Rohde & Schwarz FPC1000, User Manual

Page: 132 / 291

The Receiver Application
FPC1000
117
User Manual 1178.4130.02 ─ 02
3. Select the "Channel Downlink" or "Channel Uplink" menu item to select a channel
table.
10.3 Amplitude Configuration
Access
: "Ampt"
Access
: "Setup" > "Config Overview" > "Amplitude" (selected settings)
Access
: "Setup" > "Config Overview" > "Input" (selected settings)
Remote commands to configure the amplitude:
●
Chapter 13.11.3, "Amplitude" , on page 231
The following amplitude settings available in the receiver application are the same as
in the spectrum application.
●
"Reference Level": Chapter 9.4.1, "Reference Level" , on page 78
●
"Range / Ref Position" > "Auto Range": Chapter 9.4.3, "Scale of the Y-Axis" ,
on page 82
●
"Range / Ref Position" > "Range <x>dB": Chapter 9.4.3, "Scale of the Y-Axis" ,
on page 82
●
"Range / Ref Position" > "Linear 0 - 100%": Chapter 9.4.3, "Scale of the Y-Axis" ,
on page 82
●
"Range / Ref Position" > "Ref Position": "Defining the position of the reference
level" on page 79
●
"Range / Ref Position" > "Reference Offset": "Defining a reference offset"
on page 79
●
"Unit": "Selecting the display unit" on page 82
●
"Preamplifier": "Preamplifier" on page 82
●
"Attenuator": "RF attenuator" on page 80
●
"Impedance": "Selecting the input impedance" on page 77
●
"Transducer": Chapter 9.4.4, "Transducers" , on page 83
Defining the bargraph scale
The scale of the bargraph depends on the reference level and the level range.
The reference level is the maximum power level that the bargraph displays. You should
set the reference level in a way that the signal level does not exceed the reference
level. It should also be high enough so that the signal does not disappear in the inher-
ent noise.
1. Press the "Ampt" key to open the amplitude menu.
2. Select the "Reference Level" menu item.
3. Define the reference level that best fits the measurement.
If you measure unknown signals, define a high reference level in combination with
a high attenuation to avoid an input overload.
Amplitude Configuration
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