Hughes Jupiter HT1100 Installation Manual page 27

Figure 16: Latitude and longitude parameters
2. Enter the site latitude and longitude values from your Global Positioning
System (GPS) receiver, in degrees and minutes to three decimal places.
• The modem's installation software uses the site's latitude and longitude to
determine the uplink and downlink cells to assign to the modem and the
uplink polarization setting on the radio's assembly left-handed circular
polarization (LHCP) or right-handed circular polarization (RHCP).
• You must enter the latitude and longitude in the format shown below:
Latitude: DD MM.MMM
Longitude: DDD MM.MMM
• Enter degrees in whole numbers only, with no decimals. Degrees latitude is 1
or 2 digits (0- 90° north or south). Degrees longitude is 1 - 3 digits (0 - 180°
east or west). Examples of degrees correctly entered:
5, 05, 42 or 112
•
Enter minutes as a whole number plus a decimal fraction to three places
(thousandths) with no seconds. Examples of minutes correctly entered:
7.223 and 34.775
•
If you type a number with a leading zero, the zero is not displayed after you
press Submit. For example, if you type 06 it is displayed as 6.
•
Some GPS receivers are suitable for Ka-band installations; some are not. For
a complete discussion on various GPS receivers, see FSB, Introduction to
Commercial GPS Units for Ka Installers (FSB_080404_01).
3. Accept the defaults for the Satellite: and Advanced: fields as shown in Figure
16 unless directed to do otherwise.
4. Click Submit.
After you enter the installation parameters on the Installation Params screen and
click Submit, the satellite modem enters pointing mode.
Refer to Chapter 4 – Installing outdoor equipment and antenna pointing for the next
step in the process.
Chapter 3 • Installing the satellite modem
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