SQ4PKO — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving SQ4PKO, decoded by SO8OO in southeastern Poland. 988 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 52 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-14.

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 988 FT8 messages attributed to SQ4PKO as the transmitting token by decoded message structure across 52 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (49%), followed by 60 m (26%) and 40 m (19%). Most decodes (56%) 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 (77%); the estimated median was -1 dB.

Overview

988

Messages attributed

UTC dates decoded

137

Active 15-min windows

-1 dB

Estimated median S/N

Bands

160m · 29 80m · 480 60m · 256 40m · 187 20m · 36

First attributed message: 2026-06-08
Last attributed message: 2026-09-14 23:21 UTC

Observed FT8 message patterns

Attributed sample: 988 messages
Active dates: 52 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -15.2 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 97, moderate (-15 to -9 dB) 126, strong (≥ -8 dB) 765.

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 SQ4PKO in decoded directed-looking exchanges:

F1PBZ · France ×3 HB9EFK · Switzerland ×3 HB9CXZ · Switzerland ×3 SP6JIU · Poland ×3 SP9UOP · Poland ×3 F5RRS · France ×2 G8OO · England ×2 SV2HTW · Greece ×2 HA7TM · Hungary ×2 9A3AUH · Croatia ×2 9A9TT · Croatia ×2 LY2HM · Lithuania ×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 SQ4PKO

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 · 522 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 405 km (approx.)
Last such locator decoded: 2026-09-14 23:20 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	SQ4PKO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-14 23:20	80m	-3 / -12	HB9EKJ	-17 / -16	5	✓ Full exchange observed
09-14 23:19	80m	+2 / -	YL3NU	- / -	2	Partial capture
09-14 23:17	80m	+1 / -	9A3AUH	+6 / -13	5	✓ Closing observed
09-14 23:09	80m	+3 / -	EX7DY	- / -	10	Partial capture
09-14 23:07	80m	+10 / -10	IZ8WGR	-10 / -9	5	✓ Full exchange observed
09-14 23:05	80m	+12 / +8	OH2FQV	-16 / +2	5	✓ Full exchange observed
09-14 23:03	80m	+8 / -	SP2JJ	- / -	4	Partial capture
09-14 23:02	80m	+9 / -	8S2C	- / -11	3	✓ Closing fragment
09-14 23:00	80m	+12 / +3	SI4A	-6 / -4	5	✓ Full exchange observed
09-14 22:58	80m	+4 / -16	ON5WR	-12 / -11	5	✓ Full exchange observed
09-14 22:57	80m	+14 / -	SP9CLQ	- / -	2	Partial capture
09-14 22:56	80m	+9 / -	KP4AA	- / -	2	Partial capture
09-14 22:51	60m	-3 / -	F4LML	- / -	5	✓ Closing fragment
09-14 22:48	60m	-16 / -15	SP5MIG	-9 / -	5	✓ Closing observed
09-14 22:39	60m	- / -13	UR9QQ	-10 / -	7	✓ Closing fragment
09-14 22:39	60m	- / -8	VE1YX	-9 / -	3	Partial capture
09-14 22:38	60m	- / -2	G4DZE	-17 / -	2	✓ Closing fragment
09-14 22:32	40m	- / -1	VO1HH	-3 / -	2	✓ Closing fragment
09-14 22:30	40m	- / +10	HB9ELE	+10 / -	2	Partial capture
09-14 22:28	40m	- / -2	VO1AW	-11 / -	2	✓ Closing fragment
09-14 22:22	40m	- / -8	PD0LBY	-3 / -	4	✓ Closing fragment
09-14 22:19	40m	- / -13	EA8UP	-8 / -	2	✓ Closing fragment
09-14 06:11	40m	- / -7	SM7TZK	0 / -	3	✓ Closing fragment
09-13 03:33	80m	+9 / -10	OK1AY	0 / -5	5	✓ Full exchange observed
09-13 03:29	80m	+3 / +10	3Z100PKP	-8 / +2	3	Partial capture
09-13 03:27	80m	+5 / 0	HA9OA	+17 / -7	5	✓ Full exchange observed
09-13 03:22	80m	-4 / -11	YO8XFU	+10 / -8	5	✓ Full exchange observed
09-13 03:21	80m	-6 / -	LA7DMA	- / -9	2	✓ Closing fragment
09-13 03:19	160m	-24 / -	SP1ZMO	- / -	2	Partial capture
09-13 03:16	160m	- / -	DL1HDL	+4 / -	2	✓ Closing fragment
09-13 03:07	80m	-6 / -	LY7T	- / -	4	Partial capture
09-13 03:03	80m	-6 / -	OZ1AKZ	-10 / -26	4	✓ Closing observed
09-13 02:56	80m	+5 / -	SP6FME	+5 / -18	5	✓ Closing observed
09-13 02:55	80m	+8 / -	R4FDD	-5 / -9	3	✓ Closing observed
09-13 02:54	80m	+3 / -13	II0CDS	-14 / -20	5	✓ Full exchange observed
09-13 02:50	80m	+9 / -	EA6LU	+3 / -13	5	✓ Closing observed
09-13 02:49	80m	+13 / -	OH6FSO	-15 / -11	4	✓ Closing observed
09-13 02:45	80m	+1 / -14	SP1ZMO	0 / -1	10	✓ Full exchange observed
09-13 02:44	80m	-5 / -5	YL2EA	-4 / -14	5	✓ Full exchange observed
09-13 02:41	80m	-3 / -	OH2ZZ	-5 / 0	4	✓ Full exchange observed
09-13 02:39	80m	+7 / -4	SV2HTW	+4 / -6	5	✓ Full exchange observed
09-13 02:20	80m	+9 / +5	OH2BVT	-4 / -3	5	✓ Full exchange observed
09-13 02:17	80m	+4 / -	TF3VS	- / -	5	Partial capture
09-13 02:13	80m	+10 / -	VP2MAA	- / -16	7	✓ Closing fragment
09-13 02:11	80m	-3 / -3	OH2LV	-4 / -16	5	✓ Full exchange observed
09-13 02:07	60m	- / +2	HB9EFK	+2 / -	2	✓ Closing fragment
09-12 19:18	60m	+6 / -13	IZ0PTY	-14 / -19	7	Partial capture
09-12 19:15	60m	+4 / +8	LB7PJ	+2 / -1	5	✓ Full exchange observed
09-12 19:13	60m	0 / -	SP2OSA	- / -	4	Partial capture
09-12 19:13	60m	- / -	G3UHU	-8 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
102800 -16 1218  SQ4PKO IZ3KVD 73
081945  -4 2306  SQ4PKO 9A6P +02 (x2)
101000  -7 1770  SQ4PKO IZ3QAQ JN55 (x3)
102215 -13 1538  SQ4PKO HB9HZV -16
071945 -13 1890  SQ4PKO UR4QWW KN77 (x5)
090515 -17 1297  SQ4PKO YO3OBB +03 (x2)
092000 -18 2438  SQ4PKO <...> -18

