주파수 카운터

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작성자택배왔어요 조회 11회 작성일 2021-04-08 20:05:03 댓글 0

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주파수 측정을 위한 주파수카운터 사용방법

수정발진자 주파수 측정을 위한 지그및 주파수카운터 사용방법에 대한 강의입니다.

The Heathkit IM-4100 Frequency Counter

In this video I look at an example of the Heathkit IM-4100 digital frequency counter including its history, features, a demo of it operating, and the restoration of this unit.

Crystal Tester And Frequency Counter TS-905

Note: this is not an in-depth test. The instructions, layout diagram, parts list, and schematic are shown at the end of the video. This test instrument seems to be based on the PIC 16F628 microcontroller. Further information is available here: https://www.qsl.net/dl4yhf/freq_counter/freq_counter.html
Oddly enough, the instrument performed much better after I played around with the programming switch. Overall I would say It was worth the money, although I did not really need it; more like a gadget. The crystal socket sits too deep once the case is put together and some of the screws seemed too short, at least for me. Also, this is not a high-resolution counter; when I fed a 111,000 Hz sine wave into the frequency counter, I read 11099; I could only guess that it was within 10 Hz.

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