An interesting piece of information has just turned up....
Background: I was working on an overlay map for North America, and
discovered a number of discrepancies amongst available reference sources and
existing maps as to where exactly some of the ITU/IARU zone boundaries were.
So, I thought the best idea would be to go to the very top. I therefore sent
an email requesting the definitive ITU zone definitions to the IARU
president, Larry E. Price, W4RA LPrice@iaru.org
To quote from his reply :
> Tim - you have to keep in mind that the ITU has one administrative purpose
> for having zones that has nothing at all to do with amateur radio.
> However, various amateur radio organisations decided to have both awards
> and operating events on the air based on the idea of zones.
> But, since this is not why the zones exist as far as ITU is concerned, the
> sponsors of these amateur events are free to interpret the zone boundaries
> any way they wish. So, there might not be a single "official amateur radio
> zone list."
> For the US & Canada, the interpretation by ARRL is found in The ARRL
> Operating Manual, desk top reference, page 12 which defines the
> boundaries between US States and Canadian provinces.
> If you have more questions about any particular contest or award, they
> should be directed to the sponsor.
> 73
> Larry, W4RA
I thus went for a bit of a search on the Internet once more, and found some
definitions from the ARRL, the RSGB, and the IARU:
http://www.arrl.org/contests/vev0vy.html
06 W-K-N-A U.S.A. (Washington, Oregon,
California, Nevada, Idaho,
& that part of Montana,
Utah & Arizona west of
110 Deg. W.)
http://www.g3wkl.freeserve.co.uk/awards/wituz.html
6. W6, W7 (excluding Wyoming & Montana east of 110W)
http://www.iaru.org/ituzonesc.gif
This map provided on the IARU's homepage, and copied frequently on many home
pages, shows a third definition !
This is just one example of discrepancies, noted straight away. There may be
others. On a flippant note, I could say that if you lived in parts of
Montana it's now officially possible to be in two places at once ! On a more
serious note, it seems to me suprising that all IARU member societies can't
come to a common zone definition.
73s, Tim EI8IC
www.qsl.net/ei8ic/
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