Analog In Menu - Agilent Technologies 8719ET Service Manual

8719ET/20ET/22ET
8719ES/20ES/22ES
RF Network Analyzers
Notes
• The display and marker units (U) correspond to volts.
• 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.
To switch on the analog bus and access the Analog In menu, press:
SERVICE MENU
System
The
RESOLUTION [LOW]
Table 10-2 Descriptions of Jumper Positions
Resolution Maximum Signal
LOW +0.5 V
HIGH +10 V
AUX OUT on OFF
To prevent damage to the analyzer, first connect the equipment to the rear
CAUTION
panel AUX INPUT, and before turning the function ON.
COUNTER: OFF
NOTE OUTPCNTR is the GPIB command to output the counter's frequency data.
ANALOG BUS
Service Guide
ANALOG BUS ON off
key toggles between low and high resolution.
Minimum Signal
−0.5 V
−10 V
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 on OFF
switches the internal counter off and removes the counter
from the display. The counter can be switched on with one
of the next three keys. (Using the counter slows the
sweep.) The counter bandwidth is 16 MHz unless
otherwise noted for a specific node.
switches the counter to monitor the analog bus.
Service Key Menus and Error Messages
ANALOG IN Aux Input
Meas
until selected.
ON
Analog Bus on OFF
10- 21