Siemens IEEE802.11 - Manual (Page 22)

WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt Page 22 © Siemens, 2002
DSSS Transmit Spectrum and Channels
fc
fc -11 MHz fc -22 MHz
Sinx/x
fc +11 MHz fc +22 Mhz
0 dBr
-30 dBr
-50 dBr
Unfiltered
Transmit
Spectrum
Mask
&DQQHO 86$ (76, -DSDQ
  0+]  0+] 1$
  0+]  0+] 1$
  0+]  0+] 1$
  0+]  0+] 1$
  0+]  0+] 1$
  0+]  0+] 1$
  0+]  0+] 1$
  0+]  0+] 1$
 0+]  0+] 1$
  0+]  0+] 1$
  0+]  0+] 1$
 1$  0+] 1$
 1$  0+] 1$
 1$ 1$  0+]