Most PNA are perfectly readable under direct sunlight, with no reflections.
We just discovered that, using polarized sunglasses, and inverting either
polarization on sunglasses by 90 degrees, or simply turning 90 degrees the
screen (physically, meaning rotate the device) the screen becomes bright and
clear.
There's more about this.
We discovered that the polarization "effect" has different levels, peculiar
to each device.
For example, some SkyWay car navigators are very good with polarized
sunglasses in landscape mode.
Yesterday I have tested a MIO M400 PNA (a Nilox really), very cheap, 4.3
inches 480x272, and for the first time in 4 years I was able to perfectly
read the screen under sunlight during the flight (4 hours).
So price is not an issue for sunlight readability, on PNAs. It's all a
matter of testing, and test again with polarized sunglasses.
During the winter we shall dig into these matters, because not all
sunglasses behave the same with these PNAs.

In order to get to these conclusions, I have bought several PNAs (MIO,
NILOX, HP, NAVIGON, etc.) and did some tests for the LK8000 usability.
I think that a 4.3 inches device (that comes with a real RS232 and-or
bluetooth) costing around 100 dollars (like a MIO) or its chinese equivalent
will be widely used and appreciated in the next season.


"Richard" ha scritto nel messaggio
...
On Sep 13, 12:20 am, Eric Greenwell wrote:
On 9/12/2010 9:36 AM, wrote: Yea I know its blatant
spam but everyone else does it.

initial Pic's here..
http://www.facebook.com/group.php?gi...17785&v=photos

Will be flying with it today...

I tried to find a place for a 7" display in my glider and it's hopeless.
The 6" ClearNav just barely fits; a 5" Oudie shape is near perfect.
Personally, brighter is better than bigger. A 6" display as bright as
the ClearNav but with a case only 1/8" or so wider than the display
would be almost perfect.

Looking forward to pictures of the unit in flight.

--
Eric Greenwell - Washington State, USA (netto to net to email me)

- "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS,
Flarmhttp://tinyurl.com/yb3xywl

- "A Guide to Self-launching Sailplane Operation Mar/2004" Much of what
you need to know tinyurl.com/yfs7tnz

I have tried the 7" chinese PDA it is worse than the 5" version. In
the sun viewabily is distroyed by glare and reflection. In general
anything with a touch overlay is not good in the sun. In the sun the
unit is very dim and extremely hard to distingusih even what software
you are running. Out of the sun it is great and runs both SeeYouMoble
PNA & WinPilot PNA. Of course I am comparing to the Ultimate which is
not effected by the sun but costs much more. You do not need to fly
with the unit to test in the sun just go out and place in the sun.

Sunlight readabilty depends on the lack of a touch overlay, the
contrast ratio, and the coatings on the display. The backlight
brightness does not have much effect on the sunlight readability.

Richard
www.craggyaero.com