jotron TR-910 User Manual

ppm Parts Per Million
PTT Push-to-Talk
RCMS Remote Control and Management System, usually an IP-based network to monitor
and control radios and accessories (=RACS).
RF Radio Frequency
RSSI Received Signal Strength Indicator is a measurement of the power present or level
of a received radio signal.
Rx Receiver, Recepon
RTP Real-me Transport Protocol. Used for Voice Over IP (VoIP).
SDR Soware-Defined Radio is a system where components that tradionally have been
implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators,
detectors, etc.) now are implemented by means of soware on an embedded
compung devices, i.e. a Digital Signal Processor (DSP).
SIP Session Iniaon Protocol is an IETF-defined signaling protocol, widely used for
controlling mulmedia communicaon sessions such as voice and video calls over
the Internet Protocol (IP). The protocol can be used for creang, modifying and
terminang two-party (unicast) or mulparty (mulcast) communicaon sessions
consisng of one or several media streams.
S/N Signal-to-Noise Rao
SNMP Simple Network Management Protocol is a UDP-based network protocol. It is used
mostly in network management systems to monitor and control network connected
devices like the Jotron radios. SNMP is a component of the Internet Protocol
Suite as defined by the Internet Engineering Task Force (IETF). It consists of a set
of standards for network management, including an applicaon layer protocol, a
database schema, and a set of data objects.
SQ Squelch
SW Soware
TCP Transmission Control Protocol
TCXO Temperature Compensated Crystal Oscillator.
TRx Transceiver
Tx Transmier, transmission
UDP User Datagram Protocol
VCO Voltage-controlled Oscillator
VHF Very High Frequency (VHF is defined by the band 30-300 MHz). In the content of this
book, it refers to the internaonal communicaon band for air traffic control (118-
137 MHz)
VOGAD Voice Operated Gain-Adjusng Device is a type of automac gain control for
microphone/TX line amplificaon. It is used in radio transmiers to ensure correct
modulaon and to prevent clipping caused by overmodulaon.
VoIP Voice over IP (VoIP) is a general term for a family of transmission technologies for
delivery of voice communicaons over IP networks such as the intranet/Internet or
other packet-switched networks.
VSWR Voltage Standing Wave Rao
Doc. No.: 103614 TR-910 Operator Rev. AB jotron.com 9

jotron TR-910 Specifications

General

Brand	jotron
Model	TR-910
Category	Radio
Language	English