In areas with no terrestrial internet options, a satellite internet connection may be useful. The Cobham Explorer 540 is a BGAN satellite terminal designed for machine-to-machine installations, such as with a DigiSnap Pro. It is designed to be powered by DC and has an ethernet connection which allows it to be interfaced with the DigiSnap Pro.
A custom ethernet and power cable can be ordered with your Cyclapse system to power the Explorer 540 with the DigiSnap Pro.
Follow the Explorer 540 user guide to setup and aim the satellite terminal. The best way to aim is by using a laptop computer to read the signal strength values while slowly panning the southern sky in both azimuth and elevation axes (if you are in the southern hemisphere, pan the northern sky).
Configure the terminal like the following to automatically establish an internet connection when powered:
Harbortronics can supply a custom power cable to allow the DigiSnap Pro to power the satellite terminal. To conserve power, configure the DigiSnap Pro to only supply power to the satellite terminal when the network hardware is active:
Optionally, you may want to limit the number or size of transferred images, preserving the full resolution images on the camera or local USB drive.
Use the decimate feature to only upload one image for every 5, 10, 25, 50, 100, 250, or 500 taken.
To resize images before upload, use the Transfer Size feature.
|Image Size Setting||Dimensions||Typical File Sizes|
|Full size||original image from camera||700 KB - 30 MB
depends on camera and camera settings
|Large Thumbnail||larger dimension limited to 1920 pixels||136 KB - 786 KB|
|Medium Thumbnail||larger dimension limited to 1080 pixels||48 KB - 86 KB|
|Small Thumbnail||larger dimension limited to 160 pixels||7 KB - 64 KB|
Image file sizes will vary based on camera model, camera settings, DigiSnap Pro image size setting, and photo subject. To be sure you will be within your data quota, take one day of test shots on site, sum the file sizes on your FTP server for that day, and multiply that by 35 to estimate your required monthly data quota.