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AW: [A-DX] German ADDX Group opposes PLT standard


  • Subject: AW: [A-DX] German ADDX Group opposes PLT standard
  • From: Günter Lorenz <glorenz@xxxxxxxxxxxxx>
  • Date: Sun, 26 Aug 2012 18:50:15 +0200

> http://www.rsgb.org/news/articlelinks.php?id=0391

Sehr gut, ADDX! Nicht gekleckert (also: Kein Gejammere von wegen Kurzwelle und Tropenbändern), sondern in der Sache auf Augenhöhe und sauber argumentiert!
Hoffentlich ist die Stellungnahme im nächsten Kurier oder auf http://www.addx.de/plc/plc.php nachzulesen. 

Irgendwie ist man beim "European Union committee on Powerline Networking" ziemlich nervös, die im "Amateur Radio Newsline(tm) Report 1828 - August 24 2012" veröffentlichten Aussagen sprechen für sich:
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Amateur Radio Newsline(tm) Report 1828 - August 24 2012

THE BPL WAR: EU VS RSGB OVER BPL STANDARD

A battle appears to be brewing between the Radio Society of Great Britain and the chairman of the European Union Committee. This after the latter attacked the RSGB's call to arms in the battle against Powerline Transmission radio pollution. A technology better known as Broadband Over Powerline here in the United States. Amateur Radio Newsline's Norm Seeley, KI7UP,has more: 

--

The chairman of the European Union committee on Powerline Networking has responded to the Radio Society of Great Britain's call to arms, claiming that every minute of filibustering pollutes the radio spectrum more.

According to the UK newspaper the Register, the Radio Society of Great Britain says that the new standard for broadband powerline transmission, will water down existing requirements. This it says will open the way to greater spectrum pollution. As such, the RSGB has asked members to lobby their local representatives. 

But Ronald Storrs, Chair of the committee defining the standard refutes that. He claims that it is the RSGB that is risking the airwaves with - and we quote" "their pointless protests and inflexible attitude."

The problem is that sending data signals over unshielded mains wiring, as Broadband Over Powerline transmissions does generates radio interference. And as the manufacturers push to increase speeds that interference is spreading into the frequencies used by other radio services. That, says the RSGB, is unacceptable.

But BPL or PLT equipment manufacturers have a totally different view. They say that the devices don't generate significant interference. Rather it's the mains wiring is the culprit. The manufacturers also contend that in many homes the wiring is sufficiently shielded that no interference is generated. As such they will continue to sell their devices legally.

Meantime UK telecommunications regulator Ofcom has taken a back seat in this matter. It says that it can't do anything as the devices themselves aren't radio transmitters so fall outside their purview. Ofcom says it's waiting for the new standard to be enacted which will give it some authority to regulate Broadband over Powerline technology. 

So it appears that a proverbial line has been drawn in the sand between the UK ham radio community represented by the Radio Society of Great Britain and those who want to sell Broadband Over Powerline or PLT gear. And while the European Union's Storrs agrees that BPL is generating unacceptable interference, he says that every day there isn't an applicable standard in place more unrestricted gear is getting into the marketplace. He adds that the intransigence of United Kingdom's ham radio community isn't helping.

For the Amateur Radio Newsline, I'm Norm Seeley, KI7UP, in Scottsdale, Arizona.
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(via DXLD)


@Martin:  Wegen der Kabel-Lobby ...
Eine erklärte Pointe ist zwar keine Pointe mehr, aber ich bessere nach: Was uns bei PLC stört, ist ja die Abstrahlung der HF von den Stromkabeln (siehe oben: "the mains wiring is the culprit"). Um diese Abstrahlung zu verhindern, könnte man geschirmte Kabel einsetzen, und daran sollten ja vor allem diejenigen ein Interesse haben, die solche produzieren und vertreiben.

Solche hochwertig geschirmten Kabel gibt es übrigens schon für schnelle Computernetzwerke (Cat 7 ist hier das Stichwort), und die können sogar Strom übertragen: PoE = Power over Ethernet. Das ist dann das Gegenteil von PLC. Wenn die Kabel gut geschirmt sind, könnte man im Innenraum auch Erdgas durchpressen. Oder gleich auf die vorteilhaften Lichtwellenleiter umstellen - da können die Stadtwerke Freising das Licht dann zentral erzeugen und direkt an alle Haushalte verteilen. Im Handumdrehen auch die Glühbirnen eingespart. Is ja gut, ich hör schon auf zu fantasieren... Und jetzt zurück ans Radio!

73,
Günter




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