Chapter 2 25
Front and Rear Panel Features
Front Panel Overview
8 Vol. Control/
Earphones
Not currently implemented.
9
PROBE PWR Supplies power for external high frequency probes and accessories (see “Accessories” on page 69).
10 Marker Keys Enable markers to obtain specific information about the displayed measurement
11
EXT TRIGGER
INPUT
Enables you to externally trigger measurements.
12
POWER
ON/OFF
Turns the analyzer on. A green light indicates power on. A yellow light indicates standby mode.
NOTE The front-panel switch is a standby switch, not a LINE switch
(disconnecting device); the analyzer continues to draw power even when
the line switch is in standby. Use the detachable power cord to disconnect
the analyzer from the mains supply.
13
Help Key Press the Help key, then any other key to get a short description of that key and the associated SCPI
command. The next key you press will remove the help window from the display.
14
Window Keys Next Window: On displays with multiple windows, changes the highlighted window that is currently
active.
Zoom: Zooms in on the highlighted window.
15
Navigation
Keys
Move cursor between fields on the display.
16
Return Key Exits the current menu and returns to the previous menu.
17
Data Controls Change the numeric value of an active function. Entries appear in the active function area of the
display. Also see “Entering Data” on page 37.
18
Floppy
Disk Drive
Accepts a 3.5 inch 1.44 MB floppy disk.
19
RF Input Input for an external signal. Make sure that the total power of all signals at the analyzer input does not
exceed +30 dBm (1 watt). The E4446A, E4447A, and E4448A input connector is 2.4 mm.
20
IF Input, 1st LO
Output
Allows connections for external mixing (Option AYZ)
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