20 Glossary
220 SRM-3006 Narda
Term or
Abbreviation
Meaning Explanation
AM Amplitude modulation Modulation method (used for radio
broadcasting, for example)
Avg Average The measured values are averaged over a
certain number of measurements or over a
specific time period. The resulting value (also
called the RMS value) is displayed.
BOS Behörden und
Organisationen mit
Sicherheitsaufgaben
(Security authorities and
organizations)
BOS radio is a non-public mobile UHF
terrestrial radio service used in Germany by
police, customs, fire brigades, rescue services
and other emergency services.
Tetra is a subgroup of BOS.
DVB-T Digital Video Broadcasting
Terrestrial
Terrestrial digital transmission of television
signals.
Fcent Center frequency Center frequency in a frequency range.
FM Frequency modulation Modulation method.
Fmax Upper limit frequency Highest frequency in a frequency range.
Fmin Lower limit frequency Lowest frequency in a frequency range.
Fspan Frequency span Frequency band centered about the center
frequency Fcent.
Full Span Full bandwidth All frequency values set using Fmin, Fmax,
Fcent or Fspan are reset to the maximum
possible frequency range that is defined by the
antenna connected, by the cable used, or by the
SRM-3006 itself.
GPRS General Packet Radio
Service
Packet-switched service used for data
communications in GSM networks.
GSM Global System for Mobile
Communications
Standard for fully digital mobile
telecommunications networks; mainly used for
telephony but also used for circuit- and packet-
switched data communications.
ICNIRP International Commission
on Non-Ionizing Radiation
Protection)
Independent international group of scientists
researching the effects of non-ionizing radiation
on human health.
Isotro
pic
measurement
Measurement of radiation unif
ormly radiated in
all directions of 3-dimensional space.
Max Maximum Maximum value of all measurement values.
Max Avg Maximum Average Maximum value of all averaged measurement
values.
Min Minimum Minimum value of all measurement values.
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