SP4OLP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO13

Receiver-side FT8 activity involving SP4OLP, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-15 and 2026-09-04.

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 29 FT8 messages attributed to SP4OLP as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (55%), followed by 80 m (45%). Most decodes (97%) 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 (97%); the estimated median was +4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+4 dB

Estimated median S/N

Bands

80m · 13 40m · 16

First attributed message: 2026-07-15
Last attributed message: 2026-09-04 18:55 UTC

Observed FT8 message patterns

Attributed sample: 29 messages
Active dates: 5 UTC dates
Estimated median S/N: +4 dB
Estimated 10th-90th percentile: -7 to +16 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 28.

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 SP4OLP in decoded directed-looking exchanges:

R3TKM · European Russia YO9PH · Romania

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 SP4OLP

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: KO13 · 16 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 405 km (approx.)
Last such locator decoded: 2026-09-04 18:55 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	SP4OLP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 18:54	40m	+7 / -	AM42SDC	- / -	2	Partial capture
09-04 18:44	80m	+19 / 0	3Z100PKP	+3 / +9	2	Partial capture
09-04 18:41	80m	+13 / -	OL900LTV	- / -	3	Partial capture
09-04 14:20	40m	-4 / -	SO100PKP	- / 0	2	Partial capture
09-03 16:16	40m	- / -	SP3IPA	+5 / -	5	Partial capture
09-03 16:13	40m	-3 / -2	R3TKM	-6 / -	5	✓ Closing observed
08-02 18:56	40m	-7 / -7	SP1905MFK	-15 / +9	2	Partial capture
08-02 18:52	80m	+15 / -16	JG3TRB	-11 / -9	8	Partial capture
08-02 18:50	80m	+5 / -	<...>	- / +2	2	Partial capture
07-15 19:26	80m	+11 / -	OL900JAR	+4 / +9	4	Partial capture
07-15 19:19	40m	-8 / -	YO9PH	- / +7	2	✓ Closing fragment
07-15 19:05	40m	-3 / -	OL900JAR	+11 / -	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
161315  -1  892  R3TKM SP4OLP KO13 (x2)
161500  -6  892  SP4OLP R3TKM -02 (x2)
161545  -3  892  R3TKM SP4OLP 73
161600  +4  594  SP4OLP SP3IPA JO82 (x5)
142045  -3 1379  SO100PKP SP4OLP KO13 (x2)
175645  +4  378  AM42SDC SP4OLP KO13 (x3)

80m

UTC    dB Audio  Message
185200 -10  360  SP4OLP JG3TRB PM74 (x2)
185245 +16  358  JG3TRB SP4OLP -09 (x3)
185430 -10  360  SP4OLP JG3TRB R-16 (x3)
182515 +15  347  <...> SP4OLP KO13
182530  -5  383  SP4OLP HF100PKP +06
184130  +7 1318  <OL900LTV> SP4OLP KO13 (x3)
184430  +3  383  SP4OLP 3Z100PKP +00
184445 +19  382  3Z100PKP SP4OLP R+09

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.

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