17 Specifications
258 IDA-3106 Narda
17.3.7 Multi-Channel Power
17.4 Antenna handle and antennas
17.4.1 Antenna handle
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 x 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.
• Individual: separately defined for each individual service
minimum service bandwidth divided by 4 (Other needs to be off)
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
Trace, 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.
Noise threshold • Selectable at 0, 3, 6, 10, 15, or 20 dB relative to device noise
floor.
• Measurement values below the threshold are shown as
“< absolute threshold value”.
Frequency range • 9 kHz to 6 GHz
• Frequency response correction is applied automatically when
used in conjunction with the IDA basic unit.
Preamplifier • Built in, can be switched off
• Amplification 20 dB, noise figure < 6 dB
Compass • Embedded electronic compass,
Azimuth uncertainty < 1.5° RMS (typ.) for tilt < 15°
• Pitch- and roll uncertainty < 3° RMS (typ.) in the range of 30°
(RMS means the standard deviation of the specified error)
Connection cable to
IDA basic unit
RF cable and control cable combined in a flexible tube,
length of 1 meter
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