The only shortcoming is that the software does not write the GPS data to RAW files so I have to manually enter the GPS data into my RAW files from the JPEG photos. The EZ-tour software can export a KMZ file. I friend of mine uses Greenwich time all the time on his camera. I no longer bother with daylight saving time and use standard time year round. The camera time drifts by up to a minute a month. For simplicity I always adjust my camera clock every two weeks or so to the second using world time on the computer. The software allows the input of a time zone and time difference from UTM satellite time (the RCV-3000 gets UTM time from the satellites) and the camera.

Once the data is uploaded to the EZ-tour software you can add JPEG images from a file or folder and it will write the GPS data to the photos. I had to find the COM port for the USB through trial and error.

I have not been able to connect via bluetooth and the software manual is not very helpful on bluetooth and the USB connection. I connect the data logger to my computer via the USB port and download the track data. It comes with Holux EZ-tour software for reading the logs. It charges via a USB connection so a battery pack would probably allow for two weeks of daily use. Battery is rated to last 20 hours and I’ve never had a problem. The three lights are for bluetooh, satellite lock and low battery warning. There is only an on and off switch and three lights. It is a very small unit the size of a small box of matches. So last year I purchased a geo data logger Holux RCV-3000 for less than $100 and it’s been great. But it was cumbersome to get the geo data on to my photos, really drew down the battery on the phone so that 4 hours recording was the practical maximum and the last straw was that Google stopped supporting it. It did a good job of tracking my path with an overlay on Google Earth. I used to use a free google app called myTracks on my phone to track my location.

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