- test antenna
- 试验天线
English-Chinese computer dictionary (英汉计算机词汇大词典). 2013.
test antenna
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Reference antenna — A reference antenna is an antenna with known performance. It is normally used to calibrate other systems.Reference antennas are built with particular care taken to make them simple, robust and repeatable. In a common usage scenario a reference… … Wikipedia
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Indian Head test card — The Indian Head Test Card was a black and white television test pattern which was introduced in 1939 by RCA of Harrison, New Jersey as a part of the RCA TK 1 Monoscope. 20th century television later became so important socially that this purely… … Wikipedia
Indoor antenna — An Indoor antenna is a type of Radio or TV Antenna placed indoors, as opposed to being mounted on the roof. Indoor antennas are usually a simple and cheap solution that may work well when the receiver is relatively near to the broadcasting… … Wikipedia
