Comtech EF Data SLM-5650B - Page 192

SLM-5650B Satellite Modem
Revision 2
Network Processor (NP) Interface 8–26 MN-SLM-5650B
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.