RE: [backstage] Is this BBC Homeplug product legal?

2009-12-15 Thread Andrew Bowden
Router upstairs in back bedroom.
Freesat set top box downstairs in living room.
Master phone socket at the bottom of the stairs.
 
Homeplug's far easier in such a scenario - which is the scenario in my
house.
 
Freesat are a joint venture, 50% owned by the BBC and 50% owned by ITV
plc, so it's not really Auntie's brand.  They have taken the decision to
inform the public that there are different ways to connect their set top
box using the various available methods - ethernet, Homeplug and
wireless bridge.  All are legal and valid at this time.
 




From: owner-backst...@lists.bbc.co.uk
[mailto:owner-backst...@lists.bbc.co.uk] On Behalf Of Brian Butterworth
Sent: 14 December 2009 17:31
To: backstage@lists.bbc.co.uk
Subject: Re: [backstage] Is this BBC Homeplug product legal?


As someone who has been responsible for installation of enough
cat5 to  

Why would you want to use a HomePlug?  People used to have
landline phones upstairs, and everyone was happy with wires for that.
HomePlug is not just pointless, it is expensive and is to radio hams as
light pollution is to astronomers.

Is there something ... not iPlayer ... about a cat5 cable?

I can understand BT doing Homeplug, because BT is a telco, but
Freesat is Auntie's brand! 

2009/12/14 Mo McRoberts m...@nevali.net



On 14-Dec-2009, at 16:29, Brian Butterworth wrote:

 http://www.youtube.com/watch?v=z0ttLGbZI7k

 Nice video - but it's using these
http://www.homeplugs.co.uk/ Homeplug adaptor.

 I can't find anywhere where it says that these
Homeplug things are legal.  They didn't used to be.


They've been sold in the UK since the late 80s...


 Can someone point out where I can find where it says
they are legit?

 A number of trolls have descended on my site saying
that they are not, and I can't find a definitive answer.


There's an going dispute between the The Radio Society
and Ofcom (see
http://www.theregister.co.uk/2009/09/04/power_line_networking/), but kit
compliant with the standards is perfectly legal.

M.

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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-15 Thread Simon Thompson
The RF noise generated by these technologies is quite bad,  it's in a 
band where noise can propogate worldwide via the ionosphere.  It can 
prevent receivers locking to, or demodulating a signal. 


http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP116.pdf

Also, it's very easy to demodulate the Ethernet traffic radiated from 
your house wiring from one of these systems - it's not very secure!



Simon

PS Single wire telephone extensions?


Alan Pope wrote:

2009/12/14 Brian Butterworth briant...@freeview.tv:
  

As someone who has been responsible for installation of enough cat5 to 
Why would you want to use a HomePlug?



Because it's easier than flood wiring the whole house.

  

 People used to have landline phones
upstairs, and everyone was happy with wires for that.



Usually one wire, singular. With HomePlug I can have ethernet wherever
there is a power point, and I do move them around now and then.

  

 HomePlug is not just
pointless, it is expensive and is to radio hams as light pollution is to
astronomers.



I must say I'd never heard of the radio interference at all.

Cheers,
Al.

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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-15 Thread Stephen Jolly
On 15 Dec 2009, at 10:33, Simon Thompson wrote:
 Also, it's very easy to demodulate the Ethernet traffic radiated from your 
 house wiring from one of these systems - it's not very secure!

I think the Homeplug AV standard uses 128-bit AES traffic encryption, which 
should be enough to foil the casual attacker, assuming it's competently 
implemented.

S


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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-15 Thread Alan Pope
2009/12/15 Simon Thompson simon.thomp...@rd.bbc.co.uk:
 Also, it's very easy to demodulate the Ethernet traffic radiated from your
 house wiring from one of these systems - it's not very secure!


Mitigated by the use of 128bit AES encryption (in the ones I have anyway).

Cheers,
Al.
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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-15 Thread Simon Thompson
Wasn't encryption an option on Homeplug 1.0?  I thought it came with 
either a default password or the option to switch it on.


