Using Navi GT11/GT31 gps inside Aquapack
Navi GT11/GT31 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 GT11/GT31 inside Aquapack (a waterproof vinyl enclosure)
is very difficult.
The GT11/GT31 joystick sticks out and is easily pressed down by
accidental contact. I hesitated using my Navi GT11/GT31 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
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 GT11/GT311 in
Aquapack really easy.
The solution is to use a well-dimensioned nylon washer around
the joystick, as illustrated in the photo below.
height is approximately equal to the height of the joystick.
The washer serves two purposes when GT11/GT31 is put inside the
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.