[Dxbase] ITU Zones

Thu Feb 12 07:40:31 EST 2009

Hello Gary
I am sorry but you have been assured wrongly!!!
On behalf of RSGB, and based on some very detailed research by G3KMA and G3HTA, I wrote a paper on the definition of ITU Zones for amateur use for the IARU Region 1 conference some year back.
This paper was eventually adopted by ALL IARU Regions which includes the USA!
I quote
W9 (IL, WI west of 90W) in ITU zone 7
W9 (IL, WI east of 90W) in ITU zone 8
ITU zones are used by the ITU for broadcast purposes and have been used for Amateur Radio for contests and awards. They are defined largely by lines of latitude and longitude (not state boundaries!)
ARRL had previously published a version of the ITU zone boundaries which conveniently bent around some state boundaries but this was superceded by my papaer adopted by all IARU regions including ARRL
There many other exceptions where national boundaries are crossed by ITU zones and some countries like UA/0 have many ITU zones in them.
73 Fred
G4BWP
Editor RSGB Prefix Guide - available from ARRL and other outlets
 ----- Original Message ----- 
 From: Gary AL9A 
 To: dxbase at mailman.qth.net 
 Sent: Thursday, February 12, 2009 12:58 AM
 Subject: Re: [Dxbase] ITU Zones
 Ok, now that I've been assured that IL is in ITU Zone 8 causes some 
 questions. How in the world did I get my IL mdb file set up so that the ITU 
 default was 6 and not 8? Next question: How do I fix these in my log? I 
 can't just find and replace all 6's with 8's as some probably should be in 
 zone 6. If I set up my TQSL with the correct zone numbers and then upload 
 the logs with the bad numbers will that create a problem for LOTW users? 
 Any help appreciated.
 73,
 Gary AL9A
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