6 Functions Common to More Than One Operating Mode
90
SRM-3006
Narda
To change the units:
✓
The top menu level of the operating mode is displayed.
1.
Press the
Display
softkey.
2.
Press the
Unit
softkey.
3.
Use the rotary control to highlight the desired units.
ª
The change is applied to the display immediately.
4.
Press the
OK
key.
ª
The selected units are saved.
6.9
Noise suppression (Noise Thresh.)
Safety Evaluation • Meas. Range • Noise Thresh. / Noise Suppr.
Level Recorder • Meas. Range • Noise Thresh. / Noise Suppr.
UMTS • Meas. Range • Noise Thresh. / Noise Suppr.
Every electronic instrument generates a certain level of intrinsic noise. This
noise is present in all frequency ranges, including those not occupied by
signals. It is easy to see when a signal is swamped by the intrinsic noise
when performing spectrum analysis with a graphical display of the
spectrum. To enable this distinction to be made in other operating modes, it
is possible to set a threshold. For any results below this threshold, the
instrument will not display the measured value but indicates the threshold
value and the “<” character.
You can select threshold values of 0, 3, 6, 10, 15, and 20 dB:
• 0 dB: intrinsic noise level, does not give any information about the signal
• 3 dB: usual value selected for signals with normal noise levels
• > 3 dB: for signals with higher noise levels
The threshold values are relative and always refer to the level of the intrinsic
noise floor.
To activate or deactivate noise suppression:
1.
Press the
Meas. Range
softkey.
2.
Press the
Noise Suppr.:
softkey until
OFF
is displayed (toggle function).
Noise suppression is then activated.
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: ......