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VK3ZWI > AMRVIC 21.07.05 00:52l 47 Lines 1972 Bytes #999 (0) @ WW
BID : 52902_VK3DSE
Read: GUEST
Subj: Broadcaster hits BPL
Path: DB0FHN<DB0FOR<DB0SIF<DB0EA<DB0RES<ON0AR<ZL2BAU<VK3AYM<VK3DSE
Sent: 050720/0850Z @:VK3DSE.#MEL.VIC.AUS.OC #:52902 [Narre Warren] FBB7.00g25
From: VK3ZWI@VK3DSE.#MEL.VIC.AUS.OC
To : AMRVIC@WW
Broadcaster hits BPL
--------------------
The Australian Broadcasting Corporation (ABC) strongly believes Broadband
over Powerlines (BPL) should not interfere be allowed to interfere with
existing and future radiocommunication services.
The ABC has told the Australian Communications Authority it believes that
BPL is highly likely to cause interference to and result in the loss of
broadcasting signals in rural areas, and, under worse case conditions, in
suburban areas.
This public sector broadcaster operates four radio networks with around 650
transmitters, 39 regional radio stations, and television stations in each
state capital city and regional reception area.
The ABC submission to the ACA discussion paper on the Management of
Interference from Broadband over Power Line Applications, said
"Broadcasting is a protected service," and BPL operators should be obliged
to alert the public that interference may occur.
BPL interference could potentially disrupt emergency information
broadcasts, and the Digital Radio Mondiale services being considered as a
way of delivering digital radio to rural and regional Australia.
The national broadcaster describes as "a major concern for HF broadcasting"
the fact the BPL emissions are likely to propagate via the ionosphere and
have the potential to interfere with receivers thousands of kilometres away.
It told the ACA that "In such circumstances, it is likely to be difficult
to identify the source of interference, let alone take action to have it
suppressed."
The ABC also commented on In-house BPL, used within buildings. While such
systems may work overseas, it said, they can cause problems to Australia's
unique frequency allocations.
The bottom line according to the ABC is that the needs of
radiocommunications services should take precedence over BPL with its
unplanned by-product emissions.
- Amateur Radio Victoria
www.amateurradio.com.au
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