Stephen Jolly wrote:

On 15 Dec 2009, at 10:33, Simon Thompson wrote:
  

Also, it's very easy to demodulate the Ethernet traffic radiated from your 
house wiring from one of these systems - it's not very secure!



I think the Homeplug AV standard uses 128-bit AES traffic encryption, which 
should be enough to foil the casual attacker, assuming it's competently 
implemented.

S


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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-15 Thread Simon Thompson
Oops, same team did look into internal systems, but the noise problem is 
similar.  I'll see if I can find their report.




Mo McRoberts wrote:

On 15-Dec-2009, at 10:33, Simon Thompson wrote:

  
The RF noise generated by these technologies is quite bad,  it's in a band where noise can propogate worldwide via the ionosphere.  It can prevent receivers locking to, or demodulating a signal.  


http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP116.pdf



Is that not a four and a half year old report into a trial of a PLT system 
which delivered broadband access via power supply lines, rather than a product 
which makes use of internal power cabling to provide home networking? (I 
realise the underlying tech is similar, though things have moved on a bit in 
that time, but context is somewhat important, no?)

M.

  


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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-15 Thread Paul Webster
Radio Society has more info
http://www.rsgb.org/plt/
In particular they are chasing after the Comtrend models supplied by BT.

Paul

On Tue, 15 Dec 2009 11:24:53 +, you wrote:

Oops, same team did look into internal systems, but the noise problem is 
similar.  I'll see if I can find their report.



Mo McRoberts wrote:
 On 15-Dec-2009, at 10:33, Simon Thompson wrote:

   
 The RF noise generated by these technologies is quite bad,  it's in a band 
 where noise can propogate worldwide via the ionosphere.  It can prevent 
 receivers locking to, or demodulating a signal.  

 http://downloads.bbc.co.uk/rd/pubs/whp/whp-pdf-files/WHP116.pdf
 

 Is that not a four and a half year old report into a trial of a PLT system 
 which delivered broadband access via power supply lines, rather than a 
 product which makes use of internal power cabling to provide home 
 networking? (I realise the underlying tech is similar, though things have 
 moved on a bit in that time, but context is somewhat important, no?)

 M.

   

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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-15 Thread Scot McSweeney-Roberts
On Tue, Dec 15, 2009 at 12:11, Paul Webster p...@dabdig.com wrote:

 Radio Society has more info
 http://www.rsgb.org/plt/
 In particular they are chasing after the Comtrend models supplied by BT.


I thought the Comtrend powerline adapters aren't HomePlug (
http://www.homeplug.org/) standard compliant. Which makes me wonder why
people are drawing the conclusion that all PLAs are bad, when at worst it
appears to be a relative handful of non-standard ones that may be causing a
limited amount of interference. It's like saying that because some cars on
the road don't meet emissions standards then all cars don't and that all
cars are illegal, going by some of the posts on the forums linked to in this
thread.


Scot


Re: [backstage] Is this BBC Homeplug product legal?

2009-12-15 Thread Paul Webster
On Tue, 15 Dec 2009 14:17:47 +, you wrote:

On Tue, Dec 15, 2009 at 12:11, Paul Webster p...@dabdig.com wrote:

 Radio Society has more info
 http://www.rsgb.org/plt/
 In particular they are chasing after the Comtrend models supplied by BT.


I thought the Comtrend powerline adapters aren't HomePlug (
http://www.homeplug.org/) standard compliant. Which makes me wonder why
people are drawing the conclusion that all PLAs are bad, when at worst it
appears to be a relative handful of non-standard ones that may be causing a
limited amount of interference. It's like saying that because some cars on
the road don't meet emissions standards then all cars don't and that all
cars are illegal, going by some of the posts on the forums linked to in this
thread.


BT website says:
This product is compatible with all other DS2 powerline adapters - it isn't 
compatible with the Homeplug adapters.
Their organisation is:
http://www.upaplc.org/page_viewer.asp?pid=5


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[backstage] Is this BBC Homeplug product legal?

