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 43
7.3.6 Creating Channel Markers (when fitted)
Channel markers are only available when Option U01 is fitted and provide a convenient method
of showing multiple fixed frequency points on the display via vertical lines that overlay or
replace the graticule.
They are created via a special type of limit pattern file. See section 7.7.6 for details.
7.4 Measuring Relative Amplitude
When both measurement markers are turned on, a readout is provided of the difference
between them in terms of both frequency and level.
A common requirement is to measure the signal amplitude at a specific frequency under
different conditions. The PSAxx02 provides a convenient method of doing this.
Having measured the amplitude in the initial condition using marker M1, the value can be fixed
from the Marker Setup sub-group menu (Traces/Markers > Marker Setup > Fix/Unfix M1). The
M1 readout shows Fx at the left hand side. With the new condition applied, the measurement
can be made again by moving M2 to the same frequency using the key Move M2 to M1. The
difference in amplitude level can then be read directly.
To return M1 to normal operation, press Fix/Unfix M1 again. See section 4.7.1.










