On Thu, 28 Aug 2003 12:18:44 -0500, W5DXP  
wrote: 
 
My basic approach is to achieve a Z0-match and therefore 
forget about source impedance. 
 
Hi Cecil, 
 
This is a cavalier attitude if you can afford it.  Otherwise, those 
who so desperately hammer out the last 0.1 dB antenna gain are going 
to fall to their knees in wrack when they discover that their rig's 
characteristic Z of, say, 70 Ohms meeting the discontinuity of their 
low pass filter's 50 Ohms turns that effort into heat behind the 
antenna jack. 
 
I have long since stopped being surprised by those who spin on like 
whirling dervishes over trivial matters in the face of 10 fold losses 
in front of them.  This, of course, is even more trivial when they 
gush on about their premium equipment that behind the knobs 
"efficiently" transforms 20 - 25 Amperes of DC current into 100 Watts 
RF.   Now, that puts perspective to the topic: smoke and reflection 
coefficient. 
 
73's 
Richard Clark, KB7QHC 
		 
		
		
		
		
		
		
		
		
	
	 |