R&S 1129.7246.03, Operating Manual

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Operating Manual 1302.6163.12 - 03 4.195
R&S ESU Instrument Functions
Analyzer Mode
Measurement with user-specific channel configuration:
Measurement of the adjacent-channel power ratio (ACPR) of an IS95 CDMA signal
at 800 MHz, level 0 dBm. Similar to example 1, the setting can be simplified by using
CP/ACP STANDARD .
[ PRESET ] Set the R&S ESU to the default setting.
[ FREQ: CENTER : 800
MHz ]
Set the center frequency to 800 MHz.
[ AMPT : 0 dBm ] Set the reference level to 0 dBm.
[ MEAS ] Call the menu for the measurement functions.
[ CHAN PWR / ACP ] Select the channel and adjacent-channel power measure-
ment function. The measurement is carried out with the
default settings or a previously defined setting. The sub-
menu for setting the desired new configuration is opened.
[ CP/ACP CONFIG ] Call the submenu for defining the channel configuration.
[ NO. OF ADJ CHAN :
2 ENTER ]
Select two adjacent channels for the measurement, i.e.
the adjacent channel and the alternate channel are mea-
sured.
[ CHANNEL
BANDWIDTH : 1.23 MHz :
U d
: 30 kHz ]
Set the channel bandwidth to 1.23 MHz in accordance
with IS 95. Set the adjacent-channel bandwidth to 30 kHz.
Upon entry of 30 kHz for the adjacent channel the alter-
nate channels are also set to 30 kHz.
[ CHAN SPACING : 1.25
MHz :
U d
885 kHz:
U d
: -
1.98 MHz ]
U d
: 2.97 MHz ]
Open the list for entering the channel spacings.
Upon entry of 885 kHz for the adjacent channel the chan-
nels ALT1 and ALT2 are set to 1770 kHz and 2655 kHz.
Upon entry of 1.98 MHz for the alternate channel 1 the
alternate channel 2 is set to 2.97 MHz.
[ ADJUST SETTINGS ] Automatically set the optimum span (= 5 MHz), resolution
bandwidth (RBW = 30 kHz), video bandwidth (VBW = 300
kHz) and detector (RMS) for the measurement. The abso-
lute channel power and the relative power of the adjacent
channels and alternate channels are displayed on the
screen.
Go to the main menu for channel power measurement.
[ ADJUST REF LVL ] Set the reference level equal to the channel power mea-
sured.
TX/ACP CHANNEL BW
CHAN BANDWIDTH
ADJ 30 kHz
ALT1 30 kHz
ALT2 30 kHz
TX 1.23 MHz
TX/ACP CHAN SPACING
CHAN SPACING
ADJ 885 kHz
ALT1 1.98 MHz
ALT2 2.97 MHz
TX 1.25 MHz
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