80m

UTC    dB Audio  Message
231445  -1 1701  EX7DY SQ4PKO KO13 (x2)
231615  +6 1712  G8OO SQ4PKO KO13
231730  +5 2276  9A3AUH SQ4PKO KO13 (x3)
231845  +6 2275  SQ4PKO 9A3AUH RR73
231900  +1 2276  9A3AUH SQ4PKO 73
231930  +0 1764  YL3NU SQ4PKO KO13 (x2)
232030  +0 1394  HB9EKJ SQ4PKO KO13
232045 -17 1394  SQ4PKO HB9EKJ -12
232100  -8 1394  HB9EKJ SQ4PKO R-16
232115 -17 1394  SQ4PKO HB9EKJ RR73
232130  -2 1394  HB9EKJ SQ4PKO 73

60m

UTC    dB Audio  Message
224130 -10 1835  SQ4PKO UR9QQ KN77 (x3)
224745 -18 1144  CQ SQ4PKO KO13
224830 -10 1144  SQ4PKO SP5MIG KO02
224845 -17 1144  CQ SQ4PKO KO13
224900  -8 1144  SQ4PKO SP5MIG KO02 (x2)
224945 -16 1145  SP5MIG SQ4PKO RR73
225000 -10 1144  SQ4PKO SP5MIG 73
225115  -5 2782  F4LML SQ4PKO RR73 (x5)

40m

UTC    dB Audio  Message
061130  +1  822  SQ4PKO SM7TZK -07 (x3)
221930  -9 1784  SQ4PKO EA8UP -13 (x2)
222200  -1 1534  SQ4PKO PD0LBY JO22 (x4)
222845 -10 1432  SQ4PKO VO1AW R-02 (x2)
223000 +11  747  SQ4PKO HB9ELE +10 (x2)
223215  -4 2477  SQ4PKO VO1HH -01 (x2)

160m

UTC    dB Audio  Message
185415 -23 1694  CQ SQ4PKO KO13                        a1
185530  +4 1700  SQ4PKO OM2WQ -13
185545 -21 1699  OM2WQ SQ4PKO R-12
185600 +10 1700  SQ4PKO OM2WQ -13 (x4)
185830  -8 1194  SQ4PKO LY1SR -13 (x3)
031645  +3  995  SQ4PKO DL1HDL RR73 (x2)
031730 -22 1496  F5RMK SQ4PKO KO13
031900 -24 1498  SP1ZMO SQ4PKO KO13 (x2)

20m

UTC    dB Audio  Message
135700  -5 2501  SQ4PKO M7PHE R-06 (x2)
135830  -6 1135  SQ4PKO M7INZ +07 (x2)
140445  +3 1838  SQ4PKO M9UTD -14 (x2)
141000 -15 2238  SQ4PKO PD0JEW -15
142515  -5 1222  SQ4PKO 2E0MBH -10 (x2)
142715 -20 1166  SQ4PKO F1POK +03 (x2)
143015 -10 1408  SQ4PKO M1DBW -12 (x2)
174745  -6 1697  SQ4PKO M7KFM +00 (x2)

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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