I’ve had a LimeSDR-Mini for a few weeks now, but paired with the Ham-it-UP up-converter, the entire HF portion of the spectrum seems to be plagued with these sharp lines that often interfere with other signals I try to receive. Also, without the up-converter connected, I can observe these same exact lines in the 130-145 Mhz region of the spectrum. Currently for receiving I have a 50ft run of RG6 run up to my attic, where I have a 1:1 balun along with a simple dipole that I constructed which runs the length of my attic.
