Hi Greg,

I can't say I'm an expert on fuses. I use slow blow fuses because they will
blow plenty fast if there is a short circuit and they allow for a short
period of higher current flow. That is nice because the GPS-NAV and 302
have internal capacitors (I believe) to help ride through very short power
losses such as when switching between 2 glider batteries (a very nice
feature not found in many soaring instruments). The capacitors cause the
units to have a slightly high inrush current when power is first applied.

That is my 2 cents. Can anyone express agreement or concern with my
suggestion?

Thanks,

Paul Remde
Cumulus Soaring, Inc.
http://www.cumulus-soaring.com

"Greg Arnold" wrote in message
news:WbjCd.38296$8e5.30997@fed1read07...
Why "slow blow"? I am pretty sure my gliders always came with "fast blow"
fuses.


Paul Remde wrote:
Hi,

Make sure it is a "Slow Blow" fuse.

1 A for the GPS-NAV and 2 A for the 302 would be a good start.

Paul Remde

"Greg Arnold" wrote in message
newsFfCd.38262$8e5.14139@fed1read07...

cernauta wrote:

Brian Iten wrote:



. I have looked in the appropriate
manuals for the proper fuse size but can not find anything.
Can anyone help me with this?


Hi,

1 Amp is usually fine, and easily available.

Aldo Cernezzi

The 302 manual says the instrument uses 900 mA when hooked to an Ipaq
with backlight on, so a 1 amp fuse might be a bit small.