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uBITX 160m air core filter

uBITX 160m air core filter

thingiverse

The uBITX as delivered, doesn't have decent filtering for 160m yet the radio works in all other aspects for the 1.8-2mhz band. This low pass filter utilizes standard air core coils and is effective. One terminal goes to the radio and the other to the antenna. Obviously the design isn't mine but the implementation is. You will need a radio license to be legal transmitting with a micro BITX. I used a bit of polyurethane glue to hold the wire to the printed forms. 73

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