HF Disruption due to Powerline Broadband

Submitted: Saturday, Aug 28, 2004 at 04:46
ThreadID: 15880 Views:3439 Replies:5 FollowUps:0
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From a VKS 737 bulletin a couple of days ago:

"The following press release was received from the Wireless Institute of Australia and indicates their concerns for
the harmful interference that can occur to HF Amateur Radio operations from the introduction of Broadband
Powerline Communications (BPL). Of interest in the article is the concerns that the WIA have for the future
operation of the VKS-737 Radio Network, and how the safety of members travelling in the Outback will be
placed in jeopardy should this technology be allowed to be implemented in Australia."

Full bulletin at:

http://www.vks737.on.net/pdfs/bpl_flyer.pdf

Can't see they will be able to let this go ahead.
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Reply By: Puddin & Gumnut (Sydney) - Saturday, Aug 28, 2004 at 18:18

Saturday, Aug 28, 2004 at 18:18
I ask my brother when I see him in a couple of weeks as he was involved in something like that as he works for Western Power in Perth & let you know if I get anything usefull.
AnswerID: 74367

Reply By: Member - John (Vic) - Saturday, Aug 28, 2004 at 22:56

Saturday, Aug 28, 2004 at 22:56
Thanks Wazza
Very interesting and very serious consequences if allowed to happen.
Not just for VKS users but all users.
VKS737 - Mobile 6352 (Selcall 6352)

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AnswerID: 74391

Reply By: geocacher (djcache) - Sunday, Aug 29, 2004 at 00:31

Sunday, Aug 29, 2004 at 00:31
They'll do it if we don't object. Lobby your local member.

If it gets in we'll have HF paper weights and shiny new satphones. Don't think that they care too much about us.

A vocal minority is the worst enemy of a politician.

See Background Briefing on introduction of BPL for more info.

Dave

Copy of my letter to Senator Helen Coonan - Minister for Communications, Information Technology and the Arts. Feel free to edit it and send it to senator.coonan@aph.gov.au

___________________________________________________________________
Hon. Helen Coonan
Senator for NSW
Minister for Communications, Information Technology and the Arts
Level 7, Angel Place
123 Pitt Street
Sydney NSW 2000

Dear Hon. Mrs. Coonan,

RE: Proposed introduction of Broadband over Power Line Technology

I am writing to express my strong objection to the possible introduction of BPL or Broadband over Power Lines in Australia, also referred to Powerline Telecommunications (PLT or PLC).

Australia is a country which through the sheer fact of it’s size relies heavily on interference free HF radio communications for much of its long distance communications. (High Frequency – 3 to 30 mega Hertz radio frequency spectrum.)
BPL has the potential to so seriously interfere with radio operations in the HF radio spectrum as to render it completely useless to existing users who rely heavily on it. Nationally these users include Defence, Police, Ambulance, Fire Service, ABC Radio, various state government departments such as Dept. of Sustainability & Environment (Vic), State Emergency Service, Air Ambulance services, VKS737 Australian 4wd Radio Network, Amateur Radio Operators, Royal Flying Doctor Service, School of the Air, RadTel (Radio Telephony), marine radio operations such as shipping and yachting and many, many others.

I am a member of the Australian 4wd HF Radio Network, VKS737**, which provides me with communication while in remote areas. As both a traveler and an Ambulance Paramedic I rely on HF communications for everything from day to day contact and messages, to messages of life and death importance. I can also use RadTel to make HF radio to Telstra calls from areas outside of land line or mobile coverage areas, and RFDS for emergency support in the outback.

Some of those remote areas are reasonably close to civilization, others are not. That may seem like a strange statement but I cite examples such as the Wonnangatta Valley in Victoria’s North East. With no mobile phone coverage I rely heavily on a Codan HF radio while traveling in such areas so as someone is always aware that I am safe. This communication ability has the potential to save millions of tax payers dollars through the ability to communicate and save unnecessary and extremely expensive searches for parties expected to return who may not have for many reasons, if they have the ability to make contact to advise their situation.
I would rely even more heavily on this equipment should something happen that affected the health of my traveling party, family, or someone else I happen across. I am an Ambulance Paramedic by profession and can implement treatment immediately but without the ability to summon specialist transport by Helimed or 4wd Ambulance support, the outcome for the patient/s could easily be fatal. HF radio provides this ability.

