On Fri, 29 Jan 2010 11:22:14 -0800, noel.wade wrote:

Ditching the GPS component from the PDA/PNA means a simpler device with
a much lower power consumption level. Seems to me that there are a lot
of non-graphical (but IGC-legal) loggers and flight computers out there,
and most work fine. Its the moving-map/navigation aspect that needs
work - so why not concentrate on that?

Power consumption isn't a problem once you've connected the PNA to your
main battery: looked at that way, it doesn't really matter where the GPS
engine is because it will be sucking on your 12v supply no matter where
its installed.

In the UK, anyway, PNAs are both cheaper than PDAs and there's a much
bigger range available, so they are the obvious beasts to buy. Their main
drawback is the lack of any form of serial port provide a NMEA feed to a
logger or a decent vario.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |