Description
These connectors (N-plug, N-jack, HN-plug, and 7/8"
EIA-flange) are designed for tab flaring of the outer
conductor and soldering of the inner contact to the inner
conductor of the coaxial cable. The HJ4-50 and HJ4-75
cables are jacketed and the HT4-50 cable in unjacketed
(for high-temperature and high-power applications).
Tools and Materials Required for Assembly
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Scale |
Fine-toothed hacksaw |
Knife |
Plastic head mallet |
Flat file |
Two Wrenches: 7/8" (19 mm) |
Garnet cloth |
and 13/16" (18 mm) |
Damp cloth |
Solvent: comothene, vythene, |
63/67 solder with |
or other nonflammable |
RMA flux |
cleaning fluid |
Metal snips |
Spacing gauge (supplied) |
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Soldering iron (150-Watt min.) |
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or resistance-type solderingunit |
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Notice
The installation, maintenance, or removal of antenna
systems requires qualified, experienced personnel.
Andrew installation instructions have been written for
such personnel. Antenna systems should be inspected
once a year by qualified personnel to verify proper
installation, maintenance, and condition of equipment.
Andrew disclaims any liability or responsibility for the
results of improper or unsafe installation practices.
Read Instructions Thoroughly Before Assembly
1 |
Prepare Cable. Straighten the end of the cable
for at least 10 inches (254 mm) and saw off a
short section so that the cable end is square. Remove
the jacket from the HJ4-50 or HJ4-75 cable to the
dimension shown. Use a straight-edged piece of heavy
paper wrapped around the cable to guide the cutting
knife. Clean the outer conductor with solvent.
To expose the inner conductor, carefully saw through
the outer conductor to the dimension shown. Make the
cut shallow enough to avoid damaging the inner conductor.
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![](Images/237004A1.gif)
Unscrew the piece of cut condutctor. Trim off the spiral
spacer with a sharp knife. Use a file to remove copper
burrs. Hold the cable downward and tap it to shake out
any copper particles.
![](Images/237004A2.gif)
2 |
Add Gasket and Clamping Nut. For HT4-50 cable,
first slide a retaining ring and support band
onto the cable as shown. Then, for all cables, screw the
threaded gasket onto the outer conductor and position it
as shown. Apply a thin coating of silicone grease with
your finger tip to the outer surface of the gasket and to
the gasket sealing surface in the clamping nut. Note:
The outer threads of the clamping nut must be kept free
of grease.
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