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Old April 13th 04, 04:33 AM
 
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Default Receivers grounding out

I have an R-2000 and 830S by Kenwood.
Both radios do not receive when plugging in coax connectors into the
S0-239 receptacles. I've eliminated the cables as the problem. I
believe it is possible salt air corrosion internally in both radios.
The signals and noise drop out completely when screwing in the PL-259
connectors all the way in and tightening them down. When they are only
half way plugged in I get normal reception when wiggling the cable but
they are not screwed in completely and not making a good electrical
connection. I lived on the beach and sometimes would open the windows
for ocean breezes. The 830S was right next to the open window and the
R-2000 was sitting on a night table a few feet away from the open
windows. I've eliminated the cables themselves and suspect salt air
corrosion internally in both radios.

Is there a spray contact/solder connection cleaner available on the
market that might help solve this problem?

Recently I had the S0-239 replaced onthe 830S and still have the same
reception problem. The noise and signals drop out completely in both
radios when screwing in the coax connectors (PL-259) completely.

Thanks for the help!

73's
K4JDP-John

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Old April 13th 04, 07:39 AM
Pete KE9OA
 
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I know that you have checked out the cables, but it does sound like it could
be a problem at the antenna end if it is not the the cables themselves. The
fact that you can receive signals when the plug end is only halfway in
illustrates the fact that the receivers are probably working properly. Could
be a short to ground at the entenna end. I am assuming that when you checked
the cables you did do an end to end check with an Ohmmeter, both for
continuity and for center conductor to the ground shell for a short circuit.

Pete

wrote in message
...
I have an R-2000 and 830S by Kenwood.
Both radios do not receive when plugging in coax connectors into the
S0-239 receptacles. I've eliminated the cables as the problem. I
believe it is possible salt air corrosion internally in both radios.
The signals and noise drop out completely when screwing in the PL-259
connectors all the way in and tightening them down. When they are only
half way plugged in I get normal reception when wiggling the cable but
they are not screwed in completely and not making a good electrical
connection. I lived on the beach and sometimes would open the windows
for ocean breezes. The 830S was right next to the open window and the
R-2000 was sitting on a night table a few feet away from the open
windows. I've eliminated the cables themselves and suspect salt air
corrosion internally in both radios.

Is there a spray contact/solder connection cleaner available on the
market that might help solve this problem?

Recently I had the S0-239 replaced onthe 830S and still have the same
reception problem. The noise and signals drop out completely in both
radios when screwing in the coax connectors (PL-259) completely.

Thanks for the help!

73's
K4JDP-John



  #3   Report Post  
Old April 13th 04, 07:39 AM
Pete KE9OA
 
Posts: n/a
Default

I know that you have checked out the cables, but it does sound like it could
be a problem at the antenna end if it is not the the cables themselves. The
fact that you can receive signals when the plug end is only halfway in
illustrates the fact that the receivers are probably working properly. Could
be a short to ground at the entenna end. I am assuming that when you checked
the cables you did do an end to end check with an Ohmmeter, both for
continuity and for center conductor to the ground shell for a short circuit.

Pete

wrote in message
...
I have an R-2000 and 830S by Kenwood.
Both radios do not receive when plugging in coax connectors into the
S0-239 receptacles. I've eliminated the cables as the problem. I
believe it is possible salt air corrosion internally in both radios.
The signals and noise drop out completely when screwing in the PL-259
connectors all the way in and tightening them down. When they are only
half way plugged in I get normal reception when wiggling the cable but
they are not screwed in completely and not making a good electrical
connection. I lived on the beach and sometimes would open the windows
for ocean breezes. The 830S was right next to the open window and the
R-2000 was sitting on a night table a few feet away from the open
windows. I've eliminated the cables themselves and suspect salt air
corrosion internally in both radios.

Is there a spray contact/solder connection cleaner available on the
market that might help solve this problem?

Recently I had the S0-239 replaced onthe 830S and still have the same
reception problem. The noise and signals drop out completely in both
radios when screwing in the coax connectors (PL-259) completely.

