[RFI] 40 Meter RFI Issue

[Michael Coslo]

Good day all,

I have an RFI Problem, on 40 meters.

Using a FlexRadio, on the waterfall, I can see a lot of vertical bars, evenly spaced across the band, starting around 6.4 MHz and moving up, finally petering out near 8 MHz.

I can give the frequencies of the bars as roughly:

6.89, 6.9 6.9, 6.95, 6.98, 7.01,7.05, 7.08, 7.1, 7.146, 7.178, 7.21, 7.24, 7.27, 7.3, 7.33, and so on.

The noise then continues around S7 during the day, and fades out in the afternoon. Beyond 40 meters, it’s clear.

Also, from 4-5 MHz, the entire range has about an S7 noise on it.


I do have screenshots if anyone thinks they might have some input.


-73 de Mike N3LI -