S57MPU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovenia Locator transmitted in a decoded message: JN76

Receiver-side FT8 activity involving S57MPU, decoded by SO8OO in southeastern Poland. 1,025 related FT8 messages, 288 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 7 UTC dates. Heard between 2026-08-13 and 2026-08-21.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

1,025

Related messages

288

CQ messages

UTC dates heard

-4 dB

Mean decoder S/N

Bands

80m 20m 40m 60m 10m

First seen: 2026-08-13
Last seen: 2026-08-21 09:39 UTC

Frequent QSO partners observed at SO8OO

Stations S57MPU worked most often, as logged from our receiver:

9A4ZM · Croatia ×3 OM5JG · Slovak Republic ×3 2E0ROJ · England ×3 HA7TM · Hungary ×2 RN6MA · European Russia ×2 DL1UDO · Fed. Rep. of Germany ×2 PC2J · Netherlands ×2 SV8GXC · Greece ×2 K2JRT · United States ×2 DL3MIB · Fed. Rep. of Germany ×2 ON6ZK · Belgium ×2 EW8AAC · Belarus ×2

Activity Heatmap

Locator transmitted by S57MPU

Approximate centre of JN76, decoded 2026-08-21 11:39 UTC. A transmitted locator is not proof of the operator's permanent location.

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	S57MPU S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-21 11:36	10m	-5 / -	3A2MW	- / -	2	Partial capture
08-21 10:49	20m	- / -	DK4BP	-16 / -	3	Partial capture
08-21 10:45	20m	+11 / -19	PC2J	-5 / -4	22	✓ Full exchange observed
08-21 10:40	20m	+8 / -	SP0LPR	- / -25	2	✓ Closing fragment
08-21 10:40	20m	+12 / -	DL1UDO	-15 / -8	6	Partial capture
08-21 10:39	20m	- / -12	OE7MAH	-20 / -	3	Partial capture
08-21 10:38	20m	+12 / -14	E70SZ	+2 / -4	5	✓ Full exchange observed
08-21 10:35	20m	+9 / -	TA3KJ	- / -	3	Partial capture
08-21 10:27	10m	-14 / -	A71UN	- / -21	4	Partial capture
08-21 10:26	10m	- / -23	DN9JGL	-12 / -	4	Partial capture
08-21 10:22	10m	-15 / -	RN3DKE	- / +7	3	✓ Closing fragment
08-21 10:16	10m	+1 / -24	DN9SHA	-13 / -22	18	Partial capture
08-21 07:46	20m	+13 / -15	TK4VXL	-20 / -	12	Partial capture
08-21 07:43	20m	+7 / -	SP2LKP	- / -17	5	Partial capture
08-21 07:40	20m	+2 / -	A93MO	- / -	2	Partial capture
08-21 07:39	20m	+8 / -	R9CA	- / -	3	Partial capture
08-21 07:36	20m	+4 / -	EK1KE	- / 0	2	✓ Closing fragment
08-21 07:35	20m	+7 / -	EA5DQW	- / -6	2	✓ Closing fragment
08-21 07:34	20m	+14 / -	SP8ADU	- / -	2	✓ Closing fragment
08-21 07:28	20m	+9 / -	EK1KE	- / -	5	Partial capture
08-21 07:25	20m	+12 / -	TA4INO	-16 / -1	6	✓ Closing observed
08-21 07:23	20m	+12 / -	A93MO	- / +1	2	✓ Closing fragment
08-20 21:46	60m	+11 / +3	PC2J	+8 / -9	5	✓ Full exchange observed
08-20 19:16	80m	- / -	DF2JK	-24 / -	2	Partial capture
08-20 19:16	80m	- / 0	DO1ID	0 / -	7	Partial capture
08-20 19:16	80m	- / -	DO9BAU	-4 / -	13	Partial capture
08-20 19:11	80m	- / -1	LY8O	+5 / -	4	✓ Closing fragment
08-20 19:11	80m	- / -9	UA4FKT	0 / -	4	✓ Closing fragment
08-20 19:07	40m	- / -12	F5MJN	-3 / -	2	Partial capture
08-20 19:07	40m	- / -	F5RRS	-3 / -	4	Partial capture
08-20 19:01	20m	- / -3	2E0ROJ	-3 / -	3	✓ Closing fragment
08-20 18:59	20m	- / -6	CT1BFP	-11 / -	3	✓ Closing fragment
08-20 18:57	20m	- / -12	PA1PXL	-9 / -	3	✓ Closing fragment
08-20 18:55	20m	- / -	PI4TX	-17 / -	3	Partial capture
08-20 18:48	40m	- / -	UX7QV	+9 / -	6	Partial capture
08-20 18:46	40m	- / +7	DK7ZT	-1 / -	3	Partial capture
08-20 18:46	40m	+10 / -5	F5PBG	-2 / -6	5	✓ Full exchange observed
08-20 18:42	60m	+6 / +5	DL8UD	-2 / -5	7	Partial capture
08-20 18:41	60m	+5 / -	OM5JG	0 / -	5	✓ Full exchange observed
08-20 18:40	60m	- / +8	DK7ZT	-14 / -	2	Partial capture
08-20 18:40	60m	+7 / +4	DL6EL	+4 / +10	5	✓ Full exchange observed
08-20 18:09	20m	-6 / +4	EA5JXP	-14 / -	3	✓ Full exchange observed
08-20 18:07	20m	- / -19	IS0KNG	-1 / -	2	✓ Closing fragment
08-20 17:56	20m	- / -	CT1BFP	-8 / -	3	Partial capture
08-20 17:51	20m	-7 / -20	IU5HIU	-8 / -14	5	✓ Full exchange observed
08-20 17:47	20m	- / -	DL1UDO	-7 / -	2	Partial capture
08-20 13:27	20m	-14 / -	JA1XIA	- / -	2	Partial capture
08-20 06:29	20m	- / -	DL6UM	-6 / -	4	Partial capture
08-20 06:22	20m	- / -12	YO4NT	+11 / -	3	✓ Closing fragment
08-20 06:18	20m	-9 / -	TA2ZLM	- / -22	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
102630 -10  944  S57MPU DN9JGL -23 (x2)
102715 -18  943  A71UN S57MPU R-21
102730 -15  944  S57MPU DN9JGL JO41
102745 -16  943  A71UN S57MPU R-21
102800  -9  944  S57MPU DN9JGL JO41
102815  -9  943  A71UN S57MPU R-21 (x2)
103015  -8  943  CQ S57MPU JN76 (x2)
112730  -5  481  S57MPU F4VTR JN25
113030  -4  481  S57MPU RN6MA RR73
113600  -3  481  3A2MW S57MPU JN76 (x2)
113900 -10  482  CQ S57MPU JN76

