[NLRS] SMA Connectors and UT cable

[Donn Baker]

Mike,
I have purchased .141 from DigiKey in the past, but couldn't find it in the
catalog just now.  I tend to buy it at CSVHF/Microwave Update... not new,
but OK.

Digi-key has E.F. Johnson connectors that I've used for years.  They use
the .141 center conductor as the center contact.  Easy to install, cheap,
readily available.

The ones I have are E.F. Johnson part number 141-0281-006.  However, when I
plugged that into the Digi-key web page (www.digikey.com), it returned
142-0694-xxx, where xxx is:
 -011 for gold, @ $1.29/1, $1.13/10, $0.98/50
 -016 for nickel, @ $0.89/1, $0.784/10, $0.6738/50 (I use the nickel).  
The Digi-key part number is J486-ND for nickel, 

If you follow the Technical/Catalog Information link, and then Datasheet,
you get a NICE datasheet with info on ALL of Johnson's SMA connectors.
This includes VSWR at any frequency (a formula); insertion loss (a
formula); breakdown for several cable types; etc.  Its worth the trip just
for the datasheet!

Hope this helps for you.

73 Donn WA2VOI/0


At 19:49 06-01-03 -0600, Mike King - KM0T wrote:
>Hi all,
>
>Looking for a good resource(s) for UT-141 and UT-085 semi-rigid hardline.
>Also for male connectors, the solder on nut and solder on pin type for both
>sizes.  I spent a good part of the weekend learning and making some of my
>first UT cables, not to bad!  Wonder why I did not do it before!
>
>I am also looking for specific attenuation figures.  I have looked around
>and found some general numbers, but I have yet to come across a manufacturer
>site stating the chracteristics.
>
>To be specific, I am looking for attenuation figures for 5.7 and 10 ghz on
>both cable types.
>
>I am aware of what Steve at DEMI has to offer, but I think I bought his last
>batch of .085 connectors.  So any other info helpful.  The RF connection
>also has some cable stuff too, but they call it RG-402 and RG-405.  I think
>thats the same stuff.
>
>If you have some around you want to part with, let me know too!
>
>I just got done wiring a 5.7 ghz 20 watt amp for my microwave tower, should
>be ready for the Jan Contest.  Now on to the next project.
>
>Also, just took my 10 ghz box down off the same tower to check it out to see
>how it has been fairing for the last 6 months.  Well there is water inside
>the waterproof box.  Go figure....now to track that down....it never seems
>to end :)
>
>73
>
>Mike - KM0T en13
>www.qsl.net/km0t
>
>
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