Specifications

SDM-300L3 Satellite Modem Revision 0
BUC FSK Communications MN/SDM300L3.IOM
16–3
16.2.2 Response Message Structure (BUC to IDU)
Byte Name Description Value
1 Address Address of BUC shifted left by 4 0x10 to 0xf0
2 Level Byte 1 MSbyte of TX output power
3 Level Byte 2 LSbyte of TX output power
4 Temperature
Temperature in °C
5 Status Byte 1 Bit 0: Temperature out-of-range
Bit 1: PLL out-of-lock
Bit 2: Checksum error
Bit 3: TX Status
Bits 4 thru 7: Power Class
1: OOR, 0: Normal
1: OOL, 0: Normal
1: error in command
message, 0: Normal
1: TX ON, 0: TX Off
0x1 to 0xf
6 Status Byte 2 Bits 0 – 3: Not used
Bits 4 –7: Software version
0xAA
0x0 to 0xf
7 Checksum Algebraic sum of bytes 1 - 6
Data Field Definitions
TX Power Level Unsigned integer in 1/100 dBm
Carrier Frequency Unsigned integer in MHz.
Termperature
Signed character in °C
16.3 Power Class
Includes all power levels for C- and Ku-Bands.
Value Power
0x1 2 watt
0x2 4 watt
0x3 5 watt
0x4 8 watt
0x5 10 watt
0x6 16 watt
0x7 20 watt
0x8 25 watt
0x9 40 watt
0xa 60 watt