Location and Description of Major Components

TM 11-5985-371-12&P

1-10. Location and Description of Major Components. Major components of the

AS-3577/GRC are shown assembled for use and briefly described below.

GUY PLATE. Consists of a round steel plate 3 inches (7.6 cm) in diameter. The

center hole fits over the male end of a mast section, and five of the eight outer

holes serve for attaching the four guys and a halyard. Three guy plates are mounted

on the mast.

MAST. The mast supporting the double delta antenna includes a mast base, a 6

inch square plate, insulator, and 16 identical 3-foot (0.92 meter) mast sec-

tions. When the mast sections are interconnected, the effective length of each sec-

tion is 2.5 feet (0.76 meter). (See illustration on page 2-8. )

TERMINATING RESISTOR ASSEMBLY. The terminating resistor assembly includes a

600-ohm terminating resistor box, a terminating resistor box stop, and a terminating

resistor box stop clamp which mounts the terminating resistor stop to the mast.

HALYARD. The halyard is a 140-foot (42.7 meter) nylon rope used to raise the

terminating resistor box to the terminating resistor stop. In addition to the rope,

the halyard includes a pulley attached to a snap hook, to attach to the top guy

plate, and an eyelet to connect to the slide hook on the terminating resistor box..

ANTENNA WIRE. A 500-foot (152.5 meter) roll of AWG #14 antenna wire to

construct the double delta antenna.

CONDUCTOR SPLICE. Three conductor splices are connected to each of the two

antenna wires to form loops to attach to the antenna rod lanyards and the terminating

resistor box.

LANYARD. Four 30-foot (9.15 meter) lanyards, consisting of color reflective

orange nylon rope with a thimble and snap swivel at one end, connect the four

antenna rods to the four legs of the double delta antenna. The lanyards also con-

nect the antenna rod stakes to the safety area rope stakes to support the antenna

rod stakes.

ATENNA STAKES. Four antenna stakes assembled by connecting three identical

ground rods, are provided. The antenna stakes are connected via insulating lanyards

to the four legs of the double delta antenna. The antenna stakes and the safety

area rope stakes (item

) are identical. Each ground rod is 3 feet long.

Four 50-foot (15.25 meter) guys to support the upper portion of the

RED GUY.

mast.

WHITE GUY. Four 40-foot (12.2 meter) guys to support the center portion of the

mast.

BLUE GUY. Four 31-foot (9.46 meter) guys to support the lower portion of the

mast.

NOTE

Depending on the manufacturer, the guys, items

above,

and

hook, or may have its length

have a red, white, or blue color near the snap

(50, 40, or 31 feet respectively) stamped near the snap hook.

1-5