In article , legg   
    wrote:   
      
   > You sure it's BNC?   
      
   No.  There are many coaxial connectors.   
   https://en.wikipedia.org/wiki/List_of_RF_connector_types   
   My knowledge is minimal and some statements here are speculative.   
   Corrections welcome.   
      
   I've posted a photo of four connectors.   
   https://easthope.ca/CoaxialConnectors.jpg   
   The photo isn't high resolution but suffices to show salient features.   
      
   Left to right in the photo.   
      
   (1) BNC to Lemo adapter with a Lemo patch cable connected.  Connects   
   to the Owon HDS2202S oscilloscope BNC connector.   
      
   (2) BNC to RCA with patch cable connected.  Connects to the scope.   
      
   (3)  BNC on the Hantek HT-25 automotive ignition pickup.  Connects to   
   the scope.   
      
   (4)  ?? on a patch cable marked ITT WIRE & CABLE DIV. RG-59/u COAXIAL   
   CABLE.  The protrusion of the white insulator prevents connection to   
   the scope.   
      
   > There is a similar HT connector that won't fit BNC hardware.   
      
   (4) appears to be an instance.  I don't see it in the Wikipedia list   
   and don't have a name for it.   
      
   Now fairly certain I can connect the Owon well enough to see   
   significant automotive ignition problems.   
      
   Thanks,                   ... P.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)