So a Pasterack bnc male to bnc male using 24" of RG58 is 23.90 + shipping Not so bad if it fixes the problem. Is it supposed to be rg58? Thanks
Sent from my iPhone On 2013-08-27, at 12:31 PM, George Danner <[email protected]> wrote: > Tom, > Try Pasternack or Bracke. > > I've used their patch cables from audio up to 18 GHz. Both manufacture have > quality components & assembly. Prepare yourself for sticker shock! Quality > does cost. > > For my P3, I made my jumper with a piece of old RG-58 and double crimp BNC > connectors. That solved my issue. As an early P3 user (first group of kits), > the issue was not yet identified. During my experimenting others had found > the solution. My experimenting indicated there was a ground loop due to poor > shield connections. The Elecraft cable was crimped to a foil/braid shield. > > BTW - Poor full shield connections were an issue identified many years ago > in broadcasting when we switched from UHF connectors to BNC connectors. The > full shield coax that used a foil were (are) especially prone to ground > loops by not having a good connection at both connectors. I'm sure there is > a way to use this cable with BNCs, but we were never successful. We quite > using foil coax & non-crimped shields about 30 years ago. Analog video in a > broadcast plant needs to pass DC to at least 6 MHz. > > 73 > George > AI4VZ > > > -----Original Message----- > From: Tom > Sent: Tuesday, August 27, 2013 12:06 PM > To: Bill > Cc: [email protected] > Subject: Re: [Elecraft] P3 Spurii and a cure. > > Huh, I just noticed I have them too. > So, given that regular cables don't always remove these, how does one build > a mil-spec bnc cable? > Tom > > Sent from my iPhone > > On 2013-08-27, at 9:43 AM, Bill <[email protected]> wrote: > >> Regarding the hump monster appearing on the screen of the P3: >> >> I had this to a severe degree with my P3 when I first put it into service. >> Here are the results of my quick tests: >> >> 1. humps vanish when the P3 has no patch cord attached to it. >> 2. using a different BNC patch cord from the P3 to the K3 caused the humps >> to vary in intensity: >> a. using a 20 year old mil-spec BNC patch cord removed the humps >> completely. >> b. using a replacement from Elecraft improved the situation with >> smaller humps. >> c. using a different replacement from Elecraft also reduced the humps. >> >> As a result of the above, I use my 20 year old mil-spec BNC patch cord and >> am very happy. >> >> Not a big deal to me, it was easily fixed, and I am very happy with my P3. >> >> Bill W2BLC a happy K-line owner >> >> ______________________________________________________________ >> 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 > ______________________________________________________________ > 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 > ______________________________________________________________ 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
