Re: [amsat-bb] RG-62 Cable (sources for)

["Deon Erwin" <zr1dq@xxxxxxx>]

A cable which works well in a network installation may not work that well
when you pass RF through it.  I used BNC+RG58 network cables to patch
equipment in the shack and experienced high SWR.  The problem was traced to
poorly crimped BNC connectors.

Of course, if you have control over the materials, tools and labour, there
should be no problem with crimped connectors at RF.  The computer network
people are usually not familiar with the conditions at RF and the
connectors they use are sometimes of a low grade and not adviseable to use
at RF.

My caution refers to pre-made cables for computer networks and if you lay
your hands on some good cable, rather replace the connectors with better
quality RF connectors.

Regards
Deon ZR1DQ

----- Original Message -----
From: Brunner, David <David.Brunner@Den.Galileo.com>
To: 'Christopher Cox' <cobox@urec.net>; Deon Erwin <zr1dq@qsl.net>; David
M. Tipton, PhD <tiptond@psi.com>
Sent: 11 July 2000 19:59
Subject: RE: [amsat-bb] RG-62 Cable (sources for)


| When I worked for Raytheon, installing FAA radar and such, I'd always
heard
| that a connector crimped *with the right tool* is just as good as, if not
| better than, a soldered one. We used the crimpers with the sliding jaws
and
| the interchangeable dies.
|
| YMMV...
|
| 73,
| David
| KE0AZ
|
| -----Original Message-----
| From: Christopher Cox [mailto:cobox@urec.net]
| Sent: Tuesday, July 11, 2000 5:33 AM
| To: Deon Erwin; David M. Tipton, PhD
| Cc: Amsat Reflector
| Subject: Re: [amsat-bb] RG-62 Cable (sources for)
|
|
|
|
|  > Beware of pre-made computer cables with connectors.  These
| connectors are
|  > usually crimped onto the cable and may cause problems at RF.
|  >
|  > Regards
|  > Deon ZR1DQ
|
|
| Interesting. I usually crimp on BNC connectors. Is there a
| 'diode' problem
| with this if the crimp is well done?
|
| Regards
|
| Christopher Cox
| KC8FRJ
|
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