SP6U — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO80

Receiver-side FT8 activity involving SP6U, decoded by SO8OO in southeastern Poland. 2,757 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 75 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-05.

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 2,757 FT8 messages attributed to SP6U as the transmitting token by decoded message structure across 75 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (42%), followed by 80 m (39%) and 60 m (17%). Most decodes (57%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.1 dB.

Overview

2,757

Messages attributed

UTC dates decoded

254

Active 15-min windows

-7.1 dB

Estimated median S/N

Bands

160m · 13 80m · 1,082 60m · 482 40m · 1,162 20m · 18

First attributed message: 2026-06-07
Last attributed message: 2026-10-05 19:20 UTC

Observed FT8 message patterns

Attributed sample: 2,757 messages
Active dates: 75 UTC dates
Estimated median S/N: -7.1 dB
Estimated 10th-90th percentile: -16 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 333, moderate (-15 to -9 dB) 881, strong (≥ -8 dB) 1,543.

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 SP6U in decoded directed-looking exchanges:

F1PBZ · France ×7 DL9KM · Fed. Rep. of Germany ×3 F1IQH · France ×3 HA3GX · Hungary ×3 SP6AMI · Poland ×3 IK4LZH · Italy ×2 PF1B · Netherlands ×2 TA3NK · Asiatic Turkey ×2 DF8RU · Fed. Rep. of Germany ×2 DL1IP · Fed. Rep. of Germany ×2 DL2VN · Fed. Rep. of Germany ×2 IK4CBO · Italy ×2

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 SP6U

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: JO80 · 1,864 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 347 km (approx.)
Last such locator decoded: 2026-10-05 19:20 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	SP6U S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 17:53	40m	- / -3	PA3FXT	-8 / -	3	✓ Closing fragment
10-06 17:46	40m	- / -13	UB1CCL	-13 / -	3	Partial capture
10-06 17:45	40m	- / -20	DL9EBP/P	-20 / -	2	Partial capture
10-06 02:32	80m	- / -12	DL4DP	-8 / -	3	✓ Closing fragment
10-05 02:46	80m	+14 / -	OH3DJP	- / -8	3	Partial capture
10-05 02:45	80m	+16 / -	EB1LA	- / -3	2	Partial capture
10-05 02:43	80m	+2 / -3	DO4DXA	+14 / +6	5	✓ Full exchange observed
10-05 02:40	80m	+4 / -	ON4MAP	- / -5	2	Partial capture
10-04 16:50	60m	-13 / -	SV1FJP	- / -5	2	Partial capture
10-04 03:35	60m	- / -	F5MXH	-1 / -	2	Partial capture
10-02 04:32	60m	- / -15	E75FM	-9 / -	7	✓ Closing fragment
10-02 04:30	60m	- / -	OO0O	-12 / -	2	Partial capture
10-02 04:29	60m	- / +2	LB4PI	-14 / -	2	Partial capture
10-02 04:26	60m	- / -4	ES2AJ	+1 / -	2	✓ Closing fragment
10-01 20:35	80m	+5 / -	SM2OTU	- / -14	3	✓ Closing fragment
10-01 20:33	80m	+3 / -8	BD8ENU	+7 / -1	6	✓ Full exchange observed
10-01 05:05	80m	- / -	DO1OAS	+3 / -	8	Partial capture
10-01 04:57	80m	+6 / -15	MM0JTV	-24 / -13	4	✓ Full exchange observed
10-01 04:49	60m	- / -	F1TXI	-6 / -	29	Partial capture
10-01 04:47	60m	- / +8	SQ2JSE	-9 / -	4	✓ Closing fragment
10-01 04:43	60m	-7 / -	K6VHF/HR9	- / -	4	Partial capture
09-30 20:50	80m	- / -	SP4WJ	-3 / -	10	Partial capture
09-30 03:45	60m	- / -7	EA3AKY	-4 / -	3	✓ Closing fragment
09-30 03:43	60m	- / 0	F5BEG	+3 / -	3	✓ Closing fragment
09-30 03:39	60m	- / -8	IZ7DJS	-9 / -	3	✓ Closing fragment
09-30 03:35	60m	- / -23	SV9AUP	-15 / -	3	Partial capture
09-30 03:33	60m	- / +3	PA3BUD	-4 / -	3	✓ Closing fragment
09-30 03:27	60m	- / +4	OE9KFV	-23 / -	2	✓ Closing fragment
09-29 21:16	60m	- / +2	DK9MS	-10 / -	3	✓ Closing fragment
09-29 21:04	60m	- / -2	DH4PAP	-11 / -	5	✓ Closing fragment
09-29 20:59	60m	- / -9	F1HFP	-4 / -	5	✓ Closing fragment
09-29 20:56	60m	- / +7	DL1OBF	+2 / -	3	✓ Closing fragment
09-29 06:48	40m	- / -7	R2PX	-15 / -	2	✓ Closing fragment
09-29 06:45	40m	- / +4	EW6DM	-3 / -	3	✓ Closing fragment
09-28 21:10	80m	+3 / -	CN8WK	- / -	5	Partial capture
09-28 20:57	60m	- / -5	DG1IAN	-10 / -	2	✓ Closing fragment
09-28 20:55	60m	-21 / -	S56FPW	-1 / +1	4	✓ Closing observed
09-28 20:53	60m	-19 / +1	DL1IP	-13 / -	4	✓ Closing observed
09-28 20:50	60m	-8 / -9	IW2CAK	-8 / -6	4	✓ Full exchange observed
09-28 20:50	60m	-18 / -12	EA1MX	-14 / -	6	✓ Closing observed
09-28 20:49	60m	- / -9	G3UHU	-6 / -	6	✓ Closing fragment
09-28 20:49	60m	-13 / +1	DL3NGN	0 / -	5	✓ Full exchange observed
09-28 04:02	40m	- / -	G1UMV	-20 / -	2	Partial capture
09-27 18:07	60m	-5 / -	OE9GWV	-17 / -7	9	Partial capture
09-27 18:06	60m	-5 / -5	IZ2WYA	-24 / -10	4	Partial capture
09-27 18:03	60m	-4 / -7	G0JDK	-3 / +6	5	✓ Full exchange observed
09-27 17:15	60m	-5 / -3	OM7FS	-7 / -	4	✓ Closing observed
09-27 17:13	60m	+1 / -	SV1SLK	- / -22	3	Partial capture
09-27 17:09	60m	-4 / -1	DL1MST	-6 / +7	5	✓ Full exchange observed
09-27 17:09	60m	-6 / +2	OE5DML	-6 / +5	6	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
064845 -17 2460  SP6U R2PX R-07 (x2)
205930 -15  976  SP6U G7NUT IO91
164515  -9  416  CQ SP6U JO80                          a1 (x4)
174530 -23 1697  SP6U DL9EBP/P R-20
174600 -16 1697  SP6U UB1CCL KO48
174630 -18 1697  SP6U DL9EBP/P R-20
174730  -8 1698  SP6U UB1CCL R-13 (x2)
175300  -8 1978  SP6U PA3FXT JO33 (x3)

