JH4JBJ — FT8 station from Japan

Japan Grid: ?

Amateur radio station JH4JBJ operating from Japan. 16 FT8 spots received at SO8OO WebSDR, active on 40m, 20m, 10m, over 9 days, best SNR +7 dB. Heard between 2026-05-05 and 2026-07-24.

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

Overview

Total spots

CQ calls

Days active

-11 dB

Avg SNR

Bands

40m 20m 10m

First seen: 2026-05-05
Last seen: 2026-07-24 17:36 UTC

Frequent QSO partners observed at SO8OO

Stations JH4JBJ worked most often, as logged from our receiver:

7Q7CT · Malawi LZ3HG · Bulgaria A61DD · United Arab Emirates UN8DSW · Kazakhstan RA3ZH · European Russia

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

Time	Band	JH4JBJ	Partner	Partner SNR	Msgs
07-24 19:35	40m	-8 / -	OE3PBS	- / -14	2	Partial
07-17 19:18	40m	-14 / -	LZ3HG	- / -16	2	✓ Confirmed
06-09 17:23	40m	+1 / -	RA3ZH	- / -16	2	✓ Confirmed

Station Log

40m

UTC    dB  Freq  Message
172300  +1  373  JH4JBJ RA3ZH R-16 (x2)
191600 -22 1353  JH4JBJ UN8DSW RR73
191830 -13 1989  JH4JBJ LZ3HG -16 (x2)
193545  -8 1947  JH4JBJ OE3PBS -14 (x2)

10m

UTC    dB  Freq  Message
112330 -12 1340  JH4JBJ 7Q7CT RR73
124045  +7 1039  JH4JBJ A61DD RR73
093300 -18 1727  JH4JBJ A60PC/14 -14

20m

UTC    dB  Freq  Message
083715 -16 1911  JH4JBJ ON6AA JO11 (x2)
162600 -19 1185  JH4JBJ JY5IB -17
163400 -21 2230  JH4JBJ R7SF KN86
200300  -6  631  JH4JBJ TN8GD -13
200545  -4  920  JH4JBJ A61CK -13
175115 -14 2719  SV9KNA JH4JBJ PM74
175430 -13 2699  LZ1BT JH4JBJ PM74