Category Archives: Lowrance Units

How to Convert Lowrance Waypoints to Humminbird Waypoints

Convert Lowrance to Humminbird waypoints. .usr to  .hwr

Humminbird PC

Step 1: Launch your free copy of Humminbird PC

HumminbirdPC 4/24/2015 , 2:58:50 PM HumminbirdPC 4.4.6

Step 2: Open the Lowrance file that you want to convert. The file will have an extension that ends in (.usr).
HumminbirdPC 4/24/2015 , 3:00:48 PM Open [SCM]actwin,93,78,691,511;

Step 3:  You will get a pop up message that lets you know that the Lowrance is not a .gpx file but asks if you want to convert it to one.
HumminbirdPC 4/24/2015 , 3:02:17 PM HumminbirdPC 4.4.6 [SCM]actwin,19,36,459,216;HumminbirdPC 4/24/2015 , 3:02:54 PM Import File [SCM]actwin,13,18,563,196;

Step 4: Once the file is converted to the gpx format you will see a file created that has both the usr and gpx file name as shown below with the name Bob.usr.gpx.

HumminbirdPC 4/24/2015 , 3:03:54 PM HumminbirdPC 4.4.6
Step 5: Now insert a blank formatted SD card into your pc’s SD slot and an icon will pop up in Humminbird PC.

Note if you have an Onix unit then you do not convert the files in Step 5 or Step 6 but just copy the file to the SD card with the file extension that ends with the (.gpx ).
HumminbirdPC 4/24/2015 , 3:10:32 PM HumminbirdPC 4.4.6

Step 6: Then next step is to select Add from the window that pops up.
HumminbirdPC 4/24/2015 , 3:11:41 PM Uploading GPX Files From PC [SCM]actwin,100,129,540,254;

Step 7: Once the file is written to the SD card you will get a Upload successful pop up window.
HumminbirdPC 4/24/2015 , 3:12:23 PM HumminbirdPC 4.4.6 [SCM]actwin,94,135,362,251;

Step 8: On the SD card a folder was created named (matrix ) that the Lowrance converted waypoints were written into.
Explorer 4/24/2015 , 3:13:26 PM BOB0004 (F:)
Step 9: If you open this folder the files will have the extensions that are (ht, hwr ).

Explorer 4/24/2015 , 3:14:08 PM matrix

Map Cards – Lake Master 3.0 versus Navionics

In this Blog I’ll try to show the difference in the Navionic’s Hot Maps Premium and Platinum map cards and the Lake Master 3.0 map card. First off I’ll tell you that I have had to personally buy all three of these cards and I do not get any cards from either company. Price points on the cards are pretty close with the Navionic’s Platinum running around $199.99, the Premium at $149.99 and the Lake Master cost at $129.99.

One thing you need to understand is that the Lake Master cards are designed to work only in the Humminbird unit and not in the Lowrance units. Garmin and Ray Marine use their own mapping programs.

Both cards come with the SD card micro chip holder with the micro chip included. So no matter which unit you have they will work in either the full size SD card or the micro chip slots. These screen shots are from my Humminbird Onix 10ci SI unit. Also please note that the cursor was very close to the same location as I could get them for these screen shots.

Looking at the first card the Navionic’s Hot Maps Premium you will see that there is a lot of vacant blue areas on the map. This means that no one has taken the time to record the lake bottom and upload it to Navionic’s for update downloads. You can record the lake data and create an account with Navionic’s and upload the data to them and a day or so later you can download the updates and then it will show the contour lines for the area you did the recording on. If you will notice on the Navionic’s maps there will be contour lines that all of a sudden just stop. These are where the user recorded the sonar log and uploaded only to that spot and no further.


