Garmin Ultra High Definition sounder

Garmin UHD transducer best in the creeks

Garmin introduced their new Garmin UHD transducer (ultra high definition) and black box this year… And I was lucky enough to be one of the test pilots.

As you may know if you’ve done our Sounder Skills 1 course, higher definition frequencies like 800 kHz provide good clarity of the underwater landscape. Now with the Garmin UHD transducer at 1120 kHz it’s even better. And the quality has stepped up considerably to the point where you can easily recognize species by their shape.

But as you step up in frequency you lose the ability to see as far. Because the sound waves produced by the transducer are smaller in intensity but touch a lot more objects.

Hence the extra clarity.

So it is important to remember that the higher the frequency the more it is suited to shallower situations like barra fishing inshore.

This will allow you to make an informed decision as to what unit you need for your own applications.

The main benefit for many Garmin users is that they can purchase the Garmin UHD transducer and black box and plug it straight in to your existing unit as long as it’s compatible. Compatible units are the echoMAP plus series and the gpsMAP series 752, 952, 1022, 1222 as well as the 74 and 84 series.

We have already seen some awesome side and down view images coming from these units and it’s not just fish but structure like wrecks and jetties.


Down image of Garmin wreck hull on Garmin UHD

Down image of wreck hull topside on Garmin UHD


Down image of bottom side of hull using Garmin UHD transducer

Down image of bottom side of hull using Garmin UHD transducer


Sand pinnacles using Garmin UHD transducer

Sand pinnacles using Garmin UHD transducer

One of our Barra Basics students has captured some great shots on a recent trip. He took a two mates and caught 3 barra over a metre, as you can see in the following pics. Great effort Clint, great to see you putting your mates onto such good fish and thanks for the pics!

barra in snags using Garmin UHD down view

Barra in snags using Garmin UHD

Big barra lurking on Garmin UHD

Big barra lurking on Garmin UHD

Metre plus barra number 1 - Clint Stoneham

Barra Basics student Clint Stoneham with metre plus barra number 1


Metre plus barra number 2 - Clint Stoneham

Metre plus barra number 2


Metre plus barra number 3 - Clint Stoneham

Putting your mates onto big barra is the ultimate thrill. Metre + number 3

One of the best advantages of this new Garmin UHD transducer and black box (when it's attached to a compatible unit) you have the ability to run both offshore and inshore frequencies. All from the one unit which is perfect for those that enjoy both inshore and offshore fishing.

POST SCRIPT. You won't need a black box anymore if you purchase a new unit. There are a range of models now that accept the new transducer. 95 SV UHD, EchoMap Ultra and 84 series can all run UHD without a black box. If you are in the market for a new unit, enter your details here and our Garmin dealer will contact you to determine the best unit and transducer for you.

Click here >> What transducer do I need - sounder inquiry form.


Few small barra holding outside a drain in Darwin Harbour on the Garmin UHD transducer

Few small barra holding outside a drain in Darwin Harbour

The benefits of having the compatible units is that the Garmin UHD transducer and black box only retails for around $899 dollars, so you don't have to go and buy an expensive new sounder to run the high frequency.

When we took the unit for a run last week we picked up a nice metre plus barra in about three casts in the Hinchinbrook channel. The video is below.



If interpreting your sounder is not your strong point and have trouble identifying fish, our $20 Sounder Skills 1 course will help!

Click the button below to get started - it's cheap as a takeaway lunch at the moment, only takes about 40 minutes to watch and also includes (as a free bonus) our sounder interpretation presentation.

Stop scratching your head and start catching fish in less time using my knowledge.

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About The Author

Ryan Moody

Ryan Moody started his fishing career on the reef boats before catching bucket list marlin for the likes of champion heavy tackle angler Johnno Johnson, INXS and the King of Sweden. Branching out in the late 80's to guided barramundi fishing, Ryan has made a name for himself as a Big Barramundi specialist and to date has put clients onto over 2000 metre plus barra. That is over 2 kilometres of metre plus barra! With attitudes changing from 'keep all you can' towards catch and release, Ryan has decided to share his extensive knowledge and hopefully inspire people of all ages to get out from behind the computer screen/TV and into the fishing outdoors lifestyle he has spent his life perfecting.

Facebook comments


  • Terry Van Zwieten

    Reply Reply April 11, 2019

    Hi Ryan,
    A great write up indeed.
    I do have 1 question, from your experience do you see this UHD Transducer truly being used in water up to 200FT as Garmin suggest? From what i can gather from your review that its better suited for shallower water, maybe less than 100Ft?
    PS: I have done your Sounder Skills 1 Course and highly recommend it to everyone. I learnt so much for just $20. A Bargain!
    Im saving up for your Sounder Skills 2 Course.

    • Ryan Moody

      Reply Reply April 27, 2019

      Hi Terry,
      Cheers for your comments about Sounder Skills 1. Gald you enjoyed it mate!
      I’m not sure where you got those stats from but high frequency side image will only see up to 40 mts in 10 mts of water. Never seen any high mega hertz frequency reach those distances.
      Hope that helps

  • Andrew

    Reply Reply September 12, 2018

    Good writeup, Ryan. Resolution high enough to identify individual species is pretty game changing. Too bad it’s not compatible with the STRIKER Plus series. Great reason to aspire to the higher entry point (as though we needed a reason).


  • Ryan Moody

    Reply Reply May 30, 2018

    Hi Paul, the $20 is a discounted price as we are running a special. You would have needed to put in a coupon code. I will send you an email and we can refund you the difference mate. A simple misunderstanding.

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