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CDM-710 Broadcast Satellite Modem
Revision 11
Front Panel Operation
MN/CDM710.IOM
5–22
(CONFIG: Rx) SymRate
Data: 017.185842 Mbps
Sym: 017.379483 Msps (E)
If the Rx Path is not locked, the message should as shown in the above example. To change the
Symbol Rate, use the
W
X
arrow keys to select the digit to be edited, then use the
ST
arrow keys
to change the value of that digit. Press
ENTER
when done.
In
DVB-S
and
DVB-DSNG
Mode, the Data Rate digits also change as the Symbol Rate values
are edited. The value of the Data Rate depends upon the code rate, modulation type. When
programming a new symbol rate (or indirectly a data rate) the value is not accepted unless it is
within a valid range.
See the tables under the
(CONFIG:) Tx
Æ
SymRate
menu for the valid range of symbol / data
rates.
In
DVB-S2
Mode,
Demod Unlocked
in place of the ‘Data:’ value (on the top line) while the
Rx path is not synchronized. After synchronization, the correct data rate appears in the display
and the demodulator has automatically resolved the modulation type, code rate, pilots ON/OFF,
FEC frame length, spectral inversion, etc. from the DVB-S2 carrier.
(CONFIG: Rx) Mode
Receive Mode (DVB):
S2-G/S2-TS S DNG
The RX Mode is a key parameter for setting all modem parameters, and it is generally easier if it
is set first. The Mode determines which demodulation, code rates, FEC type and symbol rate
range are available and also if Pilots or Gold Code settings are available. Changing the Mode will
change one or more of these. The available range also determines on the FAST options selected at
time of purchase.
Select
S2-G/S2-TS
,
S
, or
DSNG
using the
W
X
arrow keys, then press
ENTER
. After changing
modes, check the modulation, code, and data rate selections.
(CONFIG: Rx) Freq
RX Freq: 0140.0000 MHz
(
▲
▼
E)
Edit the RX IF Frequency. Use the
W
X
arrow keys to select the digit to be edited. Use the
ST
arrow keys to change the value of that digit, then press
ENTER
.
Note the following:
CDM-710 (70/140 MHz)
The ranges of frequencies are from 52 to 88 MHz and from 104 to 176
MHz with a resolution of 100 Hz.
CDM-710L (L-Band)
The range is 950 to 2000 MHz with 100 Hz resolution.
IMPORTANT
The bandwidth of the modulated carrier MUST stay within the IF frequency
range, or the frequency is not accepted.
Содержание CDM-710
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Страница 26: ...CDM 710 Broadcast Satellite Modem Revision 11 Preface MN CDM710 IOM xx Notes ...
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Страница 144: ...CDM 710 Broadcast Satellite Modem Revision 11 Ethernet Management MN CDM710 IOM 6 24 Notes ...
Страница 230: ...CDM 710 Broadcast Satellite Modem Revision 11 Appendix A MN CDM710 IOM A 56 Notes ...
Страница 236: ...CDM 710 Broadcast Satellite Modem Revision 11 Eb No Measurement MN CDM710 IOM B 6 Notes ...
Страница 242: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX ...