[TowerTalk] question on coax

[J. Hector Garcia XE2K]

Mark:

If you have 300 ft cable lenght in mind,  LMR 400 will put in you antenna 73.089 W   putting 100 from your radio.( 1.361 Dbs loss @14Mhz)

i think the best is to have at most 1 Db loss in the feed line

check this page and have your own idea what is best.    http://www.ocarc.ca/coax.htm 

if you can get  7/8 or 3/4  inch 75ohms cable for free (but GOOD or new  not yunk old cable) adjust to 50ohms at 20m 

Here other option

http://fermi.la.asu.edu/w9cf/tran/

i will recomend the low loss cable you can  buy  







On 05 Oct 2005 12:06 PDT you wrote:

> Hello Everyone,
>  
> Im putting up a 20 meter monoband beam and was planning to feed it with LMR400. Recently a friend said he had some 75ohm hardline that I could use as well. Which would I be better using as far as lower loss is concerned? Its about a 250-300ft run btw. What do you guys think? Thanks and 73
>  
> Mark
> W0NCL
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