TM-9-2350-273-BD
M48/M60 SERIES TANK, COMBAT FULL-TRACKED 105-MM GUN
TECHNICAL MANUAL; OPERATORS, ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; BATTLEFIELD DAMAGE ASSESSMENT AND REPAIR
TM-9-2350-273-BD - Page 176 of 288
TM 9-2350-273-BD
COMMUNICATIONS
SYSTEM
11-20. FIBERGLASS WHIP ANTENNA REPLACEMENT
General Information:
Since it is not practical to splint a broken fiberglass whip, this procedure gives
instructions for construction of a field expedient antenna if no other antenna is
available.
Limitations:
●
Loader’s hatch cannot be completely closed.
●
May result in degraded performance.
Personnal/Time Required:
●
1 soldier
●
30 minutes
Materials/Tools:
●
Cable, coaxial, RG-8 (NSN 6145-00-161-0887) or RG-58 (NSN 6145-00-161-0908), 20-
foot length
●
Pencil, nail or sharp stick
●
Pole, wooden or stick, 10-foot length
●
Rope
●
Tape electrical
Other Options:
●
Utilize the R-442 auxiliary receiver
cables between receiver/transmitter.
●
Replace antenna with: field expedient
Procedral Steps:
1.
Measure off and mark but do not cut
metallic whip antenna by exchanging coaxial
ground plane antenna. (Refer to para. 11-21.)
five feet of coaxial cable.
2.
In one foot steps, strip the outer insulation from the cable to expose the braided
shield wire. Use care so that the shield wire is not cut.
3.
Bend the cable into a loop, holding it with one hand. Using a pencil or nail, and as
close to the remaining insulation as possible, carefully separate the braided shield from
the insulated center conductor.
4.
Work the pencil or nail between the shield wire and center conductor to form a
hole. While keeping the loop formed, place a finger in the hole and slowly pull the
center conductor out of the shield.
5.
Tape the center conductor to the top portion and the braided shield to the bottom
portion of a ten-foot pole. Tape as necessary to hold cable securely in place.
11-21
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