JI1UMC — FT8 station from Japan

Japan Grid: LO23

Amateur radio station JI1UMC operating from Japan (grid square LO23). 61 FT8 spots received at SO8OO WebSDR, active on 20m, over 8 days, best SNR +30 dB. Heard between 2026-04-23 and 2026-05-13.

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

Overview

Total spots

CQ calls

Days active

-2 dB

Avg SNR

Bands

20m

First seen: 2026-04-23
Last seen: 2026-05-13 09:44 UTC

Frequent QSO partners observed at SO8OO

Stations JI1UMC worked most often, as logged from our receiver:

OR7K · Belgium W3YNI · United States F4IBJ · France F6EYB · France ON6AA · Belgium W3FOX · United States HC2GRC · Ecuador F5URG · France G7IJI · England G0BNR · England

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

Time	Band	JI1UMC	Partner	Partner SNR	Msgs
05-13 11:43	20m	-10 / -	R4FDW	- / -	4	Partial
05-13 11:42	20m	+6 / -	OR7K	- / -	2	✓ Confirmed
05-12 14:52	20m	-14 / -	PA1LCS	- / -20	2	Partial
05-12 14:27	20m	-10 / -	F4IBJ	- / -16	3	✓ Confirmed
05-12 09:41	20m	+24 / -	ON6AA	- / -19	3	✓ Confirmed
05-07 12:28	20m	+12 / -	ON6AA	- / -	2	Partial
05-07 12:19	20m	+20 / -	ON6AA	- / -	2	Partial
05-07 03:15	20m	-5 / -	W3YNI	- / -18	3	✓ Confirmed
05-05 16:36	20m	-16 / -	R7SF	- / -	7	Partial
05-05 16:27	20m	-16 / -	EA3CSK	- / -17	3	Partial
05-05 16:26	20m	-12 / -	F6EYB	- / -14	2	✓ Confirmed
05-05 15:56	20m	0 / -	F5URG	- / -17	2	✓ Confirmed
05-05 05:28	20m	-18 / -	HC2GRC	- / -1	2	✓ Confirmed
05-04 12:08	20m	0 / -	IK2ZJR	- / -	4	Partial
05-04 12:07	20m	+8 / -	ON6AA	- / -	2	Partial
05-03 14:17	20m	+7 / -	R4FDW	- / -	8	Partial
05-03 14:03	20m	- / -22	NW2M	-14 / -	2	Partial
04-23 12:42	20m	- / -	KK2I	-18 / -	3	Partial
04-23 12:01	20m	+13 / -	R7DX	- / -	2	Partial
04-23 11:52	20m	-14 / -	UN9PQ	- / -17	2	Partial

Station Log

20m

UTC    dB  Freq  Message
142730 -12 1608  JI1UMC F4IBJ -16 (x3)
145200 -15 1883  JI1UMC PA1LCS -20 (x2)
145645 -18 1235  JI1UMC G0BNR RR73
114230  +9 2071  JI1UMC OR7K +00
114300 -11 1611  JI1UMC R4FDW LO23
114300  +3 2071  JI1UMC OR7K RR73
114330 -10 1611  JI1UMC R4FDW LO23 (x3)
133400  -7  483  G8KVP JI1UMC PM95
133430 -11  482  TF8KW JI1UMC PM95
133900 -12  494  OZ0HC JI1UMC PM95