Wayne P.

Good deal. BIGGER is better. The Helix 10 has about the same screen resolution as the ONIX 10.

There are many, just choose the sonar technology you want in your search. There are several websites just about Humminbird Side Imaging if that is what you want to learn.

I have blank-through-handle pistol grip rods and offset pistol grip rods. The original offset ones (Lews and BPS copies) are more comfortable to handle with a better wrist position. I use them for Chatterbaits and spinnerbaits.

The 400 Verado would be a better choice. The Seven Marine 627 HP would be even better.

A shoot-thru, transom mounted, and trolling motor puck have the exact same 2D frequency crystal so they work exactly the same. Just mounting style is different. Hitting the bottom or objects breaks the transducer. The Transducer Shield and Saver will pretty much prevent that since it is metal and encloses the transducer. There is a model that fits a transom transducer and a trolling motor puck. Bass Pro has them in their catalog and marine electronics dealers carry them.

Read the third paragraph in my post above again.

Which one of the four Helix 9 models did you get?

The 9 and 10 are quite new and not many installed yet. They have an additional memory card reader and are linkable to other Ethernet capable units to share data and accessories. IF you got the SI version and want sharper Imaging, you should exchange the included Compact SI transducer for the HDSI transducer. The unit has the additional 800 kHz Imaging capability. It has the same sonar technologies that Humminbird has had for over 10 years. The Helix 9 series replaces the 800 series and has a larger display.

I think in some cases the ones doing the edits do not know their notes are being shared.

The Mobile App has seven Community Edits around the lake. One is titled "Camp Blanding Ramp".

The Web App has the exact same maps as the Mobile App for Nautical Charts and Sonar Charts. It is up-to-date as of the day Navionics closed for Christmas. To check Lakemaster coverage, download the .pdf lakelist from the Humminbird Lakemaster website. THIS is the Sonar Charts map on the Web App that anyone in the world can view if they will just look. You change the map views by clicking on the circle at the lower left of the panel.

Pay attention !!!!!!!!!!!! The Web App has the CURRENT maps for both the Navionics maps (Nautical Charts) and Sonar Charts (user generated maps). If you have the Mobile App and have updated it recently, it would have the exact same data as the Web App. If detail you want is not there, it won't be there no matter where or when you look or if someone in China looks at those locations. Your examples are maps purchased from "other sources" and are NOT Navionics created maps. Navionics adds about 2000 edits per day "somewhere" around the world. The lakes you are interested in are not the same as the ones I fish and navigate on. Every single location is different. The Navionics published map for this location was a scanned paper map. There was no other map and Navionics would probably never survey there. I and maybe some others uploaded sonar logs to get a better map in HD with the Sonar Charts program. This is the original scanned paper map that shows an island that is not an island, it is a submerged hump: This is the result of those sonar logs: In that example, Navionics had no part in collecting the data to create the HD contours. They processed the sonar logs that were uploaded to their map server as a FREE service. That HD map is NOT Navionics data and you cannot purchase it. It is FREE.

That map I did is on the Web App and Mobile App and my map cards. I check the Web App to verify that my data has been processed before I do an update. You know where those locations are, you can look at the Web App to see what is current. The Web App looks the same to anyone that views it. If no one has supplied any data for your locations, it is what it is. You can fix it yourself if you care to.

Additional info about Sonar Charts to show why you need to verify with your sonar if any mapping is accurate. This is the same lake as above. This location indicated by the map curser has a 30'+ depth error that was interpolated from nearby sonar logs: After the map was generated, I saw what needed to be corrected and did this sonar log track: This was the fix as the result of the sonar log track. Note the waypoint coordinates at the top left of both map examples:

When using the Sonar Charts map layer, you need to verify if the contours are user generated or pre-Sonar Chart data with your sonar. Just like any other map product, only the bottom contours will be accurate where depth and location data was collected. Most all bodies of water got preliminary contour lines when that program started. Those lines were created to be adjusted by uploaded sonar logs. If you did not supply that data and know what areas are accurate, you should not assume any part of those maps are accurate. This is a composite of sonar log tracks that was used to create the Sonar Chart map I posted above. ONLY what is exactly under those red lines is accurate. All other parts of any of the contour lines are interpolated (fake). Only when that lake is solid red from sonar log tracks will the entire lake map be accurate.

No unless you purchase a software that can read a map card. Navionics used to have a software that would ---NavPlanner II Garmin has one for their map products. Lowrance may have one that works with their Insite maps. Waypoints are GPS data and mapping is not GPS data. You can have waypoints without any map product. I had about 75 waypoints for this lake and there was no contour mapping for it at the time: I later surveyed it myself to collect the data to have a HD contour map for it using Navionics Sonar Charts. It looked like this after many hours of collecting data: There are incorrect contours at all the places I did not pass directly over. I fix those errors as I take the time to do more data collection if a particular location would be better represented by more accurate data.

Additional comment. Every digital mapping product has locations that are done by their own survey team, and they have maps that they purchase from other sources to have more content in their mapping products. ONLY the locations that they do themselves will be the most accurate. Locations on the map products that are their surveys are typically identified as HD. Additionally no mapping company collects data for every square foot of terrain. Contour lines between surveyed data points are filled in (interpolated) either using software or manually. It is up to the user of those map products to confirm the accuracy of the data with their sonar.

You have to use some common sense when using mapping. Maps are created at a certain water level, when the water level is not at that point, the depths cannot be the same. The Navionics Mobile App, their website's Web App, and their map cards have the exact same maps if updated the same day. The Navionics Mobile App has a water level offset setting, use it to adjust the lake level to the current conditions. Most sonar/GPS units do not have that adjustment using Navionics or another digital map product, again use common sense. If you have a Humminbird unit and your water of interest is covered by Lakemaster mapping in HD, then you would have the lake level offset choice with that product.

You can view the current actual maps that Navionics has on their website's Web App.

Samsung Galaxy Tab2 iPad Mini iPad Acer A100 No issues with any of them. I use a laptop or desktop most the time for forums since they have larger keyboards.

It is quite basic. The transducer has to have water contact either directly or shooting through the hull.. You need a 12V power source. The transducer can be attached to the bottom of a trolling motor, quite a common application. There is a Humminbird accessory trolling motor mount bracket, and a third party mount by Transducer Shield and Saver. Or you can exchange the transom transducer for the trolling motor PUCK version-- XTM 9 20 T I would recommend the Transducer Shield for protection, you will break the transducer at some point without one. That is highly likely with a canoe application.

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Units with Side Imaging have that plus Down Imaging and 2D sonar. All my units are Side Imaging, I do not use Down Imaging. I use Side Imaging most of the time and add 2D occasionally.

Instead of putting the tag end through the loop once to make a half hitch and then stacking half hitches, go through the loop two or three times so it binds itself better.

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