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...I tried "Elsie" but AFAICT that doesn't have any option to tell it to use only preferred values - but I could easily have missed it....
At that frequency you'll have so many parasitic effects that using calculated values is hopeless anyway.
QuoteAt that frequency you'll have so many parasitic effects that using calculated values is hopeless anyway.Are you sure about that? The centre frequency is only 10MHz.
Quote from: G0HZU on March 03, 2018, 02:40:33 pmQuoteAt that frequency you'll have so many parasitic effects that using calculated values is hopeless anyway.Are you sure about that? The centre frequency is only 10MHz.It's been my experience, at least. For the caps you're down in the pF range, for the coils uH. Layout and wires start playing quite a large role.
I don't question building filters up to 1 GHz with fixed inductors. I do question the modeling, though. But I've only done it a few times, and my calculations were always off compared to the measurements afterwards.
Iowa Hills "RFFilter" http://iowahills.com/9RFFiltersPage.html