[LINK] BPL

[Tom Koltai]

OK folks - TPK to the rescue.

BPL works depending on the transformers installed.
Alcatel tests from 1986 (For Telemetry reading the meter purposes - very
low bandwidth requirement) in QLD produced mixed results.
Short runs work - long runs don't.
We tried the same stuff in Darwin for four years..... Packets really
didn't like the lightning storms at 4:00 pm each wet season afternoon. 
Retry count was sometimes 30+ retries per packet - resulting in a very
slow data connection.
Found similar problems with power loss on extremely hot days.

Trial eventually changed to 470 mhz RF for gas/electricity meter
telemetry and stayed there.


Tom


> -----Original Message-----
> From: link-bounces at mailman1.anu.edu.au 
> [mailto:link-bounces at mailman1.anu.edu.au] On Behalf Of Robin Whittle
> Sent: Tuesday, 24 March 2009 5:46 PM
> To: link at anu.edu.au
> Subject: Re: [LINK] BPL
> 
> 
> Hi Stephen,
> 
> I did not abuse you.
> 
> I stated that your optimism seems to be unaffected by the 
> efforts of me and others to help you understand the real 
> limitations of BPL.  I also stated that in contrast to most 
> people on this list, you do not seem to take any interest in 
> the detailed information other people are going to some 
> trouble to offer you.
> 
> Those are negative value judgements about your the way you 
> appear to have formed your opinion about BPL and the way you 
> have conducted yourself in this discussion.  Insults and 
> abuse would be far more broad-brush and inflammatory.
> 
> Others can judge how well my statements are supported by the 
> record of discussion.  I think they are well supported and I 
> stand by them.
> 
>   - Robin
> 
> 
> _______________________________________________
> Link mailing list
> Link at mailman.anu.edu.au 
> http://mailman.anu.edu.au/mailman/listinfo/lin> k
> 
> 
> 
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