Thanks for the help!

73's
K4JDP-John



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Old April 13th 04, 09:44 AM
BDK
 
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In article ,
says...
I have an R-2000 and 830S by Kenwood.
Both radios do not receive when plugging in coax connectors into the
S0-239 receptacles. I've eliminated the cables as the problem. I
believe it is possible salt air corrosion internally in both radios.
The signals and noise drop out completely when screwing in the PL-259
connectors all the way in and tightening them down. When they are only
half way plugged in I get normal reception when wiggling the cable but
they are not screwed in completely and not making a good electrical
connection. I lived on the beach and sometimes would open the windows
for ocean breezes. The 830S was right next to the open window and the
R-2000 was sitting on a night table a few feet away from the open
windows. I've eliminated the cables themselves and suspect salt air
corrosion internally in both radios.

Is there a spray contact/solder connection cleaner available on the
market that might help solve this problem?

Recently I had the S0-239 replaced onthe 830S and still have the same
reception problem. The noise and signals drop out completely in both
radios when screwing in the coax connectors (PL-259) completely.

Thanks for the help!

73's
K4JDP-John



Like another poster said, this is a symptom of an antenna/cable problem.
Take a piece of wire, and wad one end up and jan it into the center of
the SO-239. I bet both radios receive just fine. When my best antenna's
coax filled up with water after cracking due to old age/sun damage, it
cut the signal by at least 90% with the connector's shell connected, but
with just the center pin connected, it worked fairly well, for recieve.

I would be willing to bet a good amount of money there is nothing really
wrong with yuor radios..

BDK
  #5   Report Post  
Old April 13th 04, 09:44 AM
BDK
 
Posts: n/a
Default

In article ,
says...
I have an R-2000 and 830S by Kenwood.
Both radios do not receive when plugging in coax connectors into the
S0-239 receptacles. I've eliminated the cables as the problem. I
believe it is possible salt air corrosion internally in both radios.
The signals and noise drop out completely when screwing in the PL-259
connectors all the way in and tightening them down. When they are only
half way plugged in I get normal reception when wiggling the cable but
they are not screwed in completely and not making a good electrical
connection. I lived on the beach and sometimes would open the windows
for ocean breezes. The 830S was right next to the open window and the
R-2000 was sitting on a night table a few feet away from the open
windows. I've eliminated the cables themselves and suspect salt air
corrosion internally in both radios.

Is there a spray contact/solder connection cleaner available on the
market that might help solve this problem?

Recently I had the S0-239 replaced onthe 830S and still have the same
reception problem. The noise and signals drop out completely in both
radios when screwing in the coax connectors (PL-259) completely.

Thanks for the help!

73's
K4JDP-John



Like another poster said, this is a symptom of an antenna/cable problem.
Take a piece of wire, and wad one end up and jan it into the center of
the SO-239. I bet both radios receive just fine. When my best antenna's
coax filled up with water after cracking due to old age/sun damage, it
cut the signal by at least 90% with the connector's shell connected, but
with just the center pin connected, it worked fairly well, for recieve.

I would be willing to bet a good amount of money there is nothing really
wrong with yuor radios..

BDK


  #6   Report Post  
Old April 13th 04, 01:34 PM
Dale Parfitt
 
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wrote in message
...
I have an R-2000 and 830S by Kenwood.
Both radios do not receive when plugging in coax connectors into the
S0-239 receptacles. I've eliminated the cables as the problem. I
believe it is possible salt air corrosion internally in both radios.
The signals and noise drop out completely when screwing in the PL-259
connectors all the way in and tightening them down. When they are only
half way plugged in I get normal reception when wiggling the cable but
they are not screwed in completely and not making a good electrical
connection. I lived on the beach and sometimes would open the windows
for ocean breezes. The 830S was right next to the open window and the
R-2000 was sitting on a night table a few feet away from the open
windows. I've eliminated the cables themselves and suspect salt air
corrosion internally in both radios.

