SP5WSL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO02

Receiver-side FT8 activity involving SP5WSL, decoded by SO8OO in southeastern Poland. 76 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-12.

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 76 FT8 messages attributed to SP5WSL as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (53%), followed by 40 m (32%) and 20 m (16%). Several six-hour UTC windows tied for the largest share (74%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+4 dB

Estimated median S/N

Bands

80m · 40 40m · 24 20m · 12

First attributed message: 2026-06-07
Last attributed message: 2026-09-12 20:04 UTC

Observed FT8 message patterns

Attributed sample: 76 messages
Active dates: 8 UTC dates
Estimated median S/N: +4 dB
Estimated 10th-90th percentile: -8 to +13 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 69.

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 SP5WSL in decoded directed-looking exchanges:

SQ7SE · Poland ×7 ON6CQ · Belgium XU7O · Cambodia 4X5JK · Israel

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 SP5WSL

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: KO02 · 57 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 290 km (approx.)
Last such locator decoded: 2026-09-12 20:04 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	SP5WSL S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 20:03	40m	-23 / -	SQ7SE	- / -	2	Partial capture
09-12 18:38	80m	+1 / -5	SQ7SE	+6 / -	15	✓ Closing observed
09-03 20:31	80m	- / -	UA4FKT	+7 / -	3	Partial capture
09-03 20:26	80m	+10 / -	SQ7SE	- / -	8	✓ Closing fragment
08-29 19:36	80m	- / -	DO9BAU	-6 / -	3	Partial capture
08-29 19:28	80m	+10 / +10	SQ7SE	+2 / -	21	✓ Closing observed
08-20 19:27	20m	- / -	XU7O	-8 / -	2	✓ Closing fragment
08-20 18:46	40m	+7 / -	SQ7SE	+2 / -10	8	✓ Closing observed
07-31 08:23	20m	- / -	DL1R	-2 / -	5	Partial capture
07-31 08:23	20m	- / -3	ON6CQ	-18 / -	4	✓ Closing fragment
07-05 12:43	20m	+2 / -	OE8ARQ	- / -25	12	Partial capture
06-25 18:49	80m	+14 / -	SQ7SE	- / -2	3	✓ Closing fragment
06-25 18:46	40m	-9 / -	SQ7SE	- / -	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
184600  -8 1267  SQ7SE SP5WSL KO02 (x3)
221645 -18 2302  SP5WSL 4X5JK RR73
184600  -3 1558  SQ7SE SP5WSL KO02 (x6)
184945  +2 1025  SP5WSL SQ7SE RR73
185000 +21  565  SQ7SE SP5WSL 73 (x3)

80m

UTC    dB Audio  Message
183845 -24 1117  SQ7SE SP5WSL KO02 (x9)
184400  +7 1263  SP5WSL SQ7SE -05
184415  +5 1604  SQ7SE SP5WSL KO02
184430  +8 1263  SP5WSL SQ7SE -01
184445  +8 1603  SQ7SE SP5WSL R KO02
184500  +3 1263  SP5WSL SQ7SE RR73
184515  +6 1604  SQ7SE SP5WSL 73

20m

UTC    dB Audio  Message
082315 -21 1661  SP5WSL ON6CQ JO11
082315 -14 1385  SP5WSL DL3MN JN58
082315  -4 2670  SP5WSL DL1R JN58
082345 -18 1660  SP5WSL ON6CQ JO11
082345  -8 2671  SP5WSL DL1R JN58
082415 -15 1660  SP5WSL ON6CQ R-03 (x2)
082445  +2 2671  SP5WSL DL1R JN58 (x3)
182945 -11 1527  SP5WSL PD3CFG JO22
183345  -9  425  SP5WSL HS0ZOY -15
192400  -2  486  SP5WSL XU7O -11 (x3)

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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