JA4JKO — FT8 station from Japan

Japan Grid: ?

Amateur radio station JA4JKO operating from Japan. 141 FT8 spots received at SO8OO WebSDR, 14 CQ calls, active on 80m, 40m, 20m, over 18 days, best SNR +22 dB. Heard between 2026-04-21 and 2026-05-14.

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Overview

141
Total spots
14
CQ calls
18
Days active
-2 dB
Avg SNR

Bands

80m 20m 40m
First seen: 2026-04-21
Last seen: 2026-05-14 20:03 UTC

Frequent QSO partners observed at SO8OO

Stations JA4JKO worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJA4JKOPartnerPartner SNRMsgs
05-14 22:13 20m - / - HB9TIH -17 / - 3 Partial
05-14 22:06 20m - / -14 SP6FCQ -8 / - 4 ✓ Confirmed
05-14 22:03 20m -22 / -17 G3VCQ -10 / -11 2 Partial
05-14 21:58 20m - / - HB9TIH -16 / - 2 Partial
05-14 21:57 20m - / -14 PD0OTH -16 / - 2 Partial
05-14 21:53 20m - / -17 PD2PG -13 / - 2 ✓ Confirmed
05-14 21:48 20m -19 / - G0MGK - / - 2 Partial
05-14 21:35 20m +6 / -10 F5IHD -6 / -7 4 ✓ Complete
05-13 21:59 20m - / -13 OM3LU 0 / - 2 Partial
05-13 21:56 20m - / -15 G4IFX 0 / - 3 ✓ Confirmed
05-13 21:44 20m - / - OM4ASL +5 / - 2 Partial
05-13 21:43 20m - / -15 ON5MX -1 / - 2 ✓ Confirmed
05-13 21:41 20m - / -19 LX1FP -8 / - 3 ✓ Confirmed
05-12 22:09 20m - / - PD0PAT -6 / - 2 Partial
05-12 22:07 20m - / - M8XDZ -6 / - 2 Partial
05-12 22:06 20m - / -16 OM1DMT -2 / - 3 ✓ Confirmed
05-12 22:03 20m - / -15 ON5DVO -3 / - 4 ✓ Confirmed
05-12 21:58 20m - / - G6BCC 0 / - 3 Partial
05-12 21:51 20m - / -2 OK4PA +1 / - 2 ✓ Confirmed
05-12 21:45 20m - / -18 IK8PLJ -2 / - 3 Partial
05-12 21:42 20m 0 / - CT7AUT -5 / -6 5 ✓ Verified
05-12 21:38 20m - / - SV8IIQ 0 / - 2 ✓ Confirmed
05-12 21:38 20m - / -18 ON3AVT 0 / - 4 Partial
05-12 21:35 20m - / -12 TA3MPK -1 / - 3 Partial
05-12 21:33 20m +8 / -14 9H4JX -3 / -4 5 ✓ Complete
05-12 21:31 20m -1 / - EA5FDA -2 / - 2 ✓ Verified
05-12 21:27 20m 0 / -12 CR7BRV -3 / -11 4 ✓ Complete
05-12 21:26 20m - / -17 DL1EHG -4 / - 2 Partial
05-11 21:55 20m - / - 2E0BTX -15 / - 3 Partial
05-11 21:48 20m - / -10 <...> -9 / - 5 Partial
05-11 21:45 20m - / -16 IK4PLU -10 / - 3 ✓ Confirmed
05-11 21:44 20m - / - DL3RC -10 / - 2 Partial
05-11 21:42 20m - / -15 M0PBG -11 / - 4 ✓ Confirmed
05-11 21:32 20m - / -15 DL6BCZ -8 / - 4 Partial
05-11 21:31 20m - / - M1DDD/P -10 / - 2 ✓ Confirmed
05-10 22:08 20m - / - DK2LG -2 / - 2 Partial
05-10 22:05 20m +16 / -8 IW2NZD -4 / -13 6 ✓ Complete
05-10 22:02 20m - / -14 DK2LG -7 / - 6 Partial
05-10 22:00 20m - / -6 IT9KHI -5 / - 2 ✓ Confirmed
05-10 21:57 20m - / - CR7BRV -4 / - 2 Partial
05-10 21:56 20m - / - F1POK -3 / - 2 Partial
05-10 21:54 20m - / -14 DJ5QV +3 / - 2 Partial
05-10 21:53 20m - / - G0RIB +4 / - 2 Partial
05-10 21:51 20m - / -10 EY7BM +1 / - 3 ✓ Confirmed
05-10 21:47 20m - / -13 CR7BUJ -1 / - 6 ✓ Confirmed
05-10 21:41 20m - / - PE1RLZ -1 / - 5 Partial
05-10 21:38 20m - / - SM1NFH -2 / - 2 ✓ Confirmed
05-10 21:36 20m +6 / - EA5FAY - / +6 4 Partial
05-10 21:28 20m - / - UR7EZ -2 / - 2 Partial
05-09 23:14 20m -10 / - YE4FNN - / -12 2 Partial

Station Log

20m 
UTC    dB  Freq  Message
215600 -16  989  F4FBC JA4JKO 73
215700 -14  989  PD0OTH JA4JKO PM64 (x2)
215830 -16  989  HB9TIH JA4JKO PM64 (x2)
220330 -22 1478  JA4JKO G3VCQ -11
220345 -10  990  G3VCQ JA4JKO R-17
220600  -4  990  SP6FCQ JA4JKO PM64 (x4)
220945 -16  989  EA5KBG JA4JKO PM64
221300 -16  989  HB9TIH JA4JKO PM64 (x3)
40m 
UTC    dB  Freq  Message
204545 +18 2718  JA4JKO DL3GA -13 (x2)
204730 -12 2718  IK0HBN JA4JKO PM64
204830 -14 2719  IZ0COC JA4JKO PM64 (x2)
205645  -3 2719  JA4JKO R7OV KN87 (x5)
211530 +15 2886  JA4JKO <...> -21
205700  -1  356  JA4JKO AU2M -11 (x2)
204730 -15 1381  JA4JKO SX100PAOK -15
204930 +22 2849  JA4JKO IW8RCN -15
80m 
UTC    dB  Freq  Message
221615  -6  916  JA4JKO SM7IYM JO65

SNR History by Band