M79 广播、电视设备的维护 标准查询与下载

GY/T 166-2000 有线电视广播系统运行维护规程

Regulations for operations and maintenance of CATV broadcasting system

GY/T 128-1995 卫星广播电视地球站维护管理规程 (C频段)

Maintenance Regulations of the C-Band Satellite Earth Station for Radio and TV

GY/T 126-1995 广播中心录制系统维护规程

Regulations Maintenance of Recording & Producing System of Broadcasting Centre

GY/T 107-1992 电视中心播控系统维护规程

Rules of maintenance of broadcasting and control system at television centers

GY 104-1991 广播电视微波电路维护管理规程

Rules of maintenance and management of broadcasting and television microwave circuit

ITU-R REPORT BS.1060-1-1990 调幅广播的节能方法及其对接受质量的影响

For high-power amplitude modulation transmitters used for LF, MF,and HF broadcasting, reduction fo power consumption has always been of major importance. Power consumption savings can be achieved by improving the efficiency of transmitters and/or by using other amplitude modulation techniques.

Energy saving methods in amplitude modulation broadcasting and their influence on reception quality

GY/T 54-1989 广播传音电缆维护规程

Rules of maintenance for broadcasting program cables

ITU-T M.535 SPANISH-1988 多重目的不定向(MU)集团和超级集团链路的特殊维护程序.4号研究组

The Recommendations covering the maintenance of groups and supergroups will apply as far as possible but there will be a number of new maintenance problems which are peculiar to multiple destination links. In particular, arrangements will be needed to check the performance of the MU main section of such links. In order to simplify the procedures and minimize interference to other users of the common path, it is recommended that the send reference station (see Figure1/M.460) for the MU main section should act as a focal point for reports and inquiries concerning the MU main section. The group, supergroup, etc., control stations will still be responsible for localizing a fault to a particular section of a link in accordance with Recommendation M.130.

SPECIAL MAINTENANCE PROCEDURES FOR MULTIPLE DESTINATION, UNIDIRECTIONAL (MU) GROUP AND SUPERGROUP LINKS

ITU-T M.535 FRENCH-1988 多重目的不定向(MU)集团和超级集团链路的特殊维护程序.4号研究组

The Recommendations covering the maintenance of groups and supergroups will apply as far as possible but there will be a number of new maintenance problems which are peculiar to multiple destination links. In particular, arrangements will be needed to check the performance of the MU main section of such links. In order to simplify the procedures and minimize interference to other users of the common path, it is recommended that the send reference station (see Figure1/M.460) for the MU main section should act as a focal point for reports and inquiries concerning the MU main section. The group, supergroup, etc., control stations will still be responsible for localizing a fault to a particular section of a link in accordance with Recommendation M.130.

SPECIAL MAINTENANCE PROCEDURES FOR MULTIPLE DESTINATION, UNDIRECTIONAL (MU) GROUP AND SUPERGROUP LINKS

ITU-T M.535-1988 多重目的不定向(MU)基群和超群链路的特殊维护程序.4号研究组

The Recommendations covering the maintenance of groups and supergroups will apply as far as possible but there will be a number of new maintenance problems which are peculiar to multiple destination links. In particular, arrangements will be needed to check the performance of the MU main section of such links. In order to simplify the procedures and minimize interference to other users of the common path, it is recommended that the send reference station (see Figure1/M.460) for the MU main section should act as a focal point for reports and inquiries concerning the MU main section. The group, supergroup, etc., control stations will still be responsible for localizing a fault to a particular section of a link in accordance with Recommendation M.130.

SPECIAL MAINTENANCE PROCEDURES FOR MULTIPLE DESTINATION, UNDIRECTIONAL (MU) GROUP AND SUPERGROUP LINKS

ITU-R REPORT P.228-3-1986 甚高频(米波)和超高频(分米波)广播业务电场强度的测量,包括电视广播业务

The Recommendation describes that for the purpose of frequency assignment, the description of coverage of VHF(metric) and UHF(decimetric) broadcast services (television broadcasting, frquency-modulation broadcasting,etc), should be in terms of the extent to which service is provided to protential viewers or listeners.

Measurement of field strength for VHF (metric) and UHF (decimetric) broadcast services, including television

ITU-R REPORT BS.1063-1986 中频(MF)广播再辐射的预测和控制

When the radiated field from a broadcast transmitting installation intercepts a metallic structure, currents are induced in that structure and it radiates a second field which adds vectorially to the original. This is known as re-rediation.

Prediction and control of re-radiation in MF broadcasting

ITU-R REPORT BS.943-1-1986 对声音广播电台免受大气电影响的保护

This Report, relating to sound broadcasting, complements information for the fixed and radio-relay services contained in reports 861 and 932 respectively. CCITT Study Group V is currently considering the protection of telecommunication lines and equipment against lightning discharges and overall subject of lightning protection is under review by IEC Committee TC 81

Protection of sound-broadcasting stations against atmospheric electricity

GY/T 20-1984 农村有有线广播设备维护规程

Rules of maintenance of rural cable casting equipment