Question... has anyone ever heard of or used pure
silicone grease in coax connectors to protect against
moisture and corrosion?
I have been using it for many years with no problems. The longest
undisturbed SO235/PL259 joint was 11 years at the top of a 60' tower
and when opened it was
I'm learning some good stuff on this subject.
Question... has anyone ever heard of or used pure
silicone grease in coax connectors to protect against
moisture and corrosion?
=
73,
Mark Baugh
W5EZY
Grenada MS
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Bob, G3VVT wrote:
Yes, it does work.
However there is a downside in that the silicon grease prevents most kinds
of tape adhesive sticking to the connector for providing external weather
proofing. The only exeption to this may be the greased fabric tape (Denso
tape)
used in waterproofing
On Tue, Feb 15, 2005 at 06:32:04AM -0800, Mark Baugh wrote:
I'm learning some good stuff on this subject.
Question... has anyone ever heard of or used pure
silicone grease in coax connectors to protect against
moisture and corrosion?
I recall that Cushcraft supplies a small amount of what
I have not knowingly used silicone grease on coax connectors, but would
discourage liberal use of the stuff. Silicone grease has its place, but if
I were using it, I would only suggest a little dab on the center conductor.
The stuff migrates everywhere and few things will stick to it, so one
Subject: RE: [Elecraft] N fittings
| I'm learning some good stuff on this subject.
| Question... has anyone ever heard of or used pure
| silicone grease in coax connectors to protect against
| moisture and corrosion?
|
| =
| 73,
| Mark Baugh
| W5EZY
| Grenada MS
, 2005 5:17 PM
Subject: Re: [Elecraft] N fittings
On Tue, Feb 15, 2005 at 06:32:04AM -0800, Mark Baugh wrote:
I'm learning some good stuff on this subject.
Question... has anyone ever heard of or used pure
silicone grease in coax connectors to protect against
moisture and corrosion
My understanding of the place to place silicon grease is NOT upon the
outside of the connector, but rather in the interface between male and
female connectors. The idea is to exclude moisture pooling on the insulator
between the center pin and the outer shell conductor.
However, if you over wrap
In a message dated 15/02/05 21:20:57 GMT Standard Time,
[EMAIL PROTECTED] writes:
My understanding of the place to place silicon grease is NOT upon the
outside of the connector, but rather in the interface between male and
female connectors. The idea is to exclude moisture pooling on the
On Feb 14, 2005, at 8:09 AM, Steve Jackson wrote:
Yes. I also run (nearly) 100% N connectors at my
station. On my KPA100 I simply replaced the supplied
SO-239 output connectors with N female connectors.
They are the same dimensions, mounting holes, etc.
SO-239/PL-259 connectors sure get a
Bill Coleman wrote:
N connectors, while constant impedance, have their own problems. Biggest
of which is the disconnection of the center conductor when the coaxial
cable becomes very cold and shrinks.
In Finland N-connectors were used in mobile network antennas in towers
for many years.
Rosenthal [EMAIL PROTECTED]
To: elecraft@mailman.qth.net
Sent: Monday, February 14, 2005 6:00 PM
Subject: Re: [Elecraft] N fittings
Bill Coleman wrote:
SO-239/PL-259 connectors sure get a bum rap. They have negligible loss
up to at least 150 MHz, and are relatively low-loss even to 500 MHz.
I
Rolf Moberg wrote:
N is ofter water tight. Can you find PL-259 which can be put into water
for 24 hours? And get adequate return loss measurement results afterwards?
Also Rolf, with unprotected PL-259 connectors water / moisture can get into
the coax's braid and you don't know that you have
What is the actual power handling capability of an N vs the so239./pl269 ???
Is it all related to the heat dissipation of lossy connection ???
I just got a nice 6 x 3 matrix switchwith VERY nice N connectors.
So it's either change the connectors , or change the connectors..
Geoffrey Mackenzie-Kennedy wrote:
Rolf Moberg wrote:
N is ofter water tight. Can you find PL-259 which can be put into water
for 24 hours? And get adequate return loss measurement results afterwards?
Also Rolf, with unprotected PL-259 connectors water / moisture can get into
the coax's
N conn 300Wtts at 1Ghz
PL259 500Wtts at 300Mhz
But i guess everthing changes with missmatch:(
S55M-Adi
- Original Message -
From: Bill NY9H [EMAIL PROTECTED]
To: Elecraft Discussion List elecraft@mailman.qth.net
Sent: Monday, February 14, 2005 9:43 PM
Subject: Re: [Elecraft] N
In a message dated 14/02/05 19:51:09 GMT Standard Time, [EMAIL PROTECTED]
writes:
The good quality N connector (the type with ground flange) is much more
reliable and mounted with 25Wtts soldering iron in few minutes .
If you wish to spend the money,
Vic Rosenthal wrote:
Part of correctly installing a PL259 outdoors is waterproofing it! I have
used
both coax seal (for those who don't know, a gummy rubber-like substance)
and
regular electrical tape coated with liquid electrical tape, with
success.
Quite agree Vic, which is why I said
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