JA9CWJ — FT8 station from Japan

Japan Grid: ?

Amateur radio station JA9CWJ operating from Japan. 223 FT8 spots received at SO8OO WebSDR, 7 CQ calls, active on 40m, 20m, 10m, over 37 days, best SNR +21 dB. Heard between 2026-04-21 and 2026-06-28.

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Overview

223
Total spots
7
CQ calls
37
Days active
-4 dB
Avg SNR

Bands

20m 40m 10m
First seen: 2026-04-21
Last seen: 2026-06-28 19:41 UTC

Frequent QSO partners observed at SO8OO

Stations JA9CWJ worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJA9CWJPartnerPartner SNRMsgs
06-28 20:03 40m -4 / - IK4DCW - / -20 2 ✓ Confirmed
06-27 20:30 20m -14 / - GB071RE - / -11 2 Partial
06-27 20:16 20m -19 / - YO3OBB - / -7 3 ✓ Confirmed
06-25 21:09 20m -7 / - EC5M - / -10 2 ✓ Confirmed
06-25 20:38 20m -10 / - 9A2Z - / - 4 Partial
06-19 21:03 20m - / -18 TJ1GD/P -7 / - 14 ✓ Confirmed
06-19 21:00 20m - / - YO7LMU -11 / - 3 ✓ Confirmed
06-15 20:50 20m -11 / - II1NAP - / - 2 ✓ Confirmed
06-15 20:46 20m -13 / - IT9JXC - / -3 3 ✓ Confirmed
06-15 20:41 20m -2 / - IU0NAD - / -11 4 ✓ Confirmed
06-13 20:49 20m +2 / - YO9PH -18 / -8 3 ✓ Verified
06-11 20:52 20m +9 / - RW4HDX - / - 3 Partial
06-11 20:50 20m +3 / -6 IT9GPQ -7 / - 4 ✓ Verified
06-11 20:48 20m -13 / - YM4KT -8 / -9 4 Partial
06-09 21:34 20m - / - TA4WH -13 / - 2 Partial
06-09 21:30 20m - / -9 AB0LR -13 / - 4 Partial
06-09 21:29 20m - / - 9A7RR -9 / - 2 Partial
06-09 21:27 20m - / -13 <...> -9 / - 4 Partial
06-09 21:01 20m - / -20 SP6FME -12 / - 4 ✓ Confirmed
06-09 20:59 20m -4 / - IQ4FE -11 / -13 3 ✓ Verified
06-08 21:56 20m -4 / - BG2FYO -13 / +3 5 ✓ Complete
06-08 21:56 20m -6 / - EA2DP - / - 4 Partial
06-08 21:55 20m -10 / -6 BD6KDP -2 / -3 3 ✓ Complete
06-08 21:54 20m -6 / -5 IQ7PU -7 / -7 4 ✓ Complete
06-08 21:50 20m +9 / -7 DR800WE -1 / -18 4 Partial
06-08 21:28 20m -17 / - IK8IOI +1 / - 2 ✓ Verified
06-07 21:46 20m - / -19 SP3CET -14 / - 4 ✓ Confirmed
06-07 21:45 20m -2 / -14 EB4EYD -16 / - 2 ✓ Verified
06-07 21:39 20m +6 / - TA4INO - / -10 2 ✓ Confirmed
06-07 16:32 20m - / - TC0GYT -14 / - 2 Partial
06-07 16:31 20m -20 / - HS0ACS -16 / -4 2 ✓ Verified
06-07 10:09 10m +10 / - 5H1KB - / -6 2 Partial
06-06 22:10 20m - / - 9X5KM -10 / - 2 Partial
06-06 21:56 20m - / - 9X5KM -8 / - 2 Partial
06-06 21:53 20m +8 / - RM1F -7 / -23 3 ✓ Verified
06-06 21:51 20m +1 / -15 IZ3EAW -7 / -15 5 ✓ Complete
06-06 19:42 20m - / - EA5JFO -8 / - 2 Partial
06-06 19:35 20m -14 / - IT9NKT/P - / - 2 Partial
06-06 19:35 20m -3 / - RM1F - / - 3 Partial
06-06 19:32 20m -1 / -10 IQ9BF -8 / -16 6 ✓ Complete
06-06 19:26 20m - / - EP2AES -14 / - 2 Partial
06-06 19:25 20m -12 / - IQ0OS -16 / -17 4 ✓ Complete
06-05 21:36 20m - / -16 YO3AI -15 / - 2 ✓ Confirmed
06-04 21:10 20m -10 / - OY5T -7 / -12 5 Partial
06-04 21:08 20m - / - OJ0Z -9 / - 3 Partial
06-04 21:02 20m - / -10 <...> -5 / - 2 Partial
06-03 22:24 20m -4 / - IU4RWW - / -8 4 Partial
06-03 22:20 20m -8 / -15 EG53DMM -20 / -22 6 Partial
06-01 21:23 20m - / -11 IK5FCH -6 / - 2 Partial
06-01 21:22 20m - / - IU7VOL -7 / - 2 Partial

Station Log

20m 
UTC    dB  Freq  Message
203915  -7 1001  JA9CWJ 9A2Z JN86 (x2)
205615 -11 2079  JA9CWJ EA6TU JM19 (x2)
210015  -5 2988  JA9CWJ DG6YMK JO31
210115 -23 2149  JA9CWJ UB6OCP 73
210930  -6 2229  JA9CWJ EC5M -10 (x2)
211230 -11 2257  JA9CWJ UT3RO KO60
201615 -20 1245  JA9CWJ YO3OBB -07 (x3)
203030 -15 2375  JA9CWJ GB071RE -11 (x2)
214100  -4 2554  JA9CWJ F/HB9GVX -25
40m 
UTC    dB  Freq  Message
210445  +3 1789  JA9CWJ 9A60CBM -15
210515 -18 1297  JA9CWJ BG3NQT -16 (x2)
213630  +4  686  JA9CWJ SX8LGT -09
212630 -17  526  JA9CWJ JT0LR -09
201930 +19 2887  JA9CWJ SX20RCK -12
205630  -4  839  JA9CWJ <...> -17
195815  +6 1704  JA9CWJ LZ100LZ -09
200100 +10  552  JA9CWJ SX1FLY -15 (x3)
200200  -6  646  JA9CWJ II9RICT -22
200330  -5 1631  JA9CWJ IK4DCW -20 (x2)
10m 
UTC    dB  Freq  Message
100115 -11  466  JA9CWJ ZS6MGM -09
100900 +13  409  JA9CWJ 5H1KB -06 (x2)

SNR History by Band