Hello, I have a Kenwood TK-8180 K (450-520 MHz) and I am using KPG-89D software to program it. I am able to program this radio for use in the 70cm amateur band; the software gives a "Frequency out of range" warning when entering transmit or receive frequencies below 450 MHz, but the file is able to be saved and written to the radio. One channel I have programmed is for a repeater operating on 441.625 MHz (with an input of 446.625 MHz). TX/RX work as intended, however, switching to this channel sometimes results in an intermittent "beep beep beep beep" heard via the speaker. I assume this is a warning that the radio has been programmed incorrectly, but powering off the radio and on again will eliminate the beep and channel operation resumes. This only seems to happens once every 3 or 4 days, and doesn't seem to happen consistently. Has anyone experienced this before? I realize I am programming the radio out of band to frequencies on which it is not intended to operate and I am leveraging an unsupported or undocumented feature, but I'm just curious as to why sometimes the channel works and sometimes it gives the warning beep.