[ADXA] E5 North Cook -vs- E5 South Cook

[Sandy Hutson]

Our many decades old Delta DX System several page booklet with country prefixes had the initial No. Cook as ZK1N and So. Cook was ZK1S. Then the E51 came into play years later. The ZK1 No. Cook was the same as Manhiki. The prefix listings also had headings at top of the pages of bands 160-80-40 20-15 and 10m. No WARC bands way back then. Gosh I have a lot of old papers and lists, etc. Glad I did not throw them away. 
San YY

Sent from Mail for Windows 10

From: w5zn at w5zn.org
Sent: Wednesday, December 30, 2020 3:47 PM
To: adxa
Subject: [ADXA] E5 North Cook -vs- E5 South Cook

Steve N4JQQ and I were having an email exchange today about North Cook and South Cook Island's both now having the same prefix E5. You old dogs will recall they have been different throughout history, and even more so before they were call "Cook" Islands.
So, the question was how do you tell the difference between the two based on the callsign since two separate DXCC entities have the same callsign prefix. Somehow in my mind I though the North Cook stations would be something like E51Nxx and South Cook would be E51Sxx or something like that but I can't find anything to support that wild theory that exists in my head.
Can someone enlighten me? Bill Kennamer, being our DXCC resident expert historian can you set me straight?
Thanks
Joel W5ZN


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