Ok, posting for a little help…I am seeing very low DBFS (highest is about -17 or so when planes flying directly overhead. I am seeing planes 40 miles out max.
Here’s my setup, Raspberry PI and RTL2832U, homebrew 1/4 wave groundplane mounted about 30’ above ground. 100’ RG8X coax run to hamshack. I do have lots of trees and live in a lower spot, however, still no idea why signal strength is so low.
I’ve tried adjusting gain…no better results
Shorter coax length…no better results
Any assistance would be much appreciated.