Garmin GT360UHD 360-Degree Transducer for Spy Pole

Garmin built the GT360UHD to hand you something most sonar setups can't: a full 360-degree picture of everything around your boat, not just what's directly below. Mount it on the Spy pole and you get OneVu sonar, a bird's-eye view of the bottom in both 2D and 3D, so you can find brush piles, ledges, and schools of fish without guessing where they went.

Here's what makes the OneVu imaging worth it. You can scan and store up to a football-field-sized area in a single power cycle. True Motion technology ties the scan to your GPS position, so as you idle across a flat the picture stays locked to real location instead of smearing. Find a piece of structure once, and you can keep fishing it without stopping to rescan every pass. For anglers working crappie brush or bass on offshore ledges, that's a real time-saver.

The transducer ships ready to work alongside LiveScope. There's a LiveScope adjustable perspective shaft mount right in the box, so you can layer live scanning sonar over the OneVu imagery and get an all-new 3D view of what's moving down there. In 2D mode you'll even see a beam overlay showing exactly where LiveScope is pointed. Run them together and you've got both the wide 360 map and the live close-up in one setup.

Everything runs through your compatible Garmin chartplotter. On-screen controls let you switch scanning modes, dial in sonar frequencies, and pick color palettes without leaving your fishing seat. You get three scan modes to match how you fish. Auto scan fires a fresh scan every time the boat moves to new water. Manual scan grabs data only where you tell it to. And constant scan keeps the picture updating as you go, which is the one most folks end up leaving it on.

On the numbers, the GT360UHD puts out 500 watts and works across 455 kHz, 800 kHz, and 1070 kHz, giving you room to trade off between range and fine detail depending on the water. Reach goes out to a 500-foot range, which covers just about any inland lake, reservoir, or nearshore situation you're likely to fish. It reads depth and water temperature too, so you're not bolting on a separate sensor for the basics.

Installation is straightforward if you take your time. The GT360UHD mounts to your Spy pole (sold separately) and the cables route down through the shaft for a clean rig. You've got 20.3 feet of cable to reach the helm, and the 12-pin connector plugs into your Garmin network. If you run in saltwater, do yourself a favor and put a little dielectric grease on the threaded junction before you tighten it down. It keeps corrosion out of the connection and saves you a headache down the road. Give the cable a gentle bend radius at the base too, since tight kinks right at the connector are the number-one thing that shortens a transducer's life.

Who's this for? Serious structure anglers, tournament crappie and bass folks, and anyone who's tired of running back and forth over a spot trying to keep it on the screen. If you already run Garmin electronics and you've been curious about 360 imaging, the GT360UHD is the piece that unlocks it. It's not a budget transducer, and it isn't meant to be. It's built for the angler who wants to see the whole neighborhood down there, not just the front porch.

One thing to be clear about up front: the Spy pole itself is sold separately, and you'll need a compatible Garmin chartplotter to run the GT360UHD. If you're not sure your unit supports OneVu sonar, give us a shout before you buy and we'll check the pairing for you. On the right boat, paired with the right head unit, this is about as complete a look at the water as you can get right now.