The map card screen shot above is the Navionic’s Platinum card and the brown area in the photo above is the original creek channel in this part of the lake. The white area is a feeder or ditch that is located on the flat. The closer the lines are together the steeper and faster the depth changes. The circular areas indicate either a high spot on the lake floor or a deeper depression on the lake bottom. The small dotted lines represent an old field road that ran on the flats before the lake was impounded. You might notice that there is some 3D highlighting on some areas of the creek channel and high spots. This is one of the features with the Platinum cards.


In the above screen shot is from the Navionic’s Premium map card. You can tell by looking at the light tan colored portion which is the land around the lake that there is no Google Earth overlay data. This to me is useless data that was not necessary at least for what I use the cards for. The colors are a lot lighter on the Premium card versus the darker colors on the Platinum cards.

Now let’s look at the Lake Master 3.0 map card. As you can see from the screen shot below there is a lot more contour lines which represent more of the lake bottom detail with this map. Looking at the map below there is very little areas in these snap shots that does not have the contour lines.


 The above screen shot has the Shallow Water Highlight option set to 5 feet.Lakemaster30_2

So wrapping up this Blog I would have to say that the Lake Master 3.0 card has a lot more lake data than either of the Navionic’s map cards.

I hope this will help you decide which map card is best for your fishing use.

Lowrance – Part 2 – Sonar Logging

Okay now that we have our Sonar Logging recorded and placed in a folder on our home computer we need a way to view it. the program that I use is called Sonar Viewer. You can download the  at this link Sonar Viewer 2.1.2 . Once you download the program install it on your computer.

SonarViewer 3/2/2015 , 11:44:30 AM About SonarViewer [SCM]actwin,21,19,414,297;

SonarViewer 3/2/2015 , 11:45:37 AM SonarViewer

Now after we have installed the program and launched it we need to select the file or Sonar Logging we want to view. SonarViewer 3/2/2015 , 11:46:18 AM Open

Select File the go to the folder you created and select the file in this case the recording was named Sonar0000.sl2.



Now just hit the Arrow to start the recording. Notice that if you move your cursor over the item or object you will get the Depth, and GPS info along with other information.

Joy hope this helps you better use the tools we use for fishing.

Lowrance – Sonar Logging

I have found a useful feature that you too can use to improve your fishing while on the water and then do the lake recording study at home on your laptop or desktop computer. This feature is called Sonar Logging. I’ve discussed this feature on Humminbird units in the past and now I’ll show you how to do it on a Lowrance unit in the following step by step blog. Make sure you have a blank micro-sd card in the card slot.


Let’s record the screen recording as you are searching the lake with either your Down Image or Sonar views.

From the Sonar or Down Image screen press the Menu Button. LowranceRecord-3

Scroll down to the Log sonar option.LowranceRecord-4The next screen will be displayed, you can change the file name here if you desire to. Next just press the Start Logging option at the bottom to start the process. The recording will start and keep recording until you Stop the logging. I usually do about a ten to fifteen recording at a time then if I desire will start another session. Once you get home remove the SD card and place the file on your laptop or desktop to view. I usually create a folder with the lake name and the date and place the recording in this folder.

See Part 2 on how to view them on your home computer.

Lowrance – Data Overlay


In this blog I’ll go through the steps of adding or changing the Overlay Data that displays on your different screens. This blog covers the HDS Gen2 models only.


Data Overlay


First step is to select the Menu button and select Settings, then press ENTER.


First step is to select the Menu button and select Page, then press ENTER.


First step is to select the Menu button and select Page, then select Data Overlay press ENTER.


The Overlay Data is the information that is displayed in the small blue box in the photo above, in this case it is the Time. If you want to change to a different Data display select Change and press ENTER.

MenuEdit The Overlay Data is the information that is displayed in the small blue box in the photo above, in this case it is the Time.

Now scroll down to Sonar and press the + icon to open up the drop down menu below it.

MenuTimeOptionSelect the Time option and then press ENTER. Now exit out by pressing the Menu button and the Overlay Data should be displaying on your screen. You will need to do this for each of your screen views to display the data you want displayed on the screen.

Hope this was helpful…