User's Manual Part 1

Glossary
WiFi Advisor Wireless LAN Analyzer User’s Guide
Page 62 22073751, Rev. 002 December 2014
MTTO — Mean Time To Optimize
MTTR — Mean Time To Repair
O OFDM — Orthogonal Frequency Division Multiplexing
R Retransmission retries — For packets requiring retransmission, this is the
number of retries required to successfully retransmit the packet
RF — Radio Frequency. RF energy can cause interference
RSSI — Received Signal Strength Indication
S SNR — Signal to Noise Ratio
Spectral — A spectrum analyzer is used to measure signal amplitude (strength) as
it varies by signal frequency. The frequency appears on the horizontal axis, and the
amplitude is displayed on the vertical axis.
A spectrum analyzer can be used to determine whether or not a wireless transmitter
is working according to federally defined standards for purity of emissions. Output
signals at frequencies other than the intended communications frequency appear
as vertical lines (blips) on the display. A spectrum analyzer can also be used to
determine, by direct observation, the bandwidth of a digital or analog signal.
SSID — Service Set Identifier. The network that we are connected to (or attempting
to connect to).