Radio Systems and Service Definitions
1.Fixed Services (FIXED): Radio communication between defined specific points. (Example: Radio links)
2.Mobile Services (Mobile Service): Communication between mobile stations and fixed or mobile stations.
3.Land Mobile Services (Land Mobile Service): A mobile service between a fixed station and land mobile stations, or between land mobile stations.
4.Land Mobile Satellite Service (Land Mobile Satellite Service): Communication service between land mobile satellite earth stations.
5.Broadcasting (RD-TV) Services (Broadcasting Service): Communication services for voice and image (Radio and Television) transmission.
6.Broadcasting Satellite Services (Broadcasting Satellite Service): Communication services that include transmission of voice and image via satellite stations.
7.Radar Services (Radiodetermination Service): Radio communication services for radar purposes.
8.Radar Satellite Services (Radiodetermination Satellite Service): Radar services involving one or more space (satellite) stations.
9.Radiolocation Service (Radiolocation Service): Services within radar services that include location determination systems.
10.Meteorological Aids Services (Meteorological Aids Service): Services for meteorological research (observational and forecasting purposes).
11.Meteorological Satellite Services (Meteorological Satellite Service): Satellite systems for meteorological research purposes.
12.Standard Frequency and Time Signal Service (Standard Frequency and Time Signal Service): Communication service carried out at specific times on a standard frequency used in radio communications for scientific, technical, and other research.
13.Standard Frequency and Time Signal Satellite Service (Standard Frequency and Time Signal Satellite Service): Communication service broadcast at specific times on standard frequencies using satellite systems, used in radio communications for scientific, technical, and other research.
14.Space Research Services (Space Research Service): Communication services for research on space objects and related to space vehicles.
15.Amateur Services (Amateur Service): Includes uses for amateur purposes.
16.Amateur Satellite Services (Amateur Satellite Service): Communications of amateur service satellite stations.
17.Radio Astronomy Services (Radio Astronomy Service): Includes communications for astronomy purposes.
18.Safety Services (Safety Service): Services used for human safety and security purposes.
19.Special Services (Special Service): Services not defined in any service and generally designed for special purposes.
20.SCADA: The term SCADA is formed from the initials of the English words Supervisory Control And Data Acquisition, referring to a Central Management, Supervision, and Data Acquisition system. SCADA is the general term for systems that enable the supervision, monitoring, and operation within a logic of geographically widespread devices (transformers, circuit breakers, disconnectors, pumps, valves, etc.) from a central point via computer. SCADA systems provide businesses with significant savings in general expenses and offer extremely fast and efficient central control capabilities.
21.PAGING: A one-way or two-way radio communication system that provides information transfer from a base station to fixed or mobile receivers via methods such as tone, voice-tone, tactile (tactile), optical readout, etc.
22.TRUNK: Trunk Radio System is based on the principle of sharing a group of channels among multiple user groups. Frequency channel assignment to the user is made by the system, so users do not select channels.
23.COMMUNITY REPEATER (Shared Repeater): This system can be defined as the shared use of a repeater device (repeater frequency) by multiple user groups. In this system, each user group has a different CTCSS (Continuous Tone Control Signalling System) tone frequency from other groups. Thanks to this CTCSS tone signal, one group's communication is not heard by other groups.
24.GPS: Acronym for Global Positioning System in English. Defined as Global Navigation System. GPS was developed and operated by the United States Department of Defense and is a satellite-based global navigation system. Primarily designed to expand military defense capabilities, GPS capabilities have later expanded to provide highly accurate time and location information for many civilian applications. Simply put, 24 satellites with an inclination of approximately 55° to the equator orbit the Earth twice a day in six orbital paths. This satellite constellation continuously transmits high-frequency encoded direction and time information. GPS receivers, with antennas positioned to clearly see these satellites, receive these signals and determine position (location) in geographic coordinates.
25.DGPS: Acronym for Differential Global Positioning System in English. This system operates by placing a high-performance GPS at a known point. Since the GPS knows its own position exactly, it can determine errors in satellite signals. It measures the distance to the satellite using signals received from each satellite. It compares this measured distance with the actual distance calculated using the GPS's own known position. The difference between the measured and calculated distances gives the total error. Error data for each monitored satellite is converted into a correction message and sent to all GPS users. These differential calculations are applied to GPS calculations, thereby eliminating many satellite signal errors and increasing accuracy.
26.GSM: The word GSM is formed from the initials of Global System for Mobile Communications in English, meaning "Global System for Mobile Communications" in Turkish. It is a fully digital cellular network using TDMA (Time Division Multiple Access) techniques for multiplexing operations and a transmission band around 900 MHz.
27.RadioLAN: RadioLAN is a radio local area network designed to provide flexible local communication between personal computers, laptops, work networks, servers, printers, and other network-connected equipment. They generally operate around the 5.2-5.3 GHz frequency range.
28.HiperLAN: HiperLAN is a set of radio local area network (WLAN) communication standards generally used in European countries. It has two types: HiperLAN/1 and HiperLAN/2. Both are accepted by the European Telecommunications Standards Institute. HiperLAN/1 provides communication up to 20 Mbps in the 5 GHz RF spectrum region. HiperLAN/2 provides communication up to 54 Mbps in the same frequency region. Additionally, HiperLAN/2 systems are compatible with 3G technology.
29.Voice Broadcasting: Radio one-way communication systems primarily used by official public institutions and organizations in small settlements for informing the public, making announcements, etc.
