short BNC to BNC cable assembly, where to get?

[Jim Spears]

Is there a source of short, 6" or so male BNC to BNC cable assemblies out
there?  These would be used to mount the 6m pre-amp under my K3 as discussed
recently.  

 

Jim/N1NK

K3/100 #2295

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[George & Jan]

Jim,
Try www.pasternack.com/
They are a bit pricy but you do get what you pay for.
PE3020-6 is a 6" RG-58  BNC male to BNC male with one end using a right
angle connector the other a straight.

You can use the coax cable wizard to find (or customize) almost any cable
assembly you need.


Is there a source of short, 6" or so male BNC to BNC cable assemblies out
there?

George
AI4VZ

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[Bob-270]

Hi Jim,

             Sure, Pomona makes them.  Here:

http://www.pomonaelectronics.com/index.php?i=prodsub&parent=RFCABLE&cat=BCNCABLE&getDetails= 
<http://www.pomonaelectronics.com/index.php?i=prodsub&parent=RFCABLE&cat=BCNCABLE&getDetails=>

            Just scan down and download the PDF that will list the available
lengths.  You may find a distributor local to you.

73,
Bob
K2TK

On 1/6/2011 8:24 AM, Jim Spears wrote:

> Is there a source of short, 6" or so male BNC to BNC cable assemblies out
> there?  These would be used to mount the 6m pre-amp under my K3 as discussed
> recently.
>
>
>
> Jim/N1NK
>
> K3/100 #2295
>
>

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[Don Nesbitt-2]

Try Allen Bond at: http://www.mgs4u.com/index.html He is local in the Atlanta area and usually has a box of surplus BNC jumper cables in various sizes at our hamfests.  Drop him an email.  Great guy! Enjoy -- 73 es gud dxing -- Don N4HH

>
> SNIP
>  
>Is there a source of short, 6" or so male BNC to BNC
>cable assemblies out there?
>
>George
>AI4VZ
>
> SNIP

     
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[Johnny Siu]

The wiring of PR6 is really a mess.  Could it be installed inside K3 as there are internal spare space.

Johnny Vr2xmc

Sent from my  iPhone 4

"Jim Spears" <[hidden email]> 於 2011年1月6日 下午9:24 寫道：

> Is there a source of short, 6" or so male BNC to BNC cable assemblies out
> there?  These would be used to mount the 6m pre-amp under my K3 as discussed
> recently.  
>
>
>
> Jim/N1NK
>
> K3/100 #2295
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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[K6LMP]

I suspect the answer is "it depends." I'm sure I could fit an equivalent volume inside my K3, but I don't have the ATU or the subreceiver or the 100 watt amplifier installed. Could you fit the pre-amp inside the K3 if all those options were installed?  I don't know, but if it were easy, I suspect that Elecraft would have done it.

The proposed modification also would require I re-engineering the KXV-3 Receive Antenna/IF Out/Xverter interface module to allow an "internal" RF connection for the PR-6.  As to the difficulty and cost of doing so, I can't say for sure. My guess is that you'd have to enlarge the module PC board to accommodate a second set of RF connectors (whether BNC or SMA or ???) I presume it wouldn't be too difficult to provide an "internal" power source for the module.  


Lew K6LMP



On Jan 6, 2011, at 7:25 AM, vr2xmc wrote:

> The wiring of PR6 is really a mess.  Could it be installed inside K3 as there are internal spare space.
>
> Johnny Vr2xmc

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[Jim Spears]

Taken care of by a fellow Elecrafter.  Thanks for the additional generous
responses.

 

Jim/N1NK

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[K6LMP]

I have found a very neat way to connect my PR-6 to the external antenna connectors on the K3.  

Max-Gain Systems (www.mgs4u.com)) offers a great deal (pack of 5 for $2) on SMA M-M U-shaped coax jumpers. Here's the web site description:  "These brand new super low loss jumpers are made to mil spec by Amphenol, and are packaged in sealed bags of 5 jumpers per bag. Connectors are gold plated / Teflon SMA males (both ends). Cable is 50 ohm semi-rigid hardline of .141 inch  diameter. Both ends of the cable are formed in a radius.  Length across the longest portion (top) is 3.25 inches (center to center of SMA connectors. Length of short end is  about .875 inch. Length of long end is about 1.625 inch." Photo of this product is on their web site at:

http://www.mgs4u.com/RF-Microwave/coaxial-cables.htm  (scroll down to bottom of page).

I have used two of these (quite rigid) jumpers, fitted with SMA female-BNC male adapters (also available from Max-Gain) to connect my PR-6. The slightly "lop-sided" U shape is perfect for tucking the PR-6 under the K3. The PR-6 is positioned in such a way that the rear end of the K3 sits on top of the PR-6 with the rear rubber feet about 3/16" up in the air. I find this desirable, as it slightly reduces the angle when the K3 sits on its wire bail stand. The coax jumpers sit at an angle (non-horizontal), positioning the PR-6 very near the center of the K3, about 1/2 inch forward from the rear of the K3 cabinet. If one were troubled by having the K3 sitting directly on the PR-6, one could put slightly larger rubber feet on the K3.

I've played with numerous alternatives to get the PR-6 "out of the way" and not projecting off the back end of the K3.  This is the best solution I've found.

73,

Lew K6LMP

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