Thread: test compilation

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Iphone usability thread

http://www.crappie.com/crappie/testi...ity-forum.html

The 587c HD DI units were a Black Friday unit as were a few other DI models. Seems that they were quite popular and are still available at some retailers. I do not know if they will be added to the regular line-up for next year or not. If they are they will get added to the Humminbird web site. These should have the same sonar specs as the other DI units: 788ci HD DI, 597c HD DI, 581i DI, 570 DI, 385ci DI and 345c DI.

The default mode for the unit when it has only a power cable connected to it is to go into the "point of sale Simulator mode"...This is so that when no buttons are pressed after two minutes or when the unit is powered down that the unit will rest the menus to certain predefined settings to show the product off to John Q. Public.

The ‘forced’ Simulator mode...found by pressing the MENU button during the splash screen, is for practice using the unit and making changes to the Nav Data, viewing mapping information and making menu settings changes and having all of this remembered or retained by the unit when the unit is powered off.

Pixel densities...

The different size screens have different pixel densities.
The 798 has 31,170.5 pixels per square inch.
The 898 has 17,533.4 pixels per square inch
The 998 has 12,755.7 pixels per square inch
The 1198 has 8,858.2 pixels per square inch

In the world of sonar displays, the 798 is HD.

Originally Posted by rnvinc

Pixel densities...

The different size screens have different pixel densities.
The 798 has 31,170.5 pixels per square inch.
The 898 has 17,533.4 pixels per square inch
The 998 has 12,755.7 pixels per square inch
The 1198 has 8,858.2 pixels per square inch

In the world of sonar displays, the 798 is HD.

Test

Snapshots and recordings are saved directly to a SD card that is inserted into the unit….

-Remove the SD card from the unit and insert it into your pc card reader…a window should open showing files on the SD card…
-Create a new folder on your pc's desktop named “HB”….
-Transfer the files from the SD card to the “HB” folder…
-Click on any of the files that have a “.png” extension and your pc’s picture viewer program should open it to view the “.png” snapshot….

The recordings can be viewed in a third party software called Humviewer….

-Download Humviewer here…HumViewer - Viewer of Humminbird sonar recording files
-When it asks if you want to “run” or “save”…click “save”….
-When it asks where you want to save…navigate for it to download to the new “HB” folder…
-Open the Humviewer program that has now been installed…(I think version 67 is the latest)…

When Humviewer opens….

-Click “Open” in the top left of the screen….
-Navigate to the “HB” folder until you find the files that you transferred from the SD card….
-Click on any file with a “.DAT” extension (or “.dat”…I don’t remember)…
-The recording file should load into Humviewer…(sometimes this takes a few minutes depending on how long a recording you made)….

Lots more info on Humviewer here… HumViewer

If you need more help …ask here or pm me….

Why fish arch....(Lowrance.com sonar tutorial)

The reason fish show as an arch is because of the relationship between the fish and the cone angle of the transducer as the boat passes over the fish. As the leading edge of the cone strikes the fish, a display pixel is turned on. As the boat passes over the fish, the distance to the fish decreases. This turns each pixel on at a shallower depth on the display. When the center of the cone is directly over the fish, the first half of the arch is formed. This is also the shortest distance to the fish. Since the fish is closer to the boat, the signal is stronger and the arch is thicker. As the boat moves away from the fish, the distance increases and the pixels appear at progressively deeper depths until the cone passes the fish.

If the fish doesn't pass directly through the center of the cone, the arch won't be as well defined. Since the fish isn't in the cone very long, there aren't as many echoes to display, and the ones that do show are weaker. This is one of the reasons it's difficult to show fish arches in shallow water. The cone angle is too narrow for the signal to arch.

Remember, there must be movement between the boat and the fish to develop an arch.

IMG]http://i477.photobucket.com/albums/rr134/rnvinc/colrmako.gif[/IMG]

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