Technical Topics, September 2003
NASWA Files Reply Comments to FCC BPL Inquiry
On August 20 NASWA filed reply comments to the FCC in response to comments that were made by BPL proponents during the initial phase of the inquiry. Here is the substance of that submission. If you have not yet read the July and August editions of this column, I suggest you do so before continuing with this one. It will make much more sense if you have the background information explained in those other columns.
NASWA represents the interests of people who choose to get their news and information about other cultures via shortwave radio broadcasts on frequencies internationally allocated by the ITU and the FCC for this purpose.
There are several common threads that have been expressed by multiple BPL proponents that deserve further comment. Many of the proponents of using HF frequencies for BPL transmissions have made the point that their systems work at currently authorized Part 15 signal levels and should, therefore, be immediately authorized for commercial deployment. They assert that interference, if it occurs, can be mitigated by providing notches in the spectral mask for frequencies that are used for amateur radio. Many proudly proclaim that no complaints of interference from their technology have resulted from their test demonstrations. NASWA addresses each of these assertions in this response.
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