Secure the cables to the mounting pole or tower leg, using tie-wraps or
customer-supplied cable clamps.