NARDA SRM-3006, Operating Manual

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17 Specifications
184
SRM-3006 Narda
17.1.2 Modes
Spectrum Analysis mode
Measurement principle Spectrum analysis
Resolution bandwidths
(RBW) (-3 dB) 10 Hz to 20 MHz (in steps of 1, 2, 3, 5, 10, 20)
List of available RBWs depends on selected sweep SPAN
Measurement range
setting (MR) • Set individually from a list or
• using the
MR Search
function for determining the optimum
measurement range at a given time
Video bandwidth
(VBW) 0.2 Hz to 2 MHz (depending on the selected RBW)
Filter • Type: Gaussian
• Shape factor (- 3 dB/- 60 dB):
< 3.8 (for RBW
≤
100 kHz)
Evaluation functions • ACT: Displays current (actual) spectrum
• MAX: Maximum hold function
• AVG: Average over a selectable number of spectra (4 to 256) or a
selectable time period (1 to 30 minutes)
• Max AVG: Maximum hold function after averaging over a defined
number of spectra
• Min: Minimum hold function
• Min AVG: Minimum hold function after averaging over a defined number
of spectra
• Standard: Display of the selected safety standard.
Marker functions • Delta marker on one Result Type or for displaying the difference
between two Result Types
• Highest peak, next peak right, next peak left, next higher peak, next
lower peak
• Marker field (frequency, level, service name according to the selected
service table)
Evaluation functions • Peak table (list of 50 highest peaks)
• Integration over a user-specified frequency range
Axis • Isotropic measurement (isotropic result displayed directly)
• Measurement of X-, Y- or Z- axis (separate measurement of a single
axis using the isotropic / three axis antenna)
Zoom • Zoom Min: Sets the lower frequency limit of the zoom window
• Zoom Max: Sets the upper frequency limit of the zoom window
• Zoom Cent: Moves the zoom window along the frequency axis
• Zoom Span: Changes the scale of the zoom window
• Execute Zoom: Sets the zoom window limits to the selected frequency
values
Display functions • Y-scale range 20, 40, 60, 80, 100 or 120 dB
• Y-scale reference MR -100 dB to MR + 20 dB (-130 dB to 40 dBm)
• Screen arrangement: Enlarges result display area by hiding other
information.