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Rohde&Schwarz FS315 Operating Manual

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Page 1
08/2005
Page 2
Copyright R&S FS315
0 Copyright

Copyright

ROHDE & SCHWARZ GmbH & Co. KG Test and Measurement Division Mühldorfstraße 15 81671 München, Germany
st
1
edition 08/2005 Printed in Germany. Printed on FFC bleached paper.
Subject to alterations, Errors excepted. Reprints, also in extracts, are only allowed with written permission of the manufacturer. All rights reserved.
E-1147.1000.04 0-2 Operating manual, 08/2005
Page 3
R&S FS315 Chapter Overview

Chapter Overview

General
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Content of the Manual for Spectrum Analyzer R&S FS315 Data Sheet Safety Instructions Certificate of Quality EC Certificate of Conformity Customer Support List of Rohde & Schwarz Offices
Introduction
Control Elements
Putting the R&S FS315 into Operation
Getting Started
Manual Operating Concept
Using the R&S FS315
Remote Control/PC Software R&S FS315-K1
Instrument Interfaces
Error Messages
Index
Operating manual, 08/2005 0-3 E-1147.1000.04
Page 4
Content of the Manual R&S FS315

Content of the Manual

Operating Manual

Introduction
This operating manual provides information about:
Technical characteristics of the instrument Putting into operation Basic operating procedures and control elements Operation via menus and remote control
By way of an introduction, a typical R&S FS315 measurement is described.
The operating manual also contains information about maintenance and trou­bleshooting based on the warnings and error messages issued by the instru­ment.
E-1147.1000.04 0-4 Operating manual, 08/2005
Page 5
R&S FS315 Table of Contents

Table of Contents

Chapter Overview............................................................................................................................0-3
Content of the Manual..................................................................................................................... 0-4
Operating Manual ...................................................................................................................... 0-4
Table of Contents............................................................................................................................ 0-5
Data Sheet...................................................................................................................................... 0-12
Frequency................................................................................................................................ 0-12
Level ..................................................................................................................................... 0-13
Trigger ..................................................................................................................................... 0-15
Tracking Generator.................................................................................................................. 0-15
Inputs ..................................................................................................................................... 0-16
Outputs .................................................................................................................................... 0-16
Interfaces ................................................................................................................................. 0-17
General Data ........................................................................................................................... 0-17
Safety Instructions........................................................................................................................ 0-18
Certificate of Quality.....................................................................................................................0-21
EC Certificate of Conformity........................................................................................................0-22
Customer Support.........................................................................................................................0-23
List of Rohde & Schwarz Offices.................................................................................................0-24
1 Introduction................................................................................................. 1-33
1.1 Applications for the R&S FS315........................................................................................... 1-33
1.2 Supplied Accessories ........................................................................................................... 1-34
1.3 Warranty ................................................................................................................................. 1-34
2 Control Elements........................................................................................ 2-35
2.1 Front View ..............................................................................................................................2-35
2.2 Rear View................................................................................................................................ 2-36
3 Putting the R&S FS315 into Operation...................................................... 3-37
3.1 Unpacking the R&S FS315.................................................................................................... 3-37
3.2 Setting up the Instrument.....................................................................................................3-37
3.3 Connecting the R&S FS315 to the AC Line......................................................................... 3-39
3.4 Switching On the R&S FS315............................................................................................... 3-39
3.5 Function Test.........................................................................................................................3-40
3.6 EMC......................................................................................................................................... 3-40
3.7 Connecting an External Keyboard....................................................................................... 3-41
3.8 Connecting a USB Stick........................................................................................................ 3-42
Operating manual, 08/2005 0-5 E-1147.1000.04
Page 6
Table of Contents R&S FS315
4 Getting Started............................................................................................ 4-43
4.1 Level and Frequency Measurements................................................................................... 4-43
4.1.1 Measurement Task ...................................................................................................... 4-43
4.1.2 Measurement Procedure ............................................................................................. 4-44
4.2 Measuring the Frequency Response of a Twoport............................................................ 4-45
4.2.1 Measurement Task ...................................................................................................... 4-45
4.2.2 Measurement............................................................................................................... 4-45
5 Manual Operating Concept ........................................................................ 5-47
5.1 Making Entries from the Keypad.......................................................................................... 5-47
5.1.1 Numerical Keys............................................................................................................ 5-47
5.1.2 Unit Keys...................................................................................................................... 5-47
5.1.3 Rotary Knob ................................................................................................................. 5-48
5.1.4 Cursor Keys ................................................................................................................. 5-48
5.1.5 Function Keys .............................................................................................................. 5-48
5.1.6 Action Keys .................................................................................................................. 5-49
5.1.7 BACK/SYS Key............................................................................................................ 5-49
5.2 Screen Display....................................................................................................................... 5-50
5.2.1 Diagram Area............................................................................................................... 5-51
5.2.2 Menu Area ................................................................................................................... 5-52
5.2.3 Function Area............................................................................................................... 5-52
5.3 Calling and Changing Menus............................................................................................... 5-53
5.4 Setting Parameters................................................................................................................ 5-55
5.4.1 Direct Selection of Instrument Functions..................................................................... 5-55
5.4.2 Selecting Settings ........................................................................................................ 5-56
5.4.3 Entering Numerical Parameters................................................................................... 5-57
5.4.3.1 Entry with the Numerical Keys .................................................................... 5-57
5.4.3.2 Entry using the Cursor Keys and the Rotary Knob ..................................... 5-59
5.5 Overview of all Menus and Functions.................................................................................5-61
5.5.1 Spectrum Analyzer....................................................................................................... 5-61
5.5.1.1 FREQ/SPAN Menu...................................................................................... 5-61
5.5.1.2 AMPT Menu................................................................................................. 5-62
5.5.1.3 MKR Menu................................................................................................... 5-62
5.5.1.4 BW/SWEEP Menu....................................................................................... 5-64
5.5.1.5 TRACE Menu .............................................................................................. 5-65
5.5.1.6 TRIG Menu .................................................................................................. 5-65
5.5.1.7 MEAS Menu ................................................................................................ 5-66
5.5.2 SYSTEM Functions...................................................................................................... 5-68
5.5.2.1 PRESET Menu ............................................................................................ 5-68
5.5.2.2 STATUS Menu ............................................................................................ 5-68
5.5.2.3 FILE Menu ................................................................................................... 5-68
5.5.2.4 CONFIG Menu............................................................................................. 5-68
5.5.2.5 SERVICE Menu........................................................................................... 5-69
5.5.2.6 INFO Menu .................................................................................................. 5-69
E-1147.1000.04 0-6 Operating manual, 08/2005
Page 7
R&S FS315 Table of Contents
6 Using the R&S FS315 ................................................................................. 6-70
6.1 R&S FS315 Factory Settings................................................................................................ 6-70
6.2 Spectrum Analyzer................................................................................................................6-71
6.2.1 Selecting the Frequency Span (FREQ/SPAN Menu) .................................................. 6-72
6.2.1.1 Entering the Center Frequency ................................................................... 6-73
6.2.1.2 Frequency-Axis Display Modes................................................................... 6-74
6.2.1.2.1 Entering the Span ..................................................................................... 6-75
6.2.1.2.2 Displaying the Whole Frequency Range .................................................. 6-76
6.2.1.2.3 Switching over to the ZERO SPAN........................................................... 6-77
6.2.1.2.4 ZOOM Functions....................................................................................... 6-78
6.2.1.3 Entering the Start Frequency and the Stop Frequency............................... 6-79
6.2.1.4 Entering the Step Width of the Center Frequency ...................................... 6-80
6.2.1.4.1 Setting the Step Size ................................................................................ 6-81
6.2.1.5 Activating Signal Tracking ........................................................................... 6-82
6.2.2 Setting the Level Axis and the RF Input (AMPT Menu)............................................... 6-83
6.2.2.1 Entering the Reference Level...................................................................... 6-84
6.2.2.2 Entering a Level Offset................................................................................ 6-85
6.2.2.3 Selecting the Level Display Range ............................................................. 6-86
6.2.2.4 Selecting the Level Display Unit.................................................................. 6-87
6.2.2.5 Setting the RF Input Attenuation Manually.................................................. 6-89
6.2.2.6 Setting the RF Input Attenuation Automatically........................................... 6-90
6.2.2.7 Selecting the Setting High Sensitivity.......................................................... 6-92
6.2.3 Signal Analysis using Marker Functions (MKR Menu) ................................................ 6-93
6.2.3.1 Activating Marker 1...................................................................................... 6-94
6.2.3.1.1 Reading off Measured Values with Marker 1............................................ 6-95
6.2.3.1.2 Frequency Measurements using the Frequency Counter ........................ 6-97
6.2.3.2 Activating Marker 2...................................................................................... 6-98
6.2.3.2.1 Reading off Measured Values with Marker 2............................................ 6-99
6.2.3.2.2 Reading off Level Differences................................................................. 6-100
6.2.3.3 Accepting Marker Values as Settings ....................................................... 6-101
6.2.3.3.1 Moving Trace Sections in the Measurement Diagram ........................... 6-102
6.2.3.3.2 Setting the Step Size to the Marker Frequency...................................... 6-104
6.2.3.4 Marker Measurement Functions ............................................................... 6-105
6.2.3.4.1 Measuring the Noise Power Density ...................................................... 6-106
6.2.3.4.2 Measuring the Filter or Signal Bandwidth............................................... 6-108
6.2.3.5 Activating a Display Line ........................................................................... 6-110
6.2.3.6 Setting the Search Criterion of Functions NEXT PEAK LEFT/RIGHT...... 6-111
6.2.3.6.1 Entering the Peak Excursion .................................................................. 6-112
6.2.3.7 Setting Reference Points for Level-Difference Measurements................. 6-114
6.2.3.7.1 Manual Entry of Reference Points .......................................................... 6-115
6.2.4 Setting the Bandwidths and the Sweep Time (BW/SWEEP Menu) .......................... 6-118
6.2.4.1 Setting the Resolution Bandwidth ............................................................. 6-119
6.2.4.2 Setting the Video Bandwidth ..................................................................... 6-120
6.2.4.3 RBW, VBW and SPAN Coupling Ratio ..................................................... 6-121
6.2.4.3.1 Changing the Coupling Ratio RBW/VBW ............................................... 6-122
6.2.4.3.2 Switching Over the Coupling RBW/SPAN to Low Noise ........................ 6-123
6.2.4.4 Setting the Sweep ..................................................................................... 6-124
6.2.4.4.1 Selecting the Frequency Sweep............................................................. 6-125
6.2.4.4.2 Setting the Sweep Time.......................................................................... 6-126
Operating manual, 08/2005 0-7 E-1147.1000.04
Page 8
Table of Contents R&S FS315
6.2.4.5
Evaluating the Individual Pixels of a Trace ............................................... 6-128
6.2.4.5.1 Selecting the Detector ............................................................................ 6-129
6.2.5 Measured-Value Display (TRACE Menu).................................................................. 6-131
6.2.5.1 Selecting the Active Trace......................................................................... 6-132
6.2.5.1.1 Activating Traces .................................................................................... 6-133
6.2.5.2 Displaying the Active Trace....................................................................... 6-135
6.2.5.3 Trace Difference Function......................................................................... 6-138
6.2.5.3.1 Activating the Trace Difference Function................................................ 6-139
6.2.6 Triggering Measurements (TRIG Menu).................................................................... 6-140
6.2.6.1 Internal Trigger Sources............................................................................ 6-141
6.2.6.2 External Trigger Sources........................................................................... 6-142
6.2.6.3 Setting a Trigger Offset ............................................................................. 6-142
6.2.7 Measurement Functions (MEAS Menu) .................................................................... 6-143
6.2.7.1 Measuring the Power in the Time Domain ................................................ 6-144
6.2.7.1.1 Measuring the Power.............................................................................. 6-145
6.2.7.2 Measuring the Channel Power.................................................................. 6-148
6.2.7.2.1 Measuring the Channel Power ............................................................... 6-149
6.2.7.2.2 Measuring the Occupied Bandwidth....................................................... 6-151
6.2.7.3 Configuring the Built-In Generator ............................................................ 6-152
6.2.7.3.1 Selecting the Operating Mode ................................................................ 6-154
6.2.7.3.2 “Tracking Generator” Mode .................................................................... 6-154
6.2.7.3.3 “Freq Fixed” Mode .................................................................................. 6-159
6.2.7.4 AM/FM Demodulation................................................................................ 6-160
6.2.7.4.1 Demodulating Signals............................................................................. 6-161
6.2.7.5 Measuring the Third-Order Intercept Point................................................ 6-162
6.2.7.6 Activating the Transducer Function........................................................... 6-164
6.2.7.6.1 Using Transducer Sets ........................................................................... 6-165
6.3 SYSTEM Functions (BACK/SYS Key)................................................................................ 6-167
6.3.1 Instrument Default Setting (Menu PRESET) ............................................................. 6-169
6.3.1.1 Selecting and Calling the Instrument Default Setting................................ 6-170
6.3.2 Displaying the Current Instrument Setting (STATUS Menu) .................................... 6-171
6.3.2.1 Spectrum Analyzer Settings ...................................................................... 6-172
6.3.2.2 Settings for the Channel Power Measurement ......................................... 6-173
6.3.2.3 Tracking Generator Settings ..................................................................... 6-174
6.3.2.4 Demodulation Settings .............................................................................. 6-175
6.3.2.5 Settings for Transducer Sets..................................................................... 6-176
6.3.3 User-Defined Settings (FILE Menu) .......................................................................... 6-177
6.3.3.1 Saving and Loading User-Defined Settings .............................................. 6-178
6.3.3.2 Printing out a Screenshot .......................................................................... 6-180
6.3.4 System Settings (CONFIG Menu) ............................................................................. 6-184
6.3.4.1 Setting the Date and Time of Day ............................................................. 6-185
6.3.4.2 Selecting an Internal or External Reference Source................................. 6-187
6.3.4.3 Configuring the Instrument Interfaces ....................................................... 6-188
6.3.4.4 Setting the Screen Saver Mode ................................................................ 6-190
6.3.4.5 Selecting an Internal or External Monitor .................................................. 6-193
6.3.5 Service Functions (SERVICE Menu)......................................................................... 6-194
6.3.5.1 Performing Selftests .................................................................................. 6-194
6.3.6 System Information (INFO Menu).............................................................................. 6-195
E-1147.1000.04 0-8 Operating manual, 08/2005
Page 9
R&S FS315 Table of Contents
6.3.6.1
Displaying Module Data ............................................................................ 6-196
6.3.6.2 Displaying Instrument Statistics ................................................................ 6-196
6.3.6.3 Displaying System Messages ................................................................... 6-197
7 Remote Control/PC Software R&S FS315-K1......................................... 7-199
7.1 Applications of PC Software .............................................................................................. 7-199
7.2 Installation and Configuration............................................................................................ 7-200
7.2.1 Installing the PC Software ......................................................................................... 7-200
7.2.1.1 Installing the Program ............................................................................... 7-200
7.2.1.2 Installing the Device Drivers...................................................................... 7-203
7.2.1.2.1 Installing Steps for Windows™ 2000 ...................................................... 7-203
7.2.1.2.2 Installing Steps for Windows™ XP.......................................................... 7-207
7.2.2 Connecting the PC-Software with the R&S FS315.................................................... 7-211
7.2.2.1 Starting the Series 300 Software Manager ............................................... 7-211
7.2.2.2 Creating the Program Version................................................................... 7-212
7.2.3 Uninstalling the PC Software ..................................................................................... 7-213
7.2.4 Update PC Software .................................................................................................. 7-214
7.3 Starting the Remote Control............................................................................................... 7-216
7.3.1 Connecting the Instrument to the PC......................................................................... 7-216
7.3.2 Starting the Program.................................................................................................. 7-217
7.3.3 Closing the Remote Control....................................................................................... 7-219
7.4 Getting Started.....................................................................................................................7-219
7.4.1 Level and Frequency Measurement .......................................................................... 7-219
7.4.1.1 Measuring Task......................................................................................... 7-219
7.4.1.2 Measuring Sequence ................................................................................ 7-220
7.5 Control Concept................................................................................................................... 7-222
7.5.1 PC Monitor Display .................................................................................................... 7-222
7.5.1.1 Diagram ..................................................................................................... 7-223
7.5.1.2 Menus........................................................................................................ 7-224
7.5.1.3 Functions ................................................................................................... 7-225
7.5.2 Input via Keyboard and Mouse .................................................................................. 7-226
7.5.2.1 Numeric Keys ............................................................................................ 7-226
7.5.2.2 Arrow Keys ................................................................................................ 7-226
7.5.2.3 Function Keys............................................................................................ 7-227
7.5.2.4 Action Keys (Enter, Esc) ........................................................................... 7-228
7.5.2.5 Tab Key ..................................................................................................... 7-228
7.5.2.6 Space Key ................................................................................................. 7-228
7.5.2.7 Mouse Buttons........................................................................................... 7-229
7.5.3 Calling up and Changing the Menus ......................................................................... 7-230
7.5.4 Setting the Parameters .............................................................................................. 7-231
7.5.4.1 Direct Selection of a Instrument Function ................................................. 7-231
7.5.4.2 Selecting the Settings................................................................................ 7-232
7.5.4.3 Inputting the Numerical Parameters.......................................................... 7-232
7.5.4.4 Moving the Markers................................................................................... 7-234
7.6 Overview of all Menus and Functions (Shortcuts)........................................................... 7-234
Operating manual, 08/2005 0-9 E-1147.1000.04
Page 10
Table of Contents R&S FS315
File ............................................................................................................................. 7-234
7.6.1
7.6.2 Function ..................................................................................................................... 7-235
7.6.2.1 FREQ Menu............................................................................................... 7-236
7.6.2.2 Amp Menu ................................................................................................. 7-237
7.6.2.3 Marker Menu ............................................................................................. 7-238
7.6.2.4 BW/Sweep Menu....................................................................................... 7-240
7.6.2.5 Trace Menu ............................................................................................... 7-241
7.6.2.6 Trigger Menu ............................................................................................. 7-242
7.6.2.7 Measure Menu........................................................................................... 7-243
7.6.3 View ........................................................................................................................... 7-245
7.6.4 ? Help......................................................................................................................... 7-245
7.6.5 Zoom Functions ......................................................................................................... 7-245
7.7 Saving/Exporting Data (File)............................................................................................... 7-246
7.7.1 Opening the Session ................................................................................................. 7-246
7.7.1.1 Beginning New Measurement ................................................................... 7-246
7.7.1.2 Loading the Saved Settings ...................................................................... 7-247
7.7.2 Saving the Session .................................................................................................... 7-248
7.7.3 Monitoring the Measuring Values .............................................................................. 7-249
7.7.3.1 Inserting the Limit Lines ............................................................................ 7-249
7.7.3.2 Monitoring.................................................................................................. 7-252
7.7.3.3 Analyzing the Logfile ................................................................................. 7-254
7.7.4 Exporting the Measuring Data ................................................................................... 7-255
7.7.4.1 Creating the ASCII File.............................................................................. 7-255
7.7.4.2 Creating the Screenshot............................................................................ 7-256
7.7.5 Printing the Window................................................................................................... 7-257
7.8 Transducer Factors.............................................................................................................7-258
7.8.1 Creating Transducer List ........................................................................................... 7-260
7.8.2 Creating Transducer Set............................................................................................ 7-263
7.8.3 Activating Transducer Factors ................................................................................... 7-265
7.9 Customizing the Working Window (View) ........................................................................ 7-266
7.9.1 Adjusting the Window Size ........................................................................................ 7-266
7.9.2 Changing the Window Color ...................................................................................... 7-267
7.10 Getting Help (?).................................................................................................................... 7-268
7.10.1 Starting the Help ........................................................................................................ 7-268
7.10.2 Displaying the Program Version ................................................................................ 7-268
7.10.3 Displaying Module Data............................................................................................. 7-269
8 Instrument Interfaces ............................................................................... 8-270
8.1 Keyboard Connector (KEYB).............................................................................................. 8-270
8.2 Monitor Connector (MON)................................................................................................... 8-270
8.3 Input for External Trigger (EXT TRIG) ............................................................................... 8-271
8.4 Reference Input and Output (REF IN and REF OUT) .......................................................8-271
8.5 USB Interface (PC, DEV) ..................................................................................................... 8-271
8.6 Headphone Output (AF OUT) ............................................................................................. 8-271
E-1147.1000.04 0-10 Operating manual, 08/2005
Page 11

