BNC Special Connector

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BNC Special Connector

Paul Gates, KD3JF
I am wondering if there is such a BNC connector that
you can use for a center conductor on a dipole.  I
have a 50ft length of RG8X that has BNC connectors on
either end. Of course i could cut one connector off
and just solder the coax to the antenna but before i
do that thought I would check.

What I am trying to do is make up a 44' Dipole and
feed it with coax for portable work when I go to a
park, etc.


Paul Gates, KD3JF
K1  #0231
KX1 #1186
XG1


       
               
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RE: BNC Special Connector

Steven Pituch
 Hi Paul,
Go to the wireman at : http://thewireman.com/connpix6.html
Chasis connectors 1342 or 1343 are what I use.  This can be connected thru a
hole in your center insulator such as a piece of plexiglass or a PVC
fitting.

Radio Shack has it as 278-105.

Why don't you make the dipole 66 feet long (40 meters)?  With a center pole
you can use it as an inverted vee.

Regards,
Steve


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Paul Gates, KD3JF
Sent: Monday, October 03, 2005 7:29 AM
To: [hidden email]
Subject: [Elecraft] BNC Special Connector

I am wondering if there is such a BNC connector that you can use for a
center conductor on a dipole.  I have a 50ft length of RG8X that has BNC
connectors on either end. Of course i could cut one connector off and just
solder the coax to the antenna but before i do that thought I would check.

What I am trying to do is make up a 44' Dipole and feed it with coax for
portable work when I go to a park, etc.


Paul Gates, KD3JF
K1  #0231
KX1 #1186
XG1


       
               
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Re: RE: BNC Special Connector

Stephen W. Kercel
Hi Paul:

Another strategy would be to use a Wireman 1171 BNC-F to UHF-M connector
and a Wireman 801 dipole center. (Using a pair of Wireman 800 thimbles with
the 801 is highly recommended.)

That configuration plus a bit of weatherproofing (extensively discussed by
this group in the past) of the connectors will give you an antenna that
will last for years.

73,

Steve
AA4AK

At 07:44 AM 10/3/2005 -0500, Steven Pituch wrote:

>  Hi Paul,
>Go to the wireman at : http://thewireman.com/connpix6.html
>Chasis connectors 1342 or 1343 are what I use.  This can be connected thru a
>hole in your center insulator such as a piece of plexiglass or a PVC
>fitting.
>
>Radio Shack has it as 278-105.
>
>Why don't you make the dipole 66 feet long (40 meters)?  With a center pole
>you can use it as an inverted vee.
>
>Regards,
>Steve
>
>
>-----Original Message-----
>From: [hidden email]
>[mailto:[hidden email]] On Behalf Of Paul Gates, KD3JF
>Sent: Monday, October 03, 2005 7:29 AM
>To: [hidden email]
>Subject: [Elecraft] BNC Special Connector
>
>I am wondering if there is such a BNC connector that you can use for a
>center conductor on a dipole.  I have a 50ft length of RG8X that has BNC
>connectors on either end. Of course i could cut one connector off and just
>solder the coax to the antenna but before i do that thought I would check.
>
>What I am trying to do is make up a 44' Dipole and feed it with coax for
>portable work when I go to a park, etc.
>
>
>Paul Gates, KD3JF
>K1  #0231
>KX1 #1186
>XG1
>
>
>
>
>______________________________________________________
>Yahoo! for Good
>Donate to the Hurricane Katrina relief effort.
>http://store.yahoo.com/redcross-donate3/
>
>_______________________________________________
>Elecraft mailing list
>Post to: [hidden email]
>You must be a subscriber to post to the list.
>Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
>
>Help: http://mailman.qth.net/subscribers.htm
>Elecraft web page: http://www.elecraft.com
>
>--
>No virus found in this incoming message.
>Checked by AVG Anti-Virus.
>Version: 7.0.344 / Virus Database: 267.11.9/116 - Release Date: 9/30/2005
>
>
>--
>No virus found in this outgoing message.
>Checked by AVG Anti-Virus.
>Version: 7.0.344 / Virus Database: 267.11.9/116 - Release Date: 9/30/2005
>
>
>_______________________________________________
>Elecraft mailing list
>Post to: [hidden email]
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>Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
>
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RE: BNC Special Connector

Jess Gypin
In reply to this post by Paul Gates, KD3JF
You can buy a BNC to banana plug adapter, with connectors like you see on
the back of tuners.

Jess AE0CW

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]]On Behalf Of Paul Gates, KD3JF
Sent: Monday, October 03, 2005 6:29 AM
To: [hidden email]
Subject: [Elecraft] BNC Special Connector


I am wondering if there is such a BNC connector that
you can use for a center conductor on a dipole.  I
have a 50ft length of RG8X that has BNC connectors on
either end. Of course i could cut one connector off
and just solder the coax to the antenna but before i
do that thought I would check.

What I am trying to do is make up a 44' Dipole and
feed it with coax for portable work when I go to a
park, etc.


