Operation
R&S
®
DDF205
15Getting Started 4073.0187.02 ─ 03
7. Volume Control Rollkey.
The volume of the speaker and headphones is adjusted with this knob. Pressing
the
knob will toggle the speaker mute. Headphones remain active when the speaker
is in mute position.
8. Cursor Left/Right & Main Rollkey.
●
Cursor LEFT/RIGHT moves the cursor in input fields and scrolls within lists. It
also step tunes the frequency by half of the span.
●
The main ROLLKEY or ROTARY KNOB is a weighted rotary knob which func-
tions primarily as a tuning knob. In certain menus, the main rollkey serves as
up/down
key. Pressing the rollkey confirms an entry (equivalent to the ENT key).
9. Data Entry Keys.
●
The 0~9 keys allow entry of the corresponding number or alphabet, decimal
point or symbol.
●
ENT (Enter) activates the editing mode and also confirms an entry.
10. USB 2.0 Port.
Allows a USB 2.0-compliant mouse, keyboard or storage device to be connected.
Maximum current
The maximum current for the USB port is 500 mA.
11. Headphones Jack.
Allows stereo headphones with a 3.5 mm stereo plug to be connected.
2.1.2 DDF205 without front control panel
An overview of the front-panel elements of the DDF205 without front control panel
is given in the paragraph below.
Front-Panel Tour
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