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Using Navi GT-11 gps inside Aquapack
Navi GT-11 is a nice GPS unit that has many useful features,
such as good accuracy and the ability to log the track data to
removable SD card every second for a long time (days) - just to
mention a few.
However, using GT-11 inside Aquapack (a waterproof vinyl enclosure)
is very difficult.
The GT-11 joystick sticks out and is easily pressed down by accidental
contact. I hesitated using my Navi GT-11 during sailing, because
every time I looked at the screen it displayed not what I expected,
after the joystick has been pushed an unknown number of times.
Navigating through the menus is almost impossible in Aquapack,
because it is far easier to push the joystick in than slide it
across.
Since my attitude is never to stop thinking how to make the most
of the limited resources that I have available - I developed a
"high-tech" solution to make using Navi GT-11 in Aquapack
really easy.
The solution is to use a well-dimensioned nylon washer around
the joystick, as illustrated in the photo below.
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The washer
height is approximately equal to the height of the joystick.
The washer serves two purposes when GT-11 is put inside the Aquapack:
1. Allows separation of push and slide motion of the joystick.
Navigating through Navi menus becomes as easy as without Aquapack,
even when using gloves as shown in the photo below.
2. Minimizes the possibility of accidental push of the joystick,
due to accidental contact or tensioning of the Aquapack vinyl
due to limb muscle tension.

I voluneer to provide nylon washers free of charge for those who
can follow links on this page and find my contact.
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