[Boatanchors] Coaxial cable question

[Robert Moses]

Not only is power handling capacity an issue, but you also need to 
consider that thinner coax tends to have higher losses. This is less of 
an issue for HF, but for UHF and microwave it is a very big issue for 
runs over a few feet. As a general rule use the biggest fattest coax 
that you can afford and keep the runs as short as possible. Your signal 
strength out and back will both be improved that way. Hardline is nice, 
but pricey! ;-)

RAY FRIESS wrote:

>I was just looking at a chart online of power ratings for coaxial cables since I'm putting up a new antenna.
>I was considering using RG 58 or 59 as the feedline instead of RG 8.  Since I will be using a linear, I wanted
>to check on the power ratings.
> 
>Is the chart correct in stating that RG 58 and 59 will handle a KW?  The chart gives that rating at 10 mhz.
>RG 8 rating is 1500 watts at 10 mhz.
> 
>If this is correct, I'll go with the 58 or 59 because I have a whole spool of those, but not as much of the 8. 		 	   		  
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