SP8KO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO10

Receiver-side FT8 activity involving SP8KO, decoded by SO8OO in southeastern Poland. 306 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-21.

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 306 FT8 messages attributed to SP8KO as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (53%), followed by 40 m (25%) and 80 m (20%). Most decodes (96%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (79%); the estimated median was +2 dB.

Overview

306

Messages attributed

UTC dates decoded

Active 15-min windows

+2 dB

Estimated median S/N

Bands

160m · 161 80m · 60 40m · 75 20m · 10

First attributed message: 2026-06-09
Last attributed message: 2026-09-21 14:28 UTC

Observed FT8 message patterns

Attributed sample: 306 messages
Active dates: 20 UTC dates
Estimated median S/N: +2 dB
Estimated 10th-90th percentile: -16 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 243.

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 SP8KO in decoded directed-looking exchanges:

ER1CW · Moldova HZ1TT · Saudi Arabia RK3AW · European Russia TK5NJ · Corsica DF0KK · Fed. Rep. of Germany EA8UP · Canary Islands EW2ZC · Belarus TN8GD · Republic of the Congo VP2MAA · Montserrat

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 SP8KO

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: KO10 · 278 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 106 km (approx.)
Last such locator decoded: 2026-09-18 20:24 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	SP8KO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 14:28	40m	-17 / -	TK5NJ	- / -14	2	✓ Closing fragment
09-18 20:23	80m	+11 / +5	EW2ZC	+2 / -	5	✓ Full exchange observed
09-18 20:17	80m	+9 / -	EW8AAC	- / -	4	Partial capture
09-18 19:45	40m	- / -8	HZ1TT	-10 / -	3	✓ Closing fragment
09-13 02:30	80m	- / -	YO6LM	+4 / -	2	Partial capture
09-13 02:24	80m	+10 / -	VP2MAA	- / -9	8	✓ Closing fragment
09-11 21:41	40m	- / -	PD0LBY	-4 / -	2	Partial capture
09-04 21:25	160m	+11 / -	RI1FJL	- / -12	7	Partial capture
09-04 21:22	160m	+4 / -	RI1FJL	- / -	3	Partial capture
09-04 20:44	160m	+10 / -	RI1FJL	- / -	9	Partial capture
09-04 20:33	160m	+10 / -	RI1FJL	- / -	2	Partial capture
09-04 20:28	160m	0 / -	RI1FJL	- / -	2	Partial capture
09-04 20:22	160m	-1 / -	RI1FJL	- / -	6	Partial capture
09-04 20:12	160m	+1 / -	RI1FJL	- / -	8	Partial capture
09-04 20:06	160m	+3 / -	RI1FJL	- / -	3	Partial capture
09-03 22:49	160m	0 / -	RI1FJL	- / -	21	Partial capture
09-03 22:36	160m	0 / -	RI1FJL	- / -	11	Partial capture
09-03 22:16	160m	+6 / -	RI1FJL	- / -	6	Partial capture
09-03 22:06	160m	+3 / -	RI1FJL	- / -	8	Partial capture
09-03 21:48	160m	-1 / -	RI1FJL	- / -	9	Partial capture
09-03 21:43	160m	+2 / -	RI1FJL	- / -	4	Partial capture
09-03 21:36	160m	+9 / -	RI1FJL	- / -	6	Partial capture
09-03 21:31	160m	+2 / -	<...>	- / -	2	Partial capture
09-03 21:25	160m	- / -20	EK/RX3DPK	-10 / -	2	Partial capture
09-03 21:24	160m	+6 / -	<...>	- / -	3	Partial capture
09-03 21:15	160m	+7 / -	RI1FJL	- / -	3	Partial capture
09-03 20:53	160m	+4 / -	RI1FJL	- / -	33	Partial capture
09-01 20:12	80m	0 / -	V51WH	- / -	4	Partial capture
09-01 17:14	80m	-3 / -	9V1YC	- / -	5	Partial capture
08-29 22:37	160m	+3 / -	RI1FJL	- / -	6	Partial capture
08-29 20:23	160m	+4 / -13	<...>	-17 / -15	8	Partial capture
08-21 21:51	40m	- / -2	RK3AW	-16 / -	2	✓ Closing fragment
08-20 22:11	40m	-18 / -	<...>	- / -	3	Partial capture
08-19 22:25	40m	-19 / -	CT3HU	- / -	2	Partial capture
08-19 22:00	40m	-17 / -	9M2RSI	- / -	2	Partial capture
08-12 21:45	80m	+11 / -	9J2FI	- / -	6	Partial capture
08-12 20:56	80m	+5 / -17	EA8UP	-12 / -4	8	✓ Full exchange observed
08-02 21:27	10m	- / -5	SV5ADM	-14 / -	2	Partial capture
07-21 21:19	40m	-11 / -	EI9FVB	- / -2	3	Partial capture
07-16 18:48	80m	+10 / -	TL8GD	- / -	3	Partial capture
07-10 20:18	20m	- / -	G0GHL	-13 / -	3	Partial capture
07-07 22:01	80m	+10 / -	ZS6NL	- / -	4	Partial capture
07-06 21:23	80m	+14 / +2	DF0KK	+1 / -2	5	✓ Full exchange observed
07-06 21:20	80m	+15 / -12	TN8GD	-23 / -18	7	✓ Full exchange observed
07-06 21:15	80m	+14 / -	TN8GD	- / -	2	Partial capture
07-06 21:09	80m	+9 / -17	TN8GD	-23 / -	9	Partial capture
06-27 20:05	20m	- / -4	ER1CW	-19 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
222515 -19 1545  CT3HU SP8KO KO10 (x2)
222815  -8 1544  SP8KO G7LHK IO92
221115 -19 2095  <...> SP8KO KO10 (x3)
215115 -17 1154  SP8KO RK3AW -02 (x2)
214130  -3 1534  SP8KO PD0LBY JO22 (x2)
194500 -11 1728  SP8KO HZ1TT -08 (x3)
142815 -18 2047  TK5NJ SP8KO R-14 (x2)

80m

UTC    dB Audio  Message
022845 +13 1276  VP2MAA SP8KO KO10 (x2)
022930 -15  997  SP8KO RR73; W7VA <...> -10
022945 +12 1276  VP2MAA SP8KO 73
023000  +8 2559  SP8KO YO6LM KN25 (x2)
201715  +8 1667  EW8AAC SP8KO KO10 (x4)
202345 +10 1283  EW2ZC SP8KO KO10 (x2)
202430  +2 2374  SP8KO EW2ZC +05
202445 +13 1283  EW2ZC SP8KO R+25
202500  +2 2374  SP8KO EW2ZC RR73

160m

UTC    dB Audio  Message
204815  +5 2095  RI1FJL SP8KO KO10 (x15)

10m

UTC    dB Audio  Message
212730 -15 1179  SP8KO SV5ADM -05 (x2)

20m

UTC    dB Audio  Message
215830 -16 2363  SP8KO RR73; UA1AQC <...> -16
200545 -20 1517  SP8KO ER1CW -04 (x3)
201800 -14 2396  SP8KO G0GHL IO82 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee