T2FD results (58 ft)

[ChrisSmolinski]

If you're getting RFI into the shack on the incoming coax, you can try grounding it in multiple places along the run, I've found this helps. A few years ago I did this with all my incoming coax, which is also buried in conduit. I use cable TV RG-6 grounding blocks which are plentiful and cheap on eBay.

This post about my beverage antennas describes the general principles: https://www.hfunderground.com/board/index.php/topic,74042.0.html

[syfr]

Going to add a series resonant LC filter for 1090 to the BC band stop board and see what that does.

[Josh]

A HAM reported much reduced rfi after porting his coax runs through a dryer vent hose, the kind with the wire spiraling, said spiral of wire grounded at one end. Jussayin.