R&S FS315 Data Sheet

9 Error Messages......................................................................................... 9-272
9.1 System Messages................................................................................................................ 9-272
9.2 Warnings Indicating Impermissible Operating States..................................................... 9-273
10 Index ........................................................................................................ 10-275
Operating manual, 08/2005 0-11 E-1147.1000.04
Page 12
Data Sheet R&S FS315
Data Sheet
Note
For the R&S FS315 a calibration cycle of 1 year is recommended.

Frequency

Frequency range 9 kHz to 3 GHz
Frequency resolution 0.1 Hz
Reference frequency 10 MHz, nominal
Aging 2 x 10-6/year
Temperature drift 5° C to 30° C 1 x 10-6
External reference 10 MHz
Frequency counter
Resolution 1 Hz, 10 Hz
Count accuracy S/N > 25 dB ± (marker frequency x refer-
ence error + ½ (last digit))
Frequency span 1 kHz to 3 GHz, 0 Hz
Span accuracy < 1 %
Spectral purity
SSB phase noise
10 kHz carrier offset < -90 dBc (1Hz),
100 kHz carrier offset -100 dBc (1Hz) typ.
1 MHz carrier offset -110 dBc (1Hz) typ.
Residual FM RBW 1 kHz, VBW 1 kHz
Sweep time
Span > 1 kHz 30 ms to 1000 s
Max. deviation 1 %
Span = 0 Hz
Resolution 20 ns
9 kHz ≤ f ≤ 3 GHz
9 kHz ≤ f ≤ 3 GHz, weighting to CCITT
-95 dBc (1Hz) typ.
< 100 Hz
5 µs to 10 s
E-1147.1000.04 0-12 Operating manual, 08/2005
Page 13
R&S FS315 Data Sheet
Bandwidths
Resolution bandwidths (-3 dB) in 1, 2, 3, 5 sequence 200 Hz to 20 MHz
Bandwidth accuracy
RBW ≤ 1 MHz
2 MHz ≤ RBW ≤ 10 MHz
< 1 %
< 5 %
RBW 10 MHz, 20 MHz < 10 %
Shape factor 60 dB/3 dB
RBW ≤ 3 MHz
< 4.6:1
Video bandwidths In 1/2/3/5 sequence 10 Hz to 20 MHz

Level

Display range displayed average noise level
to + 33 dBm
Display scaling 80 dB, 40 dB, 16 dB, 8 dB,
linear
Display units
Logarithmic
Linear V, W
Maximum input level
DC voltage 30 V
-30 V to 30 V step
dBm, dBµV, dBmV
1200 V/µs
CW RF power
RF attenuator < 20 dB +13 dBm
RF attenuator ≥ 20 dB
50 MHz to 3 GHz +33 dBm
20 MHz to 50 MHz +26 dBm
9 kHz to 20 MHz +20 dBm
1dB compression point of 1st mixer
RF attenuation 0 dB, f > 100
-10 dB, nominal
kHz
Linearity
Harmonics -40 dBm input level,
< -60 dBc
RF attenuation 0 dB
Intermodulation-free dynamic range for third-order intermodulation
two-tone signal with level 2 x -30 dBm,
< -70 dBc
RF attenuation 6 dB
Operating manual, 08/2005 0-13 E-1147.1000.04
Page 14
Data Sheet R&S FS315
Displayed average noise level
9 kHz to 3 GHz,
< -110 dBm, typ. -115 dBm RF attenuator 0 dB, RBW 300 Hz, VBW 10 Hz
Spurious
Inherent spurious RF attenuator 0 dB,
< -85 dBm input terminated
Other spurious 10 MHz to 3 GHz,
level at 1
Level settings
st
mixer -35 dBm
< -60 dBc
Setting range of reference level -110 dBm to +36 dBm
Resolution 0.1 dB
RF attenuation range manual selection or automati-
0 dB to 70 dB cally coupled to reference level
Resolution 2 dB
Traces
1 active trace and 1 stored
trace
Trace detectors max peak, min peak, sample,
average, RMS
Trace functions clear/write, max hold, min hold,
average
Max. uncertainty of level meas­urement
Frequency response 9 kHz to 3 GHz,
< 1.0 dB RF attenuation 0 dB to 70 dB
Reference level accuracy < 0.3 dB
Display nonlinearity
0 dB to -60 dB < 0.3 dB
-60 dB to -70 dB < 1 dB
Bandwidth switching uncertainty < 0.3 dB
Total measurement uncertainty
0 dB to -60 dB down from ref.
1.5 dB, typ. 0.7dB
level, RBW ≤ 5 MHz
Markers
Number of markers and delta mark-
1 marker and 1 delta marker
ers
Marker functions
peak, next peak left, next peak
right, center = marker fre-
quency, ref level = marker level
Marker displays
normal (level), noise marker,
frequency counter, n-dB down
(bandwidth)
Audio demodulation
zero-span only, RBW ≤ 1 MHz
AM and FM
E-1147.1000.04 0-14 Operating manual, 08/2005
Page 15
R&S FS315 Data Sheet

Trigger

Span ≥ 1 kHz
Trigger source free run, external
Trigger offset Sweep time > 100 ms
Span = 0 Hz
Trigger source free run, external, video
Trigger offset negative offset limited by
0 s ≤ Trigger offset ≤ 100 ms,
resolution 25 ns
-100 ms ≤ Trigger Offset ≤
sweep time
10 s, resolution 25 ns

Tracking Generator

Frequency
Frequency range 9 kHz to 3 GHz
Frequency offset
Setting range 0 Hz to 3 GHz
Resolution 0.1 Hz
Spectral purity
SSB phase noise 10 kHz carrier offset
< -90 dBc (1Hz) 9 kHz ≤ f ≤ 3 GHz
Level
Level setting range 0 dBm to -50 dBm
Resolution 0.1 dB
Max. deviation of output level 9 kHz to 3 GHz, 20° C to
Spurious
Harmonics output level -10 dBm < -20 dBc
Nonharmonics output level 0 dBm < -30 dBm
< 1 dB 30° C, 50 kHz ≤ RBW ≤ 3 MHz
Operating manual, 08/2005 0-15 E-1147.1000.04
Page 16
Data Sheet R&S FS315

Inputs

RF input
Connector N female (front panel)
Input impedance 50 Ω
VSWR RF attenuation 20 dB < 1.5
LO radiation RF attenuation 10 dB < -50 dBm
External trigger input
Connector N female (front panel)
Voltage level TTL
Reference frequency input
Connector BNC female (rear panel)
Reference frequency
Impedance 50 Ω
Input level 0 dBm to 20 dBm
10 MHz ± 50 Hz

Outputs

RF out (tracking generator)
Connector N female (front panel)
Output impedance 50 Ω
VSWR < 1.6
Reference frequency output
Connector BNC female (rear panel)
Reference frequency 10 MHz
Output impedance 50 Ω
Output level 7 dBm, nominal
AF output
Connector 3.5 mm mini jack for
Output impedance 15 Ω
headhhone (rear panel)
E-1147.1000.04 0-16 Operating manual, 08/2005
Page 17
R&S FS315 Data Sheet

Interfaces

USB host device-specific command set,
remote control via supplied Windows driver (Win­dows XP/2000)
USB device B plug, protocol version 1.1
Connector for external monitor (VGA)
Keyboard connector PS/2 female
15-pin D-SUB female
A plug, protocol version 1.1

General Data

Display
Type 5.4” active TFT color display
Resolution 320 x 240 pixels
Max. refresh rate 10 pictures/s, nominal
Power supply
Input voltage range autoranging 100 V to 240 V (AC)
Power consumption < 60 W
50 Hz to 60 Hz
Ambient conditions
Permissible temperature range meets DIN EN 60068-2-1/2 + 5° C to + 45° C
Storage temperature range -20° C to + 70° C
Relative humidity meets DIN EN 60068-2-3
Mechanical resistance
Sinusoidal vibration meets DIN EN 60068-2-6,
Random vibration meets DIN EN 60068-2-64 10 Hz to 500 Hz: 1.9g
Shock meets DIN EN 60068-2-27 and
Electromagnetic compatibility
EMI field strength Safety Dimensions (W x H x D) Weight
95 % at + 40° C (non-condensing)
5 Hz to 150 Hz: max. 2g at DIN EN 61010-1 and MIL-T-28800D class 5
MIL-STD-810
meets EN 55011 class B and EN 61326 (EMC Directive of EU (89/336/EEC))
10 V/m
DIN EN 616010-1/IEC61010-1 UL3111-1; CSA22.2 No:1010.1
219 mm x 147 mm x 350 mm
approx. 9 kg
5 Hz,
55 Hz to 150 Hz: 0.5g constant
shock spectrum
Operating manual, 08/2005 0-17 E-1147.1000.04
Page 18
Safety Instructions R&S FS315

Safety Instructions

Note
Safety-related symbols used on equipment and documentation from R&S
This unit has been designed and tested in accordance with the EC Certificate of Conformity and has left the manufacturer’s plant in a condition fully comply­ing with safety standards.
To maintain this condition and to ensure safe operation, the user must ob­serve all instructions and warnings given in this operating manual.
Observe operat-
ing instructions
Danger!
Shock hazard
Weight
indication for units
> 18 kg
Warning!
Hot surfaces
PE terminal Ground
Ground Attention!
Electrostatic sen-
require special
terminal
sitive devices
care
E-1147.1000.04 0-18 Operating manual, 08/2005
Page 19
R&S FS315 Safety Instructions
Safety 1. instructions
The unit may be used only in the operating conditions and positions specified by the manufacturer. Unless otherwise agreed, the following applies to R&S products: IP degree of protection 2X, pollution severity 2 overvoltage category 2, only for indoor use, altitude max. 2000 m. Unless specified otherwise in the data sheet, a tolerance of ±10 % shall apply to the nominal voltage and of ±5 % to the nominal frequency.
For measurements in circuits with voltages V
2.
> 30 V, suitable measures
rms
should be taken to avoid any hazards (using, for example, appropriate meas­uring equipment, fusing, current limiting, electrical separation, insulation).
If the unit is to be permanently wired, the PE terminal of the unit must first be
3.
connected to the PE conductor on site before any other connections are made. Installation and cabling of the unit to be performed only by qualified technical personnel.
For permanently installed units without built-in fuses, circuit breakers or simi-
4.
lar protective devices, the supply circuit must be fused such as to provide suitable protection for the users and equipment.
Prior to switching on the unit, it must be ensured that the nominal voltage set
5.
on the unit matches the nominal voltage of the AC supply network. If a different voltage is to be set, the power fuse of the unit may have to be changed accordingly.
Units of protection class I with disconnectible AC supply cable and appliance
6.
connector may be operated only from a power socket with earthing contact and with the PE conductor connected.
It is not permissible to interrupt the PE conductor intentionally, neither in the
7.
incoming cable nor on the unit itself as this may cause the unit to become electrically hazardous. Any extension lines or multiple socket outlets used must be checked for com­pliance with relevant safety standards at regular intervals.
If the unit has no power switch for disconnection from the AC supply, the plug
8.
of the connecting cable is regarded as the disconnecting device. In such cases it must be ensured that the power plug is easily reachable and accessible at all times (length of connecting cable approx. 2 m). Functional or electronic switches are not suitable for providing disconnection from the AC supply. If units without power switches are integrated in racks or systems, a discon­necting device must be provided at system level.
Applicable local or national safety regulations and rules for the prevention of
9.
accidents must be observed in all work performed. Prior to performing any work on the unit or opening the unit, the latter must be disconnected from the supply network. Any adjustments, replacements of parts, maintenance or repair may be car­ried out only by authorized R&S technical personnel. Only original parts may be used for replacing parts relevant to safety (e.
g.
power switches, power transformers, fuses). A safety test must be performed after each replacement of parts relevant to safety (visual inspection, PE con­ductor test, insulation-resistance, leakage-current measurement, functional test).
Ensure that the connections with information technology equipment comply
10.
with IEC950/EN60950.
Operating manual, 08/2005 0-19 E-1147.1000.04
Page 20
Safety Instructions R&S FS315
Lithium batteries must not be exposed to high temperatures or fire.
11.
Keep batteries away from children. If the battery is replaced improperly, there is danger of explosion. Only re­place the battery by R&S type (see spare part list). Lithium batteries are suitable for environmentally-friendly disposal or special­ized recycling. Dispose them into appropriate containers, only. Do not short-circuit the battery.
Equipment returned or sent in for repair must be packed in the original pack-
12.
ing or in packing with electrostatic and mechanical protection.
Electrostatics via the connectors may damage the equipment. For the safe
13.
handling and operation of the equipment, appropriate measures against elec­trostatics should be implemented.
The outside of the instrument is suitably cleaned using a soft, lint-free dust-
14.
cloth. Never use solvents such as thinners, acetone and similar things, as they may damage the front panel labeling or plastic parts.
Any additional safety instructions given in this manual are also to be ob-
15.
served.
E-1147.1000.04 0-20 Operating manual, 08/2005
Page 21
R&S FS315 Certificate of Quality

