Overstocked on PDA's

I have been happily using a 3760 iPAQ for two seasons now, with no
display visibility problem. The only drawback is actually the poor
autonomy on internal battery.

As I am flying club gliders, I am using a set of 4 D-size NiCd batteries
(4400 mAh @ 4.8 V) which allows for something like 10 hours with a
Navman 3000.

Marc

Marc Ramsey a écrit:
Jim Kelly wrote:

| The reflective color displays work OK in sunlight, with the
backlight on
| or off. They work in shade if the backlight is on.

However these units are quite old now and I find that even with my
current model h5550 I could happily have it's speed many fold better


The extra speed (in comparison to earlier iPaqs) is only useful if
you're trying to display terrain. Since the terrain makes the display
even harder to read, I don't see much point to spending the extra money.

Afaicr no iPaq models have had this type of display for 2 years or
more?


That's correct, all Compaqs (and just about every other production PDA)
since the 39xx have used transflective displays, because they are vastly
better in the office environment.

The transflective
| displays are basically unreadable in sunlight or shade with the
| backlight off, with the backlight full on in sunlight they are
| marginally readable, OK in shade.

Hence we leave the backlight on (requires an efficient 5v supply
from the glider's battery) and need to solve the reflective issue.


The reflections are only part of the problem. The older models were
easier to read, even with reflections, as they had better contrast. The
newer transflective designs are getting brighter backlights, that should
help improve the sunlit display.

Marc