Topband: ammeter for INV-L

Roy royanjoy at
Mon Oct 15 11:13:08 EDT 2007


"Hi All
  Just getting the inverted L antenna operatinal .  I want to use a rf 
ammeter with it and want to get the right value meter.  My L is 165 feet 
long.  Power level is 1500 watts.  I have seen rf ammeters of 3 and 10 amps 
so far .
  What value is suggested?"
  john w9zy


The formula is radical P/R. So assuming 18 ohms feedpoint Z, and 1500 watts, 
the answer is 9 amps. flowing. You'd want the 10 amp meter for sure.

73,    Roy,    K6XK 

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