Agilent Technologies 8753ES Option 011 Service Manual page 311

• About 0.750 MHz is a typical counter reading with no AC signal present.
• Anything occurring during bandswitches is not visible.
• Fast-moving waveforms may be sensitive to sweep time.
• The analog bus input impedance is about 50K ohms.
• Waveforms up to approximately 200 Hz can be reproduced.
Analog In Menu
Select this menu to monitor voltage and frequency nodes, using the analog bus and
internal counter, as explained below.
To switch on the analog bus and access the analog in menu, press:
SERVICE MENU
System
The
RESOLUTION
Resolution
LOW
HIGH
Table 10-12 Analog In Menu Keys
Key
AUX OUT on OFF
COUNTER: OFF
ANALOG BUS
Chapter 10
ANALOG BUS ON
key toggles between low and high resolution.
Maximum Signal
+0.5 V
+10 V
GPIB
Mnemonic
N/A Allows you to monitor the analog bus nodes (except nodes 1,
2, 3, 4, 9, 10, 12) with external equipment (oscilloscope,
voltmeter, etc.). To do this, connect the equipment to the AUX
INPUT BNC connector on the rear panel, and press
AUX OUT
CAUTION
N/A Switches the internal counter off and removes the counter
display from the display. The counter can be switched on with
one of the next three keys. (Note: Using the counter slows the
sweep.) The counter bandwidth is 16 MHz unless otherwise
noted for a specific node.
NOTE
N/A Switches the counter to monitor the analog bus.
Service Key Menus and Error Messages
ANALOG IN
Meas
Minimum Signal
−0.5 V
−10 V
Description
ON
, until is highlighted.
To prevent damage to the analyzer, first
connect the signal to the rear panel AUX
INPUT, and then switch the function ON.
OUTPCNTR is the GPIB command to output the
counter's frequency data.
Service Key Menus
10-21