LTSpice will do this.
This is a very powerful general purpose analog simulator. You will need to draw
the filter schematic and apply the stimulus. Watch the instructional videos to
understand how to use it.
https://www.analog.com/en/resources/design-tools-and-calculators/ltspice-simulator.html
-Leandra AF1R
________________________________
From: VHFcontesting
<vhfcontesting-bounces+leandra=leandramac.com@contesting.com> on behalf of
David R Buckwalter via VHFcontesting <vhfcontesting@contesting.com>
Sent: Tuesday, November 25, 2025 8:02 AM
To: 'VHF Contesting' <VHFcontesting@Contesting.com>; Moon-Net@groups.io
<Moon-Net@groups.io>
Subject: [VHFcontesting] RF Filter analysis software
Does anyone know of a software package or web site that I can use to do RF
filter analysis? I am looking for something where I can input values of a
filter and see/analyze the bandpass/cutoff characteristics. There are
plenty of sites where I can design filters by inputting freq/type, etc and
it will calculate values (markimicrowave.com), but I want to do the
opposite. I have the values and want to see what it looks like.
Dave - K3SK
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