XPost: uk.radio.amateur   
   From: headstone255.but.not.these.five.words@yahoo.com   
      
   On 19/08/2017 13:05, Ian Jackson wrote:   
   > In message , Gareth's Downstairs Computer   
   >  writes   
   >> On 19/08/2017 10:34, Jimbo wrote:   
   >>>> sexes).   
   >>>    when I was newly licensed and poor I used 75 ohm TV coax and   
   >>> belling lee   
   >>> connectors on HF and got away with it .......   
   >>>   
   >>   
   >> And it was standard on 145MHz. (QQV03-10 anyone?)   
   >   
   > Actually, the original B&L connector is a pretty good 75 ohm match up to   
   > 1GHz and more. If I remember correctly, many 50 ohm BNCs are not so hot   
   >  >500MHz. With 75 ohms, the problem is maintaining the structural return   
   > loss constant while having enough PTFE insulation to hold the pin in   
   > place. Some are only really good to around 200Mhz. Of course, for most   
   > purposes, both are usable to much higher frequencies.   
   >   
      
   The N connector was designed by Neill, the C by Concelman, and they got   
   together to create the BNC and TNC.   
      
   But the _REAL_ reason that the N connector is so called is because there   
   are N different ways to assemble it, and all of them wrong!   :-)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)