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RC4000 Antenna Controller
3.17 Remote Locate Command
This command requests the RC4000 to perform a LOCATE operation based on the satellite data
supplied. The command is designed to allow an M&C system to simulate entering satellite data manually
or selecting a satellite from the user's preset list stored in the RC4000.
NOTE: The M&C system is required to have confidence that the preset list is programmed correctly. The
Write Satellite Data command (39h) and Read Satellite Data command (3Ah) may be used to gain
confidence that the preset satellite list is correct.
The RC4000 will automatically sequence through the LOCATE operation. Any action that normally
requires user action from the front panel will be automatically initiated.
The command contains 37 bytes with the following format:
byte 0
byte 1
byte 2
byte 3
byte 4
bytes 5-14
bytes 15-20
bytes 21-22
byte 23
Appendix REM
STX
A
RC4000 address
41h
Remote Locate command code
Preset Flag & Preset Index Tens
7 6 5 4
0 1 0 A $ 0 0 0 B
A – 1 = perform LOCATE to an indexed satellite from the user
preset list stored in the RC4000.
Bytes 5-28 may be left blank.
NOTE: this option is required to reference an inclined orbit
satellite that has ephemeris data associated with it.
B – Tens digit of preset satellite index (if applicable)
(0 if index < 10): index value may be between 0 to 19
A – 0 = perform LOCATE to a satellite using name, longitude,
inclination and band data supplied in bytes 5-28.
Index Ones
Ones digit of preset satellite index (if applicable)
Sat Name
10 character satellite name
Longitude
Nominal satellite longitude
-179.9 to 179.9 (West longitude negative)
Left Justify and pad with blanks
Inclination
Satellite inclination
0 to 19
Left Justify and pad with blanks
Band
RF Band (0-C, 1-Ku, 2-C/Ku, 3-L, 4-X, 5-Ka, 6-S)
REM-30
3 2 1 0
Remote Control Option
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