NARDA IDA - Page 281

18.3 Horizontal Scan in practice
Narda IDA-3106 273
Full Span Full bandwidth All frequency values set using Fcent/Fspan or
Fstart/Fstop are reset to the maximum
possible frequency range that is defined by the
antenna connected, by the cable used, or by
the IDA-3106 itself.
GPS Global Positioning System
Global positioning system
The global positioning system is a satellite
navigation system developed by the US
Ministry of Defense that is used to determine
positions and to measure time throughout the
world.
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.
I/Q data – Recording an I/Q demodulated signal enables
the reconstruction and analysis of signal
characteristics of any complexity. The RF signal
is represented by the components I and Q,
resulting from the complex output signal of a
base-band demodulation (I/Q demodulation).
• I data: Real part (In-phase)
• Q data: Imaginary part (Quadrature-phase)
LSB Lower Side Band
Lower side band
The lower of the two sidebands that occur
through amplitude modulation.
Magnetic
Declination
Magnetic declination Describes the angle between the geographic
(true) and the magnetic North and is used to
correct the compass reading at a given location.
You can find the declination values for any
location at (e.g.):
http://www.magnetic-declination.com
Pavg Power Average
Average power
Average value of the power. Pavg corresponds
to the Time Domain Power measurement.
Ppeak Power Peak
Peak power
Peak value of power
Term or
Abbreviation
Meaning Function / Explanation