Amateur Radio RF Choke Box
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Simple box to put my RF Choke in
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Model information
- Source
- Printables
- Category
- Other Gadgets
- License
- Creative Commons — Attribution
I made a simple RF Choke using a 2.4" toroid and some RG8X cable. These are attached to your antenna feed line to isolate the feed line from the antenna and filter out bad stuff. It's a fun project. Anyway I needed a box to put it in. This box has vent holes. If it is to be permanently outside it would need to be sealed. I use mine in a portable setup so it's really not out in the weather.
I'm not going to detail how to build a choke here. There are literally tons of YouTube videos and websites that explain them further and describe how to build them.
I printed it out of PETG with a 15% infill. You'll also need four M3x8 wood screws for the lid. I designed it using OpenSCAD which is free. My source file is included here.
Also note for the lid: If you slice it with a layer change at 2.20 and then change the filament color you will get the text in a different color.
I put BNC connectors on this one. It would be easy enough to adapt to SO-239/PL-259 or SMA.