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SGN 71001-1017
43
7
S
TAR
G
U I D E
III
I
N S TAL L AT I ON
S
U P P L EM E NT
The information contained in this section refers specifically to receiver installation, station
wiring, and operation of the StarGuide III receiver within a standard commercial radio
environment.
Read through the StarGuide Digital Networks receiver Guide Sections 1
through 3
Introduction
,
Getting Started
,
Quick Start
to get an idea of what work needs to be completed before you are
ready to continue with any additional installation requirements.
7.1
Satellite Transmission Information
Most commercial radio station feeds within the United States transmit on SatCom C5. This
satellite is located at 139
°
West Longitude. Please check with you service provider for the
correct polarization of the exact transponder being used. Please insure that your antenna is
properly aligned to this (or the correct) satellite. Review Section 7.2.1 below for more
information.
7.2
Antenna (Dish) Requirements
The StarGuide receiver can operate in multiple satellite environments including C-Band and
Ku-Band systems. The antenna requirements are based on your service provider’s frequency
band and the power being transmitted. Please check with your service provider to determine
your minimum dish requirements.
In the existing C-Band environment within the United States, a commercial grade, 3.8-meter
antenna is mandatory. Antennas of smaller sizes do not have sufficient gain to achieve
consistent results. Additionally, the antenna must be certified for 2
°
spacing. If your antenna is
not certified for this spacing requirement, you may experience adjacent satellite interference,
which may have detrimental results in your signal quality.
7.2.1
Align Receiving Antenna
It is strongly recommended that a professional installer aligns the receiving antennal. A
professional installer is experienced at making the proper adjustments (azimuth, elevation, and
polarization), required to align the antenna properly. Your antenna should be aligned when the
satellite is in the center of its oscillation. See the following section for more information.
To have StarGuide Digital Networks calculate the appropriate antenna azimuth and elevation
angles (look angle) for your particular site, contact us at 800-847-8391. The technician will
need the longitude and latitude shown on your station license.
If you align your antenna yourself, it is best to align the elevation and azimuth independently.
Once the antenna is pointed at the satellite, minor adjustments should be made to “peak” the
antenna, which will maximize your signal strength. The power from the satellite can be
maximized using a spectrum analyzer to determine the peak power. The receiver STATUS
MENU can be used to obtain a measurement of the signal strength. See Section 4.2.5.4
Checking the Receiver Signal Strength
to check the receiver’s signal strength reading.
Summary of Contents for StarGuide III
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