With OUTERNET’s move to Ku band, I have been spending more time experimenting with other L-band services such as JAERO and SafetyNET. Have fairly good luck with both. I am curently using an SDRPlay RSP1a but at L-band requencies, definitely need the additional amplification that the Outernet LNA/Sawfilet module provides.
Would like to try adding a second LNA module in series but am frankly not sure how to connect both so I can power through the bias-T. Or maybe not possible?
May not improve things (or may actually lower the S/N) but would like to experiment anyway.
i don’t think that a second LNA would improive thing in this case.
If you wan’t to test it anyway, just search for the 5v rail and add a cable (if you found a pad) from the first (near to the bias-t) to the second one.
Good leads. Wish I I could locate a schematic for the LNA/SawFilter module to be absolutely certain of the 5V source. I had seen some of Adam’s videos, but not that one - great source of info.