BNC connectors rate high for convenience and low for performance, especially leakage performance.
BNC connector leakage typicallymeasures in the range from -25 to -50 dB vs -60 to -90 dB for N connectors. Any BNC connector that does not fit snugly should replaced and discarded 73 Frank W3LPL ----- Original Message ----- From: "Ron D'Eau Claire" <[email protected]> To: "Edward R Cole" <[email protected]>, "Elecraft Reflector" <[email protected]> Sent: Tuesday, April 4, 2017 2:12:03 AM Subject: Re: [Elecraft] K3 loss of rx signal Note that BNC connectors can easily handle a kW of RF power unless there is a high SWR on the line. They are rated for 500V. 73 Ron AC7AC -----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of Edward R Cole Sent: Monday, April 3, 2017 6:24 PM To: Elecraft Reflector Subject: Re: [Elecraft] K3 loss of rx signal Simple - use something better than PL-259's: I mainly use N connectors for low loss/high power and BNC for low power inside the shack connections. I also have TNC and sma connectors. Most connectors need a 1/4 turn beyond finger tight for reliable connections. Sure cure for loose connectors is heat shrink over them. Not only seals from wx but also loosening due to vibration. Want to see what vibration does? Install a radio in a D8 cat without some kind of vibration damping. I did long ago, and the Motorola 100w VHF radio was a cabinet full of loose parts after 8-hours running of the cat. Wonder why military radios are full of glyptol, or completely potted in plastic? 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: [email protected] ______________________________________________________________ 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 Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