Certificate of Quality

Certificate of quality
Dear Customer,
You have decided to buy a Rohde & Schwarz product. You are thus assured of receiving a product that is manufactured using the most modern methods available. This product was developed, manufactured and tested in compli­ance with our quality management system standards. The Rohde & Schwarz quality management system is certified according to ISO 9001.
Operating manual, 08/2005 0-21 E-1147.1000.04
Page 22
EC Certificate of Conformity R&S FS315

EC Certificate of Conformity

E-1147.1000.04 0-22 Operating manual, 08/2005
Page 23
R&S FS315 Customer Support

Customer Support

Technical support – where and when you need it
Up-to-date informa­tion and upgrades
Feedback
Customer support center
For quick, expert help with any Rohde & Schwarz equipment, contact one of our Customer Support Centers. A team of highly qualified engineers provides telephone support and will work with you to find a solution to your query on any aspect of the operation, programming or applications of Rohde & Schwarz equipment.
To keep your Rohde & Schwarz equipment always up-to-date, please sub­scribe to an electronic newsletter at
http://www.rohde-schwarz.com/www/response.nsf/newsletterpreselection
or request the desired information and upgrades via email from your Cus­tomer Support Center (addresses see below).
We want to know if we are meeting your support needs. If you have any com­ments please email us and let us know
CustomerSupport.Feedback@rohde-schwarz.com
USA & Canada
Monday to Friday (except US-state holidays) 8:00 AM – 8:00 PM Eastern Standard Time (EST)
USA: 888-test-rsa (888-837-8772) (opt 2) From outside USA: +1 410 910 7800 (opt 2) Fax: 410 910 7801
E-Mail: Customer.Support@rsa.rohde-schwarz.com
Rest of World
Monday to Friday (except German-state holidays) 08:00 – 17:00 Central European Time (CET)
Europe: +49 (0) 180 512 42 42 From outside Europe: +49 89 4129 13776 Fax: +49 (0) 89 41 29 637 78
E-Mail: CustomerSupport@rohde-schwarz.com
Operating manual, 08/2005 0-23 E-1147.1000.04
Page 24
List of Rohde & Schwarz Offices R&S FS315

