I just received some of these units and am trying to configure them. For some reason, my computer won't recognize the AudioMoth unit (SD is formatted as directed in guidelines). All the help I've seen on this issue relates to Linux. My PC is 64bit and I'm running Office 365 ProPlus. Can someone tell me how to get this working so I don't waste another several hours?
1) Does the AM have a resonance, or excess gain at 20kHz? I tried a dozen indoor/outdoor settings, and there is always a band at 20kHz. The spectrum below is inside a quiet room. 2) In most of the indoor, quiet room, recordings, I see a rising thin line in the 30-50kHz range, see the above spectrum, the five panels cover about 20 minutes. Could this be a form of self-noise? 3) The clicking noise, I saw on other posts that this is SD card writing? I only see this occasionally. The image below was from inside a parked car at night - very quiet. Is the suggestion still to get the "Extreme" version of the SD card? Thanks - I love the unit. Keep up the good work - you are making a lot of research possible.