NARDA SRM-3000 User manual

SRM-3000
Selective Radiation Meter
Operating Manual
3001/98.21
Advanced Test Equipment Rentals
www.atecorp.com 800-404-ATEC (2832)
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SRM-3000
Selective Radiation Meter
300X/XX, Series C ...
Operating Manual

Please direct all enquiries to your local
sales company.
Narda Safety Test Solutions GmbH
Sandwiesenstr. 7
72793 Pfullingen, Germany
© 2007
Order no.: 3001/98.21
Edition: 11/07.06, C ...
Previous edition: 10/06.11, C ...
Subject to change without notice.
Our normal guarantee and delivery
terms apply
Printed in Germany

Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 About this instrument. . . . . . . . . . . . . . . . . . . . . . 1-3
1.3 About this Manual . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1 Before connecting up . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.3 AC Adapter / Charger . . . . . . . . . . . . . . . . . . . . . 2-3
2.4 Faults and excessive stresses . . . . . . . . . . . . . . 2-4
2.5 Disposal in accordance with local regulations. . . 2-4
3 Preparation for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1.1 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1.2 Checking the instrument for transport damage . . 3-1
3.1.3 Recovery after transport and storage . . . . . . . . . 3-1
3.2 Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2.1 Battery pack operation . . . . . . . . . . . . . . . . . . . . 3-2
3.2.2 Handling the battery pack . . . . . . . . . . . . . . . . . . 3-3
3.2.3 Operation from AC Adapter / Charger. . . . . . . . . 3-3
3.3 Switching the instrument on and off . . . . . . . . . . 3-4
3.3.1 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.3.2 Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
4 Instrument concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 SRM as a field strength meter. . . . . . . . . . . . . . . 4-1
4.1.1 Overall concept . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.1.2 Basic instrument . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.1.3 Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.1.4 Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.2 SRM as a spectrum analyzer . . . . . . . . . . . . . . . . 4-4
5 Measurement setup variants . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1 Variant overview . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1.1 Measurement setup with a three axis antenna. . . 5-2
5.1.2 Measurement setup with a single axis antenna . .5-3
5.2 Assembling the measurement setup . . . . . . . . . . 5-5
5.3 Fitting the antenna directly
on the basic instrument . . . . . . . . . . . . . . . . . . . . 5-6
5.4 Using a cable to connect the antenna
to the basic instrument . . . . . . . . . . . . . . . . . . . . . 5-8
5.5 Fitting the Narda antenna to a tripod . . . . . . . . . 5-11
5.5.1 Antenna holder for three axis antennas . . . . . . . 5-11
5.5.2 Antenna holder for single axis and
three axis antennas . . . . . . . . . . . . . . . . . . . . . . 5-12
5.6 Registering a non-Narda antenna . . . . . . . . . . . 5-14
5.7 Registering a non-Narda cable. . . . . . . . . . . . . . 5-15
6 User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.1 Control elements . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.1.1 On / Off switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.1.2 Menu selection keys. . . . . . . . . . . . . . . . . . . . . . . 6-2
6.1.3 Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.1.4 Function keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.1.5 Rotary control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6.1.6 Keys for optimizing the display. . . . . . . . . . . . . . . 6-8
6.2 Operating status display. . . . . . . . . . . . . . . . . . . . 6-9
6.3 LCD panel elements. . . . . . . . . . . . . . . . . . . . . . 6-10
6.4 External connectors . . . . . . . . . . . . . . . . . . . . . . 6-12

