442
Keysight EXG and MXG X-Series Signal Generators User’s Guide
G
Gaussian filter The Gaussian filter does not have a zero Inter-Symbol Interference (ISI). Wireless
system architects must decide just how much of the ISI can be tolerated in a system and combine
that with noise and interference. The Gaussian filter is Gaussian shaped in both the time and
frequency domains, and it does not ring like the root Nyquist filters do. The effects of this filter in
the time domain are relatively short and each symbol interacts significantly (or causes ISI) with only
the preceding and succeeding symbols. This reduces the tendency for particular sequences of
symbols to interact, which makes amplifiers easier to build and more efficient.
GPIB General purpose interface bus. An 8-bit parallel bus common on test equipment.
H
Hard key A labeled button on the instrument.
I
IF Intermediate frequency
Int Media Internal media. Nonvolatile signal generator memory, where waveform files are stored.
IP Internet protocol. The network layer for the TCP/IP protocol suite widely used on Ethernet
networks.
L
LAN Local area network
LO Local oscillator
LXI LAN eXtension for Instrumentation. An instrumentation platform based on industry standard
Ethernet technology designed to provide modularity, flexibility, and performance to small- and
medium-sized systems. See also
http://www.lxistandard.org
M
Modulation Format Custom modulation, Two-Tone, or Multitone.
Modulation Mode Dual ARB, Custom modulation, Two-Tone, or Multitone.
Modulation Standard Refers to a Cellular standard format (i.e. NADC, PDC, PHS, etc.).
Modulation Type Refers to the various I/Q constellation types (i.e. PSK, MSK, FSK, C4FM, etc.)
N
Non - volatile That which survives a power cycle (such as files stored in USB media).