2009-12-14 Thread Brian Butterworth
http://www.youtube.com/watch?v=z0ttLGbZI7k

Nice video - but it's using these http://www.homeplugs.co.uk/ Homeplug
adaptor.

I can't find anywhere where it says that these Homeplug things are legal.
 They didn't used to be.

Can someone point out where I can find where it says they are legit?

A number of trolls have descended on my site saying that they are not, and I
can't find a definitive answer.

Thanks in advance


-- 

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follow me on twitter: http://twitter.com/briantist
web: http://www.ukfree.tv - independent digital television and switchover
advice, since 2002


Re: [backstage] Is this BBC Homeplug product legal?

2009-12-14 Thread Mo McRoberts

On 14-Dec-2009, at 16:29, Brian Butterworth wrote:

 http://www.youtube.com/watch?v=z0ttLGbZI7k
 
 Nice video - but it's using these http://www.homeplugs.co.uk/ Homeplug 
 adaptor.
 
 I can't find anywhere where it says that these Homeplug things are legal.  
 They didn't used to be.

They’ve been sold in the UK since the late 80s…

 Can someone point out where I can find where it says they are legit?  
 
 A number of trolls have descended on my site saying that they are not, and I 
 can't find a definitive answer.  

There’s an going dispute between the The Radio Society and Ofcom (see 
http://www.theregister.co.uk/2009/09/04/power_line_networking/), but kit 
compliant with the standards is perfectly legal.

M.

-- 
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http://nevali.net
iChat: mo.mcrobe...@me.com  Jabber/GTalk: m...@ilaven.net  Twitter: @nevali

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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-14 Thread Paul Webster

Comments here
http://www.joinfreesat.co.uk/index.php/bbc-iplayer-launches-in-december
That Ofcom are  reviewing interference.

Paul

--  
Sent from my phone


On 14 Dec 2009, at 16:29, Brian Butterworth briant...@freeview.tv  
wrote:



http://www.youtube.com/watch?v=z0ttLGbZI7k

Nice video - but it's using these http://www.homeplugs.co.uk/  
Homeplug adaptor.


I can't find anywhere where it says that these Homeplug things are  
legal.  They didn't used to be.


Can someone point out where I can find where it says they are legit?

A number of trolls have descended on my site saying that they are  
not, and I can't find a definitive answer.


Thanks in advance


--

Brian Butterworth

follow me on twitter: http://twitter.com/briantist
web: http://www.ukfree.tv - independent digital television and  
switchover advice, since 2002


Re: [backstage] Is this BBC Homeplug product legal?

2009-12-14 Thread Brian Butterworth
As someone who has been responsible for installation of enough cat5 to 

Why would you want to use a HomePlug?  People used to have landline phones
upstairs, and everyone was happy with wires for that.  HomePlug is not just
pointless, it is expensive and is to radio hams as light pollution is to
astronomers.

Is there something ... not iPlayer ... about a cat5 cable?

I can understand BT doing Homeplug, because BT is a telco, but Freesat is
Auntie's brand!

2009/12/14 Mo McRoberts m...@nevali.net


 On 14-Dec-2009, at 16:29, Brian Butterworth wrote:

  http://www.youtube.com/watch?v=z0ttLGbZI7k
 
  Nice video - but it's using these http://www.homeplugs.co.uk/ Homeplug
 adaptor.
 
  I can't find anywhere where it says that these Homeplug things are legal.
  They didn't used to be.

 They’ve been sold in the UK since the late 80s…

  Can someone point out where I can find where it says they are legit?
 
  A number of trolls have descended on my site saying that they are not,
 and I can't find a definitive answer.

 There’s an going dispute between the The Radio Society and Ofcom (see
 http://www.theregister.co.uk/2009/09/04/power_line_networking/), but kit
 compliant with the standards is perfectly legal.

 M.

