[Amps] 50 Ohm Loads

[Jim Brown]

On Mon, 12 Nov 2007 12:17:29 -0500, jeremy-ca wrote:

>The loads covered up to 1500 KHz or so and 
>above that the cap had to be changed.

I know you said that, but I don't believe it. 540-1700 kHz is a 3:1 range. 
In most RF systems, a dummy load needs to be pretty close to purely 
resistive. It is hard to believe that what you describe could achieve that 
over anything approaching a 3:1 frequency range with a wire wound resistor. 
It certainly could be achieved, to some reasonable tolerance, over the 
bandwidth of one broadcast station. 

>I see no reason why an inductive resistor cant be used with reactance 
>compensation in a monoband load such as used in a 160 or 80M 4 square.

Over a narrow frequency range it might be made to work. 

73,

Jim Brown K9YC