Config: Rx: Mode; Config: Rx: Frequency - Comtech EF Data CDM-710 Installation And Operation Manual

CDM-710 Broadcast Satellite Modem
Front Panel Operation
In DVB-S2 mode
synchronization the correct data rate appears in the display and the demodulator has automatically
resolved the modulation type, code rate, pilots ON/OFF, FECframe length, spectral inversion, etc.
from the DVB-S2 carrier.

Config: Rx: Mode

Mode
If is selected:
Receive Mode:
DVB-S2 DVB-S
The Mode is a key parameter for setting all modem parameters, and it is generally easier if it is
set first. The Mode determines which modulation, code rates, FEC type and symbol rate range are
available. The available range also determines on the FAST options selected at time of purchase.
After changing modes, check the modulation, code, and data rate selections.

Config: Rx: Frequency

Freq
If is selected:
RX Freq: 0140.0000 MHz
Edit the RX IF Frequency. This is accomplished by selecting the digit to be edited, using the

arrow keys. The value of the digit is then changed using the arrow keys. The user
should then press
70/140 MHz
L-Band
CAUTION
Demod Unlocked
DVB-DSNG
(E)
.
ENTER
The ranges of frequencies are from 52 to 88 MHz and from 104 to 176
MHz with a resolution of 100 Hz.
The range is 950 to 1950 MHz with 100 Hz resolution.
The bandwidth of the modulated carrier must stay within the IF frequency
range.
appears while the Rx path is not synchronized. After
(E)
5–24
Revision 9
MN/CDM710.IOM