[BULK] - Re: [TowerTalk] 9913; Rotor loops

[Steve Katz]

> Of course, I personally don't know what the loss figures are for 
> connectors, and It's always been something of a mystery. I've heard 
> uniformed people mention out loud, about .5db per break, but I don't have
> a 
> clue.
> 
> ::Evidently, most don't.  You can't claim any particular loss per splice
> without specifying the frequency and materials used.  As I've demonstrated
> at too many radio club meetings and technical conferences to count, I can
> make twenty splices in a standard RG213/U cable using type N UG-21B/U
> connectors and double female N barrels (UG-29B/U) introducing <1.00 dB
> loss at 1 GHz; that's <0.05dB/fitting...at 1000 MHz.  Ditto the data using
> UHF type PL-259s and PL-258 barrels, if the frequency is adjusted down to
> 30 MHz.  A high quality UHF or N coaxial connector has no more loss, when
> properly installed, than an equivalent length of .405" diameter coaxial
> cable, using UHFs to about 300 MHz and Ns up to at least 3 GHz.  Keywords
> are "properly installed" and "high quality."  I've never seen anything
> remotely close to ".5 dB per break" (assuming a "break" is a pair of
> connectors, installed on the cable, and plugged into each other) at
> frequencies below 3 GHz. -WB2WIK/6
> 
> 
> 
> -Steve
> N1JFU
> 
> 
> 
>