GPS / radio interference

[Cub Driver]

My Garmin 296 causes a hiss in the Vertex handheld sufficient to make
the radio unusable when they are mounted close.

Where does the interference come from? If I use the remote antenna on
the Garmin, will that suffice, or do I have to separate the two boxes?
all the best -- Dan Ford
email: (put Cubdriver in subject line)

Warbird's Forum www.warbirdforum.com
Piper Cub Forum www.pipercubforum.com
the blog www.danford.net

[Dan Luke]

"Cub Driver" wrote:
>
> My Garmin 296 causes a hiss in the Vertex handheld sufficient to make
> the radio unusable when they are mounted close.
>
> Where does the interference come from? If I use the remote antenna on
> the Garmin, will that suffice, or do I have to separate the two boxes?

Hmmm! My Icom handheld kills my 296!

Try the remote antenna; it works better, anyway.
--
Dan
C172RG at BFM

[john smith]

It is probably the processor or clock on the 296.
Physical separation between the two should eliminate the hiss.
Take the 296 and walk around the house with different electronic audio
devices turned on. Hold the 296 in close proximity to each electronic
audio device and listen for the hiss. (CD player, AM/FM stereo,
television, etc.) Make the 296 change screens, scroll a map, etc and
listen to determine if the sound of the hiss changes.

Cub Driver wrote:
> My Garmin 296 causes a hiss in the Vertex handheld sufficient to make
> the radio unusable when they are mounted close.
>
> Where does the interference come from? If I use the remote antenna on
> the Garmin, will that suffice, or do I have to separate the two boxes?
> all the best -- Dan Ford
> email: (put Cubdriver in subject line)
>
> Warbird's Forum www.warbirdforum.com
> Piper Cub Forum www.pipercubforum.com
> the blog www.danford.net