JA4DNC — FT8 station from Japan

Japan Grid: ?

Amateur radio station JA4DNC operating from Japan. 16 FT8 spots received at SO8OO WebSDR, active on 40m, 20m, over 7 days, best SNR +10 dB. Heard between 2026-04-23 and 2026-07-11.

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

Overview

16
Total spots
0
CQ calls
7
Days active
-6 dB
Avg SNR

Bands

20m 40m
First seen: 2026-04-23
Last seen: 2026-07-11 16:49 UTC

Frequent QSO partners observed at SO8OO

Stations JA4DNC worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJA4DNCPartnerPartner SNRMsgs
07-11 18:49 20m +9 / - HA3LI - / -19 2 ✓ Confirmed
07-04 19:40 20m -12 / - 4X1UF - / -12 2 ✓ Confirmed
06-13 20:50 20m - / - T88RR -12 / - 2 Partial
06-06 20:50 20m -4 / - YO3EGE - / -14 2 ✓ Confirmed
06-06 20:47 20m +7 / - F4JRC - / -13 2 ✓ Confirmed
06-05 20:23 20m -14 / - TJ1GD - / -12 2 ✓ Confirmed
06-01 16:47 20m -14 / - A61FJ - / -19 2 ✓ Confirmed

Station Log

20m 
UTC    dB  Freq  Message
164745 -20 1426  JA4DNC A61FJ RR73
202300 -15 1251  JA4DNC TJ1GD -12 (x2)
204715  +9 2537  JA4DNC F4JRC -13 (x2)
205015  -5 2435  JA4DNC YO3EGE R-14 (x2)
210200 -17 2413  7Z1IS JA4DNC 73
212215 -11  553  9X5KM JA4DNC PM64
205030 -11  413  T88RR JA4DNC PM64 (x2)
194045 -10  256  JA4DNC 4X1UF -12 (x2)
184915 +10  275  JA4DNC HA3LI -19 (x2)

SNR History by Band