JM3UGA — FT8 station from Japan

Japan Grid: PM74

Amateur radio station JM3UGA operating from Japan (grid square PM74). 31 FT8 spots received at SO8OO WebSDR, 6 CQ calls, active on 40m, 20m, over 3 days, best SNR +10 dB. Heard between 2026-05-09 and 2026-05-23.

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

Overview

Total spots

CQ calls

Days active

+0 dB

Avg SNR

Bands

20m 40m

First seen: 2026-05-09
Last seen: 2026-05-23 19:36 UTC

Frequent QSO partners observed at SO8OO

Stations JM3UGA worked most often, as logged from our receiver:

EA1IOK · Spain N3FCP · United States EU6AV · Belarus UW8SM · Ukraine UA1ANR · European Russia VR2VAZ · Hong Kong AK8A · United States EA1AJT · Spain

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

Time	Band	JM3UGA	Partner	Partner SNR	Msgs
05-23 21:36	20m	- / -4	UW8SM	-4 / -	2	✓ Confirmed
05-23 21:08	40m	+7 / -	EA8UP	- / -23	7	Partial
05-16 21:41	20m	+6 / -	EA1AJT	- / -16	6	✓ Confirmed
05-09 21:44	20m	+2 / -13	DL1BBO	-13 / -	2	Partial
05-09 21:44	20m	+3 / -	EA1IOK	-13 / -9	4	✓ Verified
05-09 11:56	20m	-4 / -	DK3JW	- / -	2	Partial
05-09 11:53	20m	- / -4	AK8A	-13 / -	2	✓ Confirmed
05-09 11:52	20m	-4 / -18	UA1ANR	-12 / -3	4	✓ Complete

Station Log

20m

UTC    dB  Freq  Message
214745 -13 2337  VR2VAZ JM3UGA RR73
214130  -1 2256  JM3UGA EA1AJT IN72 (x6)
214730 -16 1186  JM3UGA LU8VLE R-13
213315  -2 2125  CQ DX JM3UGA PM74 (x2)
213445  -1 2125  EU6AV JM3UGA RR73
213515  +1 2125  CQ DX JM3UGA PM74 (x2)
213645  -4 2126  UW8SM JM3UGA -04 (x2)

40m

UTC    dB  Freq  Message
210845  +7  767  JM3UGA EA8UP -23 (x7)