JA0MVW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan

Receiver-side FT8 activity involving JA0MVW, decoded by SO8OO in southeastern Poland. 1 FT8 messages attributed to this token as transmitter, on 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-11.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 1 FT8 messages attributed to JA0MVW as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 80 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

S/N pattern not inferred

Bands

80m · 1

First attributed message: 2026-09-11
Last attributed message: 2026-09-11 20:10 UTC

Observed FT8 message patterns

Attributed sample: 1 messages
Active dates: 1 UTC dates
S/N summary: Too few decodes
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JA0MVW in decoded directed-looking exchanges:

LY7M · Lithuania ×2 DL1RWN · Fed. Rep. of Germany ES2AJ · Estonia EX7CQ · Kyrgyzstan IZ7NLJ · Italy OH3NXW · Finland R3GO · European Russia R3KGN · European Russia RK4FH · European Russia RY3K · European Russia SQ3M · Poland SV8JE · Greece

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	JA0MVW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 18:58	160m	- / +5	DL8MKG	+11 / -	4	Partial capture
09-19 18:54	160m	- / -25	IZ7NLJ	-4 / -	3	✓ Closing fragment
09-19 18:31	160m	- / -19	EX7CQ	-20 / -	3	✓ Closing fragment
09-18 20:09	160m	- / -24	SQ3M	0 / -	4	✓ Closing fragment
09-18 19:57	160m	- / -	OZ2LIN	-12 / -	2	Partial capture
09-18 19:44	160m	- / -16	DL1RWN	+6 / -	2	✓ Closing fragment
09-18 19:38	160m	- / -	YO2MTG	+2 / -	2	Partial capture
09-18 19:36	160m	- / -	RW0AR	-16 / -	7	Partial capture
09-18 19:36	160m	- / -21	SP3QDM	+11 / -	6	Partial capture
09-12 20:39	40m	- / +1	OZ1AXG	+20 / -	2	✓ Closing fragment
09-12 20:28	40m	- / -19	PA3EWP	+6 / -	2	✓ Closing fragment
09-11 20:37	40m	- / -20	IK1LZF	+9 / -	3	✓ Closing fragment
09-11 20:09	80m	-22 / -17	ON6AA	+7 / -9	4	✓ Full exchange observed
09-09 20:20	160m	- / -22	LY7M	+12 / -	2	✓ Closing fragment
09-08 19:57	80m	- / -	OH4BW	+11 / -	2	Partial capture
09-02 19:34	160m	- / -	UA3AKO	-2 / -	4	Partial capture
09-02 19:26	160m	- / -	SO1CJ	+2 / -	3	Partial capture
09-02 19:16	160m	- / -5	LY7M	+14 / -	3	✓ Closing fragment
09-02 19:16	160m	- / -12	OH3NXW	+6 / -	7	✓ Closing fragment
09-02 18:52	80m	- / -12	V51WH	-9 / -	3	✓ Closing fragment
08-31 19:17	160m	- / -	UA3AKO	+1 / -	3	Partial capture
08-31 19:16	160m	- / -25	ES2AJ	0 / -	3	✓ Closing fragment
08-31 18:47	160m	- / -12	R3GO	+5 / -	4	✓ Closing fragment
08-31 18:39	160m	- / -11	R3KGN	-7 / -	6	✓ Closing fragment
08-30 20:00	160m	- / -17	RK4FH	-4 / -	4	✓ Closing fragment
08-30 19:57	160m	- / -13	RY3K	+14 / -	4	✓ Closing fragment
08-30 19:56	160m	- / -13	SV8JE	+4 / -	3	✓ Closing fragment
08-27 19:56	80m	- / -4	IW0BYL	+16 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

160m

UTC    dB Audio  Message
195800 -10 2400  JA0MVW OZ2LIN JO46
200945  +0 2185  JA0MVW SQ3M -24 (x4)
183130 -24 1690  JA0MVW EX7CQ -19 (x3)
185400  -4  795  JA0MVW IZ7NLJ JN81 (x3)
185830  +6 2622  JA0MVW DL8MKG +05 (x4)

40m

UTC    dB Audio  Message
203700  +5  556  JA0MVW IK1LZF JN44 (x3)
202815  +8 2269  JA0MVW PA3EWP -19 (x2)
203930 +21 2789  JA0MVW OZ1AXG +01 (x2)

80m

UTC    dB Audio  Message
195630 +14 2528  JA0MVW IW0BYL -04 (x2)
185200  -8 2539  JA0MVW V51WH -12 (x3)
195715  -3 1247  JA0MVW R3DLK KO85
195745 +10 3019  JA0MVW OH4BW KP32 (x2)
200930 +12  677  JA0MVW ON6AA -17
201015 -22 1322  ON6AA JA0MVW R-09
201030  +3 2119  JA0MVW ON6AA RR73 (x2)
201100  -9 2417  JA0MVW IZ8KVW JN71
203000  -9 1102  JA0MVW RA1OD -16

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