List of Rohde & Schwarz Offices

HEADQUARTERS
Germany
PLANTS
SUBSIDIARIES
Rohde & Schwarz GmbH & Co. KG Mühldorfstraße 15 · D-81671 München Postfach 801469 · D-81614 München
Rohde & Schwarz Messgerätebau GmbH Riedbachstraße 58 · D-87700 Memmingen Postfach 1652 · D-87686 Memmingen
Rohde & Schwarz GmbH & Co. KG Werk Teisnach Kaikenrieder Straße 27 · D-94244 Teisnach Postfach 1149 · D-94240 Teisnach
Rohde & Schwarz GmbH & Co. KG Dienstleistungszentrum Köln Graf-Zeppelin-Straße 18 · D-51147 Köln Postfach 98 02 60 · D-51130 Köln
Rohde & Schwarz Vertriebs-GmbH Mühldorfstraße 15 · D-81671 München Postfach 80 14 69 · D-81614 München
Rohde & Schwarz International GmbH Mühldorfstraße 15 · D-81671 München Postfach 80 14 60 · D-81614 München
ROHDE & SCHWARZ Europe GmbH Mühldorfstraße 15, D-81671 München
Phone
Fax
E-mail
+49 (89) 4129-0
+49 (89) 4129-12164
-
+49 (8331) 108-0
+49 (8331) 108-11 24
-
+49 (9923) 850-0
+49 (9923) 850-11 74
-
+49 (2203) 49-0
+49 (2203) 49 51- 229
info@rsdc.rohde-schwarz.com
service@rsdc.rohde-schwarz.com
+49 (89) 41 29-137
+49 (89) 41 29-137 77
-
+49 (89) 41 29-129 84 +49 (89) 41 29-120 50
-
+49(89) 41 29-137 11
+49 (89)4129-137 23
info.rse@rohde-schwarz.com
ADDRESSES GERMANY
Rohde & Schwarz Engineering and Sales GmbH Mühldorfstraße 15 · D-81671 München Postfach 80 14 29 · D-81614 München
R&S BICK Mobilfunk GmbH Fritz-Hahne-Str. 7 · D-31848 Bad Münder Postfach 2062 · D-31844 Bad Münder
Rohde & Schwarz FTK GmbH Wendenschloßstraße 168, Haus 28 D-12557 Berlin
R&S Systems GmbH Graf-Zeppelin-Straße 18 D-51147 Köln
Rohde & Schwarz SIT GmbH Agastraße 3 D-12489 Berlin
Rohde & Schwarz Vertriebs-GmbH Mühldorfstraße 15 · D-81671 München Postfach 80 14 69 · D-81614 München
+49 (89) 41 29-137 11 +49 (89) 41 29-137 23
-
+49 (5042) 998-0
+49 (5042) 998-105
-
+49 (30) 658 91-122 +49 (30) 655 50-221
-
+49 (22 03) 49-5 23 25 +49 (22 03) 49-5 23 36
+49 (30) 658 84-0
+49 (30) 658 84-183
-
+49 (89) 4129-133 74 +49 (89) 4129-133 77
-
E-1147.1000.04 0-24 Operating manual, 08/2005
Page 25
R&S FS315 List of Rohde & Schwarz Offices
Branch offices of Rohde & Schwarz Vertriebs-GmbH
Zweigniederlassung Nord, Geschäftsstelle Berlin Ernst-Reuter-Platz 10 · D-10587 Berlin Postfach 100620 · D-10566 Berlin
Zweigniederlassung Büro Bonn Josef-Wirmer-Straße 1-3 · D-53123 Bonn Postfach 140264 · D-53057 Bonn
Zweigniederlassung Nord, Geschäftsstelle Hamburg Steilshooper Alle 47 · D-22309 Hamburg Postfach 60 22 40 · D-22232 Hamburg
Zweigniederlassung Mitte, Geschäftsstelle Köln Niederkasseler Straße 33 · D-51147 Köln Postfach 900 149 · D-51111 Köln
Zweigniederlassung Süd, Geschäftsstelle München Mühldorfstraße 15 · D-81671 München Postfach 80 14 69 · D-81614 München
Zweigniederlassung Süd, Geschäftsstelle Nürnberg Donaustraße 36 D-90451 Nürnberg
Zweigniederlassung Mitte, Geschäftsstelle Neu-Isenburg Siemensstraße 20 D-63263 Neu-Isenburg
ADDRESSES WORLDWIDE
+49 (30) 34 79 48-0
+49 (30) 34 79 48 48
-
+49 (228) 918 90-0 +49 (228) 25 50 87
-
+49 (40) 38 61 83-00 +49 (40) 38 61 83-20
-
+49 (2203) 807-0
+49 (2203) 807-650
-
+49 (89) 41 86 95-0
+49 (89) 40 47 64
-
+49 (911) 642 03-0
+49 (911) 642 03-33
-
+49 (6102) 20 07-0
+49 (6102) 20 07 12
-
Albania
Algeria
Argentina
Australia
Austria
Azerbaijan
Bangladesh
Belgium
see Austria
ROHDE & SCHWARZ Bureau d'Alger 5B Place de Laperrine 16035 Hydra-Alger
PRECISION ELECTRONICA S.R.L. Av. Pde Julio A. Roca 710 - 6° Piso (C1067ABP) Buenos Aires
ROHDE & SCHWARZ (AUSTRALIA) Pty. Ltd. Sales Support Unit 6 2-8 South Street Rydalmere, N.S.W. 2116
ROHDE & SCHWARZ-ÖSTERREICH Ges.m.b.H. Am Europlatz 3 1120 Wien
ROHDE & SCHWARZ Azerbaijan Liaison Office Baku ISR Plaza, 5
th
floor 340 Nizami Str. 370000 Baku BIL Consortium Ltd. House 33, Block - 'F' Road No. 4, Banani Dhaka-1213
ROHDE & SCHWARZ BELGIUM N.V. Excelsiorlaan 31 Bus 1 1930 Zaventem
+213 (20) 28 10-21 or 22
+213 (21) 69 46 08
-
+541 (14) 331 10 67 +541 (14) 334 51 11
alberto_lombardi@prec-elec.com.ar
+61 (2) 88 45 41 00 +61 (2) 96 38 39 88
lyndell.james@rsaus.rohde-schwarz.com
+43 (1) 602 61 41-0
+43 (1) 602 61 41-14
rs-austria@rsoe.rohde-schwarz.com
+994 (12) 493 31 38 +994 (12) 493 03 14
RS-Azerbaijan@RUS.Rohde-
Schwarz.com
+880 (2) 881 06 53 +880 (2) 882 82 91
-
+32 (2) 721 50 02 +32 (2) 725 09 36
info@rsb.rohde-schwarz.com
Operating manual, 08/2005 0-25 E-1147.1000.04
Page 26
List of Rohde & Schwarz Offices R&S FS315
Bosnia-Herzegovina Brasil
Brunei
Bulgaria
Canada
Chile
China
China
China
China
China
China
Croatia
Cyprus
See Slovenia
ROHDE & SCHWARZ DO BRASIL LTDA. Av. Alfredo Egidio de Souza Aranha, 177, 1° andar - Santo Amaro 04726-170 Sao Paulo – SP
GKL Equipment PTE. Ltd. #11-01 BP Tower 396 Alexandra Road Singapore 119954
ROHDE & SCHWARZ ÖSTERREICH Representation Office Bulgaria 39, Fridtjof Nansen Blvd. 1000 Sofia
ROHDE & SCHWARZ CANADA Inc. 555 March Rd. Kanata, Ontario K2K 2M5
DYMEQ Ltda. Av. Principe de Gales 6225, La Reina, Santiago Chile
ROHDE & SCHWARZ China Ltd. Representative Office Shanghai Central Plaza, Room 807-809 227 Huangpi North Road RM 807/809 Shanghai 200003
ROHDE & SCHWARZ China Ltd. Representative Office Beijing Room 6F, Parkview Center 2 Jiangtai Road Chao Yang District Beijing 100016
ROHDE & SCHWARZ China Ltd. Representative Office Guangzhou Room 2903, Metro Plaza 183 Tianhe North Road Guangzhou 510075
ROHDE & SCHWARZ China Ltd. Representative Office Chengdu Unit G, 28/F, First City Plaza 308 Shuncheng Avenue Chengdu 610017
ROHDE & SCHWARZ China Ltd. Representative Office Xi'an Room 603, Jin Xin International No. 99, Heping Road Xi'an 710048
Rohde & Schwarz China Ltd. Representative Office Shenzhen Central Business Building, No. 88, Room 1901, Fuhua Yilu, Futian District Shenzhen 518026
see Slovenia
HINIS TELECAST LTD. Agiou Thoma 18 Kiti Larnaca 7550
+55 (11) 56 44 86 11 (general)
+55 (11) 56 44 86 25 (sales)
+55 (11) 56 44 86 36
sales-brazil@rsdb.rohde-schwarz.com
+65 (6) 276 06 26 +65 (6) 276 06 29
gkleqpt@singnet.com.sg
+359 (2) 963 43 34 +359 (2) 963 21 97
rs-bulgaria@rsbg.rohde-schwarz
+1 (613) 592 80 00
Toll free: +1 (877) 438 28 80
+1 (613) 592 80 09
cgirwarnauth@rscanada.ca
+56 (2) 339 20 00 +56 (2) 339 20 10
dymeq@dymeq.com
+86 (21) 63 75 00 18 +86 (21) 63 75 91 70
-
+86 (10) 64 31 28 28 +86 (10) 64 37 98 88
info.rschina@rsbp.rohde-schwarz.com
+86 (20) 87 55 47 58 +86 (20) 87 55 47 59
-
+86 (28) 86 52 76 06 +86 (28) 86 52 76 10
rsbpc@mail.sc.cninfo.net
+86 (29) 87 41 53 77 +86 (29) 87 20 65 00
sherry.yu@rsbp.rohde-schwarz.com
+86 (755) 82 03 1198
+86 (755) 82 03 30 70
jessica.lia@rsbp.rohde-schwarz.com
+357 (24) 42 51 78 +357 (24) 42 46 21
hinis@logos.cy.net
E-1147.1000.04 0-26 Operating manual, 08/2005
Page 27
R&S FS315 List of Rohde & Schwarz Offices
Czech Republic
Denmark
Egypt
El Salvador
Estonia
Finland
France
France
Ghana
Greece
Guatemala
Honduras
Hongkong
Hungary
Iceland
India
ROHDE & SCHWARZ - Praha s.r.o. Hadovka Office Park Evropská 2590 / 33c 16000 Praha 6
ROHDE & SCHWARZ DANMARK A/S Ejby Industrivej 40 2600 Glostrup
U.A.S. Universal Advanced Systems 31 Manshiet El-Bakry Street Heliopolis 11341 Cairo
see Mexico (EPSA)
ROHDE & SCHWARZ DANMARK A/S Estonian Branch Office Narva mnt. 13 10151 Tallinn
ROHDE & SCHWARZ Finland Oy Tuivaltie 5 01610 Vantaa
ROHDE & SCHWARZ FRANCE Immeuble "Le Newton" 9-11, rue Jeanne Braconnier 92366 Meudon La Forêt Cédex
Office Rennes 37 Rue du Bignon Bât. A F-35510 Cesson Sevigne
KOP Engineering Ltd. P.O. Box 11012 3rd Floor Akai House, Osu Accra North
MERCURY S.A. 6, Loukianou Str. 10675 Athens
see Mexico
see Mexico
Electronic Scientific Engineering Ltd. 9/F North Somerset House Taikoo Place 979 King's Road Quarry Bay, Hong Kong
ROHDE & SCHWARZ Budapesti Iroda Váci út 169 1138 Budapest
see Denmark
ROHDE & SCHWARZ India Pvt. Ltd. Bangalore Office No. 24, Service Road, Domlur 2nd Stage Extension Bangalore – 560 071
+420 (2) 24 31 12 32 +420 (2) 24 31 70 43
office@rscz.rohde-schwarz.com
+45 (43) 43 66 99 +45 (43) 43 77 44
-
+20 (2) 455 67 44 +20 (2) 256 17 40
an_uas@link.net
+372 (6) 14 31 20 +372 (6) 14 31 21
margo.fingling@rsdk.rohde-schwarz.com
+358 (207) 600 04 00
+358 (207) 60 04 17
info.rsfin@rohde-schwarz.com
+33 (1) 41 36 10 00
+33 (1) 41 36 11 11
-
+33 ( 2) 99 51 97 00 +33 ( 2) 99 51 98 77
-
+233 (21) 77 89 13
+233 (21) 701 06 20
-
+302 (10) 722 92 13 +302 (10) 721 51 98
mercury@hol.gr
+852 (25) 07 03 33 +852 (25) 07 09 25
stephenchau@ese.com.hk
+36 (1) 412 44 60 +36 (1) 412 44 61
rs-hungary@rshu.rohdeschwarz.com
+91 (80) 25 35 23 62 +91 (80) 25 35 03 61
rsindiab@rsnl.net
Operating manual, 08/2005 0-27 E-1147.1000.04
Page 28
List of Rohde & Schwarz Offices R&S FS315
India
India
India
Indonesia
Iran
Ireland
Israel
Israel
Italy
Italy
Japan
Jordan
Kazakhstan
Kenya
ROHDE & SCHWARZ India Pvt. Ltd. Hyderabad Office 302 & 303, Millenium Centre 6-3-1099/1100, Somajiguda Hyderabad - 500 016
ROHDE & SCHWARZ India Pvt. Ltd. 244, Okhla Industrial Estate, Phase-III New Delhi 110020
ROHDE & SCHWARZ India Pvt. Ltd. Mumbai Office B-603, Remi Bizcourt, Shah Industrial Estate, Off Veera Desai Road, Andheri West Mumbai - 400 058
PT ROHDE & SCHWARZ Indonesia Graha Paramita 5th Floor Jln. Denpasar Raya Blok D-2 Jakarta 12940
ROHDE & SCHWARZ IRAN Liason Office Teheran Groundfloor No. 1, 14th Street Khaled Eslamboli (Vozara) Ave. 15117 Tehran
see United Kingdom
Test & Measurement EASTRONICS LTD. 11 Rozanis St. P.O.Box 39300 Tel Aviv 61392
Communications Equipment J.M. Moss Engineering Ltd. 9 Oded Street P.O.Box 967 52109 Ramat Gan
ROHDE & SCHWARZ ITALIA S.p.a. Centro Direzionale Lombardo Via Roma 108 20060 Cassina de Pecchi (MI)
ROHDE & SCHWARZ ITALIA S.p.a. Via Tiburtina 1182 00156 Roma
Rohde & Schwarz 711 bldg., Room 501 (5th floor) 7-11-18 Nishi-Shinjuku Shinjuku-ku Tokyo 160-0023
Jordan Crown Engineering & Trading Co. Jabal Amman, Second Circle Youssef Ezzideen Street P.O.Box 830414 Amman, 11183
ROHDE & SCHWARZ Kazakhstan Representative Office Almaty Pl. Respubliki 15 480013 Almaty
Excel Enterprises Ltd Dunga Road P.O.Box 42 788 Nairobi
+91 (40) 23 32 24 16 +91 (40) 23 32 27 32
rsindiah@nd2.dot.net.in
+91 (11) 26 32 63 81 +91 (11) 26 32 63 73
sales@rsindia.rohde-schwarz
services@rsindia.rohde-schwarz.com
+91 (22) 56 99 38 77 +91 (22) 26 73 20 81
rsindiam@rsnl.net
+62 (21) 252 36 08 +62 (21) 252 36 07
sales@rsbj.rohde-schwarz.com
services@rsbj.rohde-schwarz.com
+98 (21) 872 42 96 +98 (21) 871 90 12
rs-tehran@neda.net
+972 (3) 645 87 77 +972 (3) 648 66 66
david_hasky@easx.co.il
+972 (3) 631 20 57 +972 (3) 631 40 58
jmmoss@zahav.net.il
+39 (02) 957 04-1
+39 (02) 957 04-608
ornella.crippa@rsi.rohde-schwarz.com
+39 (06) 415 98-1
+39 (06) 415 98-308
+81 (3) 59 25 12 88 +81 (3) 59 25 12 90
+962 (6) 462 17 29 +962 (6) 465 96 72
jocrown@go.com.jo
+7 (32) 72 67 23 54 +7 (32) 72 67 23 46
RS-Kazakhstan@RUS-Rohde-
Schwarz.com
+254 (2) 55 80 88 +254 (2) 54 46 79
-
E-1147.1000.04 0-28 Operating manual, 08/2005
Page 29
R&S FS315 List of Rohde & Schwarz Offices
Korea
Latvia
Lebanon
Lebanon
Liechtenstein
Lithuania
Luxembourg
Macedonia
Malaysia
Malta
ROHDE & SCHWARZ Korea Ltd. 83-29 Nonhyun-Dong, Kangnam-Ku Seoul 135-010
ROHDE & SCHWARZ DANMARK A/S Latvian Branch Office Merkela iela 21-301 1050 Riga
ROHDE & SCHWARZ Liaison Office Liaison Office Riyadh P.O.Box 361 Riyadh 11411
Netcom Horsh Tabet P.O.Box 55199 Beirut
see Switzerland
ROHDE & SCHWARZ DANMARK A/S Lithuanian Branch Office Laisves pr.3 04132 Vilnius
see Belgium
NETRA Leukata 2 Skopje
ROHDE & SCHWARZ Malaysia No. 9, Jalan SS 4D/2 Selangor Darul Ehsan 47301 Petaling Jaya
Tektraco International Technology Ltd 121 B'Kara Road San Gwann SGN 08
+82 (2) 3485 1900
+82 (2) 5474 300
sales@rskor.rohde-schwarz.com
service@rskor.rohde-schwarz.com
+371 (7) 50 23 55 +371 (7) 50 23 60
rsdk@rsdk.rohde-schwarz.com
+966 (1) 293 20 35 +966 (1) 456 16 57
chris.porzky@rsd.rohde-schwarz.com
+961-1-48 69 99 +961-1-49 05 11
netcom@inco.com.lb
+370 (5) 239 50 10 +370 (5) 239 50 11
-
+389 (2) 309 28 20 +389 (2) 306 79 20
+60 (3) 78 03 55 68 +60 (3) 78 03 34 39
maryanne@danik.com.my
+356 (21) 37 43 00
oder 37 80 88
+356 (21) 37 66 67
sales@itec.com.mt
Mexico
Mexico
Moldavia
Nepal
Netherlands
New Zealand
Nicaragua
Rohde & Schwarz de Mexico German Centre Oficina 4-2-2 Av. Santa Fé 170 Col. Lomas de Santa Fé 01210 Mexico D.F.
Rohde & Schwarz de Mexico Av. Prol. Americas No. 1600, 2° Piso Country Club Guadalajara, Jal. Mexico CP, 44610
see Romania
ICTC Pvt. Ltd. Hattisar, Post Box No. 660 Kathmandu
ROHDE & SCHWARZ NEDERLAND B.V. Perkinsbaan 1 3439 ND Nieuwegein
Nichecom 1 Lincoln Ave. Tawa, Wellington
see Mexico
+52 (55) 85 03 99 13 +52 (55) 85 03 99 16
latinoamerica@rsd.rohde-schwarz.com
+52 (33) 36 78 91 70 +52 (33) 36 78 92 00
+977 (1) 443 48 95 +977 (1) 443 49 37
ictc@mos.com.np
+31 (30) 600 17 00 +31 (30) 600 17 99
info@rsn.rohde-schwarz.com
+64 (4) 232 32 33 +64 (4) 232 32 30
rob@nichecom.co.nz
Operating manual, 08/2005 0-29 E-1147.1000.04
Page 30
List of Rohde & Schwarz Offices R&S FS315
Nigeria
Norway
Oman
Pakistan
Pakistan
Panama
Papua-New Guinea
Philippines
Poland
Portugal
Romania
Russian Federation
Saudi Arabia
Serbia-Montenegro
Ferrostaal Abuja Plot 3323, Barada Close P.O.Box 8513, Wuse, Victoria Island Off Amazon Street Maitama, Abuja
ROHDE & SCHWARZ NORGE AS Enebakkveien 302 B 1188 Oslo
T&M and Broadcasting Equipment Mustafa Sultan Science & Industry Co.LLC. Way No. 3503 Building No. 241 Postal Code 112 Al Khuwair, Muscat
Head office Islamabad:
Sardar Mansion 21 West Jinnah Avenue Fazal-ul-Haq Road, Blue Area Islamabad
Branch office Karachi:
8-N, Block-6, P.E.C.H.S, Karachi - 75400
see Mexico
see Australia
Rohde & Schwarz (Philippines) Ltd. Unit 2301, PBCom Tower Ayala Ave. cor. Herrera Sts. Makati City
ROHDE & SCHWARZ Österreich SP.z o.o. Przedstawicielstwo w Polsce ul. Stawki 2, Pietro 28 00-193 Warszawa
Rohde & Schwarz Portugal, Lda. Alameda Antonio Sergio, 7-R/C - Sala A 2795-023 Linda-a-Velha
ROHDE & SCHWARZ Representation Office Bucharest
89 Eroii Sanitari Blvd., 050472 Bucuresti, Sector 5
ROHDE & SCHWARZ Representative Office Moscow ul. 1-st Brestskaya 29, 9 125047 Moscow
Rohde & Schwarz Liaison Office Riyadh c/o Haji Abdullah Alireza Co. Ltd. P.O.Box 361 Riyadh 11411
ROHDE & SCHWARZ Representative Office Belgrade Tose Jovanovica 7 11030 Beograd
th
floor
+234 (9) 413 52 51 +234 (9) 413 52 50
fsabuja@rosecom.net
+47 (23) 38 66 00 +47 (23) 38 66 01
-
+968 63 60 00 +968 60 70 66
m-aziz@mustafasultan.com
+92 51 111 050 050
+92 51 2879 298
+92 21 4398554 47 48
+92 21 4398549
+63 (2) 753 14 44 +63 (2) 753 14 56
+48 (22) 860 64 94 +48 (22) 860 64 99
rs-poland@rspl.rohde-schwarz.com
+351 (21) 415 57 00 +351 (21) 415 57 10
info@rspt.rohde-schwarz.com
+40 (1) 411 20 13
+40 (21) 410 68 46
rs-romania@rsro.rohde-schwarz.com
+7 (095) 981 35 60 +7 (095) 981 35 65
rs-russia@rsru.rohde-schwarz.com
+966 (1) 293 20 35
+966 (1) 466 16 57
chris.porzky@rsd.rohde-schwarz.com
+381 (11) 305 50 25 +381 (11) 305 50 24
-
E-1147.1000.04 0-30 Operating manual, 08/2005
Page 31
R&S FS315 List of Rohde & Schwarz Offices
Singapore
Slovak Republic
Slovenia
South Africa
South Africa
Spain
Sri Lanka
Sudan
Sweden
Switzerland
Syria
Taiwan
Tanzania
Thailand
Trinidad &Tobago
Rohde & Schwarz Regional Headquarters Singapore Pte. Ltd. 1 Kaki Bukit View #04-01/07 Techview Singapore 415 941
Specialne systemy a software, a.s. Svrcia ul. 841 04 Bratislava
ROHDE & SCHWARZ Representation Ljubljana Tbilisijska 89 1000 Ljubljana
Protea Data Systems (Pty.) Ltd. Communications and Measurement Division Private Bag X19 Bramley 2018
Protea Data Systems (Pty.) Ltd. Cape Town Branch Unit G9, Centurion Business Park Bosmandam Road Milnerton Cape Town, 7441
ROHDE & SCHWARZ ESPANA S.A. Salcedo, 11 28034 Madrid
Dynatel Communications (PTE) Ltd. 451/A Kandy Road Kelaniya
SolarMan Co. Ltd. P.O.Box 11 545 North of Fraouq Cementry 6/7/9 Bldg. 16 Karthoum
ROHDE & SCHWARZ SVERIGE AB
Flygfältsgatan 15 128 30 Skarpnäck
Roschi Rohde & Schwarz AG Mühlestr. 7 3063 Ittigen
Electro Scientific Office Baghdad Street Dawara Clinical Lab. Bldg P.O.Box 8162 Damascus
Rohde & Schwarz Taiwan (Pvt.) Ltd. Floor 14, No. 13, Sec. 2, Pei-Tou Road Taipei 112
SSTL Group P.O. Box 7512 Dunga Street Plot 343/345 Dar es Salaam
Test & Measurement: Schmidt Electronics (Thailand) Ltd. 202 Le Concorde Tower, 23
rd
floor, Ratcha­daphisek Road, Huaykwang, Bangkok 10320
see Mexico
+65 (6) 846 1872 +65 (6) 846 1252
rsca@rssg.rohde-schwarz.com
+421 (2) 65 42 24 88 +421 (2) 65 42 07 68
stefan.lozek@special.sk
+386 (1) 423 46 51 +386 (1) 423 46 11
rs-slovenia@rssi.rohde-schwarz.com
+27 (11) 719 57 00 +27 (11) 786 58 91
unicm@protea.co.za
+27 (21) 555 36 32 +27 (21) 555 42 67
unicm@protea.co.za
+34 (91) 334 10 70 +34 (91) 329 05 06
rses@rses-rohde-schwarz.com
+94 (1) 90 80 01 +94 (1) 91 04 69
dyna-svc@sltnet.lk
+249 (11) 47 31 08 +249 (11) 47 31 38
solarman29@hotmail.com
+46 (8) 605 19 00 +46 (8) 605 19 80
info@rss.se
+41 (31) 922 15 22 +41 (31) 921 81 01
sales@roschi.rohde-schwarz.com
+963 (11) 231 59 74 +963 (11) 231 88 75
memo@hamshointl.com
+886 (2) 28 93 10 88 +886 (2) 28 91 72 60
celine.tu@rstw.rohde-schwarz.com
+255 (22) 276 00 37 +255 (22) 276 02 93
sstl@twiga.com
+66 (2) 69 41 47 05
+66 (2) 69 41 476
kamthoninthuyot@schmidtthailand.com
Operating manual, 08/2005 0-31 E-1147.1000.04
Page 32
List of Rohde & Schwarz Offices R&S FS315
Tunisia
Turkey
Ukraine
United Arab Emirates
United Arab Emirates
United Arab Emirates
United Kingdom
Uruguay
USA
USA
USA
Vietnam
TELETEK 71, Rue Alain Savary Residence Alain Savary (C64) 1003 Tunis
ROHDE & SCHWARZ International GmbH Liaison Office Istanbul Bagdad Cad. 191/3, Arda Apt. B-Blok 81030 Selamicesme-Istanbul
ROHDE & SCHWARZ Representative Office Kiev 4, Patris Loumoumba ul 252042 Kiev
ROHDE & SCHWARZ International GmbH Liaison Office Middle East P.O. Box 31156 Abu Dhabi
Professional Mobile Radio ROHDE & SCHWARZ Bick Mobile Communication P.O.Box 17466 Dubai
Service Center for the Middle East ROHDE & SCHWARZ Emirates L.L.C. ESNAAD Premises at Mussafah P.O.Box 31156
Abu Dhabi
ROHDE & SCHWARZ UK Ltd. Ancells Business Park Fleet Hampshire GU 51 2UZ
AEROMARINE S.A. Cerro Largo 1497 11200 Montevideo
Service and Calibrationa Center: Rohde & Schwarz, Inc. 8661-A Robert Fulton Drive Columbia, MD 21046-2265
R&D and Application Support Rohde & Schwarz Inc. 8905 SW Nimbus Ave., Suite 240 Beaverton, OR 97008
Central Regional Office: Rohde & Schwarz Inc. 8080 Tristar Drive Suite 120 Irving, Texas 75063
ROHDE & SCHWARZ Representative Office Vietnam, Unit 807, 8/F, Schmidt Tower 239 Xuan Thuy Road Cau Giay District Hanoi
+216 (71) 77 33 88 +216 (71) 77 05 53
+90 (216) 385 19 17 +90 (216) 385 19 18
rsturk@superonline.com
+38 (044) 268 83 64 +38 (044) 268 60 55
rsbkiev@public.ua.net
+971 (2) 633 56 70
+971 (4) 633 56 71
michael.rogler@rsd.rohde-schwarz.com
+971 (4) 883 71 35 +971 (4) 883 71 36
+971 (2) 55 49 411 +971 (2) 55 49 433
rsuaeam@emirates.net.ae
+44 (1252) 81 88 88 +44 (1252) 81 14 47
sales@rsuk.rohde-schwarz.com
+598 (2) 400 39 62 +598 (2) 401 85 97
mjn@aeromarine.com.uy
+1 (410) 910 50 02 +1 (410) 910 79 31
rsatv@rsa.rohde-schwarz.com
rsacomms@rsa.rohde-schwarz.com
+1 (503) 40 34 700 +1 (503) 40 34 701
info@rsa.rohde-schwarz.com
+1 (469) 713 53 00 +1 (469) 713 53 01
info@rsa.rohde-schwarz.com
+84 (4) 834 20 46
svnhn@schmidtgroup.com
E-1147.1000.04 0-32 Operating manual, 08/2005
Page 33

