Flight Lessons

"Corey C. Jordan" wrote in message
...

Hey Jordan,

I see your little buddy Copp is still banned from usenet for life.

Bwahahahahahahahaha

In article , "Paul J. Adam"
wrote:


That is not he fault of the GPS.

No, but it's a human mistake. It's a training issue to make sure that
when the GPS bings off a waypoint, you check a few landmarks to make
sure you're where the gadget says you should be. Currently, that doesn't
reliably happen because people have too much faith in the GPS.

the GPS acts up or the information it provides isn't used wisely.

That goes for anything and everything. Not just GPS.

Training is very important. To quote a friend, "You have to be smarter
than what you're working on."


The trouble is, GPS is too damn useful. Mike Marron wrote eloquently
about how a working GPS can replace most of your flight instruments...
as long as the GPS is working. But it's a low-powered signal from orbit
and it's easily jammed. GPS jamming isn't a feature of civilian life,
but it's a serious military problem. GPS offers much more than any other
navaid I've heard of, no wonder people turn to it first.

Oh Bo....ks.
GPS is easy to TRY to jam. Well known signal processing techniques are
all that's required to defeat jamming.

--
Harry Andreas
Engineering raconteur

In article , "Paul J. Adam"
wrote:

Of course, if the GPS co-ordinates are wrongly calculated, wrongly
entered, or the GPS battery fails midflight, that's a very lost
formation... with no navigators to rescue them.

Military aircraft GPS use aircraft power with transient backup, not batteries.

--
Harry Andreas
Engineering raconteur

"Harry Andreas" wrote in message
...
In article , "Paul J. Adam"
wrote:

The trouble is, GPS is too damn useful. Mike Marron wrote eloquently
about how a working GPS can replace most of your flight instruments...
as long as the GPS is working. But it's a low-powered signal from orbit
and it's easily jammed. GPS jamming isn't a feature of civilian life,
but it's a serious military problem. GPS offers much more than any other
navaid I've heard of, no wonder people turn to it first.

Oh Bo....ks.
GPS is easy to TRY to jam. Well known signal processing techniques are
all that's required to defeat jamming.

GPS is neither "easy to jam", or an apropriate "replacement" for existing
navigation systems. While Mike may have spread the snake oil in a manner
pleasing to our ground pounder lune Paul, an instrument cross check is a
necessity to maintain safe operations. Fused navigation sensors wisely take
this instrument cross check and make it part of the automation; but as Ed
points out, relying on only one instrument often results in errors.

John P. Tarver, MS/PE

"Harry Andreas" wrote in message
...
In article , "Paul J. Adam"
wrote:

Of course, if the GPS co-ordinates are wrongly calculated, wrongly
entered, or the GPS battery fails midflight, that's a very lost
formation... with no navigators to rescue them.

Military aircraft GPS use aircraft power with transient backup, not
batteries.

One has to wonder why Paul is even posting to this thread.

In message ,
Harry Andreas writes
In article , "Paul J. Adam"
wrote:
The trouble is, GPS is too damn useful. Mike Marron wrote eloquently
about how a working GPS can replace most of your flight instruments...
as long as the GPS is working. But it's a low-powered signal from orbit
and it's easily jammed. GPS jamming isn't a feature of civilian life,
but it's a serious military problem. GPS offers much more than any other
navaid I've heard of, no wonder people turn to it first.

Oh Bo....ks.
GPS is easy to TRY to jam. Well known signal processing techniques are
all that's required to defeat jamming.

Harry, with GPS you're trying to not only detect a domestic light bulb
in low earth orbit, but to pull useful signal out of it. Doesn't take
much in-band noise to spoil that game, because there isn't much signal
there to start with. Directional aerials, parking beam nulls on the
jammers, games like that help but they also cost money and volume and
weight.


It's not the end of the world if the enemy whips out a few jammers, and
it's harder to do well than some would have you believe, but it's still
a genuine concern with fewer easy answers you suggest.

If there's a cheap, quick, easy and reliable magic bullet to make GPS
unjammable, then hasten down to your patent office at once.

--
When you have to kill a man, it costs nothing to be polite.
W S Churchill

Paul J. Adam MainBoxatjrwlynch[dot]demon{dot}co(.)uk

In message ,
Harry Andreas writes
In article , "Paul J. Adam"
wrote:

Of course, if the GPS co-ordinates are wrongly calculated, wrongly
entered, or the GPS battery fails midflight, that's a very lost
formation... with no navigators to rescue them.

Military aircraft GPS use aircraft power with transient backup, not batteries.

Assuming a fully integrated GPS, rather than a civilian handheld
attached to the glareshield as an Urgent Operational Requirement
solution pending the procurement of the fully integrated navigation
upgrade.

Life is rarely as perfect as you'd like.

--
When you have to kill a man, it costs nothing to be polite.
W S Churchill

Paul J. Adam MainBoxatjrwlynch[dot]demon{dot}co(.)uk

"Paul J. Adam" wrote in message
...
In message ,
Harry Andreas writes
In article , "Paul J. Adam"
wrote:

Of course, if the GPS co-ordinates are wrongly calculated, wrongly
entered, or the GPS battery fails midflight, that's a very lost
formation... with no navigators to rescue them.

Military aircraft GPS use aircraft power with transient backup, not
batteries.

Assuming a fully integrated GPS,

Clearly Adam has absolutely no information to share in thie area of aircraft
avionics, or systems. One has to wonder why Adam feels his validation of
Mike Marron is more than just fluff.

"Tarver Engineering" wrote:

Clearly Adam has absolutely no information to share in thie area of aircraft
avionics, or systems. One has to wonder why Adam feels his validation of
Mike Marron is more than just fluff.

Speaking of "fluff," you need some fresh bait.

-Mike Marron

"Tarver Engineering" wrote:

I don't mind if you can learn Mike, but so far, you are just another
dip****.

Coming from you (of all people!) that's incontrovertible proof that
I'm in good company.

See ya!

-Mike Marron