I have received two Audiomoths from round 3. Lovely designs and simple configuration. However, after some tests, I am annoyed by two common issues in the recordings. 1. I have quite plenty of destroyed signals of bat calls even with intermediate amplitude levels (usually <30%, low frequency noises included); 2. have gaps in some recordings, usually happened when recordings are destroyed a lot by the low frequency noises (at this case, the amplitude level are primary 70-100%). However, it also happened occasionally with low amplitude levels. I attached screenshots of the example here. [configuration: intermediate gain, 192 or 384k sampling rate, duty cycle: 3s on/12s off or 60s on/300s off, led light on/off] [detector setting-up: either in zip bag or not, height of detector 1-1.5m, weather generally humid, in some cases raining but the bag remind dry inside, temperature 80-90 F] . Many thanks first!