Microwave Radio Communications SCM4000, Техническое справочное руководство

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Preset Settings B-5 SCM4000 Operator’s Guide/Tech Ref Manual
Figure B-4: Demodulator Menu Settings Menu - Top Level Worksheet
Demodulator
* Data Ch1:
Demodulator
* EVM: _____%
Demodulator
* SNR: _____dB
Demodulator
> Mod Type: ____
Demodulator
> SR: ______MS/s
Select symbol rate
from 0 to 20.2 MS/s.
Select QPSK ,
16QAM , 32QAM , or
64QAM .
Monitor signal-to-
noise ratio.
Monitor Error Vector
Magnitude (EVM).
Data Ch1
Data Ch1
* Rate: ____Mb/s
Observe Data
Channel 1 bit rate.
Demodulator
* Data Ch2:
Data Ch2
Data Ch2
* Rate: ____Mb/s
Observe Data
Channel 2 bit rate.
Demodulator
* Data Ch3:
Data Ch3
Data Ch3
* Rate: ____Mb/s
Observe Data
Channel 3 bit rate.
Demodulator
* Data Ch4:
Data Ch4
Data Ch4
* Rate: ____Mb/s
Observe Data
Channel 4 bit rate.
Demodulator
> Ln Coding: ___
Select On or Off .
Demodulator
* PRBS Info:
PRBS Info
> PRBS: _____
PRBS Info
> Reset PRBS
PRBS Info
* BER: _________
Observe bit error
rate.
(See Notes) (See Notes) (See Notes) (See Notes)
Select On or Off . Select reset.
Demodulator
> SR: ____MS/s
Mod Type: ______
SNR: ______dB
EVM: ____%
Data Ch1:
_______
Rate: _____Mb/s
Data Ch2:
_______
Rate: _____Mb/s
Data Ch3:
_______
Rate: _____Mb/s
Data Ch4:
_______
Rate: _____Mb/s
Ln Coding: ____
PRBS Info:
PRBS: ____
BER: _________
Reset PRBS
Notes:
Data Channels are dependent upon factory settings and hardware
configurations. The following Data Channel options are available:
Off E3 1 E1 2
ASI 1 E3 2 Eth 1
ASI 2 SMPTE Eth 2
ASI 3 T1 1 RS232
DS3 1 T1 2 RS485
DS3 2 E1 1
Settings and values shown are typical and are provided as examples only.
• If Data Channel options are ASI 1, 2, or 3, go to
1
on Figure B-5.
• If Data Channel options are DS3/E3 1 or 3, go to
2
on Figure B-5.
• If Data Channel options are Eth 1 or 2, go to
3
on Figure B-5.
• If Data Channel options are RS232 or RS485, go to
4
on Figure
B-5.
• If the Data Channel option is SMPTE, go to
5
on Figure B-5.
• If Data Channel options are T1/E1 1 or 2, go to
6
on Figure B-5.
Preset Name/Number: __________________
Date: _________________