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Re: BPL - Rant2



Hi Emily

Please comment on how Amateur Radio Spread Spectrum ( SS ) , SSTV and
BPL.
I note the FCC is expanding Amateur SS frequency authorization.
Why was FFH chosen over sequential .
Are there some numbers that will better guide the measurement of noise
floor reference.
How does pointing a high gain antenna ( a mono seven elements on ten
meters with a RF switched preamp at the driven dipole) at the power line
impact noise floor measurement.
More information is needed on the ability of the BPL system to control
their use of  a part of the spectrum .
Whether this is an adaptive of manual system of spectrum use control .

Thanks for the effort

Joe  K0VTY
==================================
On Fri, 25 Jun 2004 00:21:24 -0700 Emily Clarke <w0eec@AMSAT.Org> writes:
> 
> There were a few things I left out:
> 
> 1) 2m and 70cm will not be immune - harmonic distortion will happen. 
> Since 
> BPL is broadband second, third and fourth harmonics will invade. 
> Groundstations that rely on preamps will be particularly affected.
> 
> 2) Pay attention to meetings with city councils, town councils, 
> planning 
> boards and selectman's meetings.  BPL proponents will need permits 
> and are 
> not prepared to argue facts at these types of meetings - they expect 
> a 
> rubber stamp, so make sure they don't get it.
> 
> 3) Be aware of intermittent blackouts in your neighborhood.  The 
> people 
> installing BPL have to cut power in order to put the repeaters in 
> line.  Intentional service interruptions are usually a violation of 
> local 
> ordinances.  Complain, and complain loudly.
> 
> 4) Be aware of "pre-staging" - this is when the BPL companies are 
> installing devices in advance of permits.  Make sure your public 
> officials 
> are aware if this is happening in your neighborhood.
> 
> 5) If you have underground services, make sure you take noise 
> measurements, 
> but also make sure you take pictures of the before and after. It is 
> likely 
> the permit requires them to restore the roadway.  That is probably 
> more 
> expensive then they could imagine.  Take before and after pictures, 
> and 
> insist that "patch" tar is not "restoration".
> 
> 73,
> 
> Emily
> 
> 
> ---------------------------------
> W0EEC - CM87tm
> AMSAT Area Coordinator - San Francisco Bay Area
> http://www.projectoscar.net    http://www.PlanetEmily.com 
> http://www.experthams.net/ao7
> 
> Help Launch Echo - http://www.amsat.org/amsat/sats/echo/index.html
> --------------------------------- 
> 
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