Rohde & Schwarz CTS50 User manual

1094.3405.12-11-1
Test and Measurement
Division
Operating Manual
Digital Radio Tester
for
GSM (GSM 900) -
PCN (GSM 1800 / DCS 1800) -
PCS (GSM 1900 / DCS 1900) -
Mobiles
R&SCTS50
R&SCTS55
1094.0006.50
1094.0006.55
Printed in Germany

1094.3405.12-11-2
Dear Customer,
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.

1094.3392.12-01- A E-3
Note
Digital Radio Tester CTS50 is a basic model, and options
CTS-K9, CTS-K18 and CTS-K19 enable its use with operating modes
GSM, PCN and PCS, respectively.

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Contents
Data Sheet
1Introduction ..................................................................................................................................1.1
1.1 Application for the Autotest.....................................................................................................1.1
1.1.1 Overview........................................................................................................................1.1
1.1.2 Test Functions in the Autotest .......................................................................................1.1
1.2 Quicktest....................................................................................................................................1.2
1.3 Application for the Manual Test ..............................................................................................1.2
1.4 Application for the Module Test (Option CTS-B7).................................................................1.2
1.5 Remote Control (Option CTS-K6)............................................................................................1.2
2Preparation for Use...................................................................................................................2.1
2.1 Explanation of Front and Rear View.......................................................................................2.2
2.2 Commissioning.........................................................................................................................2.3
2.2.1 Setting up the Instrument...............................................................................................2.3
2.2.2 Connecting the Instrument to the AC Supply.................................................................2.4
2.2.3 Ensuring Electromagnetic Compliance (EMC)...............................................................2.5
2.2.4 Switching on the Instrument...........................................................................................2.5
2.2.5 Options List....................................................................................................................2.5
2.2.6 OCXOReference Oscillator(Option CTS-B1)...............................................................2.6
2.2.7 Connecting an External Keyboard.................................................................................2.6
2.2.8 Connecting an External Monitor.....................................................................................2.6
3Getting Started With Autotest...............................................................................................3.1
3.1 Overview....................................................................................................................................3.1
3.2 Test of Mobile............................................................................................................................3.4

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4Autotest Sequence in Detail..................................................................................................4.1
4.1 General.......................................................................................................................................4.1
4.2 1st Step - Start...........................................................................................................................4.3
4.3 2nd Step - Location Update.....................................................................................................4.6
4.4 3rd Step - Call to MS.................................................................................................................4.7
4.5 4th Step - Echo Test .................................................................................................................4.7
4.6 5th Step - MS Release ..............................................................................................................4.7
4.7 6th Step - Call From MS ...........................................................................................................4.8
4.8 7th Step - MS Average Power..................................................................................................4.9
4.9 8th Step - Sensitivity (RxLev and RxQual)...........................................................................4.11
4.109th Step - Phase/Frequency Error and Power Ramp...........................................................4.11
4.1110th Step - Bit Error Rate.......................................................................................................4.12
4.12Steps 11 - 14 - Measurements on the second channel.......................................................4.12
4.1315th Step – Handover or Network Release...........................................................................4.12
4.14Test Sequence in Single Step Mode.....................................................................................4.13
4.15Viewing the results of a two band autotest sequence........................................................4.13
5Getting Started With Quicktest.............................................................................................5.1
5.1 Overview....................................................................................................................................5.1
5.2 Test of Mobile............................................................................................................................5.2
6Getting Started With Manual Test.......................................................................................6.1
6.1 Overview....................................................................................................................................6.1
6.2 Test of Mobile............................................................................................................................6.2
6.3 Transmitter Measurements....................................................................................................6.10
6.4 Receiver Measurements.........................................................................................................6.12
6.4.1 BER Sensitivity measurement......................................................................................6.14

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6.5 GPRS/BLER Measurements...................................................................................................6.15
6.5.1 GPRS Attach................................................................................................................6.15
6.5.2 GPRS Block Error Rate ...............................................................................................6.16
6.5.3 GPRS Detach...............................................................................................................6.16
7Module Test..................................................................................................................................7.1
7.1 Overview....................................................................................................................................7.1
7.2 Menu hierarchy .........................................................................................................................7.2
7.3 Starting Module Test................................................................................................................7.3
7.4 Burst Analysis...........................................................................................................................7.4
7.4.1 Configuration..................................................................................................................7.4
7.4.2 Running the Burst Analysis measurement.....................................................................7.5
7.4.3 The Measurement Results.............................................................................................7.6
7.4.4 Other Measurements.....................................................................................................7.7
7.4.4.1 Power Ramp...................................................................................................7.7
7.4.4.2 Phase Frequency............................................................................................7.8
7.5 IQ Spectrum...............................................................................................................................7.9
7.5.1 Configuration..................................................................................................................7.9
7.5.2 Running the IQ Spectrum measurement .....................................................................7.10
7.5.3 The Measurement Results...........................................................................................7.10
7.5.4 The Sensitive Power Measurement.............................................................................7.11
7.6 RF Signal Generator...............................................................................................................7.13
7.7 Technical Information ............................................................................................................7.14
7.7.1 Frequency ranges........................................................................................................7.14
8RF connection..............................................................................................................................8.1
8.1 RF Connection of the Mobile Phone Using a Cable..............................................................8.1
8.2 RF Connection of the Mobile Phone Using an Antenna Coupler........................................8.1

