Garmin’s GCV 10 DownVü/SideVü, a serious new weapon in the sonar war

20 Responses

  1. Dan Corcoran (b393capt) says:

    Well done Bill.
    Thanks for sharing!

  2. Bill Bishop says:

    Thanks Dan, it was both fun to write and impressive gear.

  3. Larry Brandt says:

    Kudos for an interesting product, but the opposite of kudos for Garmin marketing department’s idiotic and gratuitous use of umlauts. My Munich-born wife says this kind of silly marketing trick is S-T-U-P-I-D.
    Nevertheless, thanks for the fine write-up.

  4. Geoff says:

    Wonder how well this would work if you flipped it. Could it be use for forward looking sonar? Would be helpful in our gunkholing with the big boat…..

  5. Ben Ellison Ben Ellison says:

    Sorry, Geoff, that won’t work. What’s not obvious in the screenshots is that the imagery is not produced all at once but rather line by line as the boat moves along. If you turn the transducer 90 degrees you’ll just see a big smudge as essentially the same narrow beam image is copied over and over. Forward Looking Sonar is a very different challenge, recent detail on it here:

  6. Pat McQueen says:

    Great article. The price performance of transducers has always mystified me. Clearly in this case you get what you pay for. Glad to see Bill posting. His blog was strangely quiet and had me concerned!

  7. Blake Whitney says:

    Thanks, Bill. I’ll stay tuned to “Sonar Wars.” Nicely done article. Bill may have been quiet (see post above) because he’s installing new stuff on my boat…or he’s supposed to be:-) Blake Whitney

  8. SheltieJim says:

    “(Is there a better name for these impossibly small chips?)”
    Micro-SD chips are about the size of my pinky’s fingernail. I know of none smaller (in their usable form).

  9. Semperfifishing says:

    Thank you for taking the time to put this together….and if you are thru with the see thru transducer it would sure look good on my desk!
    I have had some interest from some of my people if you have any screen shots taken at speeds above 20 kts or so.?

  10. Anonymous says:

    Gil, I have a couple at around 20kts. The next time out I will make a point of getting a bunch of them. I’ll send what I have

  11. Mike says:

    Great article!
    Did you have any problems with interference from the outboard? How did you avoid this?

  12. Ben Ellison Ben Ellison says:

    The arms war continues! Garmin just announced a DownVü/SideVü thru-hull transducer to be shipped 3rd quarter:
    You can also fit a pair if deadrise or something creates a blockage for just one:

  13. Josteen says:

    Did you use the transducer that came with the 741xs also or did you only use the one that came with the GCV 10? I have purchased the 1040xs with the GCV 10 and everyone keeps giving me different answers. Yes I have to use both and no I just use the one that came with the GCV 10. Can you please help as it is confusing me? LOL

  14. Bill Bishop says:

    Josteen, in order to use the DownVu/SideVU transducers they must be connected to a GCV 10 black box. The XS series systems have a built in CHIRP/Standard sounder module for the other transducer types.

  15. Jacques says:

    Hi Bill,I want to buy a GCV 10 Black Box Sonar and my question is: I already have an intelliducer 13-24D Garmin (Garmin part 010-00701-01),may I use this thru hull installation for connecting the black box or I have to install the transom-mounted transducer ? The Gps is a Garmin GPSMAP 741 XS
    Thanks Bill for your answer,

  16. Ben Ellison Ben Ellison says:

    I can help, Jacques, but sorry the answer is no. The Intelliducer only delivers depth and temp info and it uses a boat’s NMEA 2000 network, which doesn’t have the capacity for sonar imagery.
    You definitely need the DownVu/SideVu transducer, either transom mount or thru-hull, to get anything out of the GCV10. The transducer cables to the GCV10, which also needs power, and then a Garmin Ethernet cable will go to your 741xs.
    Next year Garmin will have several MFDs with all the processing ability of the GCV10 built in:

  17. Troy says:

    The hull you mounted that Sideview transducer looks like a power cat.
    I had some questions:
    1.) Did you see any performance issues mounted on the back of the cat? I see a lot on the internet saying that transom mounts on Cats are a big issue.
    2.) what type of Boat?
    3.) did you 2 Transom Mounts one for each Sponson?
    4.) was there any other transducer like a Tru hull or In Hull hooked up for below the boat?

  18. Steve Bahr says:

    Thank you Bill Bishop for this informative article. Just to be clear, the GCV 10 Module and associated transponder gives you the DownVu/SideVu with CHIRP.
    I assume you still need the 8 pin 50/200kHz transducer for the traditional sonar display.
    On the Garmin 741xs, does the CHIRP capability apply to the traditional sonar display (ie – clean it up)?

  19. leonardo gino jr says:

    I have Aquamaps 100xs I like to upgrade it to have downVu/SideVu please give me advice how to maximize the capability of my units. Do I need to buy GCV 10? what transducer do I need to buy? what model? as far as the Aquamaps 100Xs is capable of 1000W power what transducer you recommend for this thanks in advance

Join the conversation

Your email address will not be published.