Paul Gates, KD3JF
K1  #0231
KX1 #1186
XG1




______________________________________________________
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Donate to the Hurricane Katrina relief effort.
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RE: BNC Special Connector

James Kern
Just use a panel mount BNC jack and some scrap plexiglass. I made the exact
same dipole that you describe. Simply drill a hole in the plexiglass for the
BNC jack and mount the jack. I also drilled a few holes for antenna strain
relief. You can get the BNC jack connector in any Radio Shack. It has solder
lugs for soldering the doublets to. Voila, no longer need to cut your coax.
73,

James Kern KB2FCV


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Jess Gypin
Sent: Monday, October 03, 2005 11:33 AM
To: Paul Gates, KD3JF; [hidden email]
Subject: RE: [Elecraft] BNC Special Connector


You can buy a BNC to banana plug adapter, with connectors like you see on
the back of tuners.

Jess AE0CW

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]]On Behalf Of Paul Gates, KD3JF
Sent: Monday, October 03, 2005 6:29 AM
To: [hidden email]
Subject: [Elecraft] BNC Special Connector


I am wondering if there is such a BNC connector that
you can use for a center conductor on a dipole.  I
have a 50ft length of RG8X that has BNC connectors on
either end. Of course i could cut one connector off
and just solder the coax to the antenna but before i
do that thought I would check.

What I am trying to do is make up a 44' Dipole and
feed it with coax for portable work when I go to a
park, etc.


Paul Gates, KD3JF
K1  #0231
KX1 #1186
XG1




______________________________________________________
Yahoo! for Good
Donate to the Hurricane Katrina relief effort.
http://store.yahoo.com/redcross-donate3/

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Re: BNC Special Connector

Vic K2VCO
In reply to this post by Paul Gates, KD3JF
Paul Gates, KD3JF wrote:

> What I am trying to do is make up a 44' Dipole and
> feed it with coax for portable work when I go to a
> park, etc.

It's possibly less of a concern for a portable antenna, but in general
it's important to make sure the center connection is waterproof.
Although BNCs are supposedly waterproof if assembled correctly, it's a
good idea to cover the connector with liquid electrical tape or similar
waterproofing material.

If you just strip the ends of the coax, it's even more critical.  The
problem is that water is pulled into the coax braid by capillary action.
  It can go quite far in time!  The copper braid then corrodes, greatly
increasing the attenuation.

Personally I wouldn't bother with the connector.  It's another possible
failure point and extra weight.  I'd just make a center insulator out of
a piece of plastic, drill holes in it to allow the coax to be attached
with cable ties, solder all the connections and waterproof the heck out
of everything.

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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Re: BNC Special Connector

Tom Hammond-3
In reply to this post by Paul Gates, KD3JF
Hi Paul:
At 07:29 AM 10/3/2005, Paul Gates, KD3JF wrote:

>I am wondering if there is such a BNC connector that
>you can use for a center conductor on a dipole.  I
>have a 50ft length of RG8X that has BNC connectors on
>either end. Of course i could cut one connector off
>and just solder the coax to the antenna but before i
>do that thought I would check.
>
>What I am trying to do is make up a 44' Dipole and
>feed it with coax for portable work when I go to a
>park, etc.

In fact, there is! Though it was originally developed for KT5X to use at a
center insulator on his Moxon beams, it should work quite well for a
short-duration dipole insulator. Since I cannot include ATTACHMENTS in
e-mail sent via this reflector, I will put up the illustration of the
insulator on my web site at www.n0ss.net in the "QRP Related Stuff" section
(bottom of main page). Just go to the web site and then click on the Quik
Link for "QRP Related Files". That'll take you down to the section which
contains the file "Packpacker's BNC-Attached-Coax Dipole Center Insulator".
There are two images on the PDF. The first one is 2X and shown the BNC
connector outline for reference, The 2nd image is 1X.

I'll be happy to supply B&W masters if you wish to make your own board and
need to have a negative made. I can probably also provide some a limited
supply of etched and drilled PC boards.

73,

Tom   N0SS

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Re: BNC Special Connector

Leigh L. Klotz Jr WA5ZNU
Administrator
How about the $10 Pomona 1296 connector?  Or 50ft of twinlead instead
and then use the Pomona connector or a BL1 at the rig?
Leigh / WA5ZNU
wrote:
> I am wondering if there is such a BNC connector that you can use for a
> center conductor on a dipole. I have a 50ft length of RG8X that has BNC
> connectors on either end.
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Re: BNC Special Connector

Graham Haddock
Check out:

http://electronicsusa.com/mk6667.html

--- Graham / KE9H

==

Leigh L Klotz, Jr. wrote:

> How about the $10 Pomona 1296 connector?  Or 50ft of twinlead instead
> and then use the Pomona connector or a BL1 at the rig?
> Leigh / WA5ZNU
> wrote:
>
>> I am wondering if there is such a BNC connector that you can use for
>> a center conductor on a dipole. I have a 50ft length of RG8X that has
>> BNC connectors on either end.
>
> _______________________________________________
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>
>


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