Rohde & Schwarz DDF205, Getting Started

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Operation
R&S
®
DDF205
14 Getting Started 4073.0187.02 ─ 03
2. 5.7", 640 x 480 pixels color TFT display.
3. Utility keys.
●
ESC terminates an ongoing operation, e.g. by closing a dialog.
●
APPL sets the R&S DDF205 to a particular application mode -- Receiver, Video,
ITU (optional), Decode (optional).
●
MODE changes the R&S DDF205 from a Fixed Frequency Mode (FFM) to one
of the scanning modes.
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SETUP provides access to the setup and configuration dialogs.
●
MENU provides access to operational functions "Snapshot", "Record", "Pre-
set", "Zoom
+", "Zoom -", "Tests", "File" and "Sanitizing".
●
MEM provides a shortcut to memory-related dialogs: "Edit", "RCL", "Save" and
"Suppress".
●
HELP starts the online help system (see
​
chapter 2.3.3, "Online Help" ,
on page 36).
●
PANEL toggles between panels to make them active for softkey control.
4. Softkeys.
The function of each softkey is dependent on the softkey bar on the display.
5. Receiver Control Keys.
●
BW selects the demodulation bandwidth (between 100 Hz and 5 MHz).
●
AFC switches automatic frequency control (AFC) ON or OFF.
●
DET selects the level measurement mode (AVERAGE, PEAK, FAST or RMS).
●
DEMOD selects the demodulation mode (FM, AM, PULS, PM, IQ, ISB, CW,
USB, LSB).
6. Select Rollkey & Control.
●
MARK selects the marker function. The rollkey is used to set marker positions
with associated softkeys. Pressing the rollkey toggles marker display.
●
ATT allows the rollkey to set the RF attenuation level. Pressing the rollkey tog-
gles between AUTO and manually set attenuation values.
●
MGC allows the rollkey to set the demodulation level for amplitude related mod-
ulation schemes. Pressing the rollkey toggles between AUTO (AGC) and MGC.
Gain control has no effect on FM and PM.
●
SQU allows the rollkey to set the squelch level. Pressing the rollkey toggles the
squelch activation.
Front-Panel Tour