[UK-CONTEST] More Hardline info

[Andrew]

gm4fam at tiscali.co.uk wrote:
> Just as a quick illustration of power losses using 100 metre lengths of 
> various feeders:-
> 
> 100 watts of RF on 1.8 MHz would yield:-
> 
> 82.1 watts (0.86 dB loss) using Belden 8267 (RG-213)
> 86.5 watts (0.63 dB loss) using Wireman CQ-110 (RG-213)
> 93.6 watts (0.29 dB loss) using LDF 4-50, and
> 97.6 watts (0.11 dB loss) using LDF 6-50
> 
> These are for TopBand; at 28 MHz and above the figures are much more 
> depressing for co-ax!


Frank W3LPL produced a chart way back in 1995 that I find very useful.
K1TTT has a copy of it on his website at
http://www.k1ttt.net/technote/coaxloss.html which can be printed out for
easy reference.  I particularly like his 'feet required for 1dB
advantage' when comparing LDF4-50 and LDF5-50 to other lesser quality
coaxes.

Vy 73,

Andrew GI0NWG / AC6WI