Specifications

Chapter 2 - Installation
42S315F 2-37
NOTE
To correct orient the feed refer to the feed installation
drawings. With linear feeds it is necessary to orient the
feed such that the vertical elements are positioned near the
center of the polarization drive. For circular feeds it is only
necessary to orient the feed so that waveguide ports can be
easily connected to the system waveguides without
excessive bending.
2.4.9.2 Installation of Subreflector to Subreflector Mounting Frame
The subreflector adjustment nuts was taped and the subreflector was
removed from the mounting frame. (Refer to step 9 of the subreflector
alignment procedure on page 2-20.) Reattach subreflector to mounting frame
with 3/4-10 nuts and washers as shown in Figure 2-1. Tighten 3/4-10
stainless steel nuts to 130 ft-lb [176 Nm].
2.4.9.3 Transformer Installation Inside Hub
A step down transformer must be installed inside the reflector hub when
using 3-phase electrical power other than 208V ac. Refer to Transformer
Installation Drawing number 521998 for detailed instructions.
2.4.9.4 Installation of Reflector Hub Cover
Refer to drawing 521988 for hub cover installation. The connector panel (Item
1) must be installed prior to installing the feed waveguide.
2.4.9.5 Installation of Feed Waveguide
Refer to the appropriate Waveguide Installation drawing. An index of
drawings is provided in tbd.
Transmit Waveguide Kit Installation Drawing
C-Band, Standard Power, 2 Port RT Linear 724638-5001
C-Band, Standard Power, 4 Port Linear 521874
C-Band, Standard Power, 4 Port Circular 521876
C-Band, High Power, 4 Port Linear 800 MHz 721953
Ku-Band, Standard Power, 4 Port Linear 521875
DBS-Band, Standard Power, 4 Port Linear 578860
NOTE