JK1KDD — FT8 station from Japan

Japan Grid: JN45

Amateur radio station JK1KDD operating from Japan (grid square JN45). 178 FT8 spots received at SO8OO WebSDR, 25 CQ calls, active on 20m, 10m, over 35 days, best SNR +21 dB. Heard between 2026-04-22 and 2026-06-22.

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

Overview

178
Total spots
25
CQ calls
35
Days active
-4 dB
Avg SNR

Bands

20m 10m
First seen: 2026-04-22
Last seen: 2026-06-22 16:41 UTC

Frequent QSO partners observed at SO8OO

Stations JK1KDD worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJK1KDDPartnerPartner SNRMsgs
06-19 19:38 20m -10 / - TJ1GD/P - / -12 2 ✓ Confirmed
06-18 18:39 20m +4 / - UD3T - / -6 2 ✓ Confirmed
06-18 18:39 20m +6 / - YO9DEH - / - 2 Partial
06-16 18:24 20m - / - Z34CMF -13 / - 2 Partial
06-12 19:39 20m -1 / - EA1B -6 / -20 4 ✓ Verified
06-12 19:24 20m +18 / - E70A - / -11 2 ✓ Confirmed
06-12 18:59 20m -10 / - RK3IR - / -15 2 ✓ Confirmed
06-11 17:44 20m +10 / -14 YM4KT -13 / -15 4 ✓ Complete
06-11 10:19 20m -16 / - UD8S - / -17 13 Partial
06-10 20:05 20m -7 / - A61OK - / -19 6 Partial
06-07 18:53 20m - / -14 SQ2OMK -15 / - 2 Partial
06-07 18:47 20m +7 / -14 R6DXP -12 / -16 5 ✓ Complete
06-07 18:43 20m +3 / - R7BI -6 / -16 5 ✓ Verified
06-07 18:42 20m -8 / -16 UA3IVF -12 / -15 3 ✓ Complete
06-07 18:24 20m -9 / - IQ9BH - / -13 2 Partial
06-07 18:21 20m +13 / - IK8PPG - / +1 3 ✓ Confirmed
06-07 18:11 20m +4 / - YO9PH - / -17 2 ✓ Confirmed
06-06 19:44 20m +5 / - HB10GBT - / -19 3 Partial
06-06 19:44 20m - / -15 F5OYA/P -12 / - 2 Partial
06-06 19:37 20m -9 / - OH3EZ -7 / -16 6 ✓ Verified
06-05 20:50 20m - / - 9H2TM -4 / - 2 Partial
06-04 20:10 20m - / - OJ0Z -9 / - 3 Partial
06-04 20:05 20m - / - OJ0Z -7 / - 3 Partial
06-01 18:53 20m - / - Z33B -14 / - 2 Partial
06-01 18:31 20m -8 / - BI1AFK -16 / - 2 ✓ Verified
05-31 18:43 20m - / -13 <...> -12 / - 2 Partial
05-31 18:35 20m -10 / - OE2LEX - / - 2 Partial
05-31 17:50 20m - / -2 BG4OOO -12 / - 2 ✓ Confirmed
05-31 17:44 20m -6 / - IV3VER - / - 2 Partial
05-31 17:38 20m +2 / - R6DJR - / -14 2 ✓ Confirmed
05-29 19:09 20m -5 / - R8LCP - / -8 2 ✓ Confirmed
05-28 18:32 20m +19 / - SV1OCN - / -14 3 ✓ Confirmed
05-28 11:18 20m +6 / - RV3TR - / -10 2 ✓ Confirmed
05-28 10:24 10m -20 / - BI8SSW - / -23 2 Partial
05-26 18:57 20m - / -15 R2EA/P -18 / - 2 Partial
05-24 18:17 20m -14 / - R3BV - / - 2 Partial
05-23 20:54 20m -7 / - 7Z1IS - / -14 8 Partial
05-23 19:28 20m +13 / -6 RL3T -13 / -25 6 ✓ Complete
05-23 19:19 20m +9 / - IZ2QGB - / -14 2 ✓ Confirmed
05-19 18:10 20m -7 / -17 M1DBW -12 / -19 7 Partial
05-17 17:50 20m -11 / - BG2FYO -15 / - 2 ✓ Verified
05-16 19:29 20m -7 / - TT1GD - / -13 2 ✓ Confirmed
05-15 18:31 20m -5 / - R6ABC - / -13 7 Partial
05-12 20:01 20m +10 / - RN1NEB - / -14 6 ✓ Confirmed
05-12 19:01 20m -16 / - DL2FCK - / -24 2 Partial
05-10 17:43 20m +3 / - RC6OU - / -12 2 ✓ Confirmed
05-09 20:09 20m -12 / - RW4HBD - / -14 4 ✓ Confirmed
05-01 20:46 20m -3 / - IK0SME - / - 3 Partial
04-27 17:56 20m +8 / - R6DJR - / -14 2 Partial
04-26 19:03 20m -13 / - ON7AC - / -18 3 ✓ Confirmed

Station Log

20m 
UTC    dB  Freq  Message
181815 -11 2618  CQ JK1KDD PM95
182115 -11 2618  E77TH JK1KDD -09
182415 -14 2618  Z34CMF JK1KDD PM95 (x2)
183845 -11 2580  TF4CU JK1KDD PM95
184145 -11 2579  CQ JK1KDD PM95 (x2)
183900  +4 2738  JK1KDD YO9DEH KN35
183900  +6 1787  JK1KDD UD3T -06 (x2)
183930  +8 2738  JK1KDD YO9DEH KN35
193830 -11 1833  JK1KDD TJ1GD/P -12 (x2)
182545  -3  483  JK1KDD <...> -14
184100  -7 2758  JK1KDD II2MPP JN45
10m 
UTC    dB  Freq  Message
102400 -21 1767  JK1KDD BI8SSW OL15 (x2)

SNR History by Band