User`s guide
Table Of Contents
- Overview
- Getting Started
- System Setting
- Making Measurements
- Measuring Multiple Signals
- Measuring a Low-Level Signal
- Improving Frequency Resolution and Accuracy
- Making Distortion Measurements
- One-button Power Measurement
- Making a Stimulus Response Transmission Measurement
- Measuring Stop Band Attenuation of a Low-pass Filter
- Making a Reflection Calibration Measurement
- Measuring Return Loss Using the Reflection Calibration Routine
- Making an Average Power Measurement
- Key Reference
- SCPI Command Reference
- Error Messages
- Menu Map
5Key Reference
84 N9340A User’s Guide
such as an amplifier. Now replace the thru line
with the device under test, and an accurate
measurement of the gain or loss can be made.
• Norm Ref Lvl
Sets the level (in dB) of the normalized refer-
ence.
• Norm Ref Posn
Offsets the displayed trace without affecting the
instrument gain or attenuation settings. This
allows the displayed trace to be moved without
decreasing the measurement accuracy.
• Ref Trace
Allows you to view or blank the reference trace
on the display.
Power Meter
Key access: [MODE] > {Power Meter}
Use the arrow keys to highlight the mode.
Select this mode, and press [ENTER] to make a
measurement using the power meter function.
When selected, the Power Meter softkey menu will
be displayed and many of the instrument hardkeys
will be disabled as they are not necessary for this
mode.
Start
Key access: [MODE] > {Power Meter} > {Start}
This performs a “start/stop” function of the
instrument when in Power Meter mode. Pressing
this softkey will start a measurement. Pressing this
softkey again will stop the measurement, and
“Stop” is displayed on the softkey.
Zero/Cal
Access the associated Zero/Cal submenu of the
power meter mode.
Key access: [MODE] > {Power Meter} > {Zero/Cal}