7 “Safety Evaluation” mode . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1 “Safety Evaluation” mode functions. . . . . . . . . . . 7-1
7.2 Selecting the operating mode . . . . . . . . . . . . . . . 7-1
7.3 Selecting the service to be measured . . . . . . . . . 7-4
7.3.1 Restricting the list of services to be measured
using the first service. . . . . . . . . . . . . . . . . . . . . . 7-4
7.3.2 Restricting the list of services to be measured
using the last service. . . . . . . . . . . . . . . . . . . . . . 7-5
7.3.3 Restoring the original list of services
to be measured . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7.4 Setting the measurement range . . . . . . . . . . . . . 7-6
7.4.1 Setting the measurement range manually. . . . . . 7-6
7.4.2 Search for the best measurement range. . . . . . . 7-7
7.4.3 Using noise suppression (Noise Threshold) . . . . 7-8
7.5 Selecting the result type . . . . . . . . . . . . . . . . . . 7-10
7.6 Selecting the averaging parameters . . . . . . . . . 7-11
7.7 Selecting the resolution bandwidth (RBW) . . . . 7-13
7.8 Selecting display options. . . . . . . . . . . . . . . . . . 7-15
7.8.1 Selecting the units for the results . . . . . . . . . . . 7-15
7.8.2 Selecting display options. . . . . . . . . . . . . . . . . . 7-16
8 “Spectrum Analysis” mode . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1 Operating mode functions . . . . . . . . . . . . . . . . . . 8-1
8.2 Selecting the operating mode . . . . . . . . . . . . . . . 8-1
8.3 Selecting the frequency range. . . . . . . . . . . . . . . 8-4
8.3.1 Selecting the frequency range entry method. . . . 8-4
8.3.2 Defining the frequency range
by upper and lower frequencies . . . . . . . . . . . . . 8-4
8.3.3 Defining the frequency range
by center frequency and frequency span . . . . . . 8-6
8.4 Setting the resolution bandwidth (RBW) . . . . . . . 8-7

8.5 Setting the measurement range . . . . . . . . . . . . . .8-9
8.5.1 Setting the measurement range manually . . . . . . 8-9
8.5.2 Search for the best measurement range . . . . . . 8-10
8.6 Selecting the result type . . . . . . . . . . . . . . . . . . . 8-11
8.7 Selecting the averaging parameters. . . . . . . . . . 8-12
8.8 Selecting the display . . . . . . . . . . . . . . . . . . . . . 8-14
8.8.1 Selecting the units . . . . . . . . . . . . . . . . . . . . . . .8-14
8.8.2 Selecting the display mode and scaling . . . . . . . 8-16
8.8.3 Rapidly changing the frequency span
(Zoom function) . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
8.9 Evaluating results . . . . . . . . . . . . . . . . . . . . . . . . 8-28
8.9.1 Marker functions. . . . . . . . . . . . . . . . . . . . . . . . . 8-28
8.9.2 Peak table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
8.9.3 Integration over a defined frequency band. . . . . 8-37
9 “UMTS P-CPICH Demodulation” mode (option) . . . . . . 9-1
9.1 Operating mode functions . . . . . . . . . . . . . . . . . . 9-1
9.2 Selecting the operating mode. . . . . . . . . . . . . . . .9-2
9.3 Selecting the display . . . . . . . . . . . . . . . . . . . . . .9-5
9.3.1 Table Normal display mode . . . . . . . . . . . . . . . . . 9-6
9.3.2 Table Ratio display mode . . . . . . . . . . . . . . . . . . . 9-9
9.3.3 Bar Graph display mode. . . . . . . . . . . . . . . . . . . 9-10
9.3.4 Mixed display mode (numerical display
with graphical display versus time). . . . . . . . . . . 9-13
9.3.5 Value display mode (numerical) . . . . . . . . . . . . . 9-17
9.3.6 Graph (versus time) display mode . . . . . . . . . . . 9-18
9.4 Selecting an UMTS frequency or channel . . . . . 9-20
9.4.1 Selecting the center frequency. . . . . . . . . . . . . . 9-21
9.4.2 Selecting the channel number . . . . . . . . . . . . . . 9-22
9.5 Selecting the measurement range . . . . . . . . . . . 9-23
9.5.1 Setting the measurement range manually . . . . . 9-23
9.5.2 Search for the best measurement range . . . . . . 9-24

