10 Scope Mode
Narda
SRM-3006
127
10.3.2
Example 1: GSM
GSM is characterized by the following properties:
• BCCH and several traffic channels
• Channel bandwidth 200 kHz
• Cycle time: 8 timeslots of 577
μ
s each = 4.6 ms
This results in the following settings:
10.3.3
Example 2: DECT telephone
DECT is characterized by the following properties:
• Frequency range: 1880 MHz – 1900 MHz
• Base station is permanently active
• Number of channels: 10
• Channel bandwidth: 1728 kHz
• Cycle time: 24 timeslots of 368 µs each = 8 ms
This results in the following settings:
Table 33: Parameter settings for GSM
Parameter
Function / Setting
Fcent
Center frequency of GSM channel to be observed,
e.g.
931.1879 MHz
Sweep Time
8 timeslots x 577
μ
s =
4.6 ms
Time Resolution
4.6 ms / 600 = 7.7
μ
s –> selected:
5
μ
s
RBW
200 kHz
Axis
Individual axis
Table 34: Parameter settings for DECT
Parameter
Function / Setting
Fcent
e.g. Channel 10:
1897.344 MHz
Sweep Time
24 timeslots x 368
μ
s =
8 ms
Time Resolution
1/RBW = 1/2 MHz =
500 ns
RBW
1728 kHz –> selected:
2 MHz
Axis
Individual axis
Summary of Contents for SRM-3006
Page 1: ...SRM 3006 Selective Radiation Meter Operating Manual ...
Page 12: ...Contents X SRM 3006 Narda ...
Page 15: ...1 Introduction Narda SRM 3006 3 Figure 1 SRM 3006 in on site use ...
Page 24: ...1 Introduction 12 SRM 3006 Narda ...
Page 50: ...3 Connecting Up and Starting to Use the Device 38 SRM 3006 Narda ...
Page 64: ...4 Operation and Basic Settings 52 SRM 3006 Narda ...
Page 128: ...8 Spectrum Analysis Mode 116 SRM 3006 Narda ...
Page 146: ...10 Scope Mode 134 SRM 3006 Narda ...
Page 168: ...12 Spatial Averaging 156 SRM 3006 Narda ...
Page 178: ...13 Measurement Data Memory 166 SRM 3006 Narda ...
Page 182: ...14 Maintenance and Repairs 170 SRM 3006 Narda ...
Page 186: ...15 PC Software 174 SRM 3006 Narda ...
Page 192: ...16 Remote Control 180 SRM 3006 Narda ...
Page 217: ...17 Specifications Narda SRM 3006 205 17 8 Declaration of Conformity ...
Page 218: ...17 Specifications 206 SRM 3006 Narda ...
Page 224: ...18 Annex A 212 SRM 3006 Narda ...
Page 230: ...19 Ordering Information 218 SRM 3006 Narda ...
Page 238: ...Index 226 SRM 3006 Narda ...
Page 239: ......