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9Detailed Description of the Menus......................................................................................9.1
9.1 Menu Structure Overview ........................................................................................................9.1
9.2 Menu Structure Graph..............................................................................................................9.2
9.3 Some Basic Elements of the Man Machine Interface............................................................9.3
9.3.1 Multi Field Editing...........................................................................................................9.3
9.3.2 Single Field Editing ........................................................................................................9.4
9.3.3 Single Field Editing with Direct Saving...........................................................................9.4
9.4 Home Menu ...............................................................................................................................9.5
9.5 Auto Test Menus.......................................................................................................................9.6
9.5.1 Autotest Start Menu .......................................................................................................9.6
9.5.2 Autotest Config Menu.....................................................................................................9.7
9.5.3 Autotest Running Menu (Pass/Fail) ...............................................................................9.8
9.5.4 Autotest Running Menu (Values)...................................................................................9.9
9.5.5 Autotest Tolerances Menu...........................................................................................9.10
9.5.6 Autotest Result Screen ................................................................................................9.11
9.6 Quicktest Menus.....................................................................................................................9.12
9.6.1 Quicktest Main Menu...................................................................................................9.12
9.6.2 Config-Quicktest Menu ................................................................................................9.13
9.6.3 Quicktest - Test Menu..................................................................................................9.14
9.6.4 Quicktest - Result Menu...............................................................................................9.15
9.7 Manual Test Menus.................................................................................................................9.16
9.7.1 MS Test/Wait Sync Menu ............................................................................................9.16
9.7.2 Manual Test Menu .......................................................................................................9.17
9.7.3 Select MS Type Menu..................................................................................................9.18
9.7.4 MS Test/Updated Menu...............................................................................................9.19
9.7.4.1 Handover Details Menu................................................................................9.20
9.7.5 Call Established Menu .................................................................................................9.21
9.7.6 Power Ramp Menu ......................................................................................................9.23
9.7.7 Phase Frequency Menu...............................................................................................9.24
9.7.8 Bit Error Rate Menu .....................................................................................................9.25
9.7.9 BER Sensitivity measurement......................................................................................9.26

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9.8 Measurement Configuration Menus .....................................................................................9.27
9.8.1 Config Power Ramp.....................................................................................................9.27
9.8.2 Config Phase/Freq Menu.............................................................................................9.28
9.8.3 Config BER Menu ........................................................................................................9.29
9.8.4 Config BER Sensitivity.................................................................................................9.30
9.9 General Configuration Menus ...............................................................................................9.31
9.9.1 Config - Select..............................................................................................................9.31
9.9.2 Config BS Signal..........................................................................................................9.32
9.9.3 Config Channels...........................................................................................................9.33
9.9.4 Config Quicktest (Channel)..........................................................................................9.34
9.9.5 Config MS Type and MS Type Edit..............................................................................9.35
9.9.6 Config Network ............................................................................................................9.37
9.9.7 Config Date/Time.........................................................................................................9.38
9.9.8 Config Language..........................................................................................................9.39
9.9.9 Config Password..........................................................................................................9.40
9.9.10 Comment Menu ...........................................................................................................9.41
9.9.11 Config Keyboard Menu ................................................................................................9.42
9.9.12 Config Com Port ..........................................................................................................9.43
9.9.13 Config Dual Band Handover Menu ..............................................................................9.44
9.9.13.1 Handover Network........................................................................................9.45
9.9.13.2 Handover Check...........................................................................................9.45
9.9.13.3 Handover Mode............................................................................................9.46
10Enhanced Measurement and Test Report Printout..................................................10.1

Contents CTS55
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11Remote Control.........................................................................................................................11.1
11.1Introduction.............................................................................................................................11.1
11.2Brief Instructions....................................................................................................................11.1
11.3Switchover to Remote Control..............................................................................................11.2
11.4Device Messages (Commands and Device Responses).....................................................11.2
11.5Structure and Syntax of the Device Messages....................................................................11.3
11.5.1 SCPI Introduction.........................................................................................................11.3
11.5.2 Structure of a Command..............................................................................................11.3
11.5.3 Structure of a Command Line......................................................................................11.5
11.5.4 Responses to Queries .................................................................................................11.7
11.5.5 Parameters ..................................................................................................................11.8
11.5.6 Overview of Syntax Elements....................................................................................11.10
11.6Description of Commands...................................................................................................11.11
11.6.1 Notation......................................................................................................................11.11
11.6.2 Common Commands.................................................................................................11.13
11.7Instrument Model and Command Processing...................................................................11.16
11.8Status Reporting System.....................................................................................................11.17
11.8.1 Structure of an SCPI Status Register ........................................................................11.17
11.8.2 Overview of the Status Registers...............................................................................11.19
11.8.3 Description of the Status Registers............................................................................11.20
11.8.3.1 Status Byte (STB) and Service Request Enable Register (SRE)...............11.20
11.8.3.2 Event-Status-Reg. (ESR) and Event-Status-Enable-Reg. (ESE)...............11.21
11.8.4 Error-Queue Query....................................................................................................11.22
11.8.5 Resetting Values of the Status Reporting System.....................................................11.22
11.9Examples...............................................................................................................................11.23