I'm sure you caught it but notice his reference to "interaction with other
users on the unlicensed spectrum". All well and fine but what about the
licensed hf users, which I believe was the point of your letter. This seems
to raise more questions then they've answered.. I would request an immediate
clarification to his response.
K. Nesbitt, VE6IV
>I have received the following response to a message I
>sent to the GM of PUC....
>We have involved Industry Canada from the inception of
>this project (back in May of 2003). Industry Canada
>personnel will be in Sault Ste. Marie to conduct a
>number of tests and measurements with respect to how
>BPL interacts with other users on the unlicensed
>Based on other test results that we have seen in U.S.
>deployments, we do not believe that we will encounter
>any significant issues that cannot be addressed.
>From: CR Consulting [mailto:firstname.lastname@example.org]
>Sent: Thursday, February 05, 2004 8:02 PM
>Subject: Broadband over Power Line
>I was interested to read in today's newspaper about
your proposed deployment of BPL in The Sault. If it is
>successful, it could clearly be of benefit to
>consumers living outside the range of DSL or cable TV
>My understanding is that the BPL transmission over
>your medium voltage power lines will take place at
>frequencies in the HF region, although final
>distribution will use IEEE 802.11b. Power transmission
>lines are inherently poorly balanced for high radio
>frequencies and there must therefore be significant
>radiation from the lines. I wonder what steps you have
>taken to ensure that your system cannot cause
>interference to other users of the HF spectrum, and to
>ensure that other legitimate users cannot disrupt your
>I look forward to your reply.
>PO Box 21024 Plaza 69
>Sudbury ON P3G 1G2
>705 523 4028
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