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Old December 7th 11, 10:10 PM posted to rec.aviation.soaring
Paul Remde
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Posts: 1,691
Default Cambridge 302 USB Port

Hi,

I'm sorry, but I must respectfully disagree with your comment about the 302
not being able to power a PDA. I have used many different PDAs with a 302
for years with no problems. I think customers have problems when they
connect a PDA with the PDA's battery low. PDAs with low batteries can draw
a LOT of current (over 1 A). The 302 can supply plenty of current for all
PDAs and PNAs I've seen - as long as they are fully or nearly fully charged.

Paul Remde
Cumulus Soaring, Inc.

"GK" wrote in message
...
Will the DB-9 port provide power to the PDA?

- Yes and no. The power source from C302 is problematic, especially
when the battery on your PDA is charging. I have seen my C302 freezing
and working erratically under those circumstances. It’s better if you
provide the power via the power converter directly from your glider's
battery.
The USB port on the C302 is pretty much useless since you have to
switch communication between serial and the USB with a dip switch
which is located at the back of the C302. In my case its still
requires taking the canopy off to reach the back side of the C302
anytime I like to use the USB port. You can also download flight logs
and declare the task via the PDA serial communication and gliding
softwa Winpilot(and a small program you can obtain for free from
Cambridge aero) or the Connect me from seeyou.

GK