Over the last week or two I noticed that signals on the KiwiSDRs occasionally dropped 10-20 dB or more and then would go back up to normal full strength. I dropped the antenna today and noticed that one of the wing nuts on the balun that connected one of leg of the dipole to it was loose. (We've had several days of strong winds over the last couple of weeks.)
Been listening to it for about an hour now and the issue seems to be resolved. Enjoy listening!