Hah, don't we all. I look at the physical connector whenever I'm doing a
layout. I used to be able to see the tiny, virtually invisible numbers
that most of them have molded into the plastic. I can't see them anymore. :)
I've conveniently managed to forget all the layouts I screwed up with
w...@quackers.net said:
Hah, don't we all. I look at the physical connector whenever I'm doing a
layout. I used to be able to see the tiny, virtually invisible numbers that
most of them have molded into the plastic. I can't see them anymore. :) I've
conveniently managed to forget all the
Another nifty product from 3M is their cold shrink tubing. It is a rubber tube
stretched over a peel-able spiral core. You insert the tube over the
cable/connector and peel out the core. The rubber shrinks down over the cable
and forms a tight seal. It is typically used on buried cables. I
measurement time-nuts@febo.com
Sent: Saturday, 13 April 2013, 19:56
Subject: Re: [time-nuts] Connectors
OK, so we seem to have:
1) Scotch 130 rubber tape
2) Scotch 33 electrical tape
3) Scotchkote
in that order.
So the rubber tape waterproofs
the connection and the scotch kote
protects it from
...@blackmountainforge.com
To: n...@verizon.net; 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Sent: Sunday, 14 April 2013, 3:08
Subject: Re: [time-nuts] Connectors
Kind of a cool technology -- they bombard the outside of the tube with an
electron beam that cross-links the polymer
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Connectors
Sorry, not neoprene but self-sealing polyisobutyl tape, very effective for
the outdoor antenna work**. I have recently opened a sealed connection,
after 10 years, and the protected connector appears as new
of outside cable work.
Rob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]
On
Behalf Of Azelio Boriani
Sent: 12 April 2013 14:00
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Connectors
Sorry
OK, so we seem to have:
1) Scotch 130 rubber tape
2) Scotch 33 electrical tape
3) Scotchkote
in that order.
So the rubber tape waterproofs
the connection and the scotch kote
protects it from UV, so what does
the electrical tape do?
Or maybe, the electrical tape does
the waterproofing and
Can someone in the know clarify this?
I'm not in the know.
Several years ago, I found a short chunk of coax that the cable TV guys had
left on the ground. It included a piece of heavy wall shrink tubing. There
was a layer of sticky goop between the coax and the shrink tubing.
--
These
Rick
It is a very rare time I get to answer you.
The plastic tape holds the rubber end initially, adds another layer of wx,
and in reality is sacrificial to UV over the years. First the liquid rubber
gives up. Then the plastic. Thats a big clue when it gets ratty. Time to
change. Fact is even at
On Sat, 13 Apr 2013 14:07:05 -0700, Hal Murray
hmur...@megapathdsl.net wrote:
Can someone in the know clarify this?
I'm not in the know.
Several years ago, I found a short chunk of coax that the cable TV guys had
left on the ground. It included a piece of heavy wall shrink tubing. There
Think of heat shrink with a layer of hot melt glue on the inside. Such stuff is
used in most outdoor and especially underground utility wiring. Shrink the
tubing and it melts the glue and the contracting tubing forces the glue into
every crevice making a great waterproof splice.
On
Yes its from the heat shrink.
When they shrink the wrap it forms an air proof seal.
Regards
Paul
WB8TSL
On Sat, Apr 13, 2013 at 5:07 PM, Hal Murray hmur...@megapathdsl.net wrote:
Can someone in the know clarify this?
I'm not in the know.
Several years ago, I found a short chunk of coax
...@febo.com
[mailto:time-nuts-boun...@febo.com] On Behalf Of Peter Gottlieb
Sent: Saturday, April 13, 2013 15:24
To: time-nuts@febo.com
Subject: Re: [time-nuts] Connectors
Think of heat shrink with a layer of hot melt glue on the
inside. Such stuff is
used in most outdoor and especially
On Sat, Apr 13, 2013 at 6:58 AM, brent evers brent.ev...@gmail.com wrote:
Scotchkote! Yes - Thank you for the correction! The other could lead to
disaster!
