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GPS Systems

G5-LD Iridium/GPS Tracker

Weighing 600-grams, this member of our G5-L family of GPS units boasts a 4 year lifespan. Utilizing the most capable satellite communication technology: Iridium.


  • A nominal monthly subscription fee, as well as a per-location fee, is invoiced to you on an monthly basis.
  • Typical life: 4 years @ 6 locations/day, data uplinked once every 2 days, VHF on 8 hours/day
  • 100% wireless operation provides greater reliability.
  • On-board Iridium transceiver provides 2-way communication capability for on-the-fly programming changes

Get your animal's data from anywhere you can access the internet.

The model G5-LD uses the Iridium satellite to transmit GPS location data collected by the tracker. An integrated VHF transmitter allows you to track the animal in the field.

Your tracker's GPS location data is uploaded to ATS' managed Iridium website (atsidaq.com) according to the schedule you choose. A Google Earth data file is included. Phone text alerts can be programmed for mortality and geo-fencing alerts.

The G5-LD tracker is programmed wirelessly using the Wildlink Comm. Module and Windows-based software running on your PC. You can control how often fixes are collected and stored, how often data is uploaded to the ATS Iridium website (up to six uploads per day, each holding 24 locations), and how often the VHF beacon will transmit (this allows you to maximize battery life).

You can also remotely command program changes to the fix rate and mortality schedule, fix duration time, and Iridium data transmission interval, using the website.


Typical Life

Variable, approximately 4 years; factors affecting life include number of GPS fixes and Iridium data transmissions per day, visibility of GPS and Iridium satellites, and VHF on-time per day.


GPS Location Data:

  • Number of fixes to collect per 24 hr period, 10 min. increments
  • Calendar days of the year on which to collect fixes

Remote Programmability (via ATS Iridium website)

  • SMS Text alert set-up
  • GPS fix rate, 12 intervals from 10 min. to 24 hrs.
  • Mortality hours, 4, 6, 8, 10, 12 hrs.
  • GPS fix duration time
  • Satellite transmission interval, 11 intervals from 4 hrs. to 7days
  • VHF duty cycle

Data Collected/Transmitted

  • Tracker electronics collects and transmits to Iridium satellite: Year, julian day, time, GPS fix status, fix location (if successful), activity level, temperature, and system statistics
  • ATS computer generates and uploads to website: a current data file, an accumulated data file (both .txt) and a Google Earth compatible file (.kml)
  • Datum: WGS84


Programming via wireless UHF radio-link using Wildlink Comm Module, PN 17621

Duplex satellite communication via Iridium modem


  • Weight: 600 grams (1.32 lbs.)
  • Size: 200 x 57 x 50 mm
  • Case Material: Molded plastic, waterproof/potted
  • Battery: 1 each "D" size

Ordering Information

Specify model and VHF frequency range. The Wildlink Comm Module, PN 17621, is required, available at nominal charge.


G5L Series GPS loggers are covered by a limited warranty for one year from time of shipment, or up to the calculated minimum battery life, whichever occurs first. Loggers may not refurbished.

Features and specifications subject to change without notice.


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