This isn't clear in the manual, under what circumstances should the SG-4 beep? While guiding or calibrating, mine seems to beep all the time. Is there a way to turn off the beeping, or turn down the beeping volume? I'd rather not bother the neighbors at midnight. Well, most of them, anyway.
https://diffractionlimited.com/wp-content/uploads/2016/05/operating_manual_for_sg-4_autoguider.pdf According to the manual it beeps when it loses the star. "If the star is lost due to clouds the SG-4 will start beeping, but the star has to fade a lot, by 10X or so, before it will be lost. "