On Wed, 27 Jan 2010 22:35:35 -0800, Brett Howard <[email protected]> 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 [email protected] 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] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
