Wrong use of 75/50 ohm cables is a cause of unreliability on scopes: they're made for 75ohm connectors and if you plug in a 50ohm plug is will eventually splay the centre contact and cause intermittency.
David G3UNA Subject: Re: [Elecraft] [K3] [P3] IF Out / IF In Cable > 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
