GW Instek GSP-9300 - Page 175

ADVANCED OPERATION
173
802.11g
The channel span:
ERP-OFDM/DSSS-OFDM : 18MHz
ERP-DSSS/ERP-PBCC/ERP-CCK: 22MHz
Note: A, B, C, D denote offsets 1 to 4, respectively.
Here the default value of “f” is 40MHz (ERP-OFDM/
DSSS-OFDM) or 25MHz (ERP-DSSS/ ERP-PBCC/
ERP-CCK). This can be user-defined.
ERP-OFDM/
DSSS-
OFDM
Unit: MHz
Rel
[2]
RBW
9 ≤A<11
-0~-20dBc
100kHz
11≤B<20
-20~-28dBc
100kHz
20≤C<30
-28~-40dBc
100kHz
30≤D<f
-40dBc
100kHz
ERP-DSSS/
ERP-PBCC/
ERP-CCK
Unit: MHz
Rel
[2]
RBW
11 ≤A<22
-30dBc
100kHz
22≤B<f
-50dBc
100kHz
*reference: IEEE Std 802.11a-1999
802.11n
The channel span:
CH BW 20MHz: 18MHz
CH BW 40MHz: 38MHz
Note: A, B, C, D denote offsets 1 to 4, respectively.
Here the default value of “f” is 40MHz(CHBW
20MHz) or 70MHz(CHBW 40MHz). This can be user-
defined.
CH BW
20MHz
Unit: MHz
Rel
[2]
RBW
9 ≤A<11
-0~-20dBc
100kHz
11≤B<20
-20~-28dBc
100kHz
20≤C<30
-28~-45dBc
100kHz
30≤D<f
-45dBc
100kHz