Nope - not ex-navy. Its pretty standard practice in the offshore world.
My time was spent on research vessels down in Antarctica.
I
Hi
The fancy F connectors are indeed waterproof if:
1) You have the right cable
2) The cable and connector match up
3) The tool and the connector match up
The auction sites are a great place to get samples of connectors and tools that
apparently work with no known cable …
If you are not
Sorry, not neoprene but self-sealing polyisobutyl tape, very effective for
the outdoor antenna work**. I have recently opened a sealed connection,
after 10 years, and the protected connector appears as new.
On Fri, Apr 12, 2013 at 2:38 PM, Azelio Boriani azelio.bori...@screen.itwrote:
I use
of precise time and frequency measurement
Subject: Re: [time-nuts] Connectors
Sorry, not neoprene but self-sealing polyisobutyl tape, very effective for
the outdoor antenna work**. I have recently opened a sealed connection,
after 10 years, and the protected connector appears as new.
On Fri, Apr
Yes, I use those compression types, too, for example
http://www.reichelt.de/F-Anschluss/IK-FKPS-49/3/index.html?;ACTION=3;LA=446;ARTICLE=87371;GROUPID=3538;artnr=IK+FKPS+49
Of course, everything has to match, the cable, the connector, the
pliers. Be careful with the inner conductor. It's good
Of Azelio Boriani
Sent: 12 April 2013 14:00
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Connectors
Sorry, not neoprene but self-sealing polyisobutyl tape, very effective for
the outdoor antenna work**. I have recently opened a sealed connection,
after 10
brent evers wrote:
BTW - 3M Scotch rubber tape is regularly used in the offshore industry to
make waterproof connections to 6000m/10,000psi. I use it on any/all
outdoor signal (RF/Microwve antenna connectors, amphenol, etc) connectors
as well. I cover the rubber tape with a layer of
and frequency measurement
Subject: Re: [time-nuts] Connectors
Sorry, not neoprene but self-sealing polyisobutyl tape, very effective for
the outdoor antenna work**. I have recently opened a sealed connection,
after 10 years, and the protected connector appears as new.
On Fri, Apr 12, 2013 at 2:38 PM
On 4/12/2013 1:58 PM, Rick Karlquist wrote:
What are you referring to as scotchguard? I thought that was
a discontinued waterproofing spray for fabric. You must be talking
about something else.
He may have meant Scotchkote, as in Scotchkote Electrical Coating FD.
BTW, Scotchgard is used for
Ohhh man. Yes wrong product ScotchKote.
Regards
Paul
On Fri, Apr 12, 2013 at 2:48 PM, Mike S mi...@flatsurface.com wrote:
On 4/12/2013 1:58 PM, Rick Karlquist wrote:
What are you referring to as scotchguard? I thought that was
a discontinued waterproofing spray for fabric. You must be
-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Azelio Boriani
Sent: 12 April 2013 14:00
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Connectors
Sorry, not neoprene but self-sealing polyisobutyl tape, very effective
Actually though I spelled it wrong I did have the right product.
Regards
Paul
WB8TSL
On Fri, Apr 12, 2013 at 3:31 PM, paul swed paulsw...@gmail.com wrote:
Ohhh man. Yes wrong product ScotchKote.
Regards
Paul
On Fri, Apr 12, 2013 at 2:48 PM, Mike S mi...@flatsurface.com wrote:
On
I use neoprene tape to make really water tight connections for all type of
connectors.
On Fri, Apr 12, 2013 at 1:27 PM, Bob Camp li...@rtty.us wrote:
Hi
The fancy F connectors are indeed waterproof if:
1) You have the right cable
2) The cable and connector match up
3) The tool and the
sorts of outside cable work.
