NARDA NBM-550, Operating Manual

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1.3 About the EHP-50 Analyzer (option)
Narda NBM-550
3
Applications
The NBM-550 makes precision measurements for human
safety purposes, particularly in workplace environments
where high electric or magnetic field strengths are likely. It
can also be used to demonstrate the electromagnetic
compatibility (EMC) of devices and equipment.
Examples:
• Measuring field strengths as part of general safety
regulations
• Measuring the field strengths around transmitting and
radar equipment to establish safety zones and for
monitoring during operations
• Measuring the field strength emanating from mobile
phone repeaters and satellite communications systems
to ensure compliance with human safety limit values
• Measuring the field strength in the industrial workplace
environment, such as plastics welding equipment, RF
heating, tempering, and drying equipment
• Measurements to ensure the safety of persons using
diathermy equipment and other medical equipment that
generates high frequency radiation
• Field strength measurements in TEM cells and absorber
chambers
1.3 About the EHP-50 Analyzer (option)
The optionally available EHP-50 Analyzer can be used to
measure either electric or magnetic fields in the frequency
range between 1 Hz and 400 kHz. As well as wideband
measurement, it is also possible to perform spectrum
analysis on the LF fields because of the FFT function built
into the EHP-50. It is also possible to display the numerical
value of the highest peak in the spectrum (“Highest Peak”).
The IEC 6176-2 Weighted Peak method (time domain) is
provided to allow standard-compliant measurement of
complex signal shapes. The EHP-50 Analyzer can be
operated as a stand-alone system since it has its own power
supply and built-in signal processing. It forms a complete
measuring system for recording, processing, storing and
displaying LF field measurements when used in conjunction