Received Signal Strength Indicator, RSSI

Radio signal strength reported by the wireless interface to Covera Zone

dBm, decibel

Logarithmic unit for radio signal strength, reported by your Wireless NIC

NIC, Network Interface Card or Network Interface Controller

Computer hardware designed to allow computers to communicate over a network.


stands for the National Marine Electronics Association. NMEA 1083 Standard defines GPS data exchange over a serial line.


GPS, stands for Global Positioning System. A radio-localization system formed from a constellation of 24 satellites. Can optionally be used by Covera Zone for outdoor surveys.

Network Driver Interface Specification, NDIS

Windows API for "Network Interface Cards", including wireless devices. NDIS5.1 is supported in Covera Zone 2.0

MAC address

A unique identifier for all the Wi-Fi access points or NICs.

Service Set Identifier, or SSID

A code attached to all packets on a wireless network to identify each packet as part of that network

Equivalent Isotropically Radiated Power or EIRP

Amount of power that would have to be emitted by an isotropic antenna (that evenly distributes power in all directions) to produce the peak power density observed in the direction of maximum antenna gain.

Path Loss

Attenuation undergone by a RF wave in transit from a transmitter to a receiver. Path loss may be due to many effects such as free-space loss, refraction, diffraction, reflection.


In communication networks, throughput is the amount of digital data per time unit that is delivered to a certain terminal in a network, from a network node, or from one node to another, for example via a communication link. The throughput is usually measured in bit per second (bit/s or bps).


Iperf is a tool to measure maximum TCP bandwidth, allowing the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss.