[Elecraft] Fwd: K4 SDR version

[Jim Brown]

On 7/23/2019 5:10 PM, Joe Subich, W4TV wrote:
> Typically AM patterns are designed to put nulls in the direction
> of stations that a secondary user of a frequency must protect. 

One of my coop jobs from the University of Cincinnati was working in the 
engineering office of a broadcast consultant designing those arrays. 
Several decades ago, the AM Rules were revised to greatly reduce the 
protection given to Clear Channel stations like WBZ.

73, Jim K9YC