[Test-Equipment] Coax Attenuation and Power Handling Calculator

[Tom NØJMY - AAR7FV]

Pretty cool, Bill.  That loss is something a lot of people don't think 
about, yet IIRC, a half 20 meter dipole fed with 100' of open wire
will have, say, a 6:1 SWR, yet due to the low feedline loss, it will 
still radiate a dB or so more that it would if it was fed with RG-59 for 
a 2:1 SWR.  I may have some of the particulars off a little bit, but you 
can find the story and formulae in Ade Weiss's "The Joy of QRP".

73,
Tom

Bill Pancake wrote:

>I quite literally "stumbled" on a very cool web site that has an online calculator to help determine the attenuation and power handling capability of nearly any type of coax used today.  Thought I'd pass it on to the list.
>
>You can plug-in the coax type, frequency and cable length your interested in and the calculator does the rest. If you've ever wondered how much power a specific length of coax will handle and how much of that power will be lost in the cable, this online calculator does the trick! 
>
>Check it out at http://www.timesmicrowave.com/cgi-bin/calculate.pl.   73, Bill, wd0x
>
>
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