Well, to throw you all "out of whack," I used the 93ohm cable. There is no dielectric between the pin and shield. My micrometer will not get in that space very well, but it appears that the diameter is ~1.20mm. I have not noticed any "squirrely" problems so I'll keep it there for now.
Thanks again. 73, Joel - W4JBB On 9/17/2012 6:52 AM, David Moes wrote: > Yes there is a difference. But according to Amphenol spec sheet, "Two > distinct types of 75 Ω BNC's are available, and both mate with each > other and with 50 Ω BNC's. the difference is in the dielectric > This I doubt will be an issue at IF frequency. > > This is also backed up in the highly reliable Wikipedia article on BNC ;-) > > On 9/16/2012 11:11 PM, Alan Bloom wrote: >> Yes, the cable impedance does not matter but the connectors do. The >> 75-ohm cable probably has 75-ohm BNC plugs, which as I recall have a >> smaller pin. They might not make reliable connections with the 50-ohm >> sockets on the K3 and P3. >> >> Go ahead and try it, but if the connections seem flakey you should get a >> real 50-ohm cable. >> >> Alan N1AL >> >> >> On Sat, 2012-09-15 at 17:21 -0700, Jim Brown wrote: >>> On 9/15/2012 5:01 PM, Vic K2VCO wrote: >>>> Just try one of the non-50-ohm cables and see if it works >>> Cable impedance absolutely does not matter for such a short run at the >>> IF frequency. >>> >>> 73, Jim K9YC >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