R&S FS315 Applications for the R&S FS315

1 Introduction
This chapter
Further information
Chapter 1 describes the uses of the R&S FS315 and also provides informa­tion on the storage and transportation procedures that should be adopted for the instrument. Warranty conditions are also explained.
Chapter 2 contains an overview of the R&S FS315’s control elements, indica­tors, etc.
Chapter 3 describes how to put the R&S FS315 into operation.
1.1 Applications for the R&S FS315
Uses
Performance features
RF signals are used by telecommunication systems to transmit information. The transmitted power must remain with strictly specified frequency bands, otherwise interference with other services on adjacent channels would oc­cur.
To ensure that the stringent requirements laid down for RF communication systems are met, it is essential to have measuring equipment that can pre­cisely measure and analyze the modulated and unmodulated signals in­volved.
The Spectrum Analyzer R&S FS315 has all the performance features re­quired to perform precise level and frequency measurements.
The key features are:
High-Quality RF characteristics
Operation from keypad
Remote control via PC
Resolution bandwidth from 200 Hz to 1 MHz Frequency counter with 1 Hz resolution Maximum input level +33 dBm Ergonomic user interface
All functions and measurement parameters can be set via menus using a keypad and a rotary knob.
The current trace, along with the key parameters and status indicators needed to evaluate the results, can be read at a glance from the TFT colour screen.
The R&S FS315 is equipped as standard with a USB interface so that it can communicate with a PC. All functions and parameters can be set.
Operating manual, 08/2005 1-33 E-1147.1000.04
Page 34

Supplied Accessories R&S FS315

1.2 Supplied Accessories
Content
1 power cord Europe
1 country specific power cord (if different from Europe)
1 manual German/English
1 USB cable
1 CD (Content: operating manual German/English, data sheet German/English PC software R&S FS315-K1, Acrobat Reader™)
1.3 Warranty
Warranty conditions
Returning a defective R&S FS315
Indicating claims under the warranty
The General Terms and Conditions of Rohde & Schwarz shall apply.
Please observe the packaging instructions ( 0-18). You will find the ad­dresses of your nearest R&S representative and of the support center at the front of the manual.
We would also ask you to state clearly if you are making a claim for repairs under warranty, preferably by including your delivery note. Repair requests that do not explicitly refer to the warranty will, in the first instance, incur charges. If your warranty has expired, we will, of course, repair your R&S FS315 in accordance with our general installation and service conditions.
E-1147.1000.04 1-34 Operating manual, 08/2005
Page 35

R&S FS315 Front View

2 Control Elements
2.1 Front View
14 13 12 11 10
1 ON/STANDBY switch 2 ON/STANDBY indicator 3 BACK/SYS key 4 ESC/CANCEL key 5 ENTER key 6 Cursor keys
7 Cursor keys
Operating manual, 08/2005 2-35 E-1147.1000.04
1 2 3 4 5 6 7 8
8 RF IN, RF input connector 9 RF OUT, RF output connector 10 Unit keys 11 Rotary knob 12 Numerical keys
3 / 4
6 / 5
13 Function keys 14 Screen
9
Page 36

Rear View R&S FS315

2.2 Rear View
25
24
23
22 21
20
19
15 Input connector for external trigger 16 Connector for external USB host 17 Output connector for USB device
g. printer)
(e.
18 Power supply connector 19 AC line fuses
171615
18
20 AC line switch 21 Connector for external monitor 22 Connector for external keyboard 23 Output of internal/external reference
(10 MHz)
24 Input for external reference (10 MHz) 25 Headphone output
E-1147.1000.04 2-36 Operating manual, 08/2005
Page 37

R&S FS315 Unpacking the R&S FS315

3 Putting the R&S FS315 into Operation

This chapter Further
information
Caution
Chapter 3 describes how to put the R&S FS315 into operation.
Chapter 2 contains an overview of the R&S FS315‘s control elements, indica­tors, etc.
Chapter 4 “Getting started”, takes you step-by-step through a number of sim­ple measurements.
Chapter 8 is an in-depth description of the instrument’s interfaces.
Before putting the R&S FS315 into operation, make the following checks:
Ensure that the ventilation holes are free of obstructions. Ensure that there are no unsuitable signal voltages connected to the
input.
The R&S FS315’s outputs may not be overloaded and correct polarity
must be ensured.
The instrument may be damaged if the above checks are not performed.
3.1 Unpacking the R&S FS315
Recommended procedure
When you unpack the R&S FS315, proceed as follows:
1. Remove the R&S FS315 from its packaging and check that the delivery
is complete using the accessory list ( 1-34).
2. Carefully check the R&S FS315 for any damage.
3. If there is damage, immediately contact the carrier who delivered the
instrument. Under these circumstances, it is essential to keep the box in which the R&S FS315 was transported and the packaging material ( 0-
18).

3.2 Setting up the Instrument

Caution
Setup instructions
Operating manual, 08/2005 3-37 E-1147.1000.04
There is a risk of injury from sharp edges and becoming wedged between the setting lever and the handle.
The R&S FS315 must be assembled on a firm, level surface only. The in­strument has a carrying handle which is also used for various setup options. This handle can be moved into any position, depending on the particular field of application.
Page 38
Setting up the Instrument R&S FS315
Setting the handle 1. Place the thumb and two fingers around the side-mounted setting lever
and loosen it with a turning action.
2. Slide the handle lengthwise while twisting it radially in steps of about 12°.
3. Close the setting lever by pressing on the outer surface.
Caution: There is a risk of injury from sharp edges and becoming
wedged between the setting lever and the handle.
4. Remove the protective film from the screen glass if necessary.
Caution: Use no pointed or sharp objects.
E-1147.1000.04 3-38 Operating manual, 08/2005
Page 39

R&S FS315 Connecting the R&S FS315 to the AC Line

3.3 Connecting the R&S FS315 to the AC Line
Caution
The R&S FS315 meets the requirements for Safety Class I to DIN EN 61010­1/IEC 61010-1, e.
g. all metal parts that can be touched or accessed without
removing the enclosure are connected to the protective ground of the power supply network. The connection to the AC line is made via a power cord and a connector with a protective ground contact.
Automatic AC line voltage detection
Connecting the AC line
When the R&S FS315 is connected to the AC line, it automatically sets itself to the correct voltage (range: AC voltage 100 V to 240 V, AC frequency 50 Hz to 60 Hz). There is no need to set the voltage manually or change the fuse.
1. Use the supplied power cord to connect the R&S FS315 to the AC line.
The power supply connector [18] is at the rear of the instrument.
2. Connect the power cord to the AC line.
3.4 Switching On the R&S FS315
Hazard
AC line switch on the rear panel
The AC line is still connected to the R&S FS315 when the instrument is in the standby mode.
The R&S FS315 is connected to the AC line via power supply connector [18]. AC line switch [20] which isolates the R&S FS315 from the AC line is located next to the power supply connector.
ON/STANDBY switch on the front panel
ON operating state
After switching on the R&S FS315 by means of the AC line switch [20] at the rear panel, it is in standby mode and the yellow LED [2] comes on. If you press the ON/STANDBY switch [1], the instrument is switched on and the green LED [2] comes on.
STANDBY operating state
To switch the R&S FS315 from the operating mode to standby mode, press the ON/STANDBY switch [1] for approx. 2 seconds. After switching off the ON/STANDBY switch [1] the yellow LED [2] comes on.

Switching on the R&S FS315

1. Press the AC line switch [20] on the rear panel in the I position.
2. Press the ON/STANDBY switch [1] on the front panel.
The green ON LED [2] should come on.
Operating manual, 08/2005 3-39 E-1147.1000.04
Page 40
Function Test R&S FS315
3.5 Function Test
Caution

Function test

In error case
Note
When performing service procedures, follow the requirements of VDE 0701. Only properly qualified technicians are allowed to repair the R&S FS315. The instrument does not contain any parts the operator can repair.
After the R&S FS315 has been switched on ( 3-39), the green LED ON [2] on the instrument’s front panel comes on. During booting, the "R&S Smart Instruments" symbol appears on a blue screen background [14]. Booting the R&S FS315 is completed when the measurement mask ( 5-50) and the trace appear. If the measurement trace does not appear on the screen, the sweep time ( 6-126) may have been too long.
If the measurement mask ( 5-50) does not appear and the red or the red or green LED flash alternately, switch the R&S FS315 off and on. In case the error continues, return the instrument to our service center for checking. If the instrument shows an error message after booting, then follow the instructions in the chapter “Error messages” ( 9-272).
If the measurement trace does not appear on the screen shortly after booting, the sweep time may have been too long. In this case, reset the R&S FS315 by means of PRESET ( 6-169). If the trace still fails to appear, an error oc­curred and our service center must check the instrument.
3.6 EMC
EMC requirements
The R&S FS315 meets the EMC Directive 89/336/EEC (applied standards EN 55011 Class B and EN 61326).
To prevent EMI, the R&S FS315 may only be operated with its enclosure closed. Only appropriately shielded signal and control cables may be used. External units, such as keyboard, printer or monitor, that are to be connected to the R&S FS315 must comply with EMC directives.
E-1147.1000.04 3-40 Operating manual, 08/2005
Page 41

R&S FS315 Connecting an External Keyboard

[
]
[
[
]
3.7 Connecting an External Keyboard
Caution
Use
Key assignment for operating the R&S FS315
Only connect the keyboard when the R&S FS315 is off or in the STANDBY mode, otherwise malfunctions may occur at a later date.
You can connect an external PC keyboard via the 6-pin PS/2 KEYBOARD connector [22] on the R&S FS315’s rear panel. The keyboard makes it easier to enter file names. The keyboard allows data entry as well as operation of the R&S FS315.
The keyboard is detected automatically when it is connected.
[ F10 ] ⇐ | ⇒ [ F11 ]
F1 ] ... [ F7
[ A ] ... [ D ]
[ F9 ]
[ Esc ]
Enter
[ ], [ ]
[ ], [ ]
0 ] ... [ 9 ], [ . ], [ - ]
Operating manual, 08/2005 3-41 E-1147.1000.04
Page 42

Connecting a USB Stick R&S FS315

3.8 Connecting a USB Stick
Use
Caution
To ensure that the USB stick is detected by the R&S FS315, the stick must be formatted in the FAT32 file system.
You can connect an external USB stick to the USB device interface [17] at the rear of the R&S FS315. The USB stick is an extension of the internal mem­ory. You can use it to save or load instrument settings, to print into a file on the USB stick or to transfer trace data to a PC. You can also use it to load transducer lists ( 6-164) that have been created using the PC software, to the instrument.
E-1147.1000.04 3-42 Operating manual, 08/2005
Page 43

R&S FS315 Level and Frequency Measurements

4 Getting Started
This chapter
Further information
Chapter 4 uses a number of simple measurements to illustrate how to oper­ate the R&S FS315.
For the following example, the initial setting for instrument is the default set­ting (factory). This is set by pressing the PRESET key in the menu ( 6-169). The full default setup is described in chapter 6.
Chapter 5 contains an in-depth explanation of the basic operating steps, for example selecting menus and setting parameters. The layout of the screen and the information displayed on the screen are also described.
Chapter 6 describes all the R&S FS315‘s menus and the associated func­tions in detail.
4.1 Level and Frequency Measurements
4.1.1 Measurement Task
Caution
Measurement problem
The input stage of the R&S FS315 can be destroyed by overloads or DC components. If there is a possibility that the limits specified in the data sheet may be violated, the input must be protected with an attenuator and/or a DC block.
Determining the level and frequency of a signal is one of the most common measurements a spectrum analyzer is used to make. Often, when making these measurements on an unknown signal, the PRESET settings (factory) are chosen as a suitable initial setup ( 6-169).
Solution
The center frequency (CENTER), the SPAN and the MARKER functions play a key role in level and frequency measurements.
Operating manual, 08/2005 4-43 E-1147.1000.04
Page 44
Level and Frequency Measurements R&S FS315
4.1.2 Measurement Procedure
Introduction
Measurement steps
In this example, a signal with a frequency of 200 MHz and a level of -30 dBm is applied to the RF input [8]. The center frequency and the span are set manually.
Perform the following steps:
1. Reset the R&S FS315.
• Press the
• Select
• Press the
key.
in the bottom menu bar using the
function key.
cursor keys.
2. Apply the signal.
3. Set the center frequency (CENTER) to 200 MHz.
• Select
in the bottom menu bar using the
• Press the
• Enter
using the numerical keys. Terminate the entry
by pressing the unit key
function key.
.
cursor keys.
4. Reduce the SPAN to 1 MHz.
• Stay in the
menu.
• Press the
• Enter
the unit key
function key.
from the numerical keys. Terminate the entry by pressing
.
5. Measure the level and frequency with the marker.
• Select
• Press the
• Press the
marker jumps to the signal peak. Turn the rotary knob
in the bottom menu bar using the
cursor keys.
function key.
function key in the submenu that appears. The
to
change the position of the marker.
6. Frequency measurements with the built-in frequency counter.
• Press the
function key in the submenu. You can
change the resolution of the frequency counter in the same submenu
with the
function key.
E-1147.1000.04 4-44 Operating manual, 08/2005
Page 45

R&S FS315 Measuring the Frequency Response of a Twoport

4.2 Measuring the Frequency Response of a Twoport

4.2.1 Measurement Task

Caution
Initial situation
Solution
If the DUT is an amplifier, the input stage of the R&S FS315 can be destroyed by overloads or DC components. If there is a possibility that the limits speci­fied in the data sheet could be violated, the input must be protected with a power attenuator and/or a DC block.
It is important to ensure that the set output power of the tracking generator does not exceed the maximum permissible input power of the DUT.
Determining the frequency response of a twoport (e.g. filter, amplifier) is a common measurement task and requires the built-in tracking generator. The measurement described below is performed based on the PRESET settings (factory) of the R&S FS315 ( 6-169).
To measure the frequency response of a twoport, the DUT must be con­nected between the output of the tracking generator [9] and the input of the spectrum analyzer [8]. With directional DUTs (e.g. amplifiers), make sure that the input and output of the DUT are connected correctly:
DUT input Generator output [9]
DUT output Analyzer input [8]
You should select a span that will make the transmission characteristics of the DUT visible. If you want the effect of the cables or an attenuator to be omitted from the measurement result, you can perform calibration.

