[TenTec] ARRL's BPL NPRM response is out

[Jim Brown]

On Tue, 4 May 2004 09:00:56 EDT, K4IA at aol.com wrote:

>Why does ARRL and the FCC keep focusing on local interference?

I suspect it is because that is the condition for which research has been documented. NTIA identified 
skywave propagation as an issue and said that a serious study of it was needed during the next phase of 
their work. 

ARRL has focused on the scientific approach -- i.e., that which can be documented and which cannot be 
construed as "claims." Skywave interference studies are more computationally intensive, as well as more 
difficult to set up with actual systems. Further, small scale tests of skywave would not be meaningful anyway 
-- it is the accumulated noise of MANY sources that will cause major problems at distant locations, and large 
scale tests have not (AFAIK) been done.  NTIA's work is solid science, and to the extent that it covers it, 
tends to back up ARRL's earlier comments. 

Jim Brown  K9YC