XPost: uk.radio.amateur   
   From: Rambo@thisaintreal.org   
      
   On Sat, 19 Aug 2017 16:53:49 +0100, "Jimbo"   
    wrote:   
      
   >   
   >"Rambo"  wrote in message   
   >news:6slgpclvlactn7os9fvqgsqt4ishia8qtl@4ax.com...   
   >> On Sat, 19 Aug 2017 15:35:41 +0100, "Jimbo"   
   >>  wrote:   
   >>   
   >>>   
   >>>"Ian Jackson"  wrote in message   
   >>>news:1M0ZGuBgmCmZFwJs@brattleho.plus.com...   
   >>>> 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.   
   >>>>   
   >>>> And mixable!   
   >>>>>   
   >>>>>   
   >>>>>   
   >>>I got a load of weird connectors and adaptors from a guy that worked at   
   >>>the   
   >>>sub base at New London in 1979 ...still using them ......   
   >>>   
   >> Type 43 connector?   
   >   
   >no idea  ... oh was that a submarine joke? ....   
   >   
   No it's a coax connector   
      
   http://www.servicepower.co.uk/category/co-axial/type-43-connectors/   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)