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Old October 27th 11, 10:41 PM posted to rec.radio.amateur.equipment
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Default Comet CAA-500 thread incompatibility

Well I thought of that too, was going to use a Type N as a replacement, but
decided against that line of action.

Make an adaptor? I am a fitter and machinist, and so had the appropriate
thread turning gear including a lathe, but an adaptor would be a very clumsy
way around the problem and thinking about it and figured that it may
interfere with the calibration, and once I opened the box, warranty is non
existent.

I also figured that if I sat on the information, many of you would not be
aware that there is a problem with the thread sizes.

73
Johnno


"Scott" wrote in message
.. .
I probably would have just opened up the box and put in an SO-239 jack.


On 10-26-2011 19:07, John Ferrell wrote:
I think I woulld have at least tried to fabricate an adapter.


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Old October 30th 11, 08:36 PM posted to rec.radio.amateur.equipment
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Default Comet CAA-500 thread incompatibility

Thank you for being considerate and passing the the info along.

I confess to taking the easy way out most of the time so I
automatically think of some kind of hack to manage a workaround.

I have used a a short length of copper tubing and a slightly longer
piece of 1/8" wire or brass tube to adapt worn out PL259's to quick
service. Slit the tube a little and squeeze it for fit. Sometimes use
a stainless hose clamp. Not a "fix" but a workaround for the moment.

Once upon a time a trustworthy manufacturer put out a bunch of PL259
male connectors with out of spec threads. In my case, the antenna
connectors sufferred the most.

Your way is of course, the best way for the future use.

On Fri, 28 Oct 2011 08:41:02 +1100, "Johnno"
wrote:

Well I thought of that too, was going to use a Type N as a replacement, but
decided against that line of action.

Make an adaptor? I am a fitter and machinist, and so had the appropriate
thread turning gear including a lathe, but an adaptor would be a very clumsy
way around the problem and thinking about it and figured that it may
interfere with the calibration, and once I opened the box, warranty is non
existent.

I also figured that if I sat on the information, many of you would not be
aware that there is a problem with the thread sizes.

73
Johnno


"Scott" wrote in message
. ..
I probably would have just opened up the box and put in an SO-239 jack.


On 10-26-2011 19:07, John Ferrell wrote:
I think I woulld have at least tried to fabricate an adapter.

John Ferrell W8CCW
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Old October 30th 11, 09:45 PM posted to rec.radio.amateur.equipment
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Default Comet CAA-500 thread incompatibility

Thanks for your encouraging reply John, I have since found out that the
Japanese call the PL-259 an "M" connector, and the metric version which I
believe is used universally in Japan is called the "M-J" connector.
Presumably the "J" for Japan.
73
Johnno.

"John Ferrell" wrote in message
...
Thank you for being considerate and passing the the info along.

I confess to taking the easy way out most of the time so I
automatically think of some kind of hack to manage a workaround.

I have used a a short length of copper tubing and a slightly longer
piece of 1/8" wire or brass tube to adapt worn out PL259's to quick
service. Slit the tube a little and squeeze it for fit. Sometimes use
a stainless hose clamp. Not a "fix" but a workaround for the moment.

Once upon a time a trustworthy manufacturer put out a bunch of PL259
male connectors with out of spec threads. In my case, the antenna
connectors sufferred the most.

Your way is of course, the best way for the future use.


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Old October 30th 11, 11:27 PM posted to rec.radio.amateur.equipment
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First recorded activity by RadioBanter: Jul 2006
Posts: 702
Default Comet CAA-500 thread incompatibility


"John Ferrell" wrote in message
...
Thank you for being considerate and passing the the info along.

I confess to taking the easy way out most of the time so I
automatically think of some kind of hack to manage a workaround.

I have used a a short length of copper tubing and a slightly longer
piece of 1/8" wire or brass tube to adapt worn out PL259's to quick
service. Slit the tube a little and squeeze it for fit. Sometimes use
a stainless hose clamp. Not a "fix" but a workaround for the moment.

Once upon a time a trustworthy manufacturer put out a bunch of PL259
male connectors with out of spec threads. In my case, the antenna
connectors sufferred the most.


I think about 10 or so years ago MFJ put out a lot of equipment, especially
their tuners that had the wrong for America threads on the SO-239s.

One would think that the companies would have corrected that by now.


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Old November 1st 11, 12:40 PM
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