9.5.3 Using noise suppression (Noise Threshold) . . . 9-25
9.6 Selecting the result type . . . . . . . . . . . . . . . . . . 9-27
9.7 Selecting the averaging parameters . . . . . . . . . 9-28
9.8 Selecting the UMTS demodulation algorithm
(FAST/SENSITIVE) . . . . . . . . . . . . . . . . . . . . . . 9-30
9.9 Setting the extrapolation factor (Extr. Fact.) . . . 9-31
9.10 Evaluating and interpreting
measurement results. . . . . . . . . . . . . . . . . . . . . 9-33
9.10.1 Individual results . . . . . . . . . . . . . . . . . . . . . . . . 9-33
9.10.2 Overall result (Total) . . . . . . . . . . . . . . . . . . . . . 9-34
9.10.3 Partial results for specific radio cells
(Scrambling Codes). . . . . . . . . . . . . . . . . . . . . . 9-34
9.10.4 Analog measurement result (Analog) . . . . . . . . 9-34
10 “Time Analysis” mode . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
10.1 Operating mode function . . . . . . . . . . . . . . . . . . 10-1
10.2 Selecting the operating mode . . . . . . . . . . . . . . 10-1
10.3 Selecting display options. . . . . . . . . . . . . . . . . . 10-4
10.3.1 Value display . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
10.3.2 Graph display . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
10.3.3 Mixed display. . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9
10.4 Selecting the Center Frequency (Fcent) . . . . . 10-10
10.5 Selecting the Detector Type
(RMS value, peak value) . . . . . . . . . . . . . . . . . 10-11
10.6 Selecting the Resolution Bandwidth (RBW) . . 10-12
10.7 Setting the measurement range . . . . . . . . . . . 10-13
10.7.1 Setting the measurement range manually. . . . 10-13
10.7.2 Search for the best measurement range. . . . . 10-14
10.7.3 Using noise suppression (Noise Threshold) . . 10-15
10.8 Selecting the Result Type . . . . . . . . . . . . . . . . 10-17
10.9 Selecting the Averaging Time . . . . . . . . . . . . . 10-18
10.10 Evaluating the results . . . . . . . . . . . . . . . . . . . 10-19

11 Isotropic measurements . . . . . . . . . . . . . . . . . . . . . . . . 11-1
11.1 Measurements with a three axis antenna. . . . . . 11-2
11.1.1 Isotropic measurement
with a three axis antenna . . . . . . . . . . . . . . . . . . 11-2
11.1.2 Measuring a single axis
with a three axis antenna . . . . . . . . . . . . . . . . . . 11-4
11.2 Measurement using a single axis antenna . . . . . 11-5
11.2.1 Standard measurement
using a single axis antenna . . . . . . . . . . . . . . . . 11-5
11.2.2 Isotropic measurement
with a single axis antenna . . . . . . . . . . . . . . . . . 11-6
12 Spatial Averaging (option) . . . . . . . . . . . . . . . . . . . . . . . 12-1
12.1 Spatial Averaging in
“Safety Evaluation” mode . . . . . . . . . . . . . . . . . . 12-4
12.1.1 Continuous Averaging . . . . . . . . . . . . . . . . . . . . 12-5
12.1.2 Discrete Averaging . . . . . . . . . . . . . . . . . . . . . . .12-8
12.1.2.1 Discrete Averaging with a three axis antenna . . 12-8
12.1.2.2 Discrete Averaging with a single axis antenna . 12-10
12.2 Spatial Averaging in
“Spectrum Analysis” mode . . . . . . . . . . . . . . . . 12-14
12.3 Spatial Averaging in
“Time Analysis” mode. . . . . . . . . . . . . . . . . . . . 12-16
13 Result memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
13.1 Saving data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
13.1.1 Saving a single measurement . . . . . . . . . . . . . . 13-2
13.1.2 Automatic saving . . . . . . . . . . . . . . . . . . . . . . . . 13-4
13.1.3 Time Controlled Storing (option). . . . . . . . . . . . . 13-9
13.2 Managing data sets . . . . . . . . . . . . . . . . . . . . . 13-13
13.3 Entering and editing comments . . . . . . . . . . . . 13-17
13.4 Reading out stored data sets . . . . . . . . . . . . . . 13-19