Download Comtech EF Data CDM-710G Product specifications
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CDM-710G High-Speed Satellite Modem Front Panel Operation Revision 1 MN-CDM710G If TX Power Æ Imped(ance) is selected (this menu selection is available/displayed only when the 70/140 MHz Modulator card is installed): TX Impedance (Ohms): 50 75 ( E) Note the following: 70/140 MHz Select 50 or 75(Ω) using the arrow keys, then press ENTER. L-Band Not applicable. (CONFIG:) Tx Æ Scram Tx Scrambling Index: Gold-n = 000000 (▲ ▼ E) The Gold-n Index indicates the Physical Layer spreading sequence number, and can be set from 0 to 262,141. The default setting is all 0s. To edit, use the W X arrow keys to select the digit to be edited, then use the ST arrow keys to change the value of the digit. Press ENTER when done. 6.3.1.3 CONFIG: Rx Rx: FEC Dem Code SymRate Freq EbNo PLL (E) Select FEC, Dem(od), Code, SymRate, Freq, EbNo, or PLL using the W X arrow keys, then press ENTER. Note the following: IMPORTANT The CDM-710G operates only in DVB-S2 mode; this makes several Rx parameters read-only. These parameters are resolved automatically and do not need to be configured: • • • • Rx: Dem (Demodulation Type) Rx Dem Æ Inv (Spectrum Invert) Rx Dem Æ Pilot Rx: Code Rate (CONFIG:) Rx Æ FEC If Rx Æ FEC is selected: Rx FEC: LDPC + BCH (E) This is a read-only status message. Press ENTER or CLEAR to return to the previous menu. 6–17