Comtech EF Data SLM-5650A - Manual (Page 186)

SLM-5650A Satellite Modem Revision 8
Network Processor (NP) Interface MN-SLM5650A
8–24
Reference
Selection Description
Internal …Internal high stability ovenized 10 MHz oscillator
Ext-1MHz
…an external 1 MHz reference, (accepts sine wave or square wave and locks the internal
reference to the 1 MHz)
Ext-5MHz
…an external 5 MHz reference, (accepts sine wave or square wave and locks the internal
reference to the 5 MHz)
Ext-10MHz
…an external 10 MHz reference, (accepts sine wave or square wave and locks the internal
reference to the 10 MHz)
Click [Submit] to save the desired Reference setting type.
Unit Interface Type (read-only)
Unit Interface Type Description
Network Processor
Identifies current data interface
Frequency Band
Selection Description
70/140 MHz 52 – 88 MHz, 104 – 176 MHz
L-Band 950 – 2000 MHz
Click [Submit] to save the desired Frequency Band selection.
Transmit
FEC Type
Selection Description
Viterbi (standard) K = 7 convolutional encoder.
None (standard) Uncoded.
Turbo (optional) Turbo Product Code, which is a block code.
Modulation Type
Selection Description
BPSK Bi Phase Shift Keying
QPSK Quadrature Phase Shift Keying.
OQPSK Offset Quadrature Phase Shift Keying.
8PSK 8 Phase Shift Keying
16QAM (optional) 16 Quadrature Amplitude Modulation.
FEC Code Rate
Selection Description
Viterbi 1/2, 2/3, 3/4, 5/6, or 7/8
Uncoded 1/1
Turbo 5/16, 21/44, 3/4, 7/8, or 17/18
Data Rate (kbps)
Enter a Transmit Data Rate (in kbps).