[TowerTalk] Coax Loss -- RG-Numbers Don't Tell us Much

[Jim Brown]

On Thu, 4 Feb 2010 15:56:51 -0800, Rick Karlquist wrote:

>Could the Belden catalog be wrong? :-)  In their case, seems to be 
pessimistic, at least on the low end. 

Might be. I'm looking at hard copy of the 2006 edition. The graph 
shows 0.2 dB/100 at 1 MHz for 9913, 0.3 for 9913F7. The tabulated 
data shows 0.3 for 9913, 0.4 for 9913F7. :)

Measurement is a worthwhile activity. I've learned some interesting 
things that way. :)  That's why I've been soliciting on the NCCC 
list for the loan of some LMR400. No takers so far. AD6E measured 
200 ft of LMR400UF and got some interesting data. I've measured 
LMR240 and 3227. I have enough 9258 and CQ118 to measure. I should 
do that sometime.  

73,

Jim K9YC