An example of this is an incident in the Wonnangatta Valley in early 2004 when, as a result of a high tension winching recovery of a 4wd where equipment failed, a young child was struck in the face by a steel object sustaining facial and head injuries. Luckily for the child a Dept. of Sustainability & Environment crew working in the area had a HF radio (standard equipment) in their vehicle and within a short time a HEMS MICA Paramedic arrived and treated and transported the critically injured child to hospital. Should that HF Radio not have been the child faced an arduous journey of many hours in a 4wd with no medical treatment to the nearest mobile reception area, and then a wait of even more time for help to arrive. The outcome may have been far, far worse.

Other areas I would rely solely on this form of communication in Victoria include the desert country in Western Victoria and many areas of the Otways and East Gippsland for the protection of myself, my family and others. Nationally the areas that rely solely on this form of communication are too many to mention.
HF radio communications are used to communicate anywhere from 20-100km, to several thousand kilometers, making them ideal for communication in a country of our size. This is evident through the use of HF by almost all of Australia’s Rural & Remote Emergency Services, along with many travellers, property owners and government agencies. They rely heavily on the quality of the conditions in the frequency spectrum in which they operate and on the state of the ionosphere. This is a fragile radio frequency environment which has the potential to be destroyed by the introduction of Broadband over Power Lines which operate 2 – 30 MHz signals over unbalanced powerlines which transmit those signals creating massive amounts of interference.

There is already significant evidence from overseas trials that the technology impacts heavily on this area of the radio frequency spectrum but this is conveniently overlooked by the companies seeking to introduce this technology. The necessity for this technology is questionable particularly in light of the fact that broadband or other high speed services are deliverable by many other means in remote areas such as satellite and ISDN telephone lines.

The Australian Communications Authority Background Briefing into BPL technology states that,
“HF communications is particularly important in Australia for long distance communications, and some of these services have defence or safety-of-life implications.” (Page 9, http://www.aca.gov.au/radcomm/frequency_planning/spps/0311spp.pdf)

It goes on to state that:
“There would appear to be a potential risk to HF radiocommunications services from the widespread use of broadband powerline communications systems; the risks appear to be associated with in-house applications as well as last-mile applications. This can be seen in the early filings to the FCC enquiry into powerline communications and the findings in ECC Report 24. There have now been broadband powerline communication trials held in the USA, Europe and Asia. The results of these trials have not alleviated concerns over the potential interference risk to radiocommunications.” (Page 16)

The ACA recognises also that conditions which allowed BPL in other countries may make BPL technology dangerous in Australia:
“Europe and the USA have greater degrees of urbanisation than Australia
and the weighting placed on the protection of HF services in those countries may well be less than that required in Australia.” (Page 16)

I would urge you to protect the HF Spectrum in Australia from destructive radio interference due to introduction of BPL technology. Please oppose the introduction of this technology as the safety, well being and lives of your constituents depend in some circumstances on the maintenance of the current conditions of the HF radio spectrum in Australia.

I request your response to this letter, and your support on this important issue.

Regards

AnswerID: 74397

Reply By: Member - Jiarna (SA) - Sunday, Aug 29, 2004 at 01:48

Sunday, Aug 29, 2004 at 01:48
Satellite phones might be a good alternative to HF radio if they worked a bit more often. When we have needed to use the sat phone near Oodnadatta for urgent calls to police and RFDS, it hasn't found a sat link 50% of the time. So I'd be worried if I was forced to rely on technology which has proven useless as often as not.
John
AnswerID: 74401

Reply By: Member - Jeff M (WA) - Monday, Aug 30, 2004 at 18:38

Monday, Aug 30, 2004 at 18:38
Not good at all!
Perhaps ExploreOz could start a partition where all members and vistors would have a chance to "sign up" and then have it forwarded to our lovely politions?
I have CC'd to Explore Oz.
AnswerID: 74544

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