JK1KSB — FT8 station from Japan

Japan Grid: ?

Amateur radio station JK1KSB operating from Japan. 141 FT8 spots received at SO8OO WebSDR, active on 80m, 40m, 20m, 10m, over 23 days, best SNR +19 dB. Heard between 2026-04-29 and 2026-06-27.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

141
Total spots
0
CQ calls
23
Days active
-4 dB
Avg SNR

Bands

80m 20m 40m 10m
First seen: 2026-04-29
Last seen: 2026-06-27 14:58 UTC

Frequent QSO partners observed at SO8OO

Stations JK1KSB worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJK1KSBPartnerPartner SNRMsgs
06-27 16:58 20m -7 / - YO4GIY - / -10 2 ✓ Confirmed
06-22 18:13 20m -9 / - DA1VID - / - 8 Partial
06-22 16:50 20m -14 / - IS0AEL - / -1 2 ✓ Confirmed
06-22 16:45 20m -7 / - F1SZC - / -9 7 ✓ Confirmed
06-22 16:32 20m -16 / - <...> - / - 2 Partial
06-20 20:06 80m 0 / - UF5F - / - 3 Partial
06-20 20:00 80m +7 / - RA3GZ - / - 3 Partial
06-20 19:57 20m - / - 9K2MP -18 / - 2 Partial
06-20 19:55 20m +8 / - M8KKH - / - 6 Partial
06-20 19:49 20m -21 / - G7IJI -5 / -9 2 ✓ Verified
06-19 18:40 20m - / -15 IS0LYN +8 / - 2 ✓ Confirmed
06-19 18:38 20m - / -10 BA8BLK +5 / - 2 ✓ Confirmed
06-19 18:32 20m - / -22 YO3OBB +5 / - 8 ✓ Confirmed
06-19 18:27 20m - / - DK1IJ -2 / - 4 Partial
06-19 18:23 20m - / - OE3PWR -5 / - 2 Partial
06-16 16:34 20m -19 / -12 SV5BYP -11 / - 2 ✓ Verified
06-16 15:56 20m - / -19 A61CK -9 / - 2 Partial
06-14 20:53 20m - / - 9K2MP -7 / - 14 Partial
06-14 20:46 20m - / - 9K2MP 0 / - 4 Partial
06-14 20:20 20m -2 / -11 9A5AZK +1 / -17 8 ✓ Verified
06-14 20:17 20m -11 / - RA3TD - / -6 4 Partial
06-14 20:17 20m -11 / -15 G4DBW +3 / -20 6 ✓ Complete
06-14 19:40 20m -2 / - PD1ADA - / - 2 Partial
06-14 19:40 20m -15 / - HB9VAA - / - 2 Partial
06-14 19:39 20m -15 / -17 HB9EKJ +2 / -14 4 ✓ Complete
06-13 18:50 20m -1 / - E77FN - / -21 5 ✓ Confirmed
06-13 18:26 20m - / - <...> -11 / - 9 Partial
06-11 18:49 20m - / -10 BA8BLJ +9 / - 2 ✓ Confirmed
06-11 18:47 20m - / -12 OK1UG +9 / - 3 ✓ Confirmed
06-11 18:41 20m +2 / -19 IS0LYN +10 / - 9 ✓ Verified
06-11 18:36 20m 0 / -16 EP2AES +10 / - 12 ✓ Verified
06-11 16:58 20m -2 / - UN7EAX - / - 2 Partial
06-11 16:58 20m - / - DL6LAG -12 / - 3 Partial
06-11 16:53 20m - / -14 A92AE -12 / - 2 Partial
06-09 19:50 20m +6 / - IK8INR/P - / -2 2 ✓ Confirmed
06-09 19:45 20m +2 / - IQ9BF -2 / -1 6 ✓ Verified
06-09 19:41 20m - / - MI9JGG -2 / - 6 Partial
06-08 14:52 10m -9 / - 7Q6M - / -6 2 ✓ Confirmed
06-07 16:57 20m -2 / - G1ROK - / - 2 Partial
06-07 16:53 20m - / -14 DG0OFT +5 / - 2 ✓ Confirmed
06-07 16:53 20m -7 / - G1ROK - / - 3 Partial
06-07 16:52 20m -2 / - EA1CQ - / - 2 Partial
06-07 16:50 20m -17 / -17 HS0ACS +5 / -8 5 ✓ Complete
06-07 16:49 20m - / -18 YO9PH +6 / - 2 ✓ Confirmed
06-07 16:48 20m -8 / - EA1CQ - / - 2 Partial
06-07 16:46 20m - / -21 DL5LV +7 / - 5 ✓ Confirmed
06-07 16:44 20m - / -15 TA3ZZ +5 / - 3 ✓ Confirmed
06-07 16:31 20m -5 / - R7DX - / - 3 Partial
06-07 16:27 20m -5 / - EA1CQ - / - 2 Partial
06-07 16:25 20m - / -2 UR3AHB -5 / - 3 ✓ Confirmed

Station Log

20m 
UTC    dB  Freq  Message
164845  -4  978  JK1KSB F1SZC R+01
165045 -14 1980  JK1KSB IS0AEL -01 (x2)
165700 -14 1505  JK1KSB II4PRCE -05
181315  -8  785  JK1KSB DA1VID JO31 (x8)
163530 +19 3051  JK1KSB DL6LAG RR73
165815  -7 2431  JK1KSB YO4GIY -10 (x2)
80m 
UTC    dB  Freq  Message
185800  -5 1907  JK1KSB SP7NC JO91 (x2)
193945  +7 2610  JK1KSB SQ9DJQ +06 (x7)
200000  +7 1403  JK1KSB RA3GZ KO92 (x3)
200600  -4 2349  JK1KSB UF5F KO98 (x3)
40m 
UTC    dB  Freq  Message
165745  -7 1361  JK1KSB RV6AVU R-08 (x2)
174215 -17  901  JK1KSB A61CK RR73
10m 
UTC    dB  Freq  Message
091930 -18 1180  JK1KSB TN8GD -13
145230  -7 1512  JK1KSB 7Q6M -06 (x2)

SNR History by Band