4.2.2 Measurement

Introduction
Operating manual, 08/2005 4-45 E-1147.1000.04
In the example below, a bandpass filter with a center frequency of 1 GHz and a bandwidth of 80 MHz is to be measured.
Page 46
Measuring the Frequency Response of a Twoport R&S FS315
Measurement steps
Perform the following steps:
1. Reset the instrument.
• Press the
• Select
• Press the
key.
in the menu bar using the cursor keys.
function key.
2. Set the center frequency (CENTER) to 1 GHz.
• Select
• Enter
the unit key
in the menu bar using the cursor keys.
using the numerical keys. Complete the entry by pressing
.
3. Reduce the SPAN to 150 MHz.
• Stay in the
• Press the
• Enter
by pressing the unit key
menu.
function key.
using the numerical keys. Complete the entry
.
4. Switch on the tracking generator.
• Select
• Open the
• Press the
• Turn the rotary knob
in the menu bar using the cursor keys.
submenu.
function key.
to select the “Tracking Generator” set-
ting.
5. Calibrate the measurement.
• Use cables to connect the output of the tracking generator [9] to the
input of the spectrum analyzer [8].
• Press the
function key.
• Remove the connection between the input and output.
6. Connect the DUT between the N connectors on the front panel.
• Connect the DUT between the N connectors on the front panel. With
directional DUTs (e. g. amplifiers), make sure that the input and out­put of the DUT are connected correctly:
DUT input Generator output [9]
DUT output Analyzer input [8]
7. Change the position of the trace.
• Press the
function key and change the value using the key-
board, rotary knob or cursor keys.
E-1147.1000.04 4-46 Operating manual, 08/2005
Page 47

R&S FS315 Making Entries from the Keypad

5 Manual Operating Concept

This chapter
Further information
Chapter 5 contains an overview of the R&S FS315’s basic manual operating concept. This includes a description of the keypad, the screen layout, menu operation and how to set parameters. There is an overview of the menus and functions at the end of this chapter.
Chapter 4 contains a brief introduction that takes you step-by-step through some simple measurements.
Chapter 6 contains an in-depth description of the menu functions.
Chapter 7 contains note for remote control the R&S FS315 via a USB inter­face.
5.1 Making Entries from the Keypad
Introduction
The R&S FS315 is operated using menus in conjunction with a keypad and a rotary knob. The keypad comprises the following sections:
Numerical keys [12] Unit keys [9] Cursor keys [6, 7] Function keys [13] Action keys [4, 5] BACK/SYS key [3]
5.1.1 Numerical Keys
Function
...
The numerical keys are used to enter numerical parameters.
− Inserts one of the digits “0” to “9” at the cursor position.
− Inserts a decimal point “.” at the cursor position.
− Inserts a minus sign “-” at the cursor position.
5.1.2 Unit Keys
Function
The unit keys are used to assign the appropriate unit to the number that has been entered, simultaneously terminating the entry.
− Assigns GHz when a frequency setting is being made
− Assigns s when a time setting is being made
− Assigns MHz when a frequency setting is being made
− Assigns ms when a time setting is being made
− Assigns kHz when a frequency setting is being made
− Assigns µs when a time setting is being made
− Assigns Hz when a frequency setting is being made
Note
Operating manual, 08/2005 5-47 E-1147.1000.04
In the case of all other entries, the unit keys assume the same function as the Enter key. ( 5-49).
Page 48
Making Entries from the Keypad R&S FS315
5.1.3 Rotary Knob
Function
As well as the numerical keys and the cursor keys, the rotary knob is also used to set parameters.
The rotary knob has several functions:
− Incrementing (turn clockwise) or decrementing (turn counter-
clockwise) numerical instrument parameters using a specified step size.
− Positioning markers, limits, etc on the screen.
5.1.4 Cursor Keys
Function
As well as the numerical keys and the rotary knob, the cursor keys are also used for entering parameters and to navigate through the menus.
The cursor keys have the following functions:
− Navigating through menus and selection fields
− The 3 or4 cursor keys move the cursor to the position you want within
the numerical editing line.

− The 6 or 5 cursor keys increment or decrement numerical parameter

entries.
5.1.5 Function Keys
Function
In the function area, various instrument functions are displayed depending on which menu has been selected. The displayed instrument functions are assigned to the seven function keys down the right side of the screen. This means that each function key can have a variety of functions ( 5-52).
When a function key is pressed, various responses can be elicited:
− Immediate activation of a function or toggling between settings
− Entry of a value or selection of a setting/function
− Confirmation of a new setting and opening of a new menu item
− Branching to a submenu
E-1147.1000.04 5-48 Operating manual, 08/2005
Page 49
R&S FS315 Making Entries from the Keypad
5.1.6 Action Keys
Function
The action keys are used to complete menu-guided settings.
− With numerical entries, pressing this key completes an entry without
closing the entry field.
− With a selection field, the setting is adopted and the selection window is
closed.
− Pressing this key assigns Hz as the unit of measurement when a fre-
quency setting is being made. Note: Pressing a unit key will also complete the entry of setting data.
− Pressing this key closes the entry field or selection field after data has
been entered. The new value is set.
5.1.7 BACK/SYS Key
Function 1
SYS
If the entry field is closed the BACK/SYS [3] key will open or close the sys­tem menu (SYS).
− When you press the key, the measuring menu is blanked out and re-
placed by the SYS menu. Other functions are assigned to the function keys [13] and the measurement diagram is replaced by the system pa­rameters ( 6-167).
− By repeatedly pressing the key, you can quit the SYS menu and accept
the new settings.
Function 2
If the entry field is open the BACK/SYS [3] key can be used to correct numeri-
cal inputs.
BACK
− If the parameter entry field is open, the key functions as a BACK key (i.e.
a value entered using the keyboard can be deleted again one character at a time). The key has no effect if the value in an entry field was changed using the cursor keys or rotary knob.
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Page 50

Screen Display R&S FS315

5.2 Screen Display
Introduction
Screen layout
The screen [14] provides on-going information about events and the parame­ters associated with the selected measurement functions. The display mode for the measurement results, the lettering of the function keys and the type of menu all depend on the current settings.
The screen is divided into three areas:
I Diagram area II Menu area III Function area
I
III
II
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R&S FS315 Screen Display
5.2.1 Diagram Area
Displays in the diagram area
The diagram area contains:
Measurement diagrams and the associated scales (h) and traces (e) Measured value displays, e.
g. display line (d) and markers (c)
 Parameter field (b) and status displays (a)  Selection fields and entry fields that come up on the screen (g)  Error messages that come up on the screen (f)
b
a
c
d
h
e
f
g
Status display
Parameter field
Measurement diagram
The status display provides the following information:
Offs - level offset is on MIN - current trace display mode, e.
The following are displayed in the parameter field:
g. min hold
Ref: - upper diagram limit (reference level) Att: - - RF input attenuation RBW: - current resolution bandwidth SWT: - sweep speed
A 10 x 8 grid is superimposed on the diagram area to make it easier to ana­lyze traces.
The following settings are displayed in the measurement diagram: SAMPLE - selected detector (Min Peak, Max Peak, Sample,
RMS, Average)
M1: - marker 1 plus marker position and level M2: - marker 2 plus marker position and level CH Pwr: - channel power at set channel bandwidth TG: - level, frequency and calibration of tracking generator
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Screen Display R&S FS315
5.2.2 Menu Area
Menu display
Menus for setting the measurement parameters and the measurement func­tions are displayed in the menu area. The selected menu is highlighted, e. FREQ/SPAN menu:
5.2.3 Function Area
Displaying the current assignment for the function keys
When a menu is selected, the associated instrument functions are displayed in the function area.
The displayed instrument functions are assigned to the seven function keys down the right-hand side of the screen. If a key in the function area does not have any lettering, the key has not been assigned a function in the menu in question. If a key has lettering, but not in full brightness, the key has tempo­rarily (current setting) not been assigned a function.
g.
Activated function key
De-activated function key
No function assigned
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Page 53

R&S FS315 Calling and Changing Menus

5.3 Calling and Changing Menus
Introduction
Calling or changing menus
Operating the R&S FS315 is menu-guided. All the menus used to set the measurement parameters and measurement functions are displayed in the menu area. The instrument functions associated with any menu you select are displayed in the function area.
Pressing a function key has one of the following effects:
Direct execution of an instrument function Opening of entry or selection windows Opening of submenus
The 3 or 4 cursor keys [6] are used for menu navigation.
1. Select a menu, e.
g. , with the
3
or
[6] cursor keys.
4
The menu name is highlighted and the appropriate function is assigned to the function keys [13].
Note
A double arrow ⇒ pointing to a function key, e. pressing this key will call a submenu.
g. , tells you that
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Calling and Changing Menus R&S FS315
Calling/quitting submenus
2. Press the
function key in the
menu.
The MARKER 1 submenu opens and the new functions are assigned to the function keys [13].
3. Press the
function key in the submenu.
The submenu is closed and the previous functions remain assigned to the function keys [13].
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Page 55

R&S FS315 Setting Parameters

5.4 Setting Parameters
There is a choice of methods
Parameters can be set in a number of ways:
Direct selection of an instrument function (function key) Selecting settings from selection fields Entering numerical parameters in entry fields
The numerical keys [12], the unit keys [9], the rotary knob [11], the cursor keys [6, 7] and the action keys [4, 5] can all be used to select and enter in­strument parameters.

5.4.1 Direct Selection of Instrument Functions

Introduction
e.
g. :
Displaying marker 1 ( 6-95)
When you select a menu, various instrument functions are displayed in the function area. Some instrument functions can be set directly by pressing a function key.
The function key you select is highlighted.
1. Press the
function key in the submenu.
Marker 1 is turned on and placed on the trace maximum. The M1 marker values are displayed in the parameter field.
2. Press the
function key in the submenu.
Marker 1 moves from the maximum value of the trace to the next lowest value to the right of the maximum value.
3. Press the
function key in the submenu.
Marker 1 disappears from the diagram area and the M1 marker values are blanked out.
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Setting Parameters R&S FS315
5.4.2 Selecting Settings
Introduction
e.
g. :
Setting the level display range ( 6-86)
When you select a menu, a number of instrument functions are displayed in the function area. If certain function keys are then pressed, a selection field is displayed in the diagram area. You can then choose and activate any of the settings offered for selection.
The function key you select is highlighted.
1. Press the
A selection field containing the available settings is displayed. The de­fault setting is “80 dB”.
function key in the menu.
Note
2. Select a level display range with rotary knob
3. Press the ENTER key [5] to close the selection field.
The new setting is saved.
If you want to keep the old setting, close the entry field with the ESC/CANCEL key [4].
If there are more than five options, a scroll bar is displayed on the right next to the selection field. At any one time, only five options are displayed on the screen.
[11].
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R&S FS315 Setting Parameters

5.4.3 Entering Numerical Parameters

Introduction
When you select a menu, a number of instrument functions will be displayed in the function area. If you press certain function keys, an entry field will be displayed in the diagram area. The function key you select is highlighted.
There are two ways of entering numerical parameters:
Entry of a number with the numerical keys Entry of a number with the cursor keys and rotary knob
The entry with the cursor keys and rotary knob is useful if you only have a rough idea of what the measurement parameters should be. As the screen is continuously updated as the value is varied, a search is possible.
5.4.3.1 Entry with the Numerical Keys
e. g. : Setting the center frequency ( 6-73)
1. Press the
An entry field containing the current setting is displayed in the top left­hand corner.
function key in the menu.
Entering
a new value
2. Overwrite the old value, e.
g. 1234 MHz, with the numerical keys [12].
The frequency is adopted immediately in the selected unit and set by the R&S FS315. The entry window remains open and the value can be overwritten by a new value at any time.
Note: If you press ENTER instead of a unit key, the smallest unit will be assigned (e.g. Hz).
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Setting Parameters R&S FS315
Correcting an entry 3. Press the SYS/BACK key [3] repeatedly until you have deleted the incor-
rect digit (e.g. the second two in 1.224 MHz).
2 ×
Then enter the correct final digits.
Terminating
parameter entry
Note
entries
Invalid
4. Press the ESC/CANCEL key [4] to abort the entry.
The old value is retained. The entry window is closed.
• Invalid parameter entry (e.g. 1234 GHz): If the entered value is outside
the permissible range, the largest or smallest permissible value is set and a message containing the value range appears below the entry win­dow.
When numbers are displayed, only the digit sequences 1 to 999 appear be­fore the decimal point. In other words, if the digit sequence <5000> and the unit <kHz> are entered, <5 MHz> appears in the display. Trailing zeros will be eliminated in the display area.
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R&S FS315 Setting Parameters
5.4.3.2 Entry using the Cursor Keys and the Rotary Knob
e. g. : Setting the span ( 6-73)
Entering
a new value
1. Press the
An entry field containing the current setting appears in the top left-hand corner.
The step width for the change is different for the cursor keys and rotary knob. The cursor keys change the value in large steps, whereas the ro­tary knob allows a more precise setting. The span is changed in the fol­lowing preset step widths:
Cursor keys: Steps 1-2-5-10
function key in the menu.
Note
Rotary knob: The third digit is changed.
2a. Press the cursor key
Pressing the the 6 cursor key once decrements the value by one.
cursor key once increments the value by one; pressing
5
[7] once so that a span of 2 GHz is displayed.
6
1 ×
2b. Turn the rotary knob [11] to left until you obtain the value you want, e. g.
1.95 GHz.
Turning clockwise increases the value; turning counter-clockwise re­duces the value.
When you enter the center frequency, you can specify the step width of the rotary knob. ( 6-80). In this case, the value is incremented or decremented in accordance with the specified step width, with the cursor always moving to the highest value, irrespective of its earlier position.
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Setting Parameters R&S FS315
Terminating
entries
3. Press the ESC/CANCEL key [4] to abort the entry.
The old value is retained. The entry window is closed.
parameter entry
Note
Invalid
If the limit value is reached, the numeric value in the entry window remains the same and is neither increased nor decreased. No error message is is­sued.
When numbers are displayed, only the digit sequences 1 to 999 appear be­fore the decimal point. In other words, if the digit sequence <5000> and the unit <kHz> are entered, <5 MHz> appears in the display. Trailing zeros will be eliminated in the display area.
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Page 61

