BPL *IS* Going to Happen- Get Ready

BPL *IS* Going to Happen- Get Ready

Post by tommyknocke » Sat, 30 Aug 2003 06:13:07







> > > Hey Frank, where'd you ever get the idea that radio *isn't* open to
> > > the public?
> > > I never knew anyone whatever who wanted a ham radio license who was
> > > barred from getting one. There is a small matter of qualifying for it,
> > > of course, as there is in every endeavor where others can and will be
> > > impacted when the licensee knows not which way is up. But it has
> > > always been open to all comers.

> > OK, amateur radio is open to the public.  But nearly all amateur radio
> > activity is either contacts between hams or some sort of test.  I'm under
> > the impression that amatuers broadcasting what might be considered
> > entertainment programming to the public is banned.  Am I wrong about that?

> No, sounds accurate to me.

> > >  Now if you're talking "open" like CB is open, that's a horse of an
> > > entirely different color.

> > >***

> > More like pirate radio.  I've heard some very entertaining stuff, and I hope
> > to hear alot more.  I know that time can be bought on an independent
> > broadcaster, but I'd really like to know why what Alan Maxwell and the other
> > do is illegal.  I think hobby broadcasting would bring alot of positive
> > interest to SW radio.

> As always,it's a $$$$$ thing, of course.

The National Association of Broadcasters has lobbied hard to keep hobby
broadcasting illegal, even on SW. They say that the AM and FM bands are
too crowded, and that's true, but SW is wide open. Of course they're
really concerned about innovative programming taking over market share.
If hobbyists were allowed on SW the radios would fly off shelves because
there'd finally be an alternative to automated corporate programming. (I
know for a fact that Clear Channel controls six or seven radio stations
in the San Francisco market, each carefully programmed as not to compete
with each other.)
 
 
 

BPL *IS* Going to Happen- Get Ready

Post by Robert F Wiela » Sat, 30 Aug 2003 23:00:08



[snip]

Quote:

> Will BPL have the same effect on military radio as it has on radio
> hobbyists?  Don't they have spread spectrum capability which is highly
> resistant to interference?

>Frank Dresser

Spread-spectrum is highly resistant to narrowband interference.  BPL
develops wideband interference.  What the military depends on is the
physics that any remote jammer trying to create wideband noise would need
to be immensely powerful, because a wide band of loud-at-a-distance noise
would have to have substantial energy at every frequency.  BPL defeats
this by putting the transmitting antenna very near the receiver, so the
noise source need not be powerful to be loud at every frequency.
--

R F Wieland       Newark, DE 19711-5323 USA   39.68N   75.74W
Icom R75          Heathkit GR-81              Inverted-L in the attic
Reply to wieland at me dot udel dot edu

 
 
 

BPL *IS* Going to Happen- Get Ready

Post by Frank Dresse » Sat, 30 Aug 2003 23:50:31




> Spread-spectrum is highly resistant to narrowband interference.  BPL
> develops wideband interference.  What the military depends on is the
> physics that any remote jammer trying to create wideband noise would need
> to be immensely powerful, because a wide band of loud-at-a-distance noise
> would have to have substantial energy at every frequency.  BPL defeats
> this by putting the transmitting antenna very near the receiver, so the
> noise source need not be powerful to be loud at every frequency.
> --

> R F Wieland       Newark, DE 19711-5323 USA   39.68N   75.74W
> Icom R75          Heathkit GR-81              Inverted-L in the attic
> Reply to wieland at me dot udel dot edu

That's what I'd expect.  But I don't know if the BPL system will dirty
enough, or close enough to significantly interfere with military
communications.  I suppose the military has sent people out to take readings
like Ed Hare did.  Anyway, I'm thinking the biggest threat to BPL isn't
outside opposition, but the spikey wideband trash normally found on power
lines.

That's it!  BPL is a wives' *** to get their husbands to start
vacuuming the freakin' carpet!

Frank Dresser

 
 
 

BPL *IS* Going to Happen- Get Ready

Post by David Moisa » Mon, 01 Sep 2003 01:56:33

On Tue, 26 Aug 2003 17:30:55 GMT, "Frank Dresser"


>Almost everybody agrees it's goofy.  But it's still around, not because it's
>technolgically elegant, but because it is seen to fill a need.  Maybe a
>couple of needs.  It promises high speed internet access for what would
>otherwise be higher cost customers.  And it might provide a revenue stream
>for electric utilities who need to upgrade thier service.

>Politicians have a choice.  Give the BPL thing a shot, or think about
>letting 'em raise rates right now.

The biggest myth about BPL is that it will serve rural customers.
Because the power lines are so inefficient at transmitting high
frequencies (due to egress and ingress) the power companies will need
to put repeaters every 2000 feet.

It's a non-starter for a farmhouse that may be 6000 feet just to the
nearest *road*.  

The power companies will pick the low-hanging fruit in urban areas
which are already served by cable & DSL.  I believe the technical
problems that high-density BPL will pose are considerable, perhaps
even insurmountable, in themselves.

Take care,

Dave


Invisible Disability:  http://www.davidmoisan.org/invisible_disability.html
GE Superradio FAQ: http://www.davidmoisan.org/faqs/superradio/gesr_faq.html
Sangean ATS-909 FAQ: http://www.davidmoisan.org/faqs/sangean/ats909faq.html

 
 
 

BPL *IS* Going to Happen- Get Ready

Post by David Moisa » Mon, 01 Sep 2003 01:59:59

On Wed, 27 Aug 2003 09:57:46 +0000 (UTC), Ralph Aichinger


>And I think military users could change to VHF or UHF, even sat
>communications anyway if they wanted. They could also keep BPL
>out of special areas. I doubt military users in suburban environments
>give a damn about HF.

ARINC *has* filed comments.  Apparently, one of their receive sites
near San Francisco was severely affected by some Part 15 equipment in
a house nearby.  One of their 3 MHz frequencies was rendered unusable.

The NTIA will step up to bat for the military and government HF users.

Take care,

Dave


Invisible Disability:  http://www.davidmoisan.org/invisible_disability.html
GE Superradio FAQ: http://www.davidmoisan.org/faqs/superradio/gesr_faq.html
Sangean ATS-909 FAQ: http://www.davidmoisan.org/faqs/sangean/ats909faq.html