Instructions
Table Of Contents
- Cover PSA27021302- iss 12
- PSA2702_1302 Instruction Manual - Iss 12
- 1 Product Introduction
- 2 Basics of Operation
- 3 Quick Start Guide
- 4 Operation using the Menu System
- 4.1 Setting the Frequency Range of the Sweep
- 4.2 Sweep Time
- 4.3 Zero Span Mode (Demodulation Mode)
- 4.4 Setting the Sweep Mode and Sweep Bandwidth (RBW)
- 4.5 Setting the Level Attenuator, Amplitude Scale, and Limits
- 4.6 Controlling and Storing Traces and Images
- 4.7 Using Measurement Markers
- 4.8 Data Logging Functions (when fitted)
- 4.9 Storing and Recalling Set-ups | System Settings
- 4.10 Status Information | On-screen Help | System Utilities
- 4.11 Using Instrument Presets | Automatic Setting
- 5 File Storage for Traces, Screen Images & Set-ups
- 6 Upgrade Option U01
- 7 Further Notes on Operation
- 7.1 Signal Overload Levels and Indication
- 7.2 Operation using the Hard Keys Only
- 7.3 Setting Frequencies
- 7.4 Measuring Relative Amplitude
- 7.5 Triggered Operation
- 7.6 Level Offset and Compensation Tables
- 7.7 Limit Lines & the Limits Comparator | Creating Limit Patterns
- 7.8 The Logging Function
- 8 USB Connections | File System & Files Types
- 9 Default Settings | Power On State | Hard Reset
- 10 Firmware Updates | Upgrades | Maintenance
- 11 Safety Information
- 12 Specification
- 13 Appendix A: Optional Accessories
- 14 Appendix B: PSA-Manager and PSA-View Software
- 15 Appendix C: Factory Default Settings
- 16 Appendix D: Menu Tree Diagram
- Cover PSA27021302- iss 12
Page 27
Function = Scroll
Scroll mode is selected from Marker Setup > Function or from the Navigate Down hard key, and
is indicated by two horizontal arrows on the left hand side of the marker readout. The mode is
selected for the marker that is currently active.
Function = Peak Track
Peak Track mode can only be selected for M1. It is selected from Marker Setup > Function, and
is indicated by an upwards arrow followed by a capital T on the left hand side of the marker
readout.
When selected the marker will attempt to track the highest peak of the live trace.
Marker Frequency Precision
The frequency position of a marker is always shown to a resolution of 0.001MHz (1kHz).
However, the actual position of the marker is a function of the span. If, for example, the span is
set to 50MHz, each frequency point on the trace represents a “bucket” of frequencies 185kHz
wide (span/270).
If the marker is set using the Move Left/Right keys, it will give a frequency readout equal to the
upper frequency of the bucket. If the marker is set numerically to a specific frequency using
Manual Set, the marker position on screen will jump to the upper frequency of the bucket that
contains that numerical value.
If the span is reduced, the accuracy of the marker frequency readout improves. However, it is
only when the span is reduced to 270kHz that the marker frequency position becomes accurate
to 1kHz.
“Off Screen” Markers
Markers are positioned by absolute frequency. Consequently, when the frequency span of the
sweep is changed, the marker may no longer appear within the trace area. This is indicated by
an arrow within the marker readout replacing the amplitude value.
The frequency position of the marker is retained, but no amplitude information is available. If
the frequency span is subsequently changed to include the marker frequency, it will reappear in
the correct position.
Pressing the Navigate Up hard key (Peak Find mode) will bring the marker on screen at the
highest level in the trace.
Re-positioning a marker using the Move Left/Right keys will cause it to reappear immediately
from the appropriate side of the graticule. Alternatively pressing Marker>Centre in the Marker
Control sub-group menu will cause it to appear in the centre of the screen.
Marker Mode Symbols
Marker Difference Readout
If both markers are turned on, the difference in frequency and level is shown in grey underneath
as Mdelta. The readout represents the M2 values minus the M1 values (M2 - M1).