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I added a picture (wish I could show the picture or a thumbnail.
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I can display it for you; nice job, chris.
This is what the MCM FM Trap looks like inside:
diagram
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Do you happen to know what is inside an HLSJ?
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Inside is a low pass filter and a high pass filter, just as there is inside a UVSJ, but for different frequencies. The general term for these filters is a diplexer. All UVSJs are diplexers, but not all diplexers are UVSJs.
Here is a DIY 5-pole Diplexer, AKA UVSJ:
DIY photos
http://www.is0grb.it/duplexer/
DIY 3-pole HLSJ; 5-pole would be better:
source:
http://www.electro-tech-online.com/t...ircuit.122182/
post #12
http://www.electro-tech-online.com/t.../#post-1008775