R&S FS315 Overview of all Menus and Functions

5.5 Overview of all Menus and Functions
5.5.1 Spectrum Analyzer
5.5.1.1 FREQ/SPAN Menu
Function key assignment
Entering the center frequency ( 6-73)
Open submenu:
Display modes for the frequency axis
Entering the start frequency ( 6-79)
Entering the stop frequency ( 6-79) Open submenu:
Entering the step width of the center frequency
Quitting the submenu
Entering the span ( 6-75)
Displaying the whole frequency range ( 6-76)
Switching over to the ZERO SPAN ( 6-77)
Restoring the previous setting ( 6-77)
Reducing the span ( 6-78)
Increasing the span ( 6-78)
Signal tracking ( 6-82)
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Quitting the submenu
Setting the step size manually ( 6-81)
Setting the step size automatically ( 6-81)
Setting the step size to the center frequency ( 6-81)
Setting the step size to the marker frequency ( 6-81)
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Overview of all Menus and Functions R&S FS315
5.5.1.2 AMPT Menu
Function key assignment
Entering the reference level ( 6-84)
Entering a level offset ( 6-85)
Selecting the level display range ( 6-86)
Selecting a unit for the level display ( 6-87)
Setting the RF input attenuation manually ( 6-89)
Setting the RF input attenuation automatically ( 6-90)
Selecting the setting High Sensitivity ( 6-92)
5.5.1.3 MKR Menu
Function key assignment
Open submenu:
Activate marker 1
Quitting the submenu
Place marker 1 on the trace maximum ( 6-95)
Place marker 1 on the next trace maximum to the left ( 6-95)
Place marker 1 on the next trace maximum to the right ( 6-95)
Measure the signal frequency: Start measurement ( 6-97)
Measure signal frequency: Set resolution ( 6-97)
De-activate marker 1 ( 6-95)
Open submenu: Activate marker 2
Quitting the submenu
Place marker 2 on the trace maximum ( 6-99)
Place marker 2 on the next trace maximum to the left ( 6-99)
Place marker 2 on the next trace maximum to the right ( 6-99)
Set marker 2 as a normal marker (NORM) ( 6-100)
Set marker 2 as a delta marker (DELTA) ( 6-100)
De-activate marker 2 ( 6-99)
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R&S FS315 Overview of all Menus and Functions
Open submenu: Accepting marker values as settings
Quitting the submenu
Set the center frequency to the marker frequency ( 6-102)
Set the marker level as a reference level ( 6-102)
Set the step size for entering the center frequency to the marker frequency ( 6-104)
Open submenu: Marker measurement functions
Quitting the submenu
Measuring noise power density ( 6-106)
Measuring signal bandwidth ( 6-108)
Bring display line up on screen ( 6-110) Open submenu:
Search criterion of functions NEXT PEAK LEFT/RIGHT
Quitting the submenu
Entering the peak excursion ( 6-112)
Open submenu: Reference points for measuring level differences
Quitting the submenu
Activating the entry of arbitrary reference points ( 6-115)
Using M1 marker values as a reference point ( 6-115)
Entering the reference-point level ( 6-115)
Entering the reference-point frequency ( 6-115)
Entering the reference-point time ( 6-115)
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Overview of all Menus and Functions R&S FS315
5.5.1.4 BW/SWEEP Menu
Function key assignment
Setting the resolution bandwidth manually ( 6-119)
Activating automatic resolution bandwidth setting ( 6-119)
Setting the video bandwidth manually ( 6-120)
Activating automatic video bandwidth setting ( 6-120) Open submenu:
Setting the RBW/VBW coupling ratio
Quitting the submenu
Setting the coupling ratio RBW/VBW manually ( 6-122)
Activating the default setting for the coupling ratio RBW/VBW ( 6-122)
Switching over the coupling RBW/SPAN to low noise ( 6-123)
Open submenu: Setting the sweep time
Quitting the submenu
Starting a continuous frequency sweep ( 6-125)
Performing an n-times sweep ( 6-125)
Setting the number of sweeps ( 6-125)
Repeating n-times sweeps ( 6-126)
Setting the sweep time manually ( 6-126)
Open submenu: Evaluating the individual pixels of a trace
Activating automatic sweep-time setting ( 6-126)
PEAK detector is active ( 6-129)
SAMPLE detector is active ( 6-129)
RMS detector is active ( 6-129)
AVERAGE detector is active ( 6-129)
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R&S FS315 Overview of all Menus and Functions
5.5.1.5 TRACE Menu
Function key assignment
Open submenu:
Selecting the active trace
Quitting the submenu
Turning on and activating Trace 1 ( 6-133)
Turning on and activating Trace 2 ( 6-133)
Trace display mode: Overwrite mode ( 6-135)
Trace display mode: Min./Max. hold ( 6-135)
Trace display mode: Averaging ( 6-135)
Freezing the trace ( 6-135)
Blanking out the trace ( 6-135) Open submenu:
Trace difference
Quitting the submenu
Turning on the trace-difference mode ( 6-139)
Repositioning Trace 1 (result) ( 6-139)
Turning off the trace-difference mode ( 6-139)
5.5.1.6 TRIG Menu
Function key assignment
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Free-running measurements ( 6-141)
Triggering by an external TTL signal ( 6-142)
Triggering by the display level ( 6-141)
Selecting the trigger edge ( 6-142)
Entering a trigger offset ( 6-142)
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Overview of all Menus and Functions R&S FS315
5.5.1.7 MEAS Menu
Function key assignment
Open submenu:
Measure the power in the time domain (ZERO SPAN)
Open submenu: Measuring the channel power
Quitting the submenu
Output the peak value within the section ( 6-145)
Output the mean value within the section ( 6-145)
Output the mean square within the time domain ( 6-145)
Insert a vertical line to limit the lower (left) part of a section ( 6-145)
Insert a vertical line to limit the upper (right) part of a section ( 6-145)
Switch off the power measurement ( 6-145)
Quitting the submenu
Measure the channel power ( 6-149)
Set the channel bandwidth ( 6-149)
Measure the occupied bandwidth ( 6-151)
Open submenu: Configuring the built-in generator
Set the power bandwidth ( 6-151)
Quitting the submenu
Enter the output level ( 6-159)
Enter the frequency or frequency offset ( 6-159)
Calibrate the test setup and activate the calibration ( 6-154)
Enter the reference position ( 6-154)
Enter the level offset ( 6-154)
Select the tracking generator operating mode ( 6-154)
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R&S FS315 Overview of all Menus and Functions
Open submenu: AM/FM demodulation
Quitting the submenu
Select the AM/FM demodulation mode ( 6-161)
Adjust the headphone volume ( 6-161)
Set the demodulation bandwidth ( 6-161)
Switching off the AM/FM demodulation ( 6-161)
Measure the third-order intercept point ( 6-162)
Open submenu: Activating the transducer function
Quitting the submenu
Load a transducer set from a USB stick ( 6-165)
Load a transducer set from the internal memory ( 6-165)
Save a transducer set to the internal memory ( 6-165)
Delete a transducer set from the internal memory ( 6-165)
Deactivate a transducer set ( 6-165)
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Overview of all Menus and Functions R&S FS315
5.5.2 SYSTEM Functions
5.5.2.1 PRESET Menu
Function key assignment
Calls an instrument default setting ( 6-170)
Selects an instrument default setting ( 6-170)
5.5.2.2 STATUS Menu
Function key assignment
Spectrum analyzer settings ( 6-171)
Settings for the channel power measurement ( 6-173)
Tracking generator settings ( 6-174)
Demodulation settings ( 6-175)
Settings for transducer sets ( 6-176)
5.5.2.3 FILE Menu
Function key assignment
Saves a user-defined setting ( 6-178)
Loads a user-defined setting ( 6-178)
Prints out a screenshot ( 6-180)
5.5.2.4 CONFIG Menu
Function key assignment
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Sets the date and time ( 6-185)
Selects an internal or external reference source ( 6-187)
Configures the instrument interfaces ( 6-188)
Sets the screen saver mode ( 6-190)
Selects an internal or external monitor ( 6-193)
Enable new functions
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R&S FS315 Overview of all Menus and Functions
5.5.2.5 SERVICE Menu
Function key assignment
Performs a selftest ( 6-194)
5.5.2.6 INFO Menu
Function key assignment
Displays module data ( 6-196)
Displays instrument statistics ( 6-196)
Displays system messages ( 6-197)
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Page 70

R&S FS315 Factory Settings R&S FS315

6 Using the R&S FS315

This chapter
Further information
All the spectrum analyzer functions and their uses are fully described in chap­ter 6. The order in which the menus are described follows that of the proce­dures for configuring and starting measurements:
R&S FS315 default settings Setting measurement parameters Selecting and configuring measurement functions
The operating concept is explained in chapter 5, which also contains an over­view of the menus and functions. The index at the end of this manual will also help you find the information you want.
6.1 R&S FS315 Factory Settings
Switching on for the first time
Frequency axis
Level axis
When you switch on the R&S FS315 ( 3-39), the settings you were using when the instrument was last switched off are restored. When you switch on for the first time, the factory default settings are activated:
Parameter Setting
Center frequency (CENTER) 1.5 GHz
Frequency span (SPAN) 3 GHz
Step size for center frequency 150 MHz
Reference level (REF LEVEL) -20 dBm
RF input
Bandwidth
Frequency sweep
Trace
Trigger
Markers
Tracking Generator
(Frequency Fixed)
(Tracking Mode)
Level offset (REF LEVEL OFFSET) 0 dB
Level range (RANGE) 80 dB
Level unit (UNIT) dBm
Input attenuation (RF ATTEN) AUTO (NORMAL)
Sweep time (SWEEP TIME) AUTO
Resolution bandwidth (RES BW) AUTO (1 MHz)
Video bandwidth (VIDEO BW) AUTO (1 MHz)
Sweep CONT SWEEP
Trace CLEAR/WRITE
Trigger FREE RUN
Marker 1 and marker 2 OFF
Mode OFF
Output level -20 dBm
Output frequency 1.5 GHz
Output level -20 dBm
Referency position 100 %
Trace Offset 0 dB
Note
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The factory default setting is stored in non-volatile memory in the R&S FS315 and can be reloaded at any time ( 6-169).
Page 71

R&S FS315 Spectrum Analyzer

6.2 Spectrum Analyzer
Introduction
User interface
Menus for configur­ing and starting measurements
The R&S FS315 measures signal spectra over the selected frequency range using the selected resolution bandwidth and sweep. The time characteristic of the amplitude at the set frequency is displayed in zero span.
When the R&S FS315 is switched on and the selftest passed, the spectrum analyzer’s user interface is activated. The following is displayed on the screen [14]:
The menus used to set the spectrum analyzer are displayed in the menu area. The order of the menus mirrors that of the procedure for configuring and starting measurements:
Selecting the frequency span ( 6-72) (setting the x axis in the diagram area)
Setting the level axis and the RF input ( 6-83) (setting the y axis in the diagram area)
Signal analysis with marker functions ( 6-93)
Setting the bandwidths and the sweep time ( 6-118)
Displaying the trace ( 6-131)
Triggering the measurement ( 6-140)
Measurement functions ( 6-143)
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Page 72
Spectrum Analyzer R&S FS315

6.2.1 Selecting the Frequency Span (FREQ/SPAN Menu)

What the settings are for
Selecting the FREQ/SPAN menu
Function key assignment
Use the FREQ/SPAN menu to specify the frequency range.
• Select the
menu using the
3
or
cursor key [6].
4
The menu name is highlighted and the appropriate functions are as­signed to the function keys [13].
1st variant: Setting the frequency range
Enter the center frequency ( 6-73)
Open submenu: Enter the SPAN ( 6-75)
2nd variant: Setting the frequency range
Enter the START frequencies ( 6-79)
Enter the STOP frequencies ( 6-79)
Open submenu:
Entering the step width of the center frequency ( 6-80)
Switching on/off signal tracking ( 6-82)
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R&S FS315 Spectrum Analyzer
6.2.1.1 Entering the Center Frequency
Use
Entering the center frequency
If you know the frequency of the signal you want to measure, you can set the x axis of the diagram area accordingly. Enter the signal frequency as the center frequency (CENTER) and specify a SPAN ( 6-75).
1. Press the
function key in the menu.
An entry field containing the current setting is displayed in the top left­hand corner.
2. Enter the new value ( 5-57).
The entry range for the center frequency is:
500 Hz ≤ Center ≤ 2.9999995 GHz
The new setting is saved and displayed in the diagram area.
CENTER
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Spectrum Analyzer R&S FS315
6.2.1.2 Frequency-Axis Display Modes
What the settings are for
Selecting the SPAN SETTINGS submenu
The frequency axis (x axis) can be displayed in a number of ways. Using the SPAN SETTINGS submenu, you can display the whole frequency range, zoom in on subranges of the frequency axis or project the diagram area onto the whole of the screen, if and when you require.
If you switchover to the time domain (ZERO SPAN), you can display the amplitude of the carrier signal as functions of time.
• Press the
function key in the menu.
The submenu opens and the appropriate functions are assigned to the function keys [13].
Function key assignment
Quitting the submenu
Enter the SPAN ( 6-75)
Displaying the whole frequency range ( 6-76)
Switching over to the ZERO SPAN ( 6-77)
Restoring the previous setting ( 6-77)
Zoom function: Reducing the span ( 6-78)
Zoom function: Increasing the span ( 6-78)
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R&S FS315 Spectrum Analyzer
6.2.1.2.1 Entering the Span
Use
Setting the span
If you know the frequency of the signal you want to measure, you can set the SPAN.
1. Press the
function key in the menu.
An entry field containing the current setting is displayed in the top left­hand corner.
2. Enter the new value ( 5-57).
The span entry range is:
1 kHz ≤ Span ≤ 3 GHz
The new setting is saved and displayed in the diagram area. The grid lines associated with the frequency axis represent 1/10 of the current span.
SPAN
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Spectrum Analyzer R&S FS315
6.2.1.2.2 Displaying the Whole Frequency Range
Use
Displaying the whole frequency range
Displaying the last span
If you do not know the frequency of the signal to be investigated, you can display the R&S FS315’s whole frequency range along the x axis of the dia­gram area. You can then systematically reduce the span to the appropriate size ( 6-75).
The whole frequency range display can also be used to swap backwards and forwards between an overview measurement (FULL SPAN) and a detailed measurement (LAST SPAN, e.
1. Press the
function key in the
g. center frequency and span set manually).
menu.
The old setting is saved and the R&S FS315’s whole frequency range is displayed in the diagram area.
2. Press the
The last span setting is displayed in the diagram area, e.
function key in the
menu.
g. 1 MHz:
Note
The last span is restored if and only if the span is > 0, in other words, the time domain (ZERO SPAN) will not be selected automatically.
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R&S FS315 Spectrum Analyzer
6.2.1.2.3 Switching over to the ZERO SPAN
Use
Specifying the signal component
Switching over to the ZERO SPAN
The amplitude of a particular signal component in the frequency spectrum can be displayed as a function of time. To activate this mode, enter the fre­quency of the signal component as the center frequency. You can then define the x axis to be the time axis.
1. Press the
function key in the menu.
An entry field containing the current setting is displayed in the top left­hand corner.
2. Enter the frequency of the signal component you want to display in the
time domain ( 6-73).
3. Press the
function key in the submenu.
The x axis becomes the time axis and the signal amplitude at the current center frequency is displayed as a function of time (current sweep time). The grid line spacing represents 1/10 of the current sweep time ( 6-
124).
Switching over to the frequency domain
SWEEP TIME
4. Press the
function key in the
The last span is displayed in the diagram area.
submenu.
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Spectrum Analyzer R&S FS315
6.2.1.2.4 ZOOM Functions
Use
Reducing the span
Increasing the span
If you want to increase or decrease the size of the screen window to analyze traces, you can zoom onto sections of the span or fill the whole screen with the current screen window.
• Press the
function key in the submenu.
The span is reduced by a factor of two. The center frequency remains the same.
• Press the
function key in the submenu.
The span is increased by a factor of two. The center frequency remains the same. The center frequency will be adapted if the new display fre­quency range exceeds the maximum permissible start or stop frequency.
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6.2.1.3 Entering the Start Frequency and the Stop Frequency
Use
Entering a start frequency
Entering a stop frequency
If you want to analyze a specific frequency range, you can enter a start fre­quency and a stop frequency. The frequency range is shown along the x axis of the diagram area.
1. Press the
An entry field containing the current setting is displayed in the top left­hand corner.
2. Enter the new value ( 5-57).
The entry range for the start frequency is:
0 ≤ Start ≤ 2.999999 GHz
3. Press the
An entry field containing the current setting is displayed in the top left­hand corner.
4. Enter the new value ( 5-57).
The entry range for the stop frequency is:
1 kHz ≤ Stop ≤ 3 GHz
function key in the . menu.
function key in the menu.
Note
The new setting is saved and displayed in the diagram area. The grid lines associated with the frequency axis represent 1/10 of the current span.
START STOP
The effect of pressing the lettering of the frequency axis in the diagram area to the display showing the
current start and stop frequencies.
or the function key is to switch the
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6.2.1.4 Entering the Step Width of the Center Frequency
What the settings are for
Selecting the CF STEP SIZE submenu
Function key assignment
Using the CF STEP SIZE submenu, you can set any step size of the rotary knob you want or have the R&S FS315 set a step size that is a function of the measurement parameters.
• Press the
The submenu opens and the appropriate functions are assigned to the function keys [13].
Quitting the submenu
function key in the menu.
Note
Setting the step size manually ( 6-81)
Setting the step size automatically ( 6-81)
Setting the step size to the center frequency ( 6-81)
Setting the step size to the marker frequency ( 6-81)
The only one setting can be activated at any one time. The function key in ques-
tion is highlighted. The AUTO function is the default setting.
The
and function keys are selection keys. In other words,
function key is available only when marker 1 is turned on.
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6.2.1.4.1 Setting the Step Size
Setting the step size manually
Setting the step size automatically
Setting the step size to the center frequency
If you want to examine the frequency spectrum at certain intervals, you can enter the value of your choice for the step size of the rotary knob.
1. Press the
function key in the
submenu.
An entry field containing the current setting is displayed in the top left­hand corner.
2. Enter the new value ( 5-57).
The entry range for the step size is:
1 Hz ≤ Step Size ≤ 2.999999 GHz
If you want to change the center frequency using steps that are small com­pared with the span, select the automatic setting mode.
• Press the
function key in the
submenu.
The step size is set to a tenth of the current span.
If you make the step size equal to the center frequency (or an integer multiple of the center frequency), it is easy to find harmonics which are multiples of the center frequency.
• Press the
function key in the submenu.
Setting the step size to the marker frequency
The step size is made equal to the current center frequency.
If you make the step size equal the marker frequency, you can search through the frequency spectrum and quickly jump back to the frequency at which you started.
• Press the
function key in the submenu.
The step size is made equal to the current marker frequency ( 6-101).
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6.2.1.5 Activating Signal Tracking
Use
Activating signal tracking
If the frequency of the signal being analyzed is continually varying, you can use this function to obtain a display that appears to be stationary. The power of signals of this kind can then be measured over long periods.
When signal tracking is selected, the center frequency of the R&S FS315 is continually set to the frequency of the signal with most power. This means that a signal whose frequency is changing slowly in comparison with the sweep time can be kept in the center of the screen. The capture range of the function is ± span/2 referring to the center frequency. The spectrum ana­lyzer’s center frequency is adjusted after each sweep.
• Press the
function key in the submenu.
The center frequency is constantly adjusted so that the signal peak is al­ways in the middle of the screen. The latest center frequency to be set is displayed. The peak will continue to be tracked provided it remains within the span referring to the center frequency.
De-activating signal tracking
• Press the
function key in the submenu.
The center frequency ceases to be tracked and remains at its last value.
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6.2.2 Setting the Level Axis and the RF Input (AMPT Menu)

