Technical Bulletin
Date:
December 11, 2015
Subject: Changes to Tracking Parameters of DISH Network’s 110°W and 119°W Satellites
Products Affected
Marine Systems: TracVision® C3, 4, 6, G4, G6, G8, M5, M7, and M9
RV Systems: TracVision L3, S3, R4, R5, R4SL, and R5SL
Problem Description
DISH Network® has changed the left-hand (LHCP) tracking transponders of its 110°W and 119°W satellites from QPSK to 8PSK encoding. As a result, DISH Network subscribers with the above referenced TracVision systems might need to choose an alternate LHCP tracking transponder as described below.
Problem Solution – TracVision M5, M7, and M9 Models
Systems Equipped with an RF7 Board
Antennas with an RF7 board installed can decode 8PSK signals. KVH started building antennas with the RF7 board in October 2013. However, all antennas built from January 2009 through October 2013 can be upgraded in the field. KVH recommends the RF7 board upgrade kit be installed in all antennas that can be upgraded in order to avoid additional tracking parameter limitations in the future.
TracVision Model
RF7 Installed at Factory Serial Numbers
Suitable for RF7 Upgrade Serial Numbers
RF7 Board Upgrade Kit Part No.
M5
131000890 and later
0901xxxx – 131000889
72-0599-02
M7
131000307 and later
0901xxxx – 131000306
72-0599-03
M9
131000141 and later
0901xxxx – 131000140
72-0599-01
If the antenna has an RF7 board installed, verify that the following tracking parameters are configured in the system:
Parameter
Satellite 110°W
Satellite 119°W
Satellite 129°W
Polarization
LHCP
RHCP
LHCP
RHCP
LHCP
RHCP
Frequency
12530 MHz
12516 MHz
12676 MHz
12486 MHz
12501 MHz
12516 MHz
Symbol Rate
21500
20000
20000
20000
21500
20000
FEC Code
2/3
7/8
6/7
7/8
9/9
5/6
Network ID
0x1006
0x1006
0x0003
0x1004
0x1008
0x1008
Decoding Type
Turbo 8PSK
DVB QPSK
DSS
DVB QPSK
Turbo 8PSK
DVB QPSK