JH1UBK — FT8 station from Japan

Japan Grid: ?

Amateur radio station JH1UBK operating from Japan. 58 FT8 spots received at SO8OO WebSDR, active on 20m, 10m, over 13 days, best SNR +14 dB. Heard between 2026-04-22 and 2026-06-21.

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

Overview

58
Total spots
0
CQ calls
13
Days active
-7 dB
Avg SNR

Bands

20m 10m
First seen: 2026-04-22
Last seen: 2026-06-21 09:49 UTC

Frequent QSO partners observed at SO8OO

Stations JH1UBK worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJH1UBKPartnerPartner SNRMsgs
06-21 11:47 20m -15 / - UT4LU - / -18 4 ✓ Confirmed
06-13 00:50 20m -8 / - EX2K - / -12 2 ✓ Confirmed
06-12 07:24 10m +4 / - SV7CFP - / -6 3 Partial
06-11 09:29 10m -10 / - 5H1KB - / -10 2 ✓ Confirmed
06-09 08:13 10m -11 / - R6AR - / -9 2 ✓ Confirmed
05-09 03:08 20m -20 / - OM5CM - / -13 3 Partial
05-08 08:49 20m +4 / - HB9TIH - / - 4 Partial
05-04 11:23 20m +5 / - ON6AA - / - 5 ✓ Confirmed
05-01 21:43 20m +12 / - EA5BYS - / - 3 Partial
05-01 21:43 20m -10 / - EA2EWL - / -18 8 Partial
05-01 21:42 20m -10 / - S57ESG - / -11 4 ✓ Confirmed
05-01 21:01 20m -3 / - DF7EF - / - 2 Partial
05-01 10:56 20m -8 / - PD1ADA - / -23 2 Partial

Station Log

20m 
UTC    dB  Freq  Message
085115  +3 1279  JH1UBK HB9TIH JN36 (x2)
030800 -20 1875  JH1UBK OM5CM R-13 (x3)
121330 -22 1819  JH1UBK EX8ABR/P R-14
121400 -21 1819  JH1UBK RR73; JH6RKI <...> +08
222630  -2  723  JH1UBK 7Z1DS 73
005045  -7  383  JH1UBK EX2K R-12 (x2)
114430 -15 2279  JH1UBK UT4LU KN88 (x5)
10m 
UTC    dB  Freq  Message
081300 -13 1628  JH1UBK R6AR R-09 (x2)
092900  -9  477  JH1UBK 5H1KB R-10 (x2)
113430 -17  819  JH1UBK 9X5KM RR73
072415  +5 2329  JH1UBK SV7CFP R-06 (x3)

SNR History by Band