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.