Kiwi Noise Floor
In trying to isolate and reduce noise I disconnected the antenna at the SMA connector on the Kiwi. The radio signals drop on the spectrum of course, but only to a certain point, visually flat from about 105 dBm at higher frequencies to a minimum of about 110dBm at about 4Mhz. I have seen other Kiwi's with lower readings on their spectrums (even with antenna connected), so it got me wondering if my slightly higher noise floor was power supply or network related or a calibration issue. I do have a pretty clean SMPS power supply (Meanwell brand) and Ethernet is connected via Apple Express. Both connecting cables are wound multiple times through large mix 31 toroids. I will try a DC power supply again this weekend but I'm curious for anyone's thoughts. P.S. Disconnecting the GPS cable from the Kiwi made no difference either.