The evaluation of 500 kW shortwave transmitters at the Voice of America

Berman G.A.; Garlington T.R.

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The evaluation of 500 kW shortwave transmitters at the Voice of America

机译：美国之音对500 kW短波发射机的评估

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The Voice of America (VOA) has initiated a major program to modernize and expand its worldwide broadcast system. The program includes the procurement of 500-kW shortwave transmitters both for new stations and as replacements for aging and less efficient equipment in existing facilities. To develop and verify a specification for new transmitters, four currently available 500-kW transmitters were purchased from separate vendors for evaluation at the VOA facility in Greenville, North Carolina. The intent of this off-the-shelf approach was to ensure a proper level of technical rigor in the specification without unduly restricting competition among suppliers. The evaluation focused on a variety of factors including installation, performance, operability, and maintainability. The procedures followed during the evaluation are described and some of the salient findings are presented.

机译：美国之音（VOA）已启动一项重要计划，以现代化和扩展其全球广播系统。该计划包括为新台站采购500 kW短波发射机，并替换现有设施中陈旧且效率较低的设备。为了开发和验证新变送器的规格，从其他供应商处购买了四个当前可用的500 kW变送器，以在北卡罗来纳州格林维尔的VOA工厂进行评估。这种现成的方法的目的是在规范中确保适当水平的技术严格性，而又不过度限制供应商之间的竞争。评估集中于各种因素，包括安装，性能，可操作性和可维护性。描述了评估过程中遵循的程序，并介绍了一些明显的发现。

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《IEEE Transactions on Broadcasting》 |1988年第2期|P.147-153|共7页
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Berman G.A.; Garlington T.R.;
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正文语种 eng
中图分类无线电设备、电信设备;
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The evaluation of 500 kW shortwave transmitters at the Voice of America

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