I just noticed last night that my V1 3.826 is not always alerting at max sound level. I have the knob all the way up and the mute ring about halfway up. Just FYI, the low sound level is on first alert, and it seems to be on the K band. Has anyone else ever experienced this? Is this something I should send it back for? If I do send it in for service, will they automatically upgrade to the newest version, whatever that may be? Please let me know. Thanks!