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Why F-coax and phono jack connectors are considered to be inferior?

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A.Anand Srinivasan

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i found from one of the books that F-coax and the phonojack are considered inferior so i just wanna know the reasons and it would be better if i can get a picture of these
 

Re: connectors

Well, maybe in term of matching..coax impedance usually 50Ω.

System must mathced this in order to get full voltage transfers without reflected voltage.
 

Re: connectors

The so-called phono jack used in audio equipment is a nice lesson in bad design, because the inner conductor mates before the shield when you plug it in; furthermore, the design of the connector is such that both shield and center conductor tend to make poor contact. You've undoubtedly heard the results! Not to be outdone, the television industry has responded with its own bad standard, the type F coax "connector," which uses the unsupported inner wire of the coax as the pin of the male plug, and a shoddy arrangement to mate the shield.
Click to expand...
https://www.marine-electronics.net/techarticle/coax/f-con.htm

https://www.keyelco.com/products/prod56.asp?SubCategoryID=65
**broken link removed**

Regards,
IanP
 
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