R&S FSQ Signal Analyzer - Rohde & Schwarz

R&S FSQ Instrument Functions
ADJ REFLVL
OFFSET
Analyzer Mode
Defines an additional level offset to the measured mean power to be taken into
account for the analyzer's reference level setting.
It is a modification to the ADJUST REF LEVEL function specific to user standards.
Proceed as follows to adjust the offset value for a predefined standard:
➢ Select a predefine standard with the CP/ACP STANDARD
➢ Create a new user standards with SAVE AS USER STD
➢ Select the user standard you just created with SELECT USER STD
➢ Change the offset
➢ Save the user standard again to keep the current settings.
Remote command: POW:ACH:PRES:RLEV:OFFS 10dB
SELECT TRACE The SELECT TRACE softkey selects the trace on which the CP/ACP measurement
is to be performed. Only activated traces can be selected, i.e. traces not set to
BLANK.
Remote command: SENS:POW:TRAC 1
Measurement of adjacent-channel power for a specific standard:
The adjacent-channel power is to be measured for a signal at 800 MHz with 0 dBm
level in line with IS136.
[PRESET] Set the R&S FSQ to the default setting.
[FREQ: CENTER: Set the center frequency to 800 MHz.
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 measurement
function. The measurement is performed with the
default settings or a previously defined setting. The submenu
for setting the desired new configuration is opened.
[CP/ACP STANDARD: Select the NADC (IS136) standard.
select IS136: ENTER]
[CP/ACP CONFIG] Call the submenu for configuration of the adjacent-channel
power measurement.
[NO. OF ADJ CHAN: 2 Select two adjacent channels for the measurement, i.e.
ENTER]
the adjacent channel and the alternate channel are measured.
[ADJUST SETTINGS] Set the optimum span, resolution bandwidth (RBW), video
bandwidth (VBW) and detector automatically for the measurement.
The absolute channel power and the relative
power of the adjacent channels are displayed on the
screen.
Change to the main menu for channel power measure-
PREV
ment.
[ADJUST REF LVL] Set the reference level equal to the channel power measured.
Operating Manual 1313.9681.12 - 01 4.103