GNS 430 reception problems

The Visitor wrote:


Clay wrote:

Sounds like the antenna or the coax.

Good point. An overy bent or kinked and pinched coax mould be a problem.

An easy way to test this would be to swap the coax between
the two radios and see if the 430 improves and/or the 155
degrades.

ktbr wrote:

Sounds like the antenna or the coax.

Good point. An overy bent or kinked and pinched coax mould be a problem.

An easy way to test this would be to swap the coax between
the two radios and see if the 430 improves and/or the 155
degrades.

Just as another data point, we had the same problem with our GNS480. The comm
section may be the same as the 430, I'm not sure about that. Anyway, we swapped
the antenna cables between the 480 and the KX155 to see whether the problem
stayed with the radio, or moved with the antenna. Oddly, the problem just went
away, or at least became less pronounced. Maybe something got unkinked, I don't
know. The KX155 is still the more sensitive receiver.

DGB

Dave Butler wrote:

Interesting that is the first time someone else has reported a similar
problem. We also (allegedly) did the swap the antenna test. I say
allegedly because I'm not convinced it ever occurred.

But because you had a similar issue with the KX155 could there be some
interaction there? I know that is a long shot but interference is a
funny thing.

Do other folks have a GNS4x0 and KX155? I've got to believe that is a
very very common config.

KC

ktbr wrote:

Sounds like the antenna or the coax.

Good point. An overy bent or kinked and pinched coax mould be a problem.

An easy way to test this would be to swap the coax between
the two radios and see if the 430 improves and/or the 155
degrades.

Just as another data point, we had the same problem with our GNS480. The
comm section may be the same as the 430, I'm not sure about that.
Anyway, we swapped the antenna cables between the 480 and the KX155 to
see whether the problem stayed with the radio, or moved with the
antenna. Oddly, the problem just went away, or at least became less
pronounced. Maybe something got unkinked, I don't know. The KX155 is
still the more sensitive receiver.

DGB

I have a Garmin SL30 nav/com and a King com. Using the 'both' button on the
audio panel, the audio output level from the King drops precipitously.
Until I discovered this it appeared the King radio was no longer working
correctly after the SL30 was installed. In order to hear the outputs from
both of the radios at the same time the volume of the King must be
increased. When the radios are listened to by themselves, the King's audio
level is normal.

--
Best Regards,
Mike

http://photoshow.comcast.net/mikenoel

"Kevin Clarke" wrote in message
ink.net...
Dave Butler wrote:

Interesting that is the first time someone else has reported a similar
problem. We also (allegedly) did the swap the antenna test. I say
allegedly because I'm not convinced it ever occurred.

But because you had a similar issue with the KX155 could there be some
interaction there? I know that is a long shot but interference is a funny
thing.

Do other folks have a GNS4x0 and KX155? I've got to believe that is a very
very common config.

KC

ktbr wrote:

Sounds like the antenna or the coax.

Good point. An overy bent or kinked and pinched coax mould be a
problem.

An easy way to test this would be to swap the coax between
the two radios and see if the 430 improves and/or the 155
degrades.

Just as another data point, we had the same problem with our GNS480. The
comm section may be the same as the 430, I'm not sure about that. Anyway,
we swapped the antenna cables between the 480 and the KX155 to see
whether the problem stayed with the radio, or moved with the antenna.
Oddly, the problem just went away, or at least became less pronounced.
Maybe something got unkinked, I don't know. The KX155 is still the more
sensitive receiver.

DGB