Garmin 396 Reception Problems Solved!

Exactly.

All those radios were designed long before GPS. They are noisy and will
interfere with GPS.

That's the reason King made the "A" series of the 155 and 165. They are
designed to co-exist with GPS.


Karl
wrote in message
...
If I understand the reply, noted below, then the intereference is a
stronger signal than the satellites. You cannot fix the impossible!
Either you increase the power of the satellites many miles away to
make it stronger than the local interference or remove the local
interference.

As for the older equipment it was probably less sensitive or used
different frequencies within the receiver. Sadly that's how
electronics works. If you put the GPS antenna close to a source of
interference it will pick it up.

Interferece problems were often reported by viewers, of TV in UK,
using indoor antennas. Whilst they may work it is more by luck.

"karl gruber" wrote in message ...
Exactly.

All those radios were designed long before GPS. They are noisy and will interfere with GPS.

That's the reason King made the "A" series of the 155 and 165. They are designed to co-exist with GPS.


Karl

Garmin designed the 396 stuff for airplanes. Those radios are in airplanes. Garmin made the wrong design choices when
making those boxes. Didn't Garmin buy Apollo? You would think they would have some lessons learned in there somewhere...

Agreed..

I have a Lowrance 2000C, and before that, the 1000..

Neither had (or has now) any problem with the "old" radios in our
"old" (1976) Warrior

A bit of testing would have most likely shown these issues before
production.

If part time pilots can find the problem, you would think the pros
would also..

But then there was the "Magnets in the antenna thingy " as well...



Dave







On Thu, 4 Oct 2007 19:06:46 -0400, "Blueskies"
wrote:


"karl gruber" wrote in message ...
Exactly.

All those radios were designed long before GPS. They are noisy and will interfere with GPS.

That's the reason King made the "A" series of the 155 and 165. They are designed to co-exist with GPS.


Karl

Garmin designed the 396 stuff for airplanes. Those radios are in airplanes. Garmin made the wrong design choices when
making those boxes. Didn't Garmin buy Apollo? You would think they would have some lessons learned in there somewhere...

On Thu, 4 Oct 2007 19:06:46 -0400, "Blueskies"
wrote:


"karl gruber" wrote in message ...
Exactly.

All those radios were designed long before GPS. They are noisy and will interfere with GPS.

That's the reason King made the "A" series of the 155 and 165. They are designed to co-exist with GPS.


Karl

Garmin designed the 396 stuff for airplanes. Those radios are in airplanes. Garmin made the wrong design choices when
making those boxes. Didn't Garmin buy Apollo? You would think they would have some lessons learned in there somewhere...


Maybe if you buy all the equipment from the same manufacturer it would
work. When you mix manufacturers they build things slightly
differently using different fequencies.

It may be a poor analogy but if you bought a door for your car would
you expect it to fit all other cars? :-)

The best cure is an external antenna which is therefore shielded from
the avionics equipment so less vulnerable to interference.

I once came across a problem with a commercial TV transmitter breaking
through into a taxi radio some 40 miles away. The TV transmitter was
well in specification and the spurious were very very low but the taxi
radio has a very sensitive receiver. The taxi firm had to use another
frequency but that's how electronics works!