SP8FNA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO11

Receiver-side FT8 activity involving SP8FNA, decoded by SO8OO in southeastern Poland. 123 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-19.

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 123 FT8 messages attributed to SP8FNA as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (55%), followed by 80 m (44%) and 40 m (1%). Most decodes (100%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (99%); the estimated median was +13 dB.

Overview

123

Messages attributed

UTC dates decoded

Active 15-min windows

+13 dB

Estimated median S/N

Bands

160m · 68 80m · 54 40m · 1

First attributed message: 2026-06-08
Last attributed message: 2026-09-19 21:53 UTC

Observed FT8 message patterns

Attributed sample: 123 messages
Active dates: 5 UTC dates
Estimated median S/N: +13 dB
Estimated 10th-90th percentile: +3 to +19 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 122.

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 SP8FNA in decoded directed-looking exchanges:

7X2TT · Algeria EA1CQ · Spain EX7CQ · Kyrgyzstan HA5LB · Hungary ON6MAT · Belgium R7KO · European Russia RI1FJZ · Franz Josef Land RK6OQ · European Russia 9H4JX · Malta F5RRS · France OA4ENG · Peru R6HV/P · European Russia

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 SP8FNA

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: KO11 · 52 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 193 km (approx.)
Last such locator decoded: 2026-09-19 21:51 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	SP8FNA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 21:51	160m	+9 / -	RI1FJZ	- / -24	4	✓ Closing fragment
09-19 21:18	160m	+12 / -2	7X2TT	-4 / -1	22	✓ Full exchange observed
09-19 21:16	160m	+14 / -	RA0AF	- / -	2	Partial capture
09-19 21:07	160m	+14 / -	7X2TT	- / -	6	Partial capture
09-19 20:32	160m	+12 / -	<...>	- / -11	2	Partial capture
09-19 20:28	160m	+12 / -	R2EA/P	- / 0	2	Partial capture
09-19 20:24	160m	+12 / -9	R7KO	-4 / -14	5	✓ Full exchange observed
09-19 20:10	160m	+13 / -7	RK6OQ	+5 / -	3	✓ Closing observed
09-19 20:02	160m	+16 / -	RK6OQ	-3 / +4	4	Partial capture
09-19 20:00	160m	+14 / -21	HA5LB	-10 / -13	6	✓ Full exchange observed
09-19 20:00	160m	+14 / -	ON6MAT	-18 / -9	3	✓ Closing observed
09-19 19:56	160m	+14 / -16	EX7CQ	-24 / -13	8	✓ Full exchange observed
09-19 19:49	160m	+9 / -	R3RRC/P	- / -11	6	Partial capture
09-19 19:46	160m	+8 / -	R2EA/P	- / -	5	Partial capture
09-17 04:35	40m	- / -13	F5RRS	-10 / -	4	✓ Closing fragment
09-17 04:33	40m	- / -18	OA4ENG	-22 / -	3	✓ Closing fragment
09-13 21:20	80m	+12 / -	EM70WWW	- / +1	3	Partial capture
09-13 21:05	80m	+14 / -	R3DIK/M	- / +3	2	Partial capture
09-13 21:00	80m	+20 / -	R3DIK/M	- / -2	2	Partial capture
09-13 20:54	80m	+17 / -	SN40KZE	- / 0	4	Partial capture
09-13 20:43	80m	+22 / -	JG3TRB	-9 / -13	3	Partial capture
09-13 20:41	80m	+18 / -	SP5DFK/QRP	- / -	2	Partial capture
09-13 20:34	80m	+21 / -	JH2FXK	- / -19	4	Partial capture
09-13 20:29	80m	- / -	SP9UH	+3 / -	3	Partial capture
09-13 20:27	80m	+22 / -	SP5DFK/QRP	- / 0	2	Partial capture
09-12 18:44	40m	-22 / -11	R6HV/P	-13 / -	3	✓ Closing observed
09-12 17:16	80m	+12 / -8	R4AGE/P	-8 / -	5	✓ Closing observed
09-12 17:00	80m	+19 / -	DL9KM	-5 / -11	7	Partial capture
09-12 16:58	80m	+11 / -10	UB3ADO/P	-14 / 0	6	✓ Full exchange observed
09-12 16:50	80m	+19 / -	SP100PKP	- / +3	2	Partial capture
09-02 20:35	80m	+2 / -	<...>	- / -	2	Partial capture
09-02 20:29	80m	-3 / -	<...>	- / -	4	Partial capture
09-02 20:26	80m	+3 / -	<...>	- / -	2	Partial capture
07-04 09:33	20m	- / -	DJ0MAB	-24 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
212945 +16  752  7X2TT SP8FNA +01 (x7)
213630  -6  496  SP8FNA 7X2TT R-02
213645  +4 1533  7X2TT SP8FNA RR73
213700  -3  496  SP8FNA 7X2TT RR73
214345  +5 2173  RI1FJZ SP8FNA -15 (x5)

40m

UTC    dB Audio  Message
184400 -12 2334  SP8FNA R6HV/P -11 (x2)
184445 -22 2446  R6HV/P SP8FNA 73
191000 -10 1359  SP8FNA RA3WY/P -07
043330 -24 2402  SP8FNA OA4ENG -18 (x3)
043530 -10 1976  SP8FNA F5RRS JN36 (x4)
045730 -23 2020  SP8FNA 9H4JX RR73

80m

UTC    dB Audio  Message
205545 +18 2606  SN40KZE SP8FNA +11 (x2)
205630  +0 2807  SP8FNA RR73; RU6K <...> +02
210045 +21 2809  R3DIK/M SP8FNA KO11 (x2)
210130  +5 2807  SP8FNA RR73; E77EA <...> -04
210545 +15 2683  <R3DIK/M> SP8FNA +03 (x2)
210630  -1 2807  SP8FNA RR73; RL6LU <...> +04
212045  +7 2614  EM70WWW SP8FNA +01 (x3)
212230  +2 2807  SP8FNA RR73; UA3GX <...> -16
213615 +24 2643  R3DIK/M SP8FNA KO11
215230  +9 1357  II7IAME SP8FNA KO11

20m

UTC    dB Audio  Message
093345 -24 1620  SP8FNA DJ0MAB JN49
093415 -21 1855  SP8FNA F4HSB JN37
093415 -24 1620  SP8FNA DJ0MAB JN49
104230 -13 2473  SP8FNA DF3QL JO40

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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