Using a Standard Setup (802.11a/g/j/p OFDM)
Selects a OFDM (Orthogonal Frequency Division Multiplexing) standard preset configuration. When a standard preset is selected, the VSA automatically sets the parameters shown in the following table:
|
Available OFDM Standard Presets |
|
|---|---|
|
|
|
The 802.11a/g/j/p OFDM Demodulator must be selected before these Standard Presets are available.
|
OFDM Standard Preset Configuration |
|||
|---|---|---|---|
|
Parameter |
|||
|
Span |
31.25 MHz |
31.25 MHz |
31.25 MHz |
|
Data Subcarrier Modulation |
Automatic |
Automatic |
Automatic |
|
Guard Interval |
1/4 (0.8 µs) |
1/4 (0.8 µs) |
1/4 (0.8 µs) |
|
Synchronization Reference |
Short Training Sequence |
Channel Estimation Sequence |
Channel Estimation Sequence |
|
Subcarrier Spacing |
312.5 kHz |
312.5 kHz |
312.5kHz |
|
Symbol Time Adjustment |
-3.125% |
-3.125% |
-3.125% |
|
Subcarrier Selection |
All |
All |
All |
|
Pilot Tracking |
Track Phase |
Track Phase |
Track Phase |
|
Equalizer Training |
Preamble Only |
Preamble Only |
Preamble Only |
|
Normalize IQ Traces |
ON |
ON |
ON |
|
Search Length |
1 msec |
1 msec |
1 msec |
|
Result Length |
Automatic 60 Symbols |
Automatic 60 Symbols |
Automatic 60 Symbols |
|
Measurement Offset |
0 |
0 |
0 |
|
Measurement Interval |
60 Symbols |
60 Symbols |
60 Symbols |
|
Mirror Frequency |
Off |
Off |
Off |
See Also
802.11a/g/j/p Demod Properties
Selecting the 802.11a/g/j/p OFDM Demodulator
