GPS 396 audio terrain warnings

Thanks to all. I'm going to try one of these approaches and see.

Darrel Toepfer wrote:
mikem wrote:

The prob I've had with the audio is a loud buzz unless I unplug the
power and run on battery.


Folks on Cessna Plots forum have had good luck with this:
http://www.crutchfield.com/S-xGL4Bin...35&i=127SNI135

and also a similar device available from RatShack


Radio Shacks is cheaper but requires adapters:
http://www.radioshack.com/product/in...entPage=family

Ground Loop Isolator $16.99 Model: 270-054

You'll need 2 (depends what you're adapting to) - RCA Female to Mini
Stereo Male adapters Catalog #: 274-883 $5.99 ea.
http://www.radioshack.com/product/in...entPage=family


Cheaper here ($2.38 each):
http://www.valcoelectronics.com/Merc..._Code =18-008


ES-034 The ES-034 isolates multiple components to prevent ground loops.
It may be used as a trouble-shooting installation tool, to break grounds
without removing grounding parts. The ES-034 is designed to interface
with line-level outputs and is equipped with two male and female RCA
jacks, for interconnection with cable adapters/components. $14.00
http://www.buyreliant.com/caudio/noise.htm
http://www.valcoelectronics.com/Merc...t_Code =ES034


So you'll need one of these (Stereo mini to dual RCA male $3.58):
http://www.valcoelectronics.com/Merc...ct_Code =Y3AA

Mike,

Folks on Cessna Plots forum have had good luck with this:
http://www.crutchfield.com/S-xGL4Bin...35&i=127SNI135

You are The Man! I bought one and it works perfectly!! Thanks a bunch!!!

Kobra

In article 1133984655.396756@sj-nntpcache-3, Dave Butler
wrote:
I do, but Garmin doesn't seem to be very interested in helping. I've
exchanged
several emails with their tech support. They don't acknowledge that there is
anything wrong.


I have noticed this problem at airports with higher terrain at the
approach/departure end of the runway. My home airport is one such
airport.

I think there was discussion on the Beech list a while ago about this
issue. I believe that Garmin informed someone on the list that the 396
filters terrain alerts within 2nm of the airport, and that MAY be the
case relative to the center of the field, but I know that it certainly
isn't relative to the runway threshold. Someone then mentioned that
Garmin stated that an increase to 4nm was planned for a future update.
However, that increase doesn't appear to be present in the current code
(v2.70).



JKG

Dave Butler wrote:
Does anyone else have their Garmin 396 connected to the audio in their airplane?

If so, do you get terrain warnings every time you approach an airport to land?

I do, but Garmin doesn't seem to be very interested in helping. I've exchanged
several emails with their tech support. They don't acknowledge that there is
anything wrong.

They say they have "some algorithms" to prevent the audio terrain alert when
approaching an airport to land. They say they might not work correctly for all
airports. My experience is that they don't work for any airport I have visited.

If anyone else is seeing this behavior, please contact Garmin so that they will
know I'm not the only one.

Thanks.

Terrian warnings need to stop below 500 feet when landing at the
destination airport. Last 500 feet does not need to be a distraction
to pilot. It is not a good time to be lowering the volume or setting
to mute. This is my only complant.

The 396 is a great GPS/weather system. Display is much better than
296. XM audio sounds great too.

Dave Butler wrote:
Does anyone else have their Garmin 396 connected to the audio in their airplane?

If so, do you get terrain warnings every time you approach an airport to land?

I do, but Garmin doesn't seem to be very interested in helping. I've exchanged
several emails with their tech support. They don't acknowledge that there is
anything wrong.

They say they have "some algorithms" to prevent the audio terrain alert when
approaching an airport to land. They say they might not work correctly for all
airports. My experience is that they don't work for any airport I have visited.

If anyone else is seeing this behavior, please contact Garmin so that they will
know I'm not the only one.

Thanks.

Dave Butler wrote:
Does anyone else have their Garmin 396 connected to the audio in their airplane?

If so, do you get terrain warnings every time you approach an airport to land?

I do, but Garmin doesn't seem to be very interested in helping. I've exchanged
several emails with their tech support. They don't acknowledge that there is
anything wrong.

They say they have "some algorithms" to prevent the audio terrain alert when
approaching an airport to land. They say they might not work correctly for all
airports. My experience is that they don't work for any airport I have visited.

If anyone else is seeing this behavior, please contact Garmin so that they will
know I'm not the only one.

Thanks.

Dave Butler wrote:

Does anyone else have their Garmin 396 connected to the audio in their
airplane?

If so, do you get terrain warnings every time you approach an airport to
land?

replying to myself

From Garmin's web site today:

Changes made from version 2.70 to 2.80:

* Improved behavior of audible terrain alerts when operating near airports.

....

Thanks, Garmin!

Dave Butler wrote:
Dave Butler wrote:

Does anyone else have their Garmin 396 connected to the audio in their
airplane?

If so, do you get terrain warnings every time you approach an airport to
land?

replying to myself

From Garmin's web site today:

Changes made from version 2.70 to 2.80:

* Improved behavior of audible terrain alerts when operating near airports.

...

Thanks, Garmin!