[CQ-Contest] IARU

[Frank Hunt]

Tim,

Your map and all the other "amateur" ITU maps are based on the the ITU 
CIRAF zone map. Even a close examination of your map shows France is in 
3 zones.

The significant difference between the two is the water only zones, ie. 76-85 
(CIRAF) and 76-90 (Amateur). (JD1mt is an exception)

So as I said before it's best to use the tables rather than maps to define what 
zone you or the other station is in.

73, Frank ZL4BR
-------------------------------------------------------------------------------------------
On 30 Jun 2006 Tim Makins wrote:

> The CIRAF Zone map is not the same as the Amateur one - CIRAF only have
> zones up to 84, whilst Amateurs go to 90.
> 
> France is in Zone 27, not 28 or 37.
> 
> 73s Tim EI8IC
> http://www.mapability.com/ei8ic/maps/ituzone.html
> 
> 
> ----- Original Message -----
> From: "Frank Hunt" <zl2br at ihug.co.nz>
> To: "CQ Contest" <cq-contest at contesting.com>
> Sent: Friday, June 30, 2006 4:49 AM
> Subject: Re: [CQ-Contest] IARU
> 
> 
> > All those 3 maps show variations when compared to the ITU CIRAF
> > Broadcasting Zones map as published by the ITU:
> >
> > http://www.itu.int/ITU-R/terrestrial/broadcast/hf/refdata/maps/index.html
> >
> > The zone boundaries very rarely follow physical or political boundaries,
> many
> > countries are in multiple zones, ie. France is zone 27, 28 & 37 !
> >
> > Obviously this could lead to some confusion, so best guide would be to use
> > the table of ITU zones as shown on the ARRL web site:
> >
> > http://www.arrl.org/contests/announcements/prefixtable.html
> >
> > There is also an explanation of the zones for US and Canada:
> >
> > http://www.arrl.org/contests/vev0vy.html#wkna
> >
> > 73, Frank ZL4BR
> > --------------------------------------------------------------------------
> -------------------------
> > On 29 Jun 2006 Kenneth E. Harker wrote:
> >
> > >      So, there have been several posts referencing maps or lists of
> > > information about ITU zones:
> > >
> > > JF9EXF: http://www4.plala.or.jp/nomrax/ITU/
> > > ICOM:   http://www.icomamerica.com/downloads/WorldMap_ITU_LR.pdf
> > > K3RXK:  http://www.spacetoday.org/k3rxk/ITUzones.html
> > >
> > > There are incosistencies between these sources in a few places, and
> mostly
> > > it is the ICOM map that seems to be in error:
> > >
> > > * ICOM and JF9EXF show the boundaries between zones 1 and 2 as longitude
> > >   139W, which would put some of KL7 in zone 2, but the K3RXK description
> > >   says all of KL7 is in zone 1.
> > >
> > > * The ICOM map shows the boundary between zones 7 and 8 to be longitude
> 92W.
> > >   JF9EXF and K3RXK shows the boundary to be the Mississippi River with
> all
> > >   of Louisiana and Minnesota in zone 7.
> > >
> > > * The ICOM map shows the boundary between zones 18 and 19 as longitude
> 30E.
> > >   JF9EXF and K3RXK shows the boundary to be the political boundary
> between
> > >   Finland (OH) and European Russia (R).
> > >
> > > * The ICOM map shows Nigeria (5N) in zone 47, but JF9EXF and K3RXK put
> > >   it in zone 46.
> > >
> > > * The ICOM map shows the boundary between zones 55 and 59 as latitude
> 29S.
> > >   JF9EXF and K3RXK agree that all of South Australia is in zone 59, not
> > >   zone 55.
> > >
> > > Did I miss anything?
> > >
> > > --
> > > Kenneth E. Harker WM5R
> > > kenharker at kenharker.com
> > > http://www.kenharker.com/
> > >
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> > >
> >
> >
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