JH4RBA — FT8 station from Japan

Japan Grid: ?

Amateur radio station JH4RBA operating from Japan. 11 FT8 spots received at SO8OO WebSDR, active on 40m, 20m, 10m, over 2 days, best SNR +18 dB. Heard between 2026-04-25 and 2026-05-06.

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

Overview

Total spots

CQ calls

Days active

-4 dB

Avg SNR

Bands

20m 40m 10m

First seen: 2026-04-25
Last seen: 2026-05-06 13:39 UTC

Frequent QSO partners observed at SO8OO

Stations JH4RBA worked most often, as logged from our receiver:

RP81GT · European Russia EX7CQ · Kyrgyzstan

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

Time	Band	JH4RBA	Partner	Partner SNR	Msgs
05-06 15:38	40m	-12 / -	RP81GT	-12 / -	3	✓ Verified
05-06 15:38	40m	+16 / -	US2YW	- / -	2	Partial
05-06 06:27	20m	-10 / -	G0JHC	- / -14	2	Partial
04-25 07:13	10m	-8 / -	EX7CQ	- / -18	3	✓ Confirmed

Station Log

40m

UTC    dB  Freq  Message
153830 -14 1191  <JH4RBA> RP81GT 73
153830 +13  689  JH4RBA US2YW KN28 (x2)
153930 -11 1191  JH4RBA RP81GT RR73
153945 -12 1191  RP81GT JH4RBA 73

20m

UTC    dB  Freq  Message
062715 -14 2142  JH4RBA G0JHC -14 (x2)
063645  -6 1995  JH4RBA TK5AE JN41
132730  -2  996  JH4RBA RW4F LO23

10m

UTC    dB  Freq  Message
071300  -6 1337  JH4RBA EX7CQ -18 (x3)