12
You need to connect two
75
RF coax cables
from the antenna location to the belowdecks
equipment. Refer to Figure 18 to determine the
type of cables and connectors required for your
cable run. Then prepare both of them as
described below.
a.
Terminate both ends of the cables with the
proper “F” connectors (see Figure 18 for
connector and tool part numbers).
b. Label both ends
of the two RF cables. Label
one cable “TX,” and label the other “RX.”
Figure 18: RF Cable Requirements
* Cables from KVH include the proper connectors.
** LMR tool kits from KVH include a torque wrench.
15-50 ft (5-15 m) Cable Run
Cable
RG-11
(KVH part no. 32-0566-50)
Loss: 0.084 dB/ft (0.276 dB/m)
Connector
Thomas & Betts SNS11AS*
Tools
Thomas & Betts CST596711, L3011B
(KVH part no. 72-0493)
Strip
Lengths
51-100 ft (16-30 m) Cable Run
Cable
LMR-400-75
(KVH part no. 32-0944-0100)
Loss: 0.06 dB/ft (0.195 dB/m)
Connector
Times Microwave EZ-400-FMH-75*
Tools
Times Microwave TK-400EZ-75
(KVH part no. 72-0374-75**)
Strip
Lengths
101-150 ft (31-45 m) Cable Run
Cable
LMR-600-75
(KVH part no. 32-0945-0150)
Loss: 0.04 dB/ft (0.13 dB/m)
Connector
Times Microwave EZ-600-FMH-75*
Tools
Times Microwave TK-600EZ
(KVH part no. 72-0375-75**)
Strip
Lengths
0.25" (6.
3
5 mm)
0.5" (12.7 mm)
0.064" (1.6
3
mm) di
a
.
0.170" (4.
3
2 mm)
0.
3
44" (
8
.74 mm)
0.065" (1.65 mm) di
a
.
0.610" (15.49 mm)
0.250" (6.
3
5 mm)
0.
3
70" (9.40 mm)
0.10
8
" (2.74 mm) di
a
.
0.
8
70" (22.10 mm)
• RF cables must be rated for
75
, not 50
.
• Low-quality, poorly terminated, or
improperly installed RF cables are the
most common cause of system problems.
Terminate all RF cables with high-quality
“F” connectors using the proper
stripping/crimping tools, exactly to the
manufacturer’s specifications.
• Make sure the center conductor pin at
each end of the finished cables is 1/4"
(0.20"-0.28") (5-7 mm) in length, measured
from inside the nut to the tip, to ensure
proper engagement.
Instructions for
terminating LMR-400-75 cable are provided
• Each RF cable run must not exceed 6.5 dB
of insertion loss. Keep in mind that an in-
line connector adds at least 0.2 dB of loss.
IMPORTANT!
Prepare the RF Cables
7