 --
 mo mcroberts
 http://nevali.net
 iChat: mo.mcrobe...@me.com  Jabber/GTalk: m...@ilaven.net  Twitter: @nevali

 Run Leopard or Snow Leopard? Set Quick Look free with DropLook -
 http://labs.jazzio.com/DropLook/









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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-14 Thread Alan Pope
2009/12/14 Brian Butterworth briant...@freeview.tv:
 As someone who has been responsible for installation of enough cat5 to 
 Why would you want to use a HomePlug?

Because it's easier than flood wiring the whole house.

  People used to have landline phones
 upstairs, and everyone was happy with wires for that.

Usually one wire, singular. With HomePlug I can have ethernet wherever
there is a power point, and I do move them around now and then.

  HomePlug is not just
 pointless, it is expensive and is to radio hams as light pollution is to
 astronomers.

I must say I'd never heard of the radio interference at all.

Cheers,
Al.

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RE: [backstage] Is this BBC Homeplug product legal?

2009-12-14 Thread Christopher Woods

 Usually one wire, singular. With HomePlug I can have ethernet 
 wherever there is a power point, and I do move them around 
 now and then.


Can I cast my vote for a 20m CAT5 cable under the carpet, up the stairs, to
a discreetly placed gigabit switch on the landing / in the study? You still
only use one power socket, way better throughput and far less annoying to
our radio ham friends =) and everyone likes ducting CAT5, right?


Those flat CAT5 cables look like they could do the trick nicely, but I'm
more a fan of the 'just wind it around the banister' method ;) turn your
network infrastructure into additional decoration!

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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-14 Thread Scot McSweeney-Roberts
On Mon, Dec 14, 2009 at 17:30, Brian Butterworth briant...@freeview.tvwrote:


 Why would you want to use a HomePlug?


To easily extend my home network.

 People used to have landline phones upstairs, and everyone was happy with
 wires for that.


If everyone was happy with that, then DECT phone line extenders wouldn't
exist. Seeing as DECT phone line extenders exist, I'm guessing not everyone
was happy running wires.


  HomePlug is not just pointless, it is expensive and is to radio hams as
 light pollution is to astronomers.


HomePlug isn't pointless and it's not expensive (especially compared to
cost/effort of running CAT5 through a house). Maybe some Hams are getting
some interference from some particular powerline devices - that doesn't mean
that the powerline concept as a whole is somehow wrong or evil.


Scot


Re: [backstage] Is this BBC Homeplug product legal?

2009-12-14 Thread Jon Knight

On Mon, 14 Dec 2009, Alan Pope wrote:

2009/12/14 Brian Butterworth briant...@freeview.tv:

As someone who has been responsible for installation of enough cat5 to 
Why would you want to use a HomePlug?


Because it's easier than flood wiring the whole house.


Its also a good way of getting an emergency connection in when your main 
fibre feed to a building has been visited by Mr Rat and you've got to wait 
for a day or so for the contractors to find the break and splice it.  Not 
to mention getting connections into exhibition spaces, etc that have 
thoughtfully had mains sockets put in floor boxes but no networking.

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Re: [backstage] Is this BBC Homeplug product legal?

2009-12-14 Thread Brian Butterworth
So, are they legal outside the home?  The idea of using on in a conference
space seems crazy to me, but I only ever go to conferences full of
technology...

2009/12/14 Jon Knight j.p.kni...@lboro.ac.uk

 On Mon, 14 Dec 2009, Alan Pope wrote:

 2009/12/14 Brian Butterworth briant...@freeview.tv:

 As someone who has been responsible for installation of enough cat5 to
 
 Why would you want to use a HomePlug?


 Because it's easier than flood wiring the whole house.


 Its also a good way of getting an emergency connection in when your main
 fibre feed to a building has been visited by Mr Rat and you've got to wait
 for a day or so for the contractors to find the break and splice it.  Not to
 mention getting connections into exhibition spaces, etc that have
 thoughtfully had mains sockets put in floor boxes but no networking.

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