SolderSmoke Video -- Mythbuster Video #2 -- 10 pole Crystal Filter
Автор: SolderSmoke -- Homebrew Ham Radio
Загружено: 2021-07-12
Просмотров: 1852
Описание: This is a 5.2 MHz crystal filter. I used the G3UUR method for determining the crystal's motional parameters. I then used Dishal and AADE software to design a 10 pole Cohn Min-Loss filter. I tested the bandwidth with an Antuino Scalar Network analyzer (thanks Farhan!) and a NanoVNA. I found the passband to be a bit tight for SSB, so I replaced the capacitors with caps of a slightly lower value -- this broadened the passband. It is still a bit tight, but the SSB audio is perfectly understandable.
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