Now that the filter setup appears stable, it’s time for another assay of the spectrum around the QTH with the discone.

001 – 100 MHz (old):

001 – 100 MHz (new):

Pretty big difference! And just to check the ICOM demodulator, here’s the same spectrum using the AM demodulator.

100 – 200 MHz (old):

100 – 200 MHz (new):

Low noise floor, more better! Still some strong interference, but livable.

200 – 300 MHz (old):

200 – 300 MHz (new):

So much better.

With most of the big interferers suppressed significantly, tomorrow I will put one of the LNAs in a case and get it up on the roof as part of the lineup.