JA1DDD — FT8 station from Japan

Japan Grid: KN98

Amateur radio station JA1DDD operating from Japan (grid square KN98). 121 FT8 spots received at SO8OO WebSDR, active on 160m, 20m, over 26 days, best SNR +22 dB. Heard between 2026-04-25 and 2026-07-24.

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

Overview

121
Total spots
0
CQ calls
26
Days active
+1 dB
Avg SNR

Bands

20m 160m
First seen: 2026-04-25
Last seen: 2026-07-24 13:29 UTC

Frequent QSO partners observed at SO8OO

Stations JA1DDD worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJA1DDDPartnerPartner SNRMsgs
07-17 17:35 20m +4 / - HB9COF - / -17 3 ✓ Confirmed
06-18 16:37 20m +8 / - 7Q5MLV - / -12 2 ✓ Confirmed
06-17 17:32 20m +3 / - RZ4FWA - / -18 5 ✓ Confirmed
06-16 18:38 20m -17 / - IN3KXV - / -22 2 Partial
06-16 17:04 20m +3 / - EA4HW - / - 3 Partial
06-16 16:38 20m -11 / - YO7CFD - / -18 2 ✓ Confirmed
06-16 13:05 20m 0 / - RA9YJU - / -9 2 ✓ Confirmed
06-12 16:39 20m -12 / - YO6LM - / - 2 Partial
06-11 18:18 20m 0 / - EA1B - / - 2 Partial
06-09 17:03 20m -4 / - F4BYA - / - 3 Partial
06-08 17:39 20m +1 / - RV6AVU - / -16 2 Partial
06-08 16:48 20m +20 / - IZ2CPP - / -22 4 Partial
06-08 16:42 20m -4 / - F4FLF - / -24 6 ✓ Confirmed
06-07 17:59 20m +3 / - RA3FH - / -9 2 ✓ Confirmed
06-07 17:39 20m +8 / - DK1MCS - / -21 4 ✓ Confirmed
06-07 16:56 20m +11 / - SV2AJX - / -19 4 ✓ Confirmed
05-23 19:51 160m 0 / - SP7NC - / - 3 Partial
05-07 20:08 20m +6 / - F5HNQ - / -15 2 Partial
05-06 17:32 20m +4 / - EA1CQ - / - 2 Partial
05-06 17:10 20m +2 / - R6DJR - / -19 3 Partial
05-04 16:27 20m +4 / - B3CRA - / - 2 Partial
05-03 22:19 20m -16 / - DL3MIB - / -16 4 ✓ Confirmed
05-02 15:57 20m +12 / - UF4S - / -14 2 ✓ Confirmed
05-02 15:42 20m -15 / - R0SDM - / - 2 Partial
05-02 15:06 20m +11 / - UA4CCH - / -17 4 ✓ Confirmed
04-29 20:19 20m +6 / - IT9MRM - / -21 4 ✓ Confirmed
04-27 17:38 20m -12 / - IZ4OUL - / - 2 Partial
04-27 16:51 20m +6 / - E75AA - / -12 2 ✓ Confirmed
04-27 16:17 20m +2 / - R3RAF - / - 2 ✓ Confirmed
04-27 15:19 20m -6 / - F4BYA - / - 2 Partial
04-27 15:15 20m -8 / - F4BYA - / - 2 Partial
04-27 15:06 20m +5 / - F4BYA - / - 5 Partial

Station Log

20m 
UTC    dB  Freq  Message
192245  -8 2979  JA1DDD UA6LCF 73
172345  +9 2764  JA1DDD Z34K KN01
173215  +8 2055  JA1DDD RZ4FWA LO23 (x5)
163715 +10 2926  JA1DDD 7Q5MLV -12 (x2)
142300  -5 2908  JA1DDD 4X5MZ KM71
172115  -3 2603  JA1DDD US5HL RR73
173545 +11  548  JA1DDD HB9COF JN47 (x3)
152915  +8 2928  JA1DDD RC6OU KN98
160m 
UTC    dB  Freq  Message
195145  +0  635  JA1DDD SP7NC JO91 (x3)

SNR History by Band