JA4FKX — FT8 station from Japan

Japan Grid: ?

Amateur radio station JA4FKX operating from Japan. 509 FT8 spots received at SO8OO WebSDR, 59 CQ calls, active on 40m, 20m, over 17 days, best SNR +17 dB. Heard between 2026-04-21 and 2026-05-11.

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Overview

509
Total spots
59
CQ calls
17
Days active
-3 dB
Avg SNR

Bands

20m 40m
First seen: 2026-04-21
Last seen: 2026-05-11 17:57 UTC

Frequent QSO partners observed at SO8OO

Stations JA4FKX worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJA4FKXPartnerPartner SNRMsgs
05-11 19:57 40m -9 / - AO3RKB -24 / -6 2 ✓ Verified
05-11 19:08 20m -2 / - M0GQC - / +6 2 Partial
05-11 19:05 20m +2 / - IW0HOS +6 / -11 4 ✓ Verified
05-11 19:01 20m -11 / - F4NGC - / - 2 Partial
05-11 19:01 20m +4 / - HB9TIH - / -19 4 ✓ Confirmed
05-11 18:52 20m 0 / -10 TL8GD -2 / -4 4 ✓ Complete
05-11 18:51 20m 0 / - PE1JLZ - / - 3 Partial
05-11 18:48 20m - / -12 EA5GJ +2 / - 2 ✓ Confirmed
05-11 18:46 20m -14 / -10 OE1AES +4 / -17 4 ✓ Complete
05-11 18:45 20m +3 / - IU1WCZ - / -4 2 Partial
05-11 18:42 20m -10 / -10 EA7TS +4 / - 4 ✓ Verified
05-11 18:41 20m - / -18 DJ9BX 0 / - 3 Partial
05-10 20:53 40m -6 / - EA5CQM - / - 3 Partial
05-10 20:44 40m -7 / - EA5CQM - / - 5 Partial
05-10 19:55 20m - / -15 EI3IXB -14 / - 2 Partial
05-10 19:36 20m - / -9 G4IBH -14 / - 2 Partial
05-09 19:42 20m +12 / - F5SHH - / - 2 Partial
05-09 19:42 20m +2 / - EA3ADX - / -12 5 Partial
05-09 19:41 20m - / - SP8HJM +16 / - 2 ✓ Confirmed
05-09 19:36 20m -5 / -10 IZ0TKD +12 / +1 10 ✓ Complete
05-09 19:34 20m +7 / - M6TVD - / - 5 Partial
05-09 19:34 20m -1 / - SP5EXA - / - 3 ✓ Confirmed
05-09 19:32 20m - / -11 IU2UDS +8 / - 3 ✓ Confirmed
05-09 19:32 20m +11 / - ON3MOH - / - 4 Partial
05-09 19:31 20m -7 / - F3DD - / - 3 Partial
05-09 19:17 20m - / - G6BWP -2 / - 4 Partial
05-09 19:14 20m -19 / -12 PD0LK 0 / - 2 Partial
05-09 19:13 20m - / - G6BWP +4 / - 2 Partial
05-05 19:21 20m - / -13 F4LAV +1 / - 2 Partial
05-05 19:18 20m - / -15 OE2GRN +2 / - 2 ✓ Confirmed
05-05 19:17 20m +4 / - EA1FDZ - / - 2 Partial
05-05 19:16 20m -8 / - UT5MD - / - 2 Partial
05-05 19:12 20m - / -18 IK2GXE +6 / - 3 ✓ Confirmed
05-05 19:07 20m - / -8 OE5FSL -1 / - 2 Partial
05-05 19:05 20m -8 / -4 EA7EZ -4 / -17 3 ✓ Complete
05-04 20:12 40m -16 / - AO4RKB - / -14 3 Partial
05-04 19:35 20m - / -15 K7BWC -14 / - 2 Partial
05-04 18:25 20m -13 / - UW5KW - / - 3 Partial
05-04 18:21 20m -2 / - F4EDB - / -11 6 Partial
05-04 18:11 20m -5 / - F4EDB - / - 3 Partial
05-04 18:08 20m -14 / -12 IK4LZH -12 / - 4 ✓ Verified
05-04 18:07 20m -17 / - RL3T - / - 3 Partial
05-04 18:07 20m +2 / - F4EDB - / - 3 Partial
05-04 18:01 20m +4 / -11 EA1FGX -5 / -6 5 ✓ Complete
05-04 17:47 20m - / -10 DK5VH +1 / - 8 ✓ Confirmed
05-04 17:45 20m - / -12 DL3FH +11 / - 2 Partial
05-03 19:58 20m - / -9 DL3MCW +11 / - 3 ✓ Confirmed
05-03 19:57 20m -15 / -11 MM9ODX +10 / -6 3 ✓ Complete
05-03 19:54 20m - / -9 OH8KA +5 / - 2 Partial
05-03 19:53 20m - / -12 SQ9PD +2 / - 2 ✓ Confirmed

Station Log

40m 
UTC    dB  Freq  Message
192730  -7 2047  JA4FKX DL9JD JN47
201200 -12 1674  JA4FKX AO4RKB R-14 (x3)
202030  +6  763  JA4FKX <...> R-04
204445 -12 1830  JA4FKX EA5CQM IM97 (x8)
195700  -9 1274  JA4FKX AO3RKB R-06
195715 -24 1274  AO3RKB JA4FKX RR73
20m 
UTC    dB  Freq  Message
190145  -9 1691  JA4FKX F4NGC IN95
190145  -1 1383  JA4FKX HB9TIH JN36 (x2)
190245 -13 1690  JA4FKX F4NGC IN95
190245  +4 1383  JA4FKX HB9TIH 73
190415  +1  677  JA4FKX F4HJN JN37
190545  +5 1778  JA4FKX IW0HOS -11
190545  -9 2131  JA4FKX PD2FS R-06
190615  +4 1778  JA4FKX IW0HOS -11 (x2)
190700  +6  678  IW0HOS JA4FKX 73
190730  +0  678  RU5A JA4FKX -05
190815  +1 1577  JA4FKX M0GQC IO91 (x2)
191115  -9 1444  JA4FKX DL0BSO JO42

SNR History by Band