Wayne P.

You need to read the entire specs on any unit you are considering to see if has the features you want. The two you listed are pretty much identical traditional GPS/2D sonar models with the Humminbird having about twice the power. Neither one has down scan, but both units are in a series that have a down scan model. The down imaging model from Humminbird is the 386ci DI and has GPS, 2D sonar, and down imaging The down scan model from Lowrande is the Elite 4-DSI and has GPS, and down scan.

I have several to check the thermocline, and actual bottom temp for the spawn. This is one of the models I use: http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=320444289423&item=320444289423

What body/s of water are shown as HD on the lake list and are not 1' contours?

I buy lures based on an anticipated pattern or a proven pattern that I establish. I could care less who likes or dislikes it or who the mfg is.

Have you updated the card so it has the same data that PC has.

Got it , thanks. Call Humminbird Tuesday, they are usually very busy on Mondays.

I get the same lock-up using Photobucket too when I try to do several things.

Question: What is the whole model name of that unit--every number, letter, and word? Where is the Snaphot selection in the unit menu?? I don't see it in the unit manual where that model has a Snapshot function.

Do this test first, purchase a cheaper SanDisk card of any size and speed to try. You can buy a SanDisk 4GB from Walmart or Radio Shack for about $10. If you have any other cards that you use with your camera try them. That will let you know if the card reader is defective (that can be the issue). Once you determine where the problem is, you can call Humminbird and let them know the tests you did.

Yes, you can use a SDHC card. The SanDisk brand functions the best in Humminbird units. It's hard to even find a card smaller than 4GB any more. The SanDisk Ultra SDHC Card (8 GB) card you have will do fine if it is not defective. It will work fine with the lesser size cards too. I have a 128mb that I use for software updates with the higher end models. The speed is not an issue, just the Class 10 writes the data faster if you want to take screenshots in quick succession. I have had issues with PNY and some camera brands. I have a Panasonic 8mb that came with one of my older cameras that works fine too.

Did you turn Screen Shapshot "ON" in the Setup menu????? Page 147 in the manual. Is the SD card formatted and unlocked??????

Sometimes my sonar units are transmitting on three frequencies. Most of the time I just use two frequencies. Do I turn them off when fishing?---NO, I use them to find fish as I am fishing and catching.

Another note for bow use: If you choose to use the unit on the bow with a trolling motor transducer, exchange the transducer for the one designed for that purpose. XTM 9 DI 25 T

You have no worries about networking with another unit, the 500 series units, including the one you have, is not linkable to another unit. To share a single transducer between two units, you would need two units that are Ethernet capable. That would be 700 series HD units or the current 800, 900, 1100 series units. Second best is two units in the 700 series that are linkable with INTERLINK which only allows sharing GPS data. If you have a thin fiberglass hull like most bassboats, you can use the DI transducer you have as a shoot-thru. Most that have a DI unit and not a fiberglass hull, mount that transducer at the hull bottom to give on-plane depth readings as well as DI images. It works well as a bow unit also with the transducer on the trolling motor.

Here is a hint: if the package states "The Original", it isn't.

No neither has GPS and/or mapping. The Elite-4 has GPS and is about $130 more The Mark-4 has GPS but is mono-chrome and is about $30 more The Eagle Fishmark 320 was discontinued several years ago. I think NAVICO has discontinued the whole line of Eagle products.

I disagree for those two units. Both have the same display resolution. While the 320 has a wider screen than the 4X, only the very first vertical row of screen pixels on the right side is current data, all to the left of it is HISTORY. The screen width makes no difference, it just determines how long something that is not within the sonar coverage stays on the screen before it scrolls off the left side. The 4X has a color display and a brighter backlighting; that is more desirable for a bow application in bright sunlight since the screen will be tilted up for viewing.

Motor Guide foot controlled motors have the momentary on button on the right side of the pedal like the OMC does. Minnkotas have that button on the left side of the pedal. That is one of the reasons I like Motor Guides. I had 4 of the OMC motors. one on a bass boat, one on a 10' jon boat, one on a 12' jon boat, and a spare. I used them from 1988 through 2009.

They are popular with the "GO-FAST" boat crowd because of their light weight.

If it has the 12" prop, it is 56# If it has the 8" prop it is 41#

Since you already have a HDS unit , another one would be the smart choice. You could network them. Additionally you are already familiar with the menu system. As far as the trolling motor transducers go, the convenience of an internal one is offset by poor performance according to reports on another web site.

I mostly use these Zoom colors with no favorite. One produces as well and any other at any time: Baby Bass, Mardi Gras, Green Pumpkin, Watermelon Purple, Watermelon Red, Watermelon, Watermelon Candy, Red Shad, Cotton Candy, Pumpkin, June Bug, Limeaid, Bubble Gum, Smokin Blue, Green Pumpkin Green, Green Pumpkin Red, Bait Fish, Moccasin Blue, White, Seedless Watermelon, Seedless Pumpkin, Junebug Red, Red Bug, Yellow, Lemon, Lemon Shad, Red/ Black Core, Natural Blue, Cherry Seed, Icicle, Green Pumpkin Blue, Watermelon/ Chart. Tail, Cinnamon Purple, Watermelon Magic, Green Pumpkin Magic, Margarita

That's great, you use one of the substances that destroys the anti-reflective coating.

Humminbird RECOMMENDS Windex Multi-surface with vinegar for their screens. You can use any snake oil and take the chance of screwing up the anti-reflective coating on them.

If you want to experience what shock strength is all about, use an umbrella rig on a baitcaster with any superline less than 65# test and get a backlash. I use 80# superline for that presentation--been-there-done-that.