What the settings are for
Selecting the AMPT menu
Function key assignment
From the AMPT menu, you can define the y axis of the measurement dia­gram as the level axis. You can also specify the attenuation of the RF input.
• Select the
The menu name is highlighted and the appropriate functions are as­signed to the function keys [13].
Entering the reference level ( 6-84)
menu with the
3
or
cursor key [6].
4
Note
Entering a level offset ( 6-85)
Selecting the level display range ( 6-86)
Selecting the level display unit ( 6-87)
Setting the RF input attenuation manually ( 6-89)
Setting the RF input attenuation automatically ( 6-90)
Selecting the setting High Sensitivity ( 6-92)
The only one setting can be activated at any one time. The function key in ques-
tion is highlighted. The RF ATTEN AUTO function is the default setting.
The the unit of the antenna factors is dB.
and function keys are selection keys. In other words,
function key is only available for activated transducer factors if
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6.2.2.1 Entering the Reference Level
Use
Note
Entering the reference level
The upper diagram limit is specified with the reference level.
REF LEVEL
The currently activated unit is used as the unit for reference level entries ( 6-87). The default setting is “dBm”.
1. Press the
function key in the menu.
An entry field containing the current setting is displayed in the top left­hand corner. The default setting is -20 dBm.
2. Enter a new value in 0.1 dB steps ( 5-57).
The entry range for the reference level is:
-110 [dBm] ≤ Reference
≤ +36 [dBm]
The new setting is saved and displayed in the diagram area. The refer­ence level defines the upper limit of the diagram.
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6.2.2.2 Entering a Level Offset
Use
Entering a level offset
If you have connected external attenuators or amplifiers between the DUT and the RF input, you can enter a level offset to adjust the level display. The level offset is added to the reference level.
REF LEVEL + REF LEVEL OFFSET
1. Press the
function key in the menu.
An entry field containing the current setting is displayed in the top left­hand corner. The default setting is 0 dB.
2. Enter a new value in 0.1 dB steps ( 5-57).
The entry range for the level offset is:
-100 [dB] ≤ Ref Lvl Offset ≤ +50 [dB]
The new setting is saved and displayed in the diagram area. The text “Offs” is also displayed in the top left of the diagram.
The level offset is always entered in dB no matter what unit is used for the reference level. If the units mV or mW are used, the offset is auto­matically converted so that the reference level is displayed correctly:
REF LEVEL e.
g. = -20 dBm + 40 dB = 20 dBm
= REF LEVEL + REF LEVEL OFFSET
Display
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6.2.2.3 Selecting the Level Display Range
Use
Entering the level display range
Use the level display range to define the “visible” level range and set the measurement diagram scale.
Levels can be displayed using either logarithmic or linear scales. The lettering of the grid lines is automatically adapted.
8 dB
1 dB/div.
16 dB
2 dB/div.
40 dB
5 dB/div.
80 dB
10 dB/div.
linear 0..100%
12.5 %/div., linear scale, 100 % corresponds to the reference level, 0 % to 0 V or 0 W
1. Press the
A selection field containing the available settings is displayed. The de­fault setting is 80 dB.
function key in the menu.
Note
2. Select a level display range with rotary knob
3. Press the ENTER key [5] to close the selection field.
The new setting is saved and displayed in inverse video in the diagram area. The level display range is referred to the reference level. This de­termines how the grid lines are lettered, for example, for REF LEVEL =
-20 dBm and RANGE = 80 dB, the first grid line is at -20 dBm and the second at -30 dBm, and so on.
RANGE
The level display range uses the currently activated unit ( 6-87).
[11].
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6.2.2.4 Selecting the Level Display Unit
Note
Use To make it easier to analyze results, you can display levels in dBm, dBmV,
Selecting the unit for the level display
How RANGE and UNIT are related
The function key is only available for activated transducer factors if the unit of the antenna factors is dB.
dBµV, dBµA, mV and mW.
1. Press the
A selection field containing the available settings is displayed. The de­fault setting is dBm.
2. Select a unit for the level display with rotary knob
3. Press the ENTER key [5] to close the selection field.
The new setting is saved and displayed in the diagram area.
Log display/RANGE in dBx (The letter x is a wildcard character for the let­ters m, mV or µV.)
If a dB display has been selected for RANGE ( 6-86) and a dBx display for UNIT, the vertical-scale unit is dB. The values indicated by the level markers and the relevant level entries are in dBx.
function key in the menu.
[11].
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Log display/RANGE in xV, xA or xW (The letter x is a wildcard character for
the letters m or µ.)
If a mV or mW has been selected for UNIT, only the reference level is dis­played in the selected unit. There is no grid lettering. The values shown by the level markers and the relevant level entries are in the selected unit.
Linear display/RANGE in xV, xA or xW (The letter x is a wildcard character
for the letters m or µ.)
If the linear scale is selected for RANGE, the scale lettering indicates percent, e.
g. 0 %, 25 %, 50 %, 75 % and 100 %. The values indicated by the level
markers and the relevant level entries are in the selected unit.
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6.2.2.5 Setting the RF Input Attenuation Manually
Use
Setting the input attenuation manually
Note
In the default setting, the input attenuation is coupled to the reference level. In most cases, this is the setting that will be used because it prevents the input stages from being overdriven and so, consequently, any incorrect measure­ments.
In exceptional cases, it may be necessary to adjust the input attenuation manually with input attenuations from 0 to 70 dB.
1. Press the
An entry field containing the current setting is displayed in the top left­hand corner. The default setting is 16 dB.
2. Enter a new value in 2 dB steps ( 5-57).
The entry range for the input attenuation is:
0 [dB] ≤ RF Atten Manual ≤ 70 [dB]
The new setting is saved and the RF input is re-configured.
If you enter an intermediate value (e.g. 3 dB) which the R&S FS315 cannot set, the next largest value will be set instead (4 dB).
function key in the menu.
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6.2.2.6 Setting the RF Input Attenuation Automatically
Use
The input attenuation should be set automatically to prevent the R&S FS315’s input mixer from being overloaded. There are three RF input modes you can choose from (coupling between reference level and input attenuation) to op­timize measurements:
NORMAL
Normal setting for measurements
LOW NOISE
Settings for measurements with low displayed average noise level of the analyzer
LOW DISTORTION
Setting for measurements with low inherent distortion of the analyzer
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Activating the auto­matic input attenuation setting mode
1. Press the
function key in the menu.
A selection field containing the available settings is displayed. The de­fault setting is NORMAL.
2. Using the rotary knob
[11] select a criterion for autosetting the input
attenuation.
3. Press the ENTER key [5] to close the selection field.
The new setting is saved and the RF input is configured automatically according to the setting.
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6.2.2.7 Selecting the Setting High Sensitivity
Use
Selecting the Setting High Sensitivity
By setting SET HIGH SENS, you can change several settings in the device in order to increase the input and measurement sensitivity of the analyzer in comparison to the normal setting. This function is helpful when you want to measure weak antenna signals with the analyzer.
SET HIGH SENS influences the following settings in the R&S FS315:
Sets the reference level (REF LEVEL, 6-84) to -10 dBm. Sets the input attenuation (RF ATTEN, 6-89) to 0 dB. Activates the coupling (RBW/SPAN LOW NOISE, 6-123).
If RES BW was set to MANUAL, the analyzer switches to AUTO.
• Press the
The setting RBW/SPAN LOW NOISE is indicated by the letters LN next to the RBW display.
function key in the menu.
Note
You can switch the input attenuation of the analyzer to 0 dB by means of SET HIGH SENS. To ensure that the R&S FS315 is not overdriven, the level at the analyzer input must not exceed the reference level that has been set minus 15 dB. ( 6-84).
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6.2.3 Signal Analysis using Marker Functions (MKR Menu)

What the settings are for
Selecting the MKR menu
Function key assignment
Using the MKR menu, you can position markers on any point on the trace to read off any levels or level differences of interest. The measured values indi­cated by the markers (marker values) are displayed in the parameter field ( 5-51). A scrollable display line can also be shown on-screen.
• Select the
The menu name is highlighted and the appropriate functions are as­signed to the function keys [13].
Open submenu: Activate marker 1 ( 6-94)
menu with the
3
or
cursor key [6].
4
Note
Open submenu: Activate marker 2 ( 6-98)
Open submenu: Accepting marker values as settings ( 6-101)
Open submenu: Marker measurement functions ( 6-105)
Show display line ( 6-110)
Open submenu: Search criterion of functions NEXT PEAK LEFT/RIGHT ( 6-111)
Open submenu: Reference points for level-difference measurements ( 6-114)
The
The
The marker 1 is turned on.
and function keys are selection keys.
function key is available only when marker 1 is turned on.
, and function keys are available only when
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6.2.3.1 Activating Marker 1
What the settings are for
Selecting the MARKER 1 submenu
From the MARKER 1 submenu, you can activate a marker and position it on the trace. All the current level and frequency values (marker values) are dis­played.
The frequency indicated by the marker can be measured more accurately with the FREQ COUNT function.
• Press the
If marker 1 is not yet activated, the marker is set to the strongest signal (peak). An entry field containing the current marker frequency appears in the top left-hand corner. The submenu is opened and the respective functions are assigned to the function keys [13].
If the marker is already activated, the entry field opens without the posi­tion of the marker being changed.
function key in the menu.
Function key assignment
Note
Quitting the submenu
Activate marker 1 and place it on the trace maximum ( 6-95)
Place marker 1 on the next peak to the left ( 6-95)
Place marker 1 on the next peak to the right ( 6-95)
Measure the signal frequency: Start the measurement ( 6-97)
Measure the signal frequency: Set the resolution ( 6-97)
De-activate marker 1 ( 6-95)
The been activated.
and function keys are available only when marker 1 has
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6.2.3.1.1 Reading off Measured Values with Marker 1
Use
Activating marker 1 and placing it on the trace maximum
Placing marker 1 on the next trace maximum
You can position marker 1 on the trace to read off specific levels and fre­quencies (marker values).
1. Press the
function key in the submenu.
Marker 1 is activated and placed on the current trace maximum. M1 marker values are displayed in the parameter field.
2. Press the
or function key in the submenu.
Marker 1 is positioned on the next trace maximum to the right (or left). The new M1 marker values are displayed in the parameter field.
Note
The search criterion of functions NEXT PEAK LEFT/RIGHT can be changed
by using the function key
( 6-112).
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Moving marker 1 to any position
De-activating marker 1
3. Enter a new value for the marker frequency using the numerical keys
[12], rotary knob [11] or cursor keys [7]. The permissible entry range is:
– Span/2 ≤ f
f
Center
where f
f
- Marker frequency
Marker
- current center frequency ( 6-73)
Center
Marker
≤ f
Center
+ Span/2
Span - current Span ( 6-75)
The current M1 marker values are displayed in the parameter field.
• Press the
function key in the submenu.
Marker 1 (and marker 2, if activated) disappears from the diagram area and the M1 (M2) marker values are blanked out.
Note
The marker can only be moved if the entry window is open. If you closed the entry window with ESC/CANCEL key [4], you must briefly leave the Marker 1
menu before you can open the entry window again. Then press the
function key in the
menu to open the entry window again.
If the center frequency setting is such that the set marker is outside the fre­quency span, the last value is frozen as the reference.
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6.2.3.1.2 Frequency Measurements using the Frequency Counter
Use
Setting the resolution
The normal marker indicates the frequency represented by the pixel on which it is placed. The measurement uncertainty is relatively large because the number of pixels is limited to 250.
When a measurement is made with the frequency counter, the sweep is stopped at the frequency indicated by marker 1, the frequency is counted using the required resolution (10 Hz, 1 Hz) and then the sweep is restarted. There must be a periodic signal at the marker position if the measurement is to be successful.
1. Position marker 1 on the trace ( 6-94).
The current M1 marker values are displayed in the parameter field.
2. Press the
function key in the submenu.
A selection field containing the available settings is displayed. The de­fault setting is 1 Hz.
3. Select a resolution for the internal frequency counter with rotary
knob
[11], e.
g. 10 Hz.
4. Press the ENTER key [5] to close the selection field.
The new setting is saved.
Measuring the signal frequency
De-activating the measurement
Note
5. Press the
function key in the submenu.
The frequency is counted with the internal counter. The result (C1) is displayed in the parameter field instead of the marker frequency (M1).
• Press the
function key in the submenu.
The internal counter is turned off. The current M1 marker values are again displayed in the parameter field.
The absolute accuracy of the frequency measurement depends on the frequency stability of the reference-oscillator. When the internal reference is used, the accuracy is given according to the values specified in the data sheet. ( 0-12).
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6.2.3.2 Activating Marker 2
What the settings are for
Selecting the MARKER 2 submenu
From the MARKER 2 submenu, you can activate a second marker and posi­tion it on the trace. Marker 2 can be used either as a normal marker (NORM) or as a delta marker (DELTA). The delta marker function expands the R&S FS315’s analysis capability and can be used as a basis for a variety of meas­urement techniques ( 6-143).
Marker 2 can only be activated if marker 1 has been activated.
• Press the
If marker 2 is not yet activated, the marker is set to the strongest signal (peak). An entry field containing the current marker frequency appears in the top left-hand corner. The submenu is opened and the respective functions are assigned to the function keys [13].
If the marker is already activated, the entry field opens without the posi­tion of the marker being changed.
function key in the menu.
Function key assignment
Note
Quitting the submenu
Activate marker 2 and position it on the trace maximum ( 6-99)
Place marker 2 on the next peak to the left ( 6-99)
Place marker 2 on the next peak to the right ( 6-99)
Set marker 2 as a normal marker (NORM) ( 6-100)
Set marker 2 as a delta marker (DELTA) ( 6-100)
De-activate marker 2 ( 6-99)
The only one setting can be activated at any one time. The function key in ques-
tion is highlighted. The MARKER NORM function is the default setting.
and function keys are selection keys. In other words,
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6.2.3.2.1 Reading off Measured Values with Marker 2
Use
Activating marker 2 as a normal marker (NORM)
De-activating marker 2
To read off specific levels, you can activate marker 2 as a normal marker (in addition to marker 1) and position it on the trace. The current level and fre­quency can be displayed in this way (M2 marker values).
1. Press the
function key in the submenu.
Marker 2 is defined as a normal marker. The M2 absolute marker values are displayed in the parameter field.
2. Position marker 2 on the trace ( 6-95).
The current M2 marker values are displayed in the parameter field.
• Press the
function key in the submenu.
Marker 2 disappears from the diagram area and the M2 marker values are blanked out.
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6.2.3.2.2 Reading off Level Differences
Use
Defining marker 2 as a delta marker (DELTA)
De-activating marker 2
You can define marker 2 as a delta marker to read off level differences from the trace. The level difference between marker 2 and a reference point is displayed. Marker 1 ( 6-94) or reference values that have been set manually ( 6-114) can be used as reference points.
1. Press the
function key in the submenu.
Marker 2 is defined as a delta marker. The relative delta marker values (M), which represent the level difference between marker 2 and a refer­ence point, e.
g. marker 1, are displayed in the parameter field.
2. Press the
function key in the submenu.
Marker 2 disappears from the diagram area and the M2 marker values are blanked out.
E-1147.1000.04 6-100 Operating manual, 08/2005
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