[Elecraft] BNC Connectors

[Radio Amateur N5GE]

On Wed, 27 Jan 2010 22:35:35 -0800, Brett Howard
<brett at livecomputers.com> wrote:

Using the Times Microwave Attenuation and Power Handling Calculator
Downloadable from: http://www.timesmicrowave.com/cable_calculators/,
I found that RG58 standard coax has .15dB attenuation at a length of
1.5 feet.

If one were using this as a jumper between a Transverter or Rig and an
Amplifier the loss would be acceptable, but not as a hook up from the
amp to a feedthrough connector in the wall or something like that. The
power handling capability of an eighteen inch piece like that is only
130 watts.

Tom, N5GE

n5ge at n5ge.com
K3 #806 with SUB RX, K3 #1055, PR6,
XV144, XV432, KRC2,
W1, 2 W2's and other small kits

1 K144XV on order

http://www.n5ge.com
http://www.swotrc.net 

>I've done a good portion of building a K2, and completely built a K1...
>But amazingly enough I've never solder terminated a coax link...  I
>guess I've always preferred the look of professionally terminated
>cabling.  But now I need a few simple short patch cables.  In the shack
>I have a decent amount 60+ foot or so of RG58/U and then around 120 foot
>or so of RG58/AU...  Pretty much seems about to be the same stuff with
>one stranded center and the other solid center conductor.  I feel for HF
>use this coax should be ample for a few 18" patches... Anyone disagree?
>I may end up using these for VHF as well but doubtful I'd do much of
>anything over 150Mhz.  I'm not married to using the cordage that I have
>on hand but it would be nice to be able to use that stuff....  If there
>is something that would fit better feel free to advise.  (I've always
>been a fan of RG-8x for HAM use and I use RG-217 or better at work
>always but like I said I'm not terminating those myself...)
>
>I've attempted to do this with PL-259 connectors before and was
>unsuccessful (but I tried to use a less than optimal soldering iron and
>it took too long to get things hot and I ended up with a short in the
>end).  I've now bought an adequate dual temp weller gun and should have
>better success.  
>
>So I guess for the next real question where would one recommend to get
>PL-259 and BNC connectors for this job.  Should I go for solder on or
>crimp on?  I'm more than willing to spend the money for a good crimp
>tool if need be and its a better option.  
>
>Anyway I'm open to recommendations as to where one should procure the
>connectors as well as any tips, tricks, and opinions on what I should
>use (so long as the opinions come with explanations). ;)
>
>Thanks kindly gentlemen.
>
>~Brett (KC7OTG)
[snip]