It’s a simple high pass audio filter, don’t overthink it. Surely the tolerance values of the components are going to far outweigh any contributions to the circuit from PCB tracings.
73, Mike Diehl W8LID
On Jul 19, 2018, at 07:19, Samudra Haque [TTLLC] sehaque@tekterrain.com wrote:
I'm currently wondering if there is a guideline in general to select filter components so that they are realistic / common part values and still get the performance desired? The calculations might result in exact values for C, R, and might not include accommodation for the C* and R* of the PCB traces, or of the associated wiring - what are practical steps to allow for real world filter construction.
Also - suddenly I am wondering if I shouldn't be looking for a vendor who supplies/manufacturers pre-designed filter blocks for inclusion in my projects. Mouser?
Samudra N3RDX.
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Zach Metzinger Sent: Wednesday, July 18, 2018 2:55 PM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] 67 Hz filter
On 07/18/18 13:43, Ashhar Farhan wrote: I am brewing a satellite receiver. The 67 Hz CTCSS tone is quite annoying. Is there anyway to easily filter it out?
How about a simple high-pass filter?
https://www.electronics-tutorials.ws/filter/filter_3.html
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