If it receives with the PL259 partially plugged in, how can the connector be
shorted? This a classic case of a shorted connector/cable/antenna.

W4OP


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Old April 13th 04, 01:34 PM
Dale Parfitt
 
Posts: n/a
Default


wrote in message
...
I have an R-2000 and 830S by Kenwood.
Both radios do not receive when plugging in coax connectors into the
S0-239 receptacles. I've eliminated the cables as the problem. I
believe it is possible salt air corrosion internally in both radios.
The signals and noise drop out completely when screwing in the PL-259
connectors all the way in and tightening them down. When they are only
half way plugged in I get normal reception when wiggling the cable but
they are not screwed in completely and not making a good electrical
connection. I lived on the beach and sometimes would open the windows
for ocean breezes. The 830S was right next to the open window and the
R-2000 was sitting on a night table a few feet away from the open
windows. I've eliminated the cables themselves and suspect salt air
corrosion internally in both radios.

If it receives with the PL259 partially plugged in, how can the connector be
shorted? This a classic case of a shorted connector/cable/antenna.

W4OP


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Old April 14th 04, 05:39 AM
Temporary FL@L&ER
 
Posts: n/a
Default

On Tue, 13 Apr 2004 12:34:45 GMT, "Dale Parfitt"
wrote:


wrote in message
...
I have an R-2000 and 830S by Kenwood.
Both radios do not receive when plugging in coax connectors into the
S0-239 receptacles. I've eliminated the cables as the problem. I
believe it is possible salt air corrosion internally in both radios.
The signals and noise drop out completely when screwing in the PL-259
connectors all the way in and tightening them down. When they are only
half way plugged in I get normal reception when wiggling the cable but
they are not screwed in completely and not making a good electrical
connection. I lived on the beach and sometimes would open the windows
for ocean breezes. The 830S was right next to the open window and the
R-2000 was sitting on a night table a few feet away from the open
windows. I've eliminated the cables themselves and suspect salt air
corrosion internally in both radios.

If it receives with the PL259 partially plugged in, how can the connector be
shorted? This a classic case of a shorted connector/cable/antenna.

W4OP

Could be the connector in the radio itself, the center pin connection
could have been enlarged by a poorly soldered PL259, thus expanding
the fingers in the connector. Had this problem on a Yaesu 757GX,
squeezed the fingers in via a knife blade, no further problems.
Always check the center conductor for solder on the outside of the
plug, it changes the diameter and can mess it up for future cables
that are correctly assembled. YMMV


Use the usual techniques to reply via email.

Molon Labe!
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Old April 14th 04, 05:39 AM
Temporary FL@L&ER
 
Posts: n/a
Default

On Tue, 13 Apr 2004 12:34:45 GMT, "Dale Parfitt"
wrote:


wrote in message
...
I have an R-2000 and 830S by Kenwood.
Both radios do not receive when plugging in coax connectors into the
S0-239 receptacles. I've eliminated the cables as the problem. I
believe it is possible salt air corrosion internally in both radios.
The signals and noise drop out completely when screwing in the PL-259
connectors all the way in and tightening them down. When they are only
half way plugged in I get normal reception when wiggling the cable but
they are not screwed in completely and not making a good electrical
connection. I lived on the beach and sometimes would open the windows
for ocean breezes. The 830S was right next to the open window and the
R-2000 was sitting on a night table a few feet away from the open
windows. I've eliminated the cables themselves and suspect salt air
corrosion internally in both radios.

If it receives with the PL259 partially plugged in, how can the connector be
shorted? This a classic case of a shorted connector/cable/antenna.

W4OP

Could be the connector in the radio itself, the center pin connection
could have been enlarged by a poorly soldered PL259, thus expanding
the fingers in the connector. Had this problem on a Yaesu 757GX,
squeezed the fingers in via a knife blade, no further problems.
Always check the center conductor for solder on the outside of the
plug, it changes the diameter and can mess it up for future cables
that are correctly assembled. YMMV


Use the usual techniques to reply via email.

Molon Labe!
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