| 摘要: |
| 一超短波电台在湿热试验中无信号输出，经过分析验证，发现三防漆厚度增加是电台高放调谐回路发生偏移，导致故障的主要原因。通过理论分析和试验数据，阐明了三防漆厚度引起电台失谐的机理，以此对电台的设计和生产提供工艺指导。 |
| 关键词: 超短波电台 高放调谐回路 三防漆 涂覆厚度 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:August 10, 2006Revised:October 12, 2006 |
| 基金项目: |
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| Effect of the Thickness of Three-proofing Lacquer on the High-frequency Amplifying Loop of a VHF Radio |
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| Abstract: |
| A VHF radio has no output signal in humid heat test. After analysis and validation, it is found that it is the thickening of three - proofing lacquer that results in the deviation of high - frequency amplifying tuning loop of the radio. Through theoretic analysis and test, the mechanism of the thickness of three - proofing lacquer resulting in the detuning of radio is explained, which benefits to the design and manufacturing of the radio. |
| Key words: VHF radio high - frequency amplifying tuning loop three - proofing lacquer coating thickness |
