[TowerTalk] Re: [HomeBrew] UHF connector ratings?

[Pat Barthelow]

	A definitive (hot power) investigation was made by Gray, Frierson,
Haertig 
ghf@haertig.com  Check with them.....

Some of their data:


Using a KW (!) source signal:

Loss as listed:


FREQ	LOSS, WATTS, Loss, DB

.1 mhz:    1 watt, .004 db loss

1 mhz	1.2 watts, .005 db loss

10 mhz	1.3 watts, .005 db loss

20 mhz	1.5 watts,  .006 db loss


100 mhz	2.6 watts, .01 db loss

400 mhz 7 watts,  .03 db loss

1ghz,  15 watts, .06 db loss;

Connector failed at 1750 mHz, at a KW, due to heating



73, DX de Pat, AA6EG/N6IJ 
"The Contest Station from the Government"

Marina Amateur Radio Contest Station; N6IJ
599 DX Drive
Marina CA 93933

aa6eg@tmx.com

On Sun, 14 Jun 1998, Ray LaRue wrote:

> A friend of mine asked the following question.  Anyone offer any
> references on the subject?
> 
> "Does anyone have any definitive data which plots PL-259/SO-239
> "UHF"
> coax connector losses against frequency?  Most ARRL texts say
> this type
> of connector should not be used above about 220 MHz because it
> does not
> exhibit a constant 52 Ohm impedance.  However, I can find nothing
> in my
> library stating how much loss might be expected if they are used
> anyway.  Any ideas?"
> 
> Your attention is appreciated.
> 73,
> Ray, W4BYG
> 
> 
> 
> 
> ----
> Submissions: homebrew@qth.net
> 


--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm