SP4AU — 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: KO03

Receiver-side FT8 activity involving SP4AU, decoded by SO8OO in southeastern Poland. 116 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-11.

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 116 FT8 messages attributed to SP4AU as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (36%), followed by 40 m (34%) and 20 m (30%). Most decodes (72%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -2 dB.

Overview

116

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

80m · 42 40m · 39 20m · 35

First attributed message: 2026-06-08
Last attributed message: 2026-10-11 11:36 UTC

Observed FT8 message patterns

Attributed sample: 116 messages
Active dates: 11 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -14 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 81.

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 SP4AU in decoded directed-looking exchanges:

RI1FJL · Franz Josef Land TA2EE · Asiatic Turkey DA2DA · Fed. Rep. of Germany DD3ZZ · Fed. Rep. of Germany DD6UVO · Fed. Rep. of Germany DL4DBM · Fed. Rep. of Germany DN1DAS · Fed. Rep. of Germany VJ6X · Australia SP7VCL · Poland SP9EPW · Poland SQ8V · Poland Z62NS · Republic of Kosovo

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 SP4AU

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: KO03 · 78 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 400 km (approx.)
Last such locator decoded: 2026-10-11 11:31 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	SP4AU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-11 11:35	40m	-11 / -	DA125RH	+10 / +6	2	Partial capture
10-11 11:32	40m	-14 / -11	DL4DBM	-12 / -4	4	✓ Full exchange observed
10-11 11:23	40m	-13 / -9	DD6UVO	-14 / -7	5	✓ Full exchange observed
10-11 11:12	40m	-4 / -	DD3ZZ	- / -15	5	✓ Closing fragment
10-11 11:06	40m	-12 / -	DN1DAS	- / -12	3	✓ Closing fragment
10-11 11:01	40m	-16 / -	DN1DAS	- / -	2	Partial capture
10-05 16:55	40m	-22 / -9	LZ936BA	0 / -6	2	Partial capture
10-03 16:57	60m	- / -	9A4ZM	+2 / -	2	Partial capture
10-02 20:55	80m	-7 / -	TF4M	- / -4	3	Partial capture
10-02 20:47	80m	-6 / -4	SP7VCL	+7 / -	4	✓ Closing observed
09-13 18:05	80m	+6 / -2	SP9EPW	+2 / -5	5	✓ Full exchange observed
09-13 18:02	80m	+12 / -5	SQ8V	+8 / -	5	✓ Closing observed
09-13 17:59	80m	+4 / +9	OL900LTV	-5 / -15	3	Partial capture
09-08 19:30	80m	+2 / -	V51WH	- / -	11	Partial capture
09-08 19:18	80m	+6 / -	V51WH	- / -	10	Partial capture
09-08 19:10	80m	- / -14	RD4AAK	-16 / -	2	Partial capture
09-08 19:08	80m	+12 / -11	Z62NS	+10 / -14	5	✓ Full exchange observed
09-08 19:02	80m	+2 / -19	SM7/DL5BTE	+5 / -12	5	Partial capture
09-08 18:51	80m	+5 / 0	3Z100PKP	+11 / +1	2	Partial capture
09-08 18:36	40m	-8 / -	VJ6X	- / -17	4	✓ Closing fragment
09-08 18:31	40m	-14 / -19	DA2DA	0 / -	4	✓ Closing observed
08-31 18:20	20m	- / -14	TA2EE	-7 / -	5	✓ Closing fragment
08-30 19:01	40m	-9 / +5	SN40KZE	+8 / -4	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
111300  -5  459  DD3ZZ SP4AU KO03 (x3)
112330 -12 1758  DD6UVO SP4AU KO03
112345 -13 1759  SP4AU DD6UVO -09
112400 -13 1759  DD6UVO SP4AU R-07
112415 -16 1973  SP4AU DD6UVO RR73
112430 -13 1973  DD6UVO SP4AU 73
113115  -9 2391  DA125RH SP4AU KO03
113245 -14  938  SP4AU DL4DBM -11
113300 -13  939  DL4DBM SP4AU R-04
113315 -11  938  SP4AU DL4DBM RR73
113330 -16  938  DL4DBM SP4AU 73
113530 +10 2391  SP4AU DA125RH +17
113615 -11 2391  DA125RH SP4AU R+06

60m

UTC    dB Audio  Message
165730  +2 1299  SP4AU 9A4ZM JN86 (x2)

80m

UTC    dB Audio  Message
180445 +15  734  SQ8V SP4AU 73
180500  -1 1634  SP4AU SP9EPW -02 (x2)
180545  +8 1634  SP9EPW SP4AU R-05
180600  +4 1634  SP4AU SP9EPW RR73
180615  +4 1634  SP9EPW SP4AU 73
204745  -5  709  SP7VCL SP4AU KO03
204830  +9  709  SP4AU SP7VCL -04 (x2)
204915  -8  709  SP7VCL SP4AU 73
205245 -13 1928  SX2LGT SP4AU KO03
205515  -9 1890  TF4M SP4AU KO03 (x3)
205800  -7 1890  SP4AU RR73; JF4EQJ <...> -12

20m

UTC    dB Audio  Message
140430 +10 2665  SP4AU 9A170NT +16
153930 -11  353  SP4AU R9FDE LO88
171800  -5  479  SP4AU RI1FJL RR73
182045  -9  843  SP4AU TA2EE KM69 (x5)

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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