Spectrum Analyzer Mode
R&S
®
Spectrum Rider FPH
146
User Manual 1321.1011.02 ─ 11
1. Select "Power Display" softkey
The R&S Spectrum Rider opens a submenu to select the power display settings.
2. Select either the "Absolute" menu item to display the absolute results or the "Rela-
tive" menu item to display the power relative to one of the transmission channels.
6.1.6.5
Selecting the Reference Channel
When determining relative power values for the adjacent channels, you can set a spe-
cific transmission channel as the reference channel.
1. Press "Channel Settings" softkey.
The R&S Spectrum Rider opens a submenu to select the power display settings.
2. Select the "ACLR Ref Setting" menu item.
The R&S Spectrum Rider displays new softkeys to determine the reference chan-
nel.
The following methods are available:
● "Tx Channel"
Select a specific transmission channel by entering its number as the reference.
● "Min Pwr Tx Ch"
The channel with the lowest power level is the reference channel.
● "Max Pwr Tx Chan"
The channel with the highest power level is the reference channel.
● "Low High Chan"
The outer left-hand transmission channel is the reference channel for the lower
adjacent channels. The outer right-hand transmission channel is the reference
channel for the upper adjacent channels.
3. Select the desired softkey to determine the reference channel.
6.1.6.6
Setting and Checking the Limits
Limit checks in ACLR measurement mode are independent of limit line handling. You
can define a limit for each of the adjacent channels. Limits for adjacent channels can
be set either in absolute or relative terms.
Defining relative and absolute limits
1. Press [MEAS] key.
2. Select "Channel Settings" softkey.
The R&S Spectrum Rider opens a submenu to select the channel settings.
3. Select the "Channel Limit Relative" or the "Channel Limit Absolute" menu item.
The R&S Spectrum Rider opens a dialog box to define the relative or absolute lim-
its for each adjacent channel.
Performing Spectrum Measurements
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