沪江词库精选VHF TV tuner是什么意思、英语单词推荐 甚高频电视频道选择器 相似短语 VHF TV tuner 甚高频电视频道选择器 VHF solid state TV tuner 甚高频固态电视频道选择器 VHF tuner 甚高频频道选择器 compact VHF tuner 小型甚高频(电视)调谐器 VHF turret tuner 甚高频旋转式频道选择器 digital TV...
这个要在有线的模式下,电视调到TV状态,一到十二频道就是VHF,13-56频道为UHF。电视信号VHF和UHF频段范围分别是: 30--300MHz 和300--3000MHz。在电视机的高频头显示参数为1至12频道、13至56频道。
1、表1两种矢量的比较矢量模式矢量起点矢量方向矢量长度矢量终端相对矢量(RV目标现在位置相对运动航向调定矢量时间预测航程调定矢量时间预测到达位置真矢量(TV目标现在位置真运动航向调定矢量时间真航程调定矢量时间预测到达真位置3矢量使用时注意事项(1相对矢量和真矢量的含义不同,如表1所示。(2与ARPA雷达显示方式的区别...
A TV tuner circuit is provided which is capable of reducing the number of parts and the mounting area when a trapping circuit and a peaking circuit are formed and which is capable of improving the trapping effect. The TV tuner circuit includes a parallel-connected circuit formed of a first ...
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TV tuning apparatus with common mixer for UHF and VHF A tuning apparatus for a television receiver in which a television signal of the UHF band or a television signal of the VHF band is subjected to frequency conversion to obtain an intermediate frequency. The tuning apparatus allows either......
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Tropospheric bending extends the range of radio & TV stations well beyond their normal limit and thus increases interference amongst stations as well. How to use the Tropospheric Ducting Forecast Tropospheric DX Modes History of the Tropospheric Ducting Forecast ...