Rob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Azelio Boriani
Sent: 12 April 2013 14:00
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Connectors
Sorry
Hi,
Not too long ago there was an interesting discussion here about RF
connectors. I have always wondered about the F connector - used by
the boxload in TV distribution.
Are they any good for anything else? Just curious. Thanks.
Steve - N8MYA
___
Steve,
Several of them smashed flat, stacked up, and jammed under a door make a
low-quality door stop...
Steve
WB0DBS
On Apr 11, 2013, at 11:10 AM, steve gunsel st...@sgteq.com wrote:
Hi,
Not too long ago there was an interesting discussion here about RF
connectors. I have always
The quality varies a LOT. The good ones are the water proof ones they
use outdoors. They are made to fit RG6 quad shielded cable and must
be installed with a special tool. They are 75 ohm connectors.
There are also many junk f-connectors used with rg58 and rg59.
On Thu, Apr 11, 2013 at
They're half decent 75 ohm connectors out to about a GHz if you do that.
On Thu, Apr 11, 2013 at 10:10 AM, steve gunsel st...@sgteq.com wrote:
Hi,
Not too long ago there was an interesting discussion here about RF
connectors. I have always wondered about the F connector - used by the
useful and I use them at hf for rcving antennas and such. The quality is
all over the place but have used them up to 2 Ghz on occasion.
Regards
Paul
WB8TSL
On Thu, Apr 11, 2013 at 12:39 PM, Robert Darlington
rdarling...@gmail.comwrote:
They're half decent 75 ohm connectors out to about a GHz
Hi Steve:
Many GPS receivers are designed with Type-F RF inputs in order to make use of
the low cost TV coax.
But even if a GPS receiver has a 50 Ohm RF input you can still use 75 Ohm feed
line, see my low cost 4-way splitter:
http://www.prc68.com/I/4GPS.shtml
For most hobbyist use (nano
The F connector makes up an extremely cheap connection for TV and satellite
broadcast antenna cable. I use it even for my GPS antenna cable but I'd
rather not recommend it when a stable and repeatable connection is needed.
On Thu, Apr 11, 2013 at 6:10 PM, steve gunsel st...@sgteq.com wrote:
Hi,
On Thu, Apr 11, 2013 at 11:49 AM, Brooke Clarke bro...@pacific.net wrote:
Hi Steve:
Many GPS receivers are designed with Type-F RF inputs in order to make use
of the low cost TV coax.
But even if a GPS receiver has a 50 Ohm RF input you can still use 75 Ohm
feed line,
Yes they work but more
Greetings,
I have used the longitudinal compression F connectors for some time now with
several GPS units and RG-6 cable. They certainly appear to be waterproof
and quite sturdy. Not inexpensive but very serviceable. I found a kit with
the installation tool and connectors and separate
John Allen wrote:
A few notes about the connector.
First, I hate BNC connectors.
But the BNC is useable to 11 GHz (No vswr spec.), and has a VSWR spec. of 1.3:1
up to 4 GHz. (See link below, about half way down the page.)
http://www.amphenolrf.com/products/bnc.asp?N=0sid=4BAAA780568BE17F;
Hi John:
When HP came out with the first VNA (8410) I attended one of the demos.
Part of that was testing a BNC cable over the microwave range. It
worked much better than I expected. It turns out that the cores of a
type-N, TNC and BNC connector are all the same and they will properly
Hi Broke,
I think it stays not to discussion, that a better BNC can be usable up to
some GHz, but the longtime life cycle is ( through often using impedance
changings/unsure contacts) _I think_ clear worser as TNC/N...
Have good time!
(Im over longtime time-nuts reader )
Karesz
2010/3/26 Brooke
I have ten-pin female connectors for the LPRO Rubidium Oscillators. The cost
for two connectors, postage paid in the US is $2.50.
If you use these connectors, don't use too much heat and use small wires;
there are a lot of pins in a small area.
I will accepts checks and PayPal ([EMAIL
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