User manual

120 20131-301 Gemini G3 – User Manual

Spatial Diversity Composite information from independent diversity branches using antennas

spaced apart is used with “Smart Combining” to minimize fading and other unde-

sirable effects of multipath propagation. (See Parallel Decode)

SRRCnFSK Square Root Raised Cosine (n = level) Frequency Shift Keying. Type of fre-

quency modulation of data signals performed by the GeminiG3 radiomodem.

Static IP Address A fixed address assigned to a computer or an interface that is connected to a net-

work.

Static Routing The forwarding of data in a network via a fixed path.

Subnet Mask A bit mask used to select the bits from an IP address that correspond to the sub-

net. Each mask is 32 bits long, with one bits in the portion that identifies a net-

work and zero bits in the portion that identifies a host.

Switch (Ethernet) Computer-networking device that allows sharing a limited number of ports to

connect computing devices to host computers. Replace network hubs.

TCP/IP Transmission Control Protocol/Internet Protocol - A network protocol for trans-

mitting data that requires acknowledgement from the recipient of data sent. Han-

dles retries and flow control.

Telnet A user command and TCP/IP protocol used for accessing remote PCs.

TFTP Trivial File Transfer Protocol - A version of the protocol that has no directory or

password capability. Depends on UDP and is used on local network.

Topology The physical layout of a network.

Transparent A transparent unit transmits all data without regard to special characters, etc.

Tx/Rx LED Airlink data activity

UDP User Datagram Protocol - A network protocol for transmitting data that does not

require acknowledgement from the recipient of the data that is sent.

Upgrade To replace existing software or firmware with a newer version.

URL Universal Resource Locator - The address of a file located on the Internet.

VIS Vehicular Information Solutions. Dataradio’s name for a series of products spe-

cially designed for mobile data.

WINIPCFG A MS-Windows 98 or MS-ME utility that displays the IP information for a par-

ticular networking device.

WLAN Wireless Local Area Network - A group of computers and associated devices that

communicate with each other wirelessly.