JR8SUM — FT8 station from Japan

Japan Grid: ?

Amateur radio station JR8SUM operating from Japan. 5 FT8 spots received at SO8OO WebSDR, active on 20m, over 2 days, best SNR -6 dB. Heard between 2026-04-29 and 2026-05-12.

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

20m

First seen: 2026-04-29
Last seen: 2026-05-12 16:09 UTC

Frequent QSO partners observed at SO8OO

Stations JR8SUM worked most often, as logged from our receiver:

YL3CU · Latvia RD3FY · European Russia

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

Time	Band	JR8SUM	Partner	Partner SNR	Msgs
05-12 18:08	20m	-13 / -	YL3CU	- / -	2	✓ Confirmed
04-29 17:28	20m	-9 / -	RD3FY	- / -11	3	✓ Confirmed

Station Log

20m

UTC    dB  Freq  Message
172830  -6 2944  JR8SUM RD3FY KO85 (x3)
180800 -14 2777  JR8SUM YL3CU KO06 (x2)