Atec Narda-IDA-3106 - Manual (Page 9)

MULTI CHANNEL POWER
Measurement principle Spectrum analysis, followed by Channel Power evaluation
Number of channels 1 to 500, to be defined on instrument or by IDA-Tools PC software
Channel band width CBW, (-3 dB nominal) Individually selectable for each channel, from 40 Hz to 6 GHz
Roll-off factor < 4 * RBW / CBW
Applied RBW
Automatic: Frequency range of channel divided by 4 but not more than 20 MHz
Manually: Can be set in the range of available RBWs of spectrum analysis, but not more
than CBW of channel divided by 4
Name of channel
User definable, maximum 15 characters
Automatic creation of communication channel lists by PC software. Channel name is
assigned automatically
Detection Root mean square value (RMS), integration time = 1 / RBW
Result Type, Unit, RBW See spectrum analysis mode
Display: Table view
Channel name, corresponding frequency band, measurement result, RBW if set individually
for each channel
Sort function according to columns
Display: Bar graph view Bar graph for measurement result of each channel
Evaluation function: Distribution Distribution of each channel in relation to total amount
Marker functions
for bar graph view
Highest peak, next peak right, next peak left, next higher peak, next lower peak
Information provided by marker: channel index, level, channel name according to selected
channel table
Delta marker to measure difference in level between two different channels
or to display the difference between two different result types e.g. average and maximum at
the same channel
Noise threshold
Identifies whether measured values are above device noise floor. Setting of an additional
threshold possible. Selectable at 0, 3, 6, 10, 15, or 20 dB relative to device noise floor.
Measurement values below threshold are shown as the absolute threshold value marked with
“<” (less than threshold)
Others
Summarizes all measurement values for frequency gaps within the list of channels and
shows the total value for all gaps. Value is displayed as an additional channel in the channel
list. Can be switched off if not required
Extras (Transfer parameters) Transfers center frequency and span to other operating modes
SCOPE (OPTION)
Measurement principle Selective level measurement at a selectable frequency from 9.05 kHz to 5.999 999 95 GHz
Resolution bandwidth RBW, (-6 dB nominal)
100 Hz to 32 MHz (in steps of 100, 125, 160, 200, 250, 320, 400, 500, 640, 800, 1000,…, 10
MHz, 13.333 MHz, 16 MHz, 20 MHz, 26.666 MHz, 32 MHz)
Type Steep cut-off channel filter (app. raised cosine)
Filter
Roll-off factor 0.16
Video bandwidth (VBW) Off, 0.01 Hz to 32 MHz (depending on the selected RBW)
Sweep Time 500 ns to 24 h
Time Resolution Selectable from 31.25 ns up to 90 min
Time resolution = 1/ RBW
Act: Instantaneous magnitude value
I, Q or I & Q (Option, I/Q Demod Recorder)
Result type
Time resolution > 1/ RBW
MAX: Maximum value within the time resolution interval (corresponds to peak detector).
AVG: Average value within the time resolution interval (corresponds to RMS detector).
MIN: Minimum value within the time resolution interval.
Marker function
Highest peak, next peak right, next peak left, next highest peak, next lowest peak
Delta marker
Evaluation functions Duty cycle (ratio of average power to maximum power)
Display function
Magnitude
I/Q Real and imaginary part (Option, I/Q Demod Recorder)
Triggering
Free run, single, multiple, manual start, time controlled
Programmable trigger level, trigger slope and trigger delay
Extras (Transfer parameters) Transfers center frequency and span to other operating modes
NSTS 0911-E0280B 9 / 14 Subject to change without notice