msg <msg@_cybertheque.org_> hath wroth:
>Jeff Liebermann wrote:
>
>> Shotta_tav <(E-Mail Removed)> wrote
>
>>>does anyone knows where can i find tutorials or pictures on how to put
>>>on the ends on the llc coaxal cables..please
>
><snip>
>>>thanks in advance
>>
>>
>> You might want to reconsider thanking me. Soldering or crimping N
>> connectors requires some practice. You're almost certain to ruin a
>> few until you get it right. If crimped, you'll need to buy a crimping
>> tool.
><snip>
>Unless you are a jobber doing installations, you probably can't afford
>the crimp tool;
Cheapo crimpers are adequate (if properly used).
<http://802.11junk.com/jeffl/antennas/Misc/slides/crimpers.html>
<http://www.fab-corp.com/home.php?cat=281>
About $40/ea from numerous online sources. The HT-336G and HT-336R
will suffice for LMR-400 and smaller, including the common RG sizes.
LMR-600 and the larger sizes user more expensive tools, but match the
sizes of common electrical hex crimpers.
My most common screwup are dealing with the subtle differences between
the various grades of LMR-400. For example, rubberized (ultra-flex)
and plastic jacket (ultra-stiff) LMR-400 cable are slightly different
outside diameters, which require different connectors.
>consider locating a firm or person in your area that
>does installations and have your cable connectors crimped for a hopefully
>small fee.
Small fee? The N connectors cost me about $9/ea. It takes about 10
minutes per crimp, plus about 30 minutes finding all the junk needed
in the truck, dragging it into the office, getting setup, doing the
crimp, cleaning up the mess, throwing everything back into the truck,
and testing the result on a sweep generator and TDR. At $75/hr plus
the cost of replacing the overpriced razor blades in the stripper,
that's about $80 per cable (two connectors). You're better off buying
the crimpers.
Drivel: I loan my tools to the local hams for their projects. I know
it's risky, but the entertainment value of watching them struggle with
the connectors is worth the risk.
>Don't consider soldering; at these wavelengths you would
>need to be quite proficient to get a useful result.
Like crimping soldering takes practice and is easily mastered after
destroying the requisite amount of equipment. However, soldering is
not the problem. It's the UG-21b/u N connector:
<http://www.alliedelec.com/search/ProductDetail.asp?SKU=713-3311>
left over from WWII that is the problem. There are a few solder type
replacements, that work much better than this antique nightmare. It's
also made to works with RG-8/u type cables, which are very lossy at
2.4GHz and should only be used for short pigtails.
$24 for an antique N connector?
>Michael
--
Jeff Liebermann
(E-Mail Removed)
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060
http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558