cu.usbserialthis allowed to run chirp under OS X to program the rig...i also fired up my Macbook Air under PIXEL Debian GNU/Linux, plugged in the included cable, ran chirp, copy and pasted my local repeater freqs in and was again done programming the rig in 3 minutes (nice to include NOAA WX and VHF CH09 for listening to the bridge tenders)measured 24W and 11W on high and low power on 147MHz using a dummy load and an analog watt metergood sound, mic input buttons work for entering freqs, including FM broadcast freqsgood sound from the the speakeri have found, to avoid the task of having to go through entering specific info via the menu for ABCD channels, is to leave those channels empty in chirp, start the memory channel list on channel 4, then select memory mode and dial in each desired channel into ABCD...
