Transcript
SB-0023-1.00
StarBand™ Communications Field Service Bulletin Rev.
1.00
DATE: December 21, 2001 TITLE: OCONUS Installation Information PURPOSE: This Field Service Bulletin provides installer information specific to StarBand installations performed in authorized OCONUS (outside of Continental US) areas. SCOPE: Currently the StarBand high-speed Internet access service is available in select OCONUS areas using the Telstar 7 satellite at 129 degrees west longitude and a 1.2 meter antenna. See the StarBand website for the OCONUS areas supported. This document will provide information specific to these OCONUS installations and does NOT apply to installations within CONUS (CONUS meaning the 48 contiguous United States) or in unauthorized OCONUS areas. REQUIRED MATERIALS: Due to the lower satellite performance in OCONUS areas, a 1.2 meter antenna will be required for StarBand service. Additionally, a higher performance LNB (low noise block downconverter) is required as described below. If DBS service is desired a second antenna must be supplied by the DBS service provider to obtain the digital television service. The same ODU, IFL and IDU materials that are used in CONUS installations will be used in OCONUS installations. Antenna and Mount FCC license requirements require StarBand OCONUS installations to use the Channel Master Type 123 transmit/receive Ku-Band antenna. Due to the larger antenna size than CONUS installations, an installation mount with a larger diameter (3 inch outside diameter) pipe is required for the 1.2 meter antenna. Both the antenna and roof/wall mount can be purchased directly from Channel Master (http://www.channelmaster.com) using the below part numbers. Part Number Description 621235201C ANTENNA: 1.2M, T/R, TYPE123 W/FEED & OMT 611604103
MOUNT: ROOF/WALL, FOR USE WITH CHANNEL MASTER 1.2M
LNB (Low Noise Block downconverter) OCONUS installations must use an LNB with manufacturer model number NJR2544HWN and a noise figure rating of 0.6 dB or lower. Noise figure is a measure of the LNB’s performance. The lower the noise figure the higher the performance. Both the model number and the noise figure rating are stamped on the side of the LNB. Additionally, because this LNB has an internal transmit reject filter the external transmit reject filter (if provided with the antenna) must be removed to provide optimal outbound link performance (see StarBand FSB SB-0016). SATELLITE FOR STARBAND OCONUS SERVICE: Currently all StarBand OCONUS installations will use Telstar 7. GE-4 is not available for OCONUS service. Therefore, all OCONUS customers must have line-of-sight to Telstar 7. The content of this internal document is proprietary to StarBand Communications Inc. It may not be reproduced in whole or in part without the consent of StarBand. The disclosure of information contained herein does not constitute any license or authorization to use or to disclose the information, ideas or concepts presented. page 1 of 3
StarBand Field Service Bulletin SB-0023-1.00 OCONUS Installation Information Rev. 1.00 INSTALLATION: OCONUS installation of StarBand VSATs shall be performed as follows: Antenna Installation Due to radiation hazard concerns, the antenna must be installed in areas that are not accessible to small children. Meaning, the antenna should be installed a minimum of 5 feet from the ground to avoid children and animals getting between the transmitter and the antenna. Site specific magnetic azimuth, true azimuth, elevation and polarization pointing angles to Telstar 7 can be determined using the latest version of the StarBand Point Dish application. Entry of either the site zip code or latitude and longitude and choosing Telstar 7 as the satellite will provide the correct pointing angles. Point Dish will automatically identify OCONUS locations and provide the “polarization offset” angle for the Channel Master 1.2 meter Type 123 antenna rather than the “skew” angle used by the CONUS 75E antenna. For vertical transmit polarization assignments the polarization offset angle must be aligned with the alignment mark shown in Figure A. For horizontal transmit polarization assignments the polarization offset angle must be aligned with the meeting point of the upper and lower feed clamps as shown in Figure B. Refer to the Channel Master “Instruction and Assembly Manual” for the 1.2 meter Type 123 antenna for required tools, materials provided and instruction on antenna assembly and pointing. Grounding of the antenna structure in accordance with the National Electrical Code and local codes is required for all installations using installer provided grounding materials. Note that grounding of the coaxial cable must only be done if required by local codes. LNB Installation If provided remove the transmit reject filter (TRF) from the 1.2 meter antenna feed/OMT assembly and white seal on the LNB waveguide port prior to installing the 0.6 dB noise figure (model number NJR2544HWN) LNB on the antenna receive port (see StarBand Field Service Bulletin number FSB0016). Install the LNB on the antenna feed/OMT assembly receive waveguide port using M4 hardware. Torque the M4 hardware to 15 inch-pounds. ODU Installation Install the ODU on the antenna feed/OMT assembly transmit waveguide port using M4 hardware. Torque the M4 hardware to 15 inch-pounds. IFL Installation The same installer provided RG-6 IFL cable1 and Type-F/female connectors that are used in CONUS installations will be used for OCONUS installations. IDU Installation The same StarBand satellite modem and associated indoor materials used for CONUS indoor installations will be used for OCONUS installations. Commissioning The same StarBand CVACS system that is used for CONUS installations will be used for OCONUS installations.
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Starband installations will use RG-6 cable equivalent to Commscope 5787 for applications requiring burial or Commscope 5786 for applications not requiring direct burial cable. See StarBand Maintenance Bulletin MB-0005 for further information.
The content of this internal document is proprietary to StarBand Communications Inc. It may not be reproduced in whole or in part without the consent of StarBand. The disclosure of information contained herein does not constitute any license or authorization to use or to disclose the information, ideas or concepts presented. page 2 of 3
StarBand Field Service Bulletin SB-0023-1.00 OCONUS Installation Information Rev. 1.00
Figure A - 1.2m Vertical Transmit Polarization Alignment
Horn Scale (polarization offset)
-40
0
+40
Clamp Bolt
This top view of the 1.2 meter Type 123 Channel Master antenna feed shows that for sites assigned to a vertical transmit polarization the Point Dish "polarization offset" value associated with the Horn Scale must be aligned with the Alignment Mark.
Alignment Mark
Figure B - 1.2m Horizontal Transmit Polarization Alignment Horn Scale (polarization offset) Upper Feed Clamp
-40 0 +40
This side view of the 1.2 meter Type 123 Channel Master antenna feed shows that for sites assigned to a horizontal transmit polarization the Point Dish "polarization offset" value associated with the Horn Scale must be aligned with the joining of the upper and lower feed clamps. This is 90 degrees offset from the vertical transmit polarization setting shown in Figure A.
Lower Feed Clamp
Horizontal transmit polarization aligns the Horn Scale where the upper and lower feed clamps meet. As shown this is aligned for horizontal transmit polarization with 0 polarization offset.
The content of this internal document is proprietary to StarBand Communications Inc. It may not be reproduced in whole or in part without the consent of StarBand. The disclosure of information contained herein does not constitute any license or authorization to use or to disclose the information, ideas or concepts presented. page 3 of 3
