SP9MZU — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KN09

Receiver-side FT8 activity involving SP9MZU, decoded by SO8OO in southeastern Poland. 617 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 16 UTC dates in the available aggregate history. Observed between 2026-07-05 and 2026-11-05.

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 617 FT8 messages attributed to SP9MZU as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (60%), followed by 80 m (32%) and 60 m (6%). Most decodes (99%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was 0 dB.

Overview

617

Messages attributed

UTC dates decoded

Active 15-min windows

0 dB

Estimated median S/N

Bands

80m · 196 60m · 38 40m · 372 20m · 11

First attributed message: 2026-07-05
Last attributed message: 2026-11-05 20:20 UTC

Observed FT8 message patterns

Attributed sample: 617 messages
Active dates: 16 UTC dates
Estimated median S/N: 0 dB
Estimated 10th-90th percentile: -15 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 58, moderate (-15 to -9 dB) 83, strong (≥ -8 dB) 476.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP9MZU in decoded directed-looking exchanges:

F1PBZ · France ×3 R4HLO · European Russia ×2 RX9WM · Asiatic Russia ×2 UR4LG · Ukraine ×2 DL4MBY · Fed. Rep. of Germany EA7Y · Spain F5CUN · France BG8NQ · China F4EEL · France G0JDK · England G8ANJ · England GI6KDN · Northern Ireland

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to SP9MZU

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: KN09 · 398 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 75 km (approx.)
Last such locator decoded: 2026-11-05 20:16 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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	SP9MZU S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 20:20	80m	+9 / -2	SP5JMA	+8 / -	3	✓ Closing observed
11-05 20:04	80m	-1 / -8	YO2CR	+3 / -	3	✓ Closing observed
11-05 20:00	40m	- / -13	ON3MOH	-19 / -	3	Partial capture
11-05 19:43	40m	- / -16	EA3CXN	-12 / -	2	✓ Closing fragment
11-05 19:40	40m	- / -4	RJ3DC	-11 / -	3	✓ Closing fragment
11-05 19:05	40m	- / +1	F4FSY	-10 / -	3	Partial capture
11-05 19:05	40m	- / -	SV1DKR	-6 / -	2	Partial capture
11-05 18:58	40m	- / -6	F4FSY	-9 / -	2	Partial capture
11-05 18:56	40m	- / -11	SP6DXH	-9 / -	2	✓ Closing fragment
11-05 18:37	40m	- / -6	DL6DK	-7 / -	2	Partial capture
11-05 17:55	40m	- / -	OZ1LDO	-10 / -	2	✓ Closing fragment
11-05 17:55	40m	- / 0	R7MP	-16 / -	2	✓ Closing fragment
11-05 17:53	40m	- / -1	SP4VIT	-8 / -	2	✓ Closing fragment
11-05 17:48	40m	- / +6	DJ2MS	-9 / -	3	✓ Closing fragment
11-05 17:41	40m	- / -8	SP1PMS	-10 / -	4	✓ Closing fragment
11-05 17:24	40m	- / -3	OH3DJP	-7 / -	2	✓ Closing fragment
11-04 19:46	40m	- / -9	DL2MED	-12 / -	2	Partial capture
11-03 15:11	10m	- / -	DL1TS	-4 / -	6	Partial capture
11-03 15:04	10m	- / -19	DL4MBY	-2 / -	3	✓ Closing fragment
11-03 15:02	10m	- / +9	F5CUN	-1 / -	3	✓ Closing fragment
11-03 14:57	10m	- / -	DO5ALO	-12 / -	2	Partial capture
11-03 14:51	10m	- / -	DL1TS	-13 / -	2	Partial capture
11-03 14:48	10m	- / -6	F1PBZ	+12 / -	2	✓ Closing fragment
11-02 19:41	80m	- / -	DO5PY	-4 / -	3	Partial capture
11-02 19:06	80m	- / -	US7UK	+8 / -	2	Partial capture
11-02 19:02	80m	- / -	DO1WOA	-1 / -	2	Partial capture
11-02 18:50	80m	0 / -	IU1DXU	- / -18	3	Partial capture
11-02 18:41	80m	-2 / -14	UR5DU	-6 / +2	4	✓ Full exchange observed
11-02 16:46	80m	-1 / -	LZ911TD	- / -	2	Partial capture
11-02 16:46	80m	- / -	HF40BLP	+11 / -	2	Partial capture
11-02 16:43	80m	- / +6	ES2AJ	+7 / -	7	Partial capture
10-17 19:01	40m	- / -	PC4P	-8 / -	2	✓ Closing fragment
10-17 18:09	40m	- / -	PA0MUS	-6 / -	6	Partial capture
10-14 18:55	80m	+7 / -	R4HLO	- / -7	9	✓ Closing fragment
10-14 18:53	80m	-3 / -	HB9AKP	- / -9	2	✓ Closing fragment
10-14 18:50	80m	-6 / -	UX0CZ	- / +1	3	✓ Closing fragment
10-14 18:47	80m	-2 / -1	DL9KM	-5 / +7	5	✓ Full exchange observed
10-14 18:43	80m	0 / -	DA6YY	-4 / -1	3	✓ Closing observed
10-14 18:41	80m	+2 / -2	UR4LG	-8 / +7	4	✓ Full exchange observed
10-14 18:36	80m	+2 / -1	DL9PN	-9 / -6	5	✓ Full exchange observed
10-14 18:34	80m	+6 / -	R9FAI	- / -6	3	✓ Closing fragment
10-14 18:33	80m	- / -	DO5PY	-12 / -	4	Partial capture
10-14 18:31	80m	- / -15	YO8ROM	-8 / -	2	✓ Closing fragment
10-14 18:28	80m	+8 / +3	UR5RBP	-15 / +9	5	✓ Full exchange observed
10-14 18:23	80m	+1 / -4	UR4LG	-4 / +6	9	✓ Full exchange observed
10-14 18:17	80m	+4 / -	IU1WMA	-17 / -9	6	Partial capture
10-14 18:17	80m	+5 / +1	SQ2NIG	0 / -	11	✓ Full exchange observed
10-14 18:11	80m	+5 / -	OD5ZF	- / -15	10	Partial capture
10-14 18:09	80m	- / -	SQ2NIG	-1 / -	9	Partial capture
10-14 18:05	80m	+8 / -	DK7UY	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
194415  +0 1504  CQ SP9MZU KN09 (x2)
194530  -1 1226  SP9MZU YO4GIY KN43
200315  +2  882  CQ SP9MZU KN09 (x2)
200400  -1  883  SP9MZU YO2CR -08 (x2)
200445  -1  883  YO2CR SP9MZU 73
200545  +7  883  CQ SP9MZU KN09 (x2)
201200 -12 1533  SP9MZU IS0LAY JM49
201645  -6  882  CQ SP9MZU KN09                        a1
202030  +8  353  SP9MZU SP5JMA R-02
202045  +9  883  SP5JMA SP9MZU RR73
202100  +7  353  SP9MZU SP5JMA 73

