NARDA SRM-3006 Manual - page 16
16
INSIGHT
A single spectrum captured using the SRM contains
thousands of measurement points. During the course
of a normal working day, the SRM may store many such
spectra along with other results. Which data is import-
ant, what information is relevant for assessing safety?
You don’t need to be a spectrum analysis specialist to
use the SRM. Nevertheless, experts can set all the par-
ameters for spectrum analysis individually and evaluate
the details manually. For example, you can zoom in on
individual lines in the spectrum, compare spectral com-
ponents using the delta marker, or read off the maxima
and minima at a specific frequency. You can also select
a video bandwidth to smooth the trace, just as with a
laboratory spectrum analyzer. The original resolution is
still retained in the background.
Selective measurement in the time domain is unique:
Pulsed signals can be displayed directly in ‘Scope’ mode
– with time intervals ranging from hours right down to
microseconds. In ‘Level Recorder’ mode, the SRM-3006
displays the instantaneous peak and RMS values as well
Detailed evaluation of a ‘Spectrum
Analysis’ in the 1800 MHz mobile
phone range (GSM-1800): Using
the Delta marker, spectral com-
ponents can be compared or the
maxima and minima at a specific
frequency can be read out.
‘Safety Evaluation’ with bar graph
display: Professional users can
immediately see the difference
between traffic channels (TCH)
and control channels (BCCH)
when the maximum, average, and
minimum values are displayed
simul taneously.
Pulsed fields in ‘Scope’ mode:
As with an oscilloscope, you can
measure impulse lengths and
period durations. And you can
also set triggers: Measure once
when the threshold is exceeded,
or each time the threshold is
exceeded – or by timer control.