80m

UTC    dB Audio  Message
024330 +17  506  SP6U DO4DXA JN58
024345  -1  880  DO4DXA SP6U +06
024400 +13  506  SP6U DO4DXA R-03
024415  +6  880  DO4DXA SP6U RRR
024430 +13  506  SP6U DO4DXA 73
024445  +4  880  CQ SP6U JO80
024515 +12  880  EB1LA SP6U -03 (x2)
024615 +18  880  OH3DJP SP6U -08 (x3)
024745  +2  880  CQ SP6U JO80
023200  -7 1595  SP6U DL4DP JO31 (x3)

60m

UTC    dB Audio  Message
043400  -9 2879  SP6U E75FM 73 (x4)
033500  -5 1052  SP6U F5MXH JN07 (x2)
164745 -12 1552  CQ SP6U JO80 (x5)
165015 -14 1639  SV1FJP SP6U -05 (x2)
192045 -23 2073  CQ SP6U JO80                          a1
192430 -11  804  SP6U SQ9BC -02

160m

UTC    dB Audio  Message
164345 -22 1783  SP6U HA5CPN JN87 (x3)
164500 -23 1783  HA5CPN SP6U RRR (x2)
171730 -14 1345  CQ SP6U JO80 (x10)

20m

UTC    dB Audio  Message
165830 -15 1692  SP6U I3QDK R-24 (x2)
130130 -14 2228  SP6U F4NJU JN29 (x3)
173145  +9 1995  SP6U RW3DDZ KO86 (x2)
152945  -5 1397  SP6U TA3F (x4)
182730  -8 2783  SP6U 7K1CPT -19 (x4)

10m

UTC    dB Audio  Message
094730  -7  936  SP6U EA3CU R-08 (x2)
093315 -22 1590  SP6U R3KCW KO90 (x3)
095215  -5  663  SP6U PF1B JO22 (x3)
084115  -9 2376  SP6U R6DWD -15
104830 -14 1323  SP6U DO5PY JN49 (x3)
105600  +8  493  SP6U IK4LZH JN54 (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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