Re: Newbie needing assistance.

"p" == "peter" writes:

p> In response to Jarod, the old Garmin 'speed limit' of 90 knots
p> disappeared many years ago, so there's no problem using any of
p> their

Yes, but I bought mine in '95 I think. So I think I am 90 KTS
limited. :(

p> (or other manufacturer's) units in your plane. The
p> aviation-specific models are much more expensive and include
p> specialized databases but many of them can also be loaded with
p> road, marine, and topo maps for other uses. Quite a few private
p> pilots also use general-purpose GPS models without the aviation
p> databases - just depends on what features are considered
p> necessary.

p> I expect you'll find that almost any current model will perform
p> better, especially under poor reception conditions, than your old
p> GPS75. So

Well, when I looked at the screen it was tracking as many as possible
all with good signal strengths so I am guessing that there is a
software bug that if I exceed the speed limit, it shows up as "Poor
GPS coverage"

p> I'd look for a unit that could be used for aviation as well as
p> other applications and plan on retiring the 75 (or using it as a
p> backup).

Yeah. Probably. But just in mentioning.

Looking at the new PDA GPS units which are used for "CAR NAVIGATION"
systems, Lat/Long are not given.

"Northing and Easting" are given, which is an adopted system for
street directory systems. Yuck.

So if I want to fly from an airport, entering the N/S E/W Lat/Long
would be wrong.


p> Hard to give specific model recommendations without knowing how
p> you'd use it and the price range. Memory capacities for maps
p> vary, so one factor is how long a trip you'd use it for without
p> having access to a laptop or other computer to reload maps. Do
p> you want one with the

Appologies, and true.

I guess I shall have to get more info about the "extras" I want on
it.

Mine as it is has a basic display and gives Lat/Long, XTE, a CDI, a
relativly basic map mode which is ok for what I do, and gives SR & SS
times and has a fuel burn calculator too to help with trips.

p> aviation database or would a general purpose model be sufficient?
p> Would you always have external power available or would it be
p> running on internal batteries for long periods of time?

Power, well, that is a bit moot. I would make up a cable to plug
into a ciggie lighter so I would have external power.

Battery would be there only to smooth out glithes from the external
supply.






I have seen the ones with the airspace things and took a guy for a
flight and it was neat seeing the airspaces move and getting warnings
about "Approaching blah blah airspace".

Ofcourse thinking about that, what good is that unless you have it
"in your face" while flying.

I am not wanting to use the GPS as primary guidance, but more as a
backup - just to keep me "honest" when flying.

Comming back from YSWG and the GPS not working, I constantly got
fixes of where I was anyway to keep on track.

Just the GPS would of been better to calculate ETAs better than I
could.


Flights would be limited to within Oz for now. I can not really see
me as getting O/S flying.

But I guess a "basic" GPS would be adaquate.

I program the waypoints in and it tells me where I am WRT them, ETAs
etc....

That way I could take it O/S and not have to worry.

B&W/Colour screens. I am not sure how much of a price difference
there is and if there is a big one, is it worth waiting a bit longer
for the price to drop to a more affordable price.


Just idle thoughts there.


Thanks again for information/replies.





--
========
Thanks.....

Jarod


.

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