
This is a review of the Amod GPS Photo Tracker.
The specs:
Antenna
- Receiver Frequency: 1575.42 MHz (L1 band) C/A code
- Antenna Type: Built-in Patch Antenna
GPS Receiver
- Technology: SiRF III
- Satellite Measure Used: 20 channels all in view tracking
- Operating Temperature: -20 degree to 50 degree C
- Operation Time: 15+ hrs with 3 x AAA batteries
- Data Port: Mini-USB
Time to First Fix (TTFF)
- Hot Start: 1 seconds typical
- Warm Start: 35 seconds typical
- Cold Start: 42 seconds typical
Memory
- 128 Mbytes (1 Gbit NAND flash memory)
- USB 2.0 full speed
LED
- Power On/Off: Amber
- GPS Fix: Green
- Memory Full: Red
Physical Characteristics
- Dimension: 90mm x 45mm x 23mm
- Weight: 50g
- Buttons: Power Button x 1, Push to Log Button x 1
In Use
When looking for a GPS logger I wanted one that didn’t require any firmware. I wanted a unit that would create a readable file, easily connect to a computer, and be understood by virtually any GPS phototagging software. Although the AGL3080 has a few quirks it seems to do the job and I am quite happy with it.
The instructions for the device are quite thorough and can be downloaded here from the AMOD site.
The tracking capabilities of the unit are quite good. I tested it both in a moving car (40-80km/h) as well as walking. Both traks were quite accurate. The car test track was even able to tell which side of the road I was driving on - impressive. While walking I also did a test and took a picture every few seconds. After geotagging the images, each was accuratly placed an appropriate distance from the last.
The time needed to lock onto the GPS satalite varried from under a minute to several minutes. I’ll admit that the unit was kept in a jacket pocket and there was significant cloud cover, but once the tracker had locked on it managed to keep an accurate course.
This unit takes 3 AAA batteries and lasts apparently for 15 hours. I haven’t used the unit for this long yet so I can’t say if that is correct but if so, it should provide ample usage for a day of shooting. However, i can’t help but wonder how the Garmin units manage to last over 20+ hours with only 2 AA batteries and include a LCD screen. Nonethless the minimal design of the AMOD unit is nice and makes for a no nonsense product that does what it is supposed to do and does it simply.
When first reading the instructions it looked overwelming changing the settings without an LCD display, but after playing with it for a few seconds it seemed very logical and simple to understand. The unit records tracks in 1, 5, or 10 second intervals and in GGA/GSA/RMC/VTG format (each type for every track) or only GSV format.

Using the most memory economical output format you could store 120 24hr days worth of tracks - which should be more than enough for anyone.
The directory and file coding system is simple and logical. Each time you start and stop the logger, a new file is created with the naming system being year month day hour minute second. This makes for a very understandable folder of files when you get many tracks. The files are stored as .txt files and may not be understood automatically by every GPS software. The file was not able to be read by Geotag, or Google Maps for example and would thus have to be put through GPSBabble to convert the file to an appropriate file type. Geosetter WAS able to read the files however, and proved to be a very capable software program and is what I have used to tag my photos.
For those interested in seeing what the text file looks like, here is a screenshot of a text file recording the 4 various file formats at 1 second intervals.

and a screenshot of a 1 second interval of the GSV format

Geosetter was able to read both files without a problem, so in the future I will use single GSV format and conserve disk space.
Design
The overall design and feel of the unit is good. It feels like it is made of robust plastic and the battery cover looks like it will last a while with no little parts breaking off. The unit is shipped with a canvas strap that loops around the ‘handle’ on the unit and attaches to itself with velcro. A plastic clip is attached to the strap. The plastic clip is of decent quality, but would be very simple to replace with a metal carabiner. The unit has only two buttons. On/Off and a waypoint button. The buttons are used by themselves (as you would assume) and in combination with eachother to adjust settings.
Conclusion
I am happy with this product. It works well, creates a simple file which Geosetter can read straight from the usb connection, and seems like it will last a long time. It currently sells for $70 on Amazon making it one of the more economical choices. Money well spent!
Camera Gear agl3080, amod, geotagging, gps
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