20m

UTC    dB Audio  Message
104830  +0  930  S57MPU PC2J R-19 (x2)
104900 -16 1792  S57MPU DK4BP JN58
104915  +6  930  PC2J S57MPU RR73
104930  +0  930  S57MPU PC2J R-19
104930 -17 1792  S57MPU DK4BP JN58
104945 +13  930  PC2J S57MPU RR73
105015 +14  930  CQ S57MPU JN76
105030  -8  930  S57MPU PC2J JO22
105030 -15 1292  S57MPU DK4BP JN58
105045 +11  930  PC2J S57MPU -14
105130  -4  930  S57MPU PC2J R-20 (x3)
105230 -13 1492  S57MPU DL6UM JO60

60m

UTC    dB Audio  Message
214600  -2 2049  S57MPU F5HNQ IN98
214615  +8  664  CQ S57MPU JN76
214630  +9  665  S57MPU PC2J JO22
214645 +10  664  PC2J S57MPU -09
214700  +6  664  S57MPU PC2J R+03
214715 +12  664  PC2J S57MPU RR73
214730 +10  664  S57MPU PC2J 73
214745  +7  664  CQ S57MPU JN76 (x4)
055430 -21 1901  S57MPU DK7ZT -02
055445  -1  735  CQ S57MPU JN76 (x3)

80m

UTC    dB Audio  Message
191730  -3 2202  S57MPU DO9BAU JO62
191730  -1  381  S57MPU DO1ID R+00
191800  -9 2202  S57MPU DO9BAU JO62
191800  -2  381  S57MPU DO1ID R+00
191830  -3 2202  S57MPU DO9BAU JO62
191830  +1  381  S57MPU DO1ID R+00
191900  -5 2202  S57MPU DO9BAU JO62
191900  -1  381  S57MPU DO1ID R+00
191930  -4 2202  S57MPU DO9BAU JO62
191930  +1  382  S57MPU DO1ID R+00
192000  -3 2202  S57MPU DO9BAU JO62 (x5)

40m

UTC    dB Audio  Message
184745  -1 1905  S57MPU DK7ZT +07
184800 +14  616  CQ S57MPU JN76
184815 +12  617  S57MPU UX7QV KN29
184915  +2 1523  S57MPU UB3LBU KO63
184915  +9  617  S57MPU UX7QV KN29 (x5)
190700  -1 1943  S57MPU F5RRS JN36
190730  -1  625  S57MPU F5MJN JN09
190730  -6 1943  S57MPU F5RRS JN36
190800  -5  625  S57MPU F5MJN R-12
190800  -3 1943  S57MPU F5RRS JN36 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.