GPS 396 audio terrain warnings

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.

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

Google groups munched the url. Try:
http://tinyurl.com/8dn9o

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

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

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!