R&S ESU Series Operating Manual page 211

R&S ESU
CDMA2000 DS
CDMA2000 MC1
CDMA2000 MC3
TD-SCDMA
WLAN 802.11a
WLAN 802.11b
WIMAX
WIBRO
USER ()
NADC IS136
TETRA
PDC
PHS
CDPD
For the R&S ESU, the channel spacing is defined as the distance between the
center frequency of the adjacent channel and the center frequency of the transmis-
sion channel. The definition of the adjacent-channel spacing in standards IS95 B
and C, IS97 B and C and IS98 B and C is different. These standards define the
adjacent-channel spacing from the center of the transmission channel to the clos-
est border of the adjacent channel. This definition is also used for the R&S ESU
when the following standard settings are selected:
CDMA IS95 Class 0 FWD
CDMA IS95 Class 0 REV
CDMA IS95 Class 1 FWD
CDMA IS95 Class 1 REV
The selection of the standard influences the following parameters:
• channel spacing and adjacent-channel spacing
• channel bandwidth, adjacent-channel bandwidth, and type of filtering
• resolution bandwidth
• video bandwidth
• detector
• # of adjacent channels
FAST ACP is not available if a WLAN standard or the WiMAX or WiBro standard is
selected.
Trace mathematics and trace averaging are switched off.
The reference level is not influenced by the selection of a standard. To achieve an
optimum dynamic range, the reference level has to be set in a way that places the
signal maximum close to the reference level without forcing an overload message.
The default setting is CP/ACP STANDARD NONE.
4.180
Instrument Functions
Analyzer Mode
Operating Manual 1302.6163.12 - 03