40m

UTC    dB Audio  Message
190530  -4 1941  SP9MZU SV1DKR KM18
190530  -8 1877  SP9MZU F4FSY +01
190600  -7 1941  SP9MZU SV1DKR KM18
190600 -13 1877  SP9MZU F4FSY +01 (x2)
194000 -12 1771  SP9MZU RJ3DC KO95 (x3)
194330 -11  919  SP9MZU EA3CXN R-16 (x2)
195130 -21 2064  SP9MZU YL3ASK R-07
195500 -14  920  SP9MZU SP4WJ 73
200030 -19  920  SP9MZU ON3MOH JO10 (x3)

10m

UTC    dB Audio  Message
145600 -22 1601  SP9MZU EA7Y 73
145700  -5 1601  SP9MZU DO5ALO JN68 (x2)
150230  -5  519  SP9MZU F5CUN JN26 (x3)
150430  -3  668  SP9MZU DL4MBY JN57 (x3)
151130  -7 2547  SP9MZU DL1TS JN58 (x6)

20m

UTC    dB Audio  Message
160245  -4 2261  SP9MZU G8ANJ 73
192815 -14 2916  CQ SP9MZU KN09
192845  -9 2918  RU6UR SP9MZU R+10 (x2)
192945 -12 2917  CQ SP9MZU KN09
193045 -10 2917  R6ADH SP9MZU -04 (x2)
193415 -13 2918  CQ SP9MZU KN09 (x4)
164815 -12 3102  SP9MZU VU2FR ML88 (x4)

60m

UTC    dB Audio  Message
192530 -11 2533  LY3W SP9MZU RR73
192545  +4 1723  SP9MZU LY3W 73
192630  -8 2533  CQ SP9MZU KN09 (x4)
192815 -12 1382  SP9MZU OZ7QC -19
192830  -9 2533  OZ7QC SP9MZU R-03
192845  -6 1383  SP9MZU OZ7QC -19
192900  -5 2533  OZ7QC SP9MZU R-03 (x4)
193130  -7 2533  S58X SP9MZU KN09 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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