Garmin Astro 320




Premier Tracking System for Sporting Dogs

  • Track up to 10 dogs at a time, up to 9 miles. T 5 and 4 miles (T 5 mini) away
  • T 5 or T 5 mini dog devices. With top-mounted high-sensitivity GPS/GLONASS transmitter with flexible braided steel antenna
  • Compatible with TT™ 15 and TT 15 mini dog devices and collars (for tracking only)
  • Advanced mapping with optional BirdsEye Satellite Imagery and TOPO maps

The Garmin Astro 320 handheld takes dog tracking to a higher level. It allows you to keep track of up to 10 dogs. With multiple handsets and T 5 or T 5 mini dog devices. High-sensitivity Garmin GPS/GLONASS transmitter. Enhanced map drawing capabilities, BirdsEye Satellite Imagery. Compatibility, and a 3-axis electronic compass. Ensures you get to your truck or camp at the end of the hunt. And it’s all easy to get to through a vibrant, sunlight-readable 2.6-inch color display.

See Your Dogs’ Every Move

The Garmin Astro 320 handheld and T 5 (or T 5 mini) dog device boasts high sensitivity. GPS receiver/transmitters. Both the T 5 and T 5 mini have a top-mounted GPS antenna. And are designed to keep their flexible, braided stainless steel radio antenna upright. For best reception, so you can track your dog’s position even in heavy tree cover or deep canyons. And it’s tough enough to run wherever your dog runs (water-rated to 10 meters).

You can track up to 10 dogs at one time with Garmin Astro. At a range of up to 9 miles (T 5) or 4 miles (T 5 mini) away, depending on terrain.

You can track up to 10 dogs at one time with Astro. At a range of up to 9 mi (T 5) or 4 miles (T 5 mini) away, depending on terrain. The system transmits information by line-of-sight. So it reaches farthest in flat, open territory.

As often as every 5 seconds, the T 5 and T 5 mini dog devices transmit your dog’s position to your Astro 320 handheld. Through the vibrant display, you can see your dog’s current location and a trail of where he’s been on the map page. Switch over to the Dog Track page to view a compass pointing to your dog’s location.

When tracking multiple dogs with T 5 and T 5 mini dog devices. You can also see each dog’s precise distance on the map page. And you can choose to auto zoom the map so all dogs can be seen on the display. Dogs that are too far away to fit on the map’s current zoom scale. Can be notated on the display’s margin in the direction of the dog’s location. You can also choose the duration that each dog’s tracklog is viewed on the display. Or toggle it off completely.

Special Features for Your Peace of Mind

Rescue mode provides a reduced update rate when battery life drops below 25 percent. In order to preserve battery life and give you more time to look for a lost dog. The improved battery life means when you set your update rate, making the battery last anywhere. From 16 hours to 40 hours. In rescue mode, the battery lasts 24 to 44 hours. Depending on the dog device used. Plus, Collar Lock creates a 4-digit PIN number. That helps prevent others from seeing your dog’s whereabouts. A useful feature in field trials is to ensure an Astro is used only as a search tool. When a dog in competition becomes lost.

Rescue mode provides a reduced update rate. When battery life drops below 25 percent. In order to give you more time to look for a lost dog.

Upgrade with Ease

Getting what you need for the hunt is now a little easier. You can purchase the entire Astro bundle. And as many T 5 and T 5 mini dog devices. With collars as you need. And your Astro 320 is compatible with every T 5 and T 5 mini dog device.

Additional Mapping

Astro 320 has a microSD™ card slot so you can load TOPO U.S. 24K maps. For land elevation contours or City Navigator NT®. Map data for turn-by-turn routing on roads. Astro 320 also supports BirdsEye Satellite Imagery. So you can download satellite images to your device. And integrate them with your maps. Mapping depicts important nearby geographical features. And lets you know if your dog has crossed a creek or is nearing a dangerous road.

Garmin Astro 320 is also compatible with Garmin Custom Maps. Free software that transforms paper and electronic maps. Into downloadable maps for your device.

Count Your Coveys

After you’ve captured your quarry, mark the exact spot with Astro’s Covey Counter™, a special waypoint that tells you the exact location, time of day, and elevation where you found your prey, as well as the number of birds you flushed and took from that location. Astro lets you save other special waypoints, such as “Truck” and “Lodge,” so you can save the location of these places quickly and easily for each hunt. Astro also offers special waypoint icons to represent food plots, tree stands, and other hunting-related points.

Plan Your Next Trip

Take charge of your next adventure with BaseCamp™, software that lets you view and organize maps, waypoints, routes, and tracks. This free trip-planning software even allows you to create Garmin Adventures that you can share with friends, family, or fellow explorers. BaseCamp displays topographic map data in 2-D or 3-D on your computer screen, including contour lines and elevation profiles. It also can transfer an unlimited amount of satellite images to your device when paired with a BirdsEye Satellite Imagery subscription.

Share Wirelessly

Wirelessly connecting to a variety of compatible Garmin devices, including VIRB™ action cameras and ANT+® sensors (including heart rate monitor and bike cadence), the Astro 320 can link with your buddy’s Oregon®, Montana®, GPSMAP® 64 or other ANT+ enabled devices.

Turn Your Computer Into a BaseStation for Tracking Dogs

Load your laptop with BaseStation software to turn it into a field control center for tracking multiple dogs (T 5 and T 5 mini dog devices). View real-time GPS information on the larger display of your computer, making it ideal for canine search and rescue teams. And because it’s GPS/GLONASS, you’ll get safe, secure, and more effective tracking, even where Internet and cell phone service isn’t available.

¹The DC 50 is compatible with the Astro 320 handheld only (software upgrade required). It does not work with Astro 220 or Alpha® handhelds.

Due to varying international regulations, this version of the Astro is approved for use only in the United States. The sale and unlicensed use of the Garmin Astro dog-tracking system in any form is currently prohibited by the Canadian government.

In June 2009, Industry Canada announced that the MURS radio frequency used by the Astro would be allowed in Canada following a 5-year transition period. However, in June 2014, Industry Canada reversed its position, noting “the Department does not feel that the introduction of MURS devices in Canada is warranted at this time, and has decided to defer the introduction of MURS devices in Canada until a clearer indication of actual need is provided by Canadian MURS advocates and/or stakeholders.”

Garmin remains interested in offering the Astro to our Canadian customers and will be contacting Industry Canada in support of that goal. Potential Canadian customers should also contact their local Industry Canada office to express their desire to have the product approved for use in the country.


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