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4101 kHz CW What Kind of Code Is This? Wabun? SKATS?

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Exo:
Report
0550UTC 2018 OCT 11
4100.0 kHz USB alternating with CW on 4101.3 kHz, HLVW South Ko rean language, South Ko rean CW code, strong signals, good readability

As a result of the log today, and the stronger signals which provided clear ID of the language, the ID of the stations are now known.
South Ko rean fishing vessels in mid-Pacific.
They are using a Ko rean language and a Ko rean CW code.
One station is Sajo Industries vessel 306 Oryong, with callsign HLVW.
The other stations also appear to be Sajo Industries vessels.

If anyone could provide a link to a table of their Kore an CW code, it would be appreciated.

For the full story and some good recordings click here.

ChrisSmolinski:
Thanks for these posts - I believe I have received this CW when monitoring the Windy beacon on 4102.8 kHz. In fact I heard some just now (1120z). Also some weak voice noted on 4100 USB.

Exo:

--- Quote from: ChrisSmolinski on October 15, 2018, 1121 UTC ---Thanks for these posts - I believe I have received this CW when monitoring the Windy beacon on 4102.8 kHz. In fact I heard some just now (1120z). Also some weak voice noted on 4100 USB.

--- End quote ---

You are doing extremely well to receive these ships in mid-Pacific and western-Pacific from your location.

At other time slots, the "Sajo Oryong" Sajo Industries fishing fleet has also been logged on:
4111 kHz USB voice / 4112.3 kHz CW,
4189.kHz CW
6868 kHz USB voice

S. Kor ea seems to be one of the few nations with a fully functional and active commercial marine HF CW enterprise.

It seems that we've just scratched the surface on logging the Sajo Oryong huge fleet HF operation.
Perhaps they have been somewhat overlooked up until now, possibly because of the few western ops who understand their language, and even fewer who can copy their CW code.

An educated guess is that their CW code is a specific S. Kor ean language code that is utilized for direct writing of Kor ean characters.
It seems somehow different from SKATS code, which is a standard way to send Kor ean Han gul (characters) writing.
Perhaps the mystery CW characters are run-together CW jamo SKATS Han gul characters.

SKATS = Standard Kore an Alphabet Transliteration System, which is an adaptation of English Morse characters for sending/receiving Hang ul.

SKATS
Consonants   Vowels
Han gul SKATS Han gul   SKATS
ㄱ   L   ㅏ   E
ㄴ   F   ㅑ   I
ㄷ   B   ㅓ   T
ㄹ   V   ㅕ   S
ㅁ   M   ㅗ   A
ㅂ   W   ㅛ   N
ㅅ   G   ㅜ   H
ㅇ   K   ㅠ   R
ㅈ   P   ㅡ   D
ㅊ   C   ㅣ   U
ㅋ   X   ㅔ   TU
ㅌ   Z   ㅐ   EU
ㅍ   O   ㅖ   SU
ㅎ   J   ㅒ   IU


SKATS Hang ul dash-dot Table


SKATS Han gul to English Letters Table


Mystery S. Kore an CW characters

Some of the mystery CW characters may be in this chart below:


A comparison of kore an transliteration systems

R4002:
These guys are all over the place, 4 and 6 MHz frequencies - I imagine they have operations on the higher bands as well, 8 MHz and 12 MHz perhaps - if their fishing operations are as wide-ranging as it seems. 

I thought Japan was another heavy user of HF marine CW still as well. 

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