曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
Equipment which is operationally independent of the Main and Standby Equipment, rapidly available for use when required, and used exclusively for the controlled shutdown of an Air Traffic Service in a safe manner.
Fixed, Stationary, Vehicle, Portable and Hand Held.
The use of a combination of Main, Standby and Emergency equipment to improve the overall system reliability and to ensure the continuity of service.
Transmitter, Receiver and Transceiver.
F
Fixed Equipment Fixed equipment is that which is permanently installed at a specific location with external connections for power supplies, antennas, audio (microphone and loudspeaker) connections. e.g. Cabinet or rack mounted equipment.
H
Hand Held Equipment Equipment with integral battery, antenna, PTT key, microphone and loudspeaker, designed to be operated whilst being carried in the hand or worn on the body. Provisions may be made for external connections for antenna, PTT key, microphone, headphone and external power supply or battery pack and desktop cradle or mounting unit, which may enable it to be classified in the Stationary Equipment Category.
M
Main Equipment The terms 'Main' and 'Standby' are generally used to describe identical or similar equipment, configured within a system to provide equipment redundancy, in order to improve the overall reliability and to ensure the continuity of service. The terms may also be applied to sub-equipment and modules as well as facilities, functions and services.
P
Portable Equipment Equipment with integral battery, antenna, PTT key, microphone and loudspeaker, designed to be operated as a self contained unit either whilst being carried or at a temporary location. Provisions may be made for external connections for antenna, PTT key, microphone, headphone and external power supply or battery pack, which may enable it to be classified in the Stationary Equipment Category.
Power (of a radio transmitter) The power of a radio transmitter can be expressed in terms of peak envelope power (PX or pX), mean power (PY or pY) and carrier power (PZ or pZ) according to the class of emission. The symbol 'p' denotes power expressed in watts and symbol 'P' denotes power expressed in decibels relative to a reference level. [Based on ITU RR S1.156]
R
Radio Service Area The Radio Service Area is that volume of airspace, bounded by the DOC and a lower height limit within which communications of a specified quality of service are provided. An alternative to defining a lower height limit, where this cannot easily be defined for the whole of the DOC, is to identify areas where the communications quality of service is below that specified.
S
Standby Equipment The terms 'Main' and 'Standby' are generally used to describe identical or similar equipment, configured within a system to provide equipment redundancy, in order to improve the overall reliability and to ensure the continuity of service. The terms may also be applied to sub-equipment and modules as well as facilities, functions and services.
Stationary Equipment Stationary equipment is that which is installed at a specific location with external connections for power supplies, antennas, audio (microphone and loudspeaker) connections, which is physically mounted such that it can easily be moved once external connections have been released. e.g. Desktop equipment.
V
Vehicle Equipment Equipment designed for operation and permanent or temporary installation in a vehicle with provision for external connections to vehicle battery, antenna, PTT key, microphone and loudspeaker. Provisions may be made for use of an external power supply or battery pack and desktop cradle or mounting unit, which may enable it to be classified in the Stationary Equipment Category.
W
WT Act Wireless Telegraphy Act 2006.
CAP 670 Air Traffic Services Safety Requirements
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：CAP 670 Air Traffic Services Safety Requirements 2(7)
