Worked All-Time DXCC entities on 50MHz from Japan

This list is still under construction.
If you know any earlier QSOs or other additive information, please E-mail to

Special thanks to 7J6CCU, A61AH, A92GR, C31BO, CO8LY, DJ0ACY(JA1RDW), DL6DQW(C98RF), EA7KW(EH7KW), EI3IO, ES1CW, ES2RJ, F5NHJ(J28NH), FJ5DX, G4KUX(YA4F), GU7DHI, HA3MQ, HK3YH, IK0FTA, IS0QDV, IZ6BRN(AP2WAP), JA1BWA, JA1DXA(K5K), JA1RJU, JA1UIU, JF1IST(A52A), JH1XYR, JI1NJC(ZK1NJC), JI1UHZ, JK1OBX, JN1JFC, JO1PSX, JA2DDN, JE2IIH, JG2BRI(3D2SM, AH3C/KH5J, EK0JA), JG2TSL, JI2EVL, JJ2GAZ, JR2HCB, JR2HOG, JF3MYA, JG3IFX, JH3LBD, JL3IQE, JQ3DUE, JR3HED, JH4IFF, JH4JPO, JH4RHF(BV9P), JN4MMO, JA5AIE, JR5EPQ, JH6PFY, JR6EXN, JR6GV, JR6HI, JR6VSP, JR6WPT, JS6CDB, JA7WSZ, JH7VEP, JA8BOV, JE8CIC, JH8LCV, JH8SIT, JL8GFB, JA9SJI, KH7RS(KH6JEB), KK5DO, LZ2DF, N6AW, N7XR(KD7P), OH1ZAA, OH2TI, OK1DO(OK1DDO), OK1MU(TA2ZAF), OK2ZW, PY2XB, PY5CC(PW0T), SM0JHF(D44CF), SM7FJE, SP6GWB, SU1SK, SV9CVY, TG9AJR, UA0SC, UK9AA, W0GJ(A52A), W2FB, W6JKV, W7KKE(K7HIX), W7XU(9G5AN), YO7VJ, YO7VS, Z32ZM, UKSMG and JARL.

(#1) This QSO is by "Multi-Hop" Sporadic-E layers.

(#2) This is Long Path QSO.

(#3) This is EME QSO.

(#4) This QSO is notable record from JD1 Ogasawara Islands.

(#5) These QSOs are notable records from Okinawa as KR6-8 Ryukyu Islands era. J9AAK was by Major W.O. Brewer. J9AAO was by W3LSZ, Al Diem. They and KR6AK were U.S. military personnel at Okinawa (Ryukyu Islands). KR8 Okinawa Japanese operator's 6m activity began from Nov.5 1965.

(#6) This QSO was made at 08:30PM United States Eastern Standard Time on Oct.17 1947 according to "The World Above 50Mc" in the QST Dec.1947. It was 01:30UTC Oct.18 1947.

(#7) This is World's First Ever 6m Long Path QSO.

(#8) Genuine first 2way QSO on 6m band in Japan is unknown. Pre-World War II in 1937-38, some J2 (Tokyo-Yokohama area) pioneer amateur guys succeeded 2way QSOs on 56MHz. They were definitely scenes of "Genesis of VHF in Japan". After WWII, all Japanese amateur radio activities were prohibited by orders of Allied Occupation Forces until end of their occupation in 1952. Postwar first 2way QSO on 50MHz band in Japan was made by between Allied Occupation Forces personnel amateurs. Also first 2way QSO by between Japanese amateurs after restart in 1952 is similarly unknown.

(#9) They were Allied Occupation Forces personnel in occupied Japan after WWII. W2CDJ/J2 was from Yokohama, J2AAO was from Tokyo, according to "The World Above 50Mc" in the QST Aug.and Sep.1947.

(#10) This QSO is maybe first time by Japanese amateur.

(#11) Did anyone of JAs work on 6m with former KG6I Bonin and Volcano Islands (e.g. Iwo Jima) station before reverted to Japan at June 26 1968?  (Pse help to JA hams!)

(#12) This QSO was made at 22:52UTC according to "The World Above 50Mc" in the QST Dec.1956 and Jan.1957.

(#13) Guam Island before Oct.31 1962 is counted as Mariana Islands (Now KH0) by DXCC rule.

(#14) JA1AUH, JA1AXE, JA1GP, JA2IF, JA2GR and JA2AQ worked KH6PP, KH6NS and KH6BRG at 23:05 to 23:20UTC on Nov.15 1956 according to "About VHF" column in the Japanese "CQ Ham Radio" magazine Dec.1956.

(#15) This QSO was made at 03:13PM Hawaiian Time on Jan.25 1947 according to "The World Above 50Mc" in the QST Mar.1947. It was 01:13UTC Jan.26 1947.

(#16) Several stations worked P5RS7 by 3W3RR, Romeo Stepanenko and his group in Dec.1992. Their QSOs are not accepted for DXCC, because they QRVed from outside of North Korean territory. This QSO between P5/4L4FN and JJ2GAZ/1 is genuine World's First Ever 6m QSO from/with North Korea.

(#17) This KC6SZ was from Yap Island. Yap Island until Dec.31 1980 is counted as Western Caroline Islands (KC6), and it after Jan.1 1981 is counted as Federated States of Micronesia (V6) by DXCC rule, due to start controlled by FSM government. However, Palau (T8) is equal to former Western Caroline Islands (KC6), and Micronesia (V6) is also equal to former Eastern Caroline Islands (KC6) by DXCC rule. This KC6SX was from Koror, Palau Islands, and maybe first 6m QRV from "genuine" Palau.

(#18) XY0RR is DX-pedition by 3W3RR, Romeo Stepanenko and his group. Rumor says, their QRV was maybe from outside of Myanmar's territory, but accepted for DXCC. XZ1N is another "first" after Romeo.

(#19) Did anyone of JAs work on 6m with KG6AAY, K0PYV/KG6 or WA0ROP/KG6 before this QSO?  (Pse help to JA hams!)

(#20) Only stations with T9 prefixes count for DXCC after May 12 1993. 4N4, 4O4, YT4, YU4 and YZ4 stations (located in the areas controlled by Serbia), as well as 9A11 stations (located in the areas controlled by Croatia), are not accepted. [425 DX News #398]

(#21) 4N4, 4O4, YT4, YU4 and YZ4 stations are not Yugoslavia after October 15 1991. They are in the territory of Bosnia-Herzegovina, but not accepted for DXCC as T9 after May 12 1993. (See #20)

(#22) This QSO is only by F2 layer. Other all QSOs are by EME.

(#23) QSOs by F2 layer are only in Cycle22. Other QSOs after 2005 are by EME.

Worked All-Time CQ zones on 50MHz from Japan
All JA's wanted DXCC entities on 50MHz

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Last update : 2012/01/04
JI1CQA Nori Ito