CE-1008
TABLE 1-1. TABULATED LIST OF EQUIPMENT SUPPLIED (CONT).
Dimensions (Inches)
Part
Weight
Width
Nomenclature
Number
Qty
(Pounds)
Height
(Dia)
Depth
Ground Rod Assembly
728701
1
10
---
---
---
(est)
1
Model 122
1
12
24
(18)
---
(est)
DF Display
728930
1
60
8.71
19
23
Total weight 1700 lbs
(1) ANTENNA SYSTEM (See Figure 5-1) - The Antenna System is housed in a 16-foot inflatable radome on a
type I platform. It is designed for installation on an 80-foot tower or a portable hoisting stand. The Antenna System
consists of a 9-foot fiberglass parabolic reflector fed by a log-periodic dipole feed, an elevation drive assembly with
elevation capabilities of from -18 to +98 degrees, an elevation drive support casting, an elevation drive support
extension, an antenna pedestal with rotation capabilities of 300 degrees, two level bubbles, an elevation data cable
assembly, and r-f cable assemblies.
a. The antenna has a very narrow beam width and requires both azimuth and elevation rotation capabilities
in order to scan for, locate and receive r-f radiation from a point, or points, in space. The antenna operates over the
frequency range of from 1 to 12 GHz. The antenna is also provided with an electromechanical linear actuator (beam
broadener) with a motor-driven mechanism which provides remotely selectable actuation of the linear movement of the
feed support shaft relative to the focal point of the reflector. The primary effect of defocusing the feed toward the
reflector from the focal point is to increase the phase error across the reflector, broadening the main lobe by several
degrees and reducing the gain of the antenna. The antenna is capable of any one of four modes of remotely selected
linear polarization: horizontal, vertical, left-hand 45 degrees, or right-hand 45 degrees. Polarization and beam-
broadening is controlled from the remotely-located Antenna Position Control Indicator via cabling to the antenna
pedestal, the elevation data cable assembly, from the antenna pedestal to the elevation drive, and a cable from the
1-3