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What's the latest re BPL trials ??

 
 
___
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      06-01-2004, 11:15 PM
This is very bad news for the SW and ham radio person if this ever becomes
widespread which I doubt. 9 + of QRM accross all SW freqs, no thanks

http://www.arrl.org/tis/info/HTML/plc/

Wtach some of the videos, frightening stuff


 
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Ronny
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      06-02-2004, 12:45 PM

"___" <(E-Mail Removed)> wrote in message
news:40bd28e2$(E-Mail Removed)...
> This is very bad news for the SW and ham radio person if this ever becomes
> widespread which I doubt. 9 + of QRM accross all SW freqs, no thanks
>
> http://www.arrl.org/tis/info/HTML/plc/
>
> Wtach some of the videos, frightening stuff
>
>

Peob because most of the population require interent access and do not
require ham radio, we got to move with the times, and almost every house in
the UK is supplied with electricity, so piping the net through this means
makes sense.

It's not as if you can order a pizza using your ham radio, or check your
bank account


 
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Phil
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      06-02-2004, 02:04 PM
It's not just radio amateurs that are effected. It's everyone that uses the
HF spectrum from short wave radio to the military to long range air traffic
control to shipping. Just think you are in the middle of the Atlantic on
your round the world cruise and your ship starts to sink the ship calls SOS
using it's HF radio only to find that the coast guards HF receiver can't
hear anything because of interference from BPL. Radio Amateurs are also very
useful in a big disaster when there is no electric no phone lines no
internet radio amateurs are often the only means of communication in a
disaster situation.

--
Phil From Scarborough UK
"Ronny" <(E-Mail Removed)> wrote in message
news:c9ki8d$qvn$1$(E-Mail Removed)...
>
> "___" <(E-Mail Removed)> wrote in message
> news:40bd28e2$(E-Mail Removed)...
> > This is very bad news for the SW and ham radio person if this ever

becomes
> > widespread which I doubt. 9 + of QRM accross all SW freqs, no thanks
> >
> > http://www.arrl.org/tis/info/HTML/plc/
> >
> > Wtach some of the videos, frightening stuff
> >
> >

> Peob because most of the population require interent access and do not
> require ham radio, we got to move with the times, and almost every house

in
> the UK is supplied with electricity, so piping the net through this means
> makes sense.
>
> It's not as if you can order a pizza using your ham radio, or check your
> bank account
>
>



 
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___
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      06-02-2004, 04:19 PM

"Phil" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> It's not just radio amateurs that are effected. It's everyone that uses

the
> HF spectrum from short wave radio to the military to long range air

traffic
> control to shipping. Just think you are in the middle of the Atlantic on
> your round the world cruise and your ship starts to sink the ship calls

SOS
> using it's HF radio only to find that the coast guards HF receiver can't
> hear anything because of interference from BPL. Radio Amateurs are also

very
> useful in a big disaster when there is no electric no phone lines no
> internet radio amateurs are often the only means of communication in a
> disaster situation.
>

Yes very true. BPL is making internet access far too important


 
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Alan LeHun
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      06-02-2004, 05:48 PM
In article <(E-Mail Removed)>, (E-Mail Removed) says...
> Radio Amateurs are also very
> useful in a big disaster when there is no electric no phone lines no
> internet radio amateurs are often the only means of communication in a
> disaster situation.
>
>
>

I recall the Falklands war which was first reported by HAM radio. Two
enthusiasts on the island were Britains only source of Intelligence for
several days until the Argentineans tracked them down.

--
Alan LeHun
 
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Steve
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      06-02-2004, 07:04 PM
On Wed, 2 Jun 2004 00:15:10 +0100, "___" <(E-Mail Removed)> wrote:

>This is very bad news for the SW and ham radio person if this ever becomes
>widespread which I doubt. 9 + of QRM accross all SW freqs, no thanks
>
>http://www.arrl.org/tis/info/HTML/plc/
>
>Wtach some of the videos, frightening stuff


Don't worry, it's completely pants as a technology with an equally
hopeless business case. Mind you it will only take the power
utilities another three decades to finally work that out.
 
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Graham
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      06-02-2004, 07:41 PM
> This is very bad news for the SW and ham radio person if this ever becomes
> widespread which I doubt. 9 + of QRM accross all SW freqs, no thanks
>
> http://www.arrl.org/tis/info/HTML/plc/
>
> Wtach some of the videos, frightening stuff
>

Never mind BPL this ADSL lark isn't exactly Topband friendly;
and vice-versa of course.

Graham.

73's de G3ZVT




%Profound_observation%



 
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Steve
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      06-02-2004, 08:04 PM
On Wed, 2 Jun 2004 20:41:13 +0100, "Graham" <(E-Mail Removed)> wrote:

>> This is very bad news for the SW and ham radio person if this ever becomes
>> widespread which I doubt. 9 + of QRM accross all SW freqs, no thanks
>>
>> http://www.arrl.org/tis/info/HTML/plc/
>>
>> Wtach some of the videos, frightening stuff
>>

> Never mind BPL this ADSL lark isn't exactly Topband friendly;
>and vice-versa of course.


Think yourself lucky you're not in Japan with some of the proposed
proprietary symmetric 100Mbits/s VDSL2 from Ikanos (etc). It uses DMT
up to nearly 18MHz.
 
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robert w hall
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      06-03-2004, 06:35 PM
In article <(E-Mail Removed)>, Steve
<(E-Mail Removed)> writes
>On Wed, 2 Jun 2004 20:41:13 +0100, "Graham" <(E-Mail Removed)> wrote:
>
>>> This is very bad news for the SW and ham radio person if this ever becomes
>>> widespread which I doubt. 9 + of QRM accross all SW freqs, no thanks
>>>
>>> http://www.arrl.org/tis/info/HTML/plc/
>>>
>>> Wtach some of the videos, frightening stuff
>>>

>> Never mind BPL this ADSL lark isn't exactly Topband friendly;
>>and vice-versa of course.

>
>Think yourself lucky you're not in Japan with some of the proposed
>proprietary symmetric 100Mbits/s VDSL2 from Ikanos (etc). It uses DMT
>up to nearly 18MHz.


well a twisted pair shouldn't exactly be a very efficient aerial

TV line bases are pretty bad and have been essentially unshielded for
yonks IIRC

(And I dimly recollect that, despite the fumings from my old Prof,
radio-astronomy has managed to co-exist with microwave ovens.)

Bob
(G3XIY)

--
robert w hall
 
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Steve
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      06-04-2004, 11:09 AM
On Thu, 3 Jun 2004 19:35:36 +0100, robert w hall
<(E-Mail Removed)> wrote:

[snip]

>>
>>Think yourself lucky you're not in Japan with some of the proposed
>>proprietary symmetric 100Mbits/s VDSL2 from Ikanos (etc). It uses DMT
>>up to nearly 18MHz.

>
>well a twisted pair shouldn't exactly be a very efficient aerial


Assuming that in-building wiring is good quality UTP, agreed. However
there was once a video clip of Cisco's Long Reach Ethernet (a
bastardised version of VDSL), running over open barbed wire thereby
showing/suggesting that even the very worst in-building telephony
grade cable is "OK" for high speed data.

And I seem to remember the Nor.Web powerline stuff aroused the
interest of the RA (as it was) as to whether VDSL was/is a potential
mass-interferer.

>TV line bases are pretty bad and have been essentially unshielded for
>yonks IIRC
>
>(And I dimly recollect that, despite the fumings from my old Prof,
>radio-astronomy has managed to co-exist with microwave ovens.)


So are the protestations of the radio-astronomy folk to UWB justified?
I'd love to know.

 
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