[Skimmertalk] Convergence - Contest Skimmers and the Reverse Beacon Network
Pete Smith
n4zr at contesting.com
Wed Apr 15 05:19:48 PDT 2009
The ARRL CAC's decision on the use of CW Skimmer has an interesting
nuance. Skimmers situated outside the 500-yard station circle may be
used by SO Unlimited and Multi-Op competitors, so long as "a closed
or dedicated communication link" is not used.
Some local clubs have already set up Skimmers for their members to
use during contests, evoking memories for some of us of the 2-meter
voice spotting nets of many years past. Some multi-ops are
contemplating the establishment of nearby but off-site Skimmers, to
avoid problems with interference from their own transmitters. Some
individual SOU operators are thinking about setting up remote
Skimmers (at a mountain cabin, for example).
The question is, how can these plans be made to conform to the letter
and spirit of the CAC decision. Does simply deploying the remote
Skimmer on a publicly-accessible IP address meet the intent of the
CAC? Or does the IP address have to be publicized in some
more-or-less widely-distributed way?
Enter the Reverse Beacon Network (RBN) <http://reversebeacon.net> or
<http://skimmer.dxwatch.com>. Skimmers sending spots to the
Reverse Beacon Network can have their IP address publicized on the
RBN site, and have links to them displayed there. That would
certainly meet the CAC requirement of not being "closed or dedicated"
communication links. Besides, imagine the potential of 20 to 50
reverse beacons, closely co-located with major contest stations or
clubs, all reporting what they hear and storing it for analysis after
the contest.
This is strictly a hypothetical example, but suppose HC8N set up a
remote Skimmer and forwarded spots to the RBN during the WPX CW
Contest this May. Then, after the contest, competitors from around
the world could compare their signals with one another as heard at
HC8N, rather than at some anonymous reverse beacon a few
thousand kilometers away.
Adding the RBN to the configuration of the remote Skimmer would be
trivially easy. Install and run the RBN Aggregator software (a
simple 2-minute download and install) alongside CW Skimmer. That's
all it takes. Set it up in a batch file so that if anything knocks
your Skimmer off the air, you can restart easily. Voila - you're
unquestionably legal, and you'll also be contributing to a databank
that will be a lot of fun to revisit after the contest.
To download the Aggregator, visit
<http://skimmer.dxwatch.com/downloads/skimmer_aggregator_v0.21beta.zip>.
Download the .exe and its companion .dll file and put them in your CW
Skimmer program directory. Start Skimmer and the Aggregator, and
you're a contributor to the Reverse Beacon Network. It really
couldn't be much easier.
73, Pete N4ZR
the World Contest Station Database is back, and updated daily at
www.conteststations.com
Visit the Reverse Beacon Network at http://reversebeacon.net
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