OK2USB — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN89

Receiver-side FT8 activity involving OK2USB, decoded by SO8OO in southeastern Poland. 1,007 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-27.

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 1,007 FT8 messages attributed to OK2USB as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%), followed by 20 m (0%). Most decodes (82%) 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 (85%); the estimated median was 0 dB.

Overview

1,007

Messages attributed

UTC dates decoded

Active 15-min windows

0 dB

Estimated median S/N

Bands

40m · 1,004 20m · 3

First attributed message: 2026-06-06
Last attributed message: 2026-09-27 09:23 UTC

Observed FT8 message patterns

Attributed sample: 1,007 messages
Active dates: 15 UTC dates
Estimated median S/N: 0 dB
Estimated 10th-90th percentile: -9 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 132, strong (≥ -8 dB) 858.

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 OK2USB in decoded directed-looking exchanges:

SM3NRY · Sweden ×3 DG2EBG · Fed. Rep. of Germany ×2 DK6MR · Fed. Rep. of Germany ×2 DK7JL · Fed. Rep. of Germany ×2 I4RHP · Italy ×2 PD2FS · Netherlands ×2 S57MGP · Slovenia ×2 SP9BEB · Poland ×2 SP9SOS · Poland ×2 DB2VS · Fed. Rep. of Germany EA2BHE · Spain F1PPH · France

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 OK2USB

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: JN89 · 392 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 348 km (approx.)
Last such locator decoded: 2026-07-28 21:21 UTC

Other locator fields attributed to this token: JN88 (80) and JN74 (3).

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	OK2USB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 02:54	40m	- / -4	KW4BY	-12 / -	3	✓ Closing fragment
10-04 02:45	40m	- / -10	KW4BY	-12 / -	2	Partial capture
10-04 02:36	40m	- / -13	KV3R	-14 / -	2	✓ Closing fragment
10-04 01:39	40m	- / -15	NC3S	-6 / -	2	Partial capture
10-04 00:17	40m	- / -14	N4DWD	-18 / -	2	✓ Closing fragment
10-03 22:31	40m	- / -12	K1RH	-16 / -	2	✓ Closing fragment
09-30 23:46	40m	- / -	UN7JO	0 / -	3	✓ Closing fragment
09-29 22:47	40m	- / -11	WY3A	-19 / -	4	✓ Closing fragment
09-29 00:11	40m	- / -16	OD5ZZ	-12 / -	2	✓ Closing fragment
09-28 05:16	40m	- / -	IK2TCV	-9 / -	3	✓ Closing fragment
09-28 05:14	40m	- / -14	LZ2VQ	-11 / -	2	✓ Closing fragment
09-28 05:12	40m	- / -	YT3MD	-16 / -	2	✓ Closing fragment
09-28 03:21	40m	- / -13	5Z4VJ	-9 / -	3	✓ Closing fragment
09-28 00:12	40m	- / -15	OD5ZZ	-12 / -	2	Partial capture
09-27 07:12	40m	0 / -	CM7DJG	- / -19	4	Partial capture
08-24 11:15	20m	- / -	DK5CR	-8 / -	5	Partial capture
08-24 10:44	20m	- / -	G0LJV	+2 / -	2	Partial capture
08-24 10:44	20m	- / -2	ON3MOH	-2 / -	2	Partial capture
08-24 10:43	20m	- / -	WV2I	-18 / -	2	Partial capture
08-24 10:37	20m	- / -	IU2VYI	-5 / -	2	Partial capture
08-24 10:37	20m	- / -	M7GDQ	-12 / -	2	Partial capture
08-24 10:36	20m	- / -	IZ2SXZ	-4 / -	2	Partial capture
08-24 10:36	20m	- / -	PI4TX	-22 / -	2	Partial capture
08-24 10:35	20m	- / -	EA4GSB	-11 / -	3	Partial capture
08-24 10:33	20m	- / -3	PD0WC	-4 / -	3	✓ Closing fragment
08-24 10:28	20m	- / +8	R7OV	-3 / -	3	✓ Closing fragment
08-24 10:22	20m	- / -9	PA0RRS	-18 / -	3	Partial capture
08-24 10:22	20m	- / -3	PD1RO	-3 / -	3	✓ Closing fragment
08-24 10:22	20m	- / +3	RA1QX	-4 / -	5	✓ Closing fragment
08-24 10:20	20m	- / -	K4RUM	+2 / -	4	Partial capture
08-24 10:17	20m	- / -	DB2VS	-12 / -	9	✓ Closing fragment
08-24 10:17	20m	- / +5	G7SQC	-6 / -	5	Partial capture
08-24 10:13	20m	- / -	RX3AEX	0 / -	2	✓ Closing fragment
08-24 10:02	20m	- / -2	K2UPD	+9 / -	6	✓ Closing fragment
08-24 09:57	20m	- / -	MM7FTH	+2 / -	3	Partial capture
08-24 09:56	20m	- / -	PH3BDJ	-11 / -	3	Partial capture
08-24 09:55	20m	- / -	OE8PIT	+9 / -	3	Partial capture
08-24 09:54	20m	- / -5	G0LKL	-2 / -	13	✓ Closing fragment
08-24 09:53	20m	- / +3	ON8WI	-1 / -	5	✓ Closing fragment
08-24 09:53	20m	- / +3	PD0PWH	+4 / -	2	✓ Closing fragment
08-24 09:53	20m	- / -3	F1PPH	+5 / -	4	✓ Closing fragment
08-24 09:50	20m	- / 0	EA2BHE	-2 / -	2	✓ Closing fragment
08-14 20:36	40m	- / -	EW6X	-4 / -	4	Partial capture
08-14 20:36	40m	-9 / -3	PA3MVD	-14 / -	3	✓ Closing observed
08-14 20:35	40m	-7 / -	ON7VZ	- / -9	2	✓ Closing fragment
08-14 20:34	40m	-8 / -	JR3NZC	- / -15	2	Partial capture
08-14 20:31	40m	-5 / -	SP7MJX	- / +3	3	✓ Closing fragment
08-14 20:29	40m	- / -	PA3MVD	-15 / -	3	Partial capture
08-14 20:28	40m	-8 / -	SP9MRP	- / -7	4	✓ Closing fragment
08-14 20:27	40m	-2 / -	F5IET	- / -9	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
001730 -19 1492  OK2USB N4DWD RR73
003330 -13 2070  OK2USB N2LQH RR73
005900 -18 1921  OK2USB K4CAE +02
013045  -6  435  OK2USB WZ8S RR73
013945  -7  678  OK2USB NC3S -15 (x2)
022845 -19 1678  OK2USB AD8IO RR73
023615 -15 2043  OK2USB KV3R -13 (x2)
024045 -14 1193  OK2USB W1YK RRR
024515 -12  892  OK2USB KW4BY -10 (x5)

20m

UTC    dB Audio  Message
103730 -11 2245  OK2USB M7GDQ IO94
103800  -8  377  OK2USB IU2VYI JN45
103900  +7 1025  OK2USB DJ7XB JO52
104200  +3 1025  OK2USB G0LJV IO93
104300 -18 2142  OK2USB WV2I EM83 (x2)
104400  -4  701  OK2USB ON3MOH JO10
104430  +3 1025  OK2USB G0LJV IO93
104500  -1  376  OK2USB ON3MOH R-02
104500  +2 1025  OK2USB G0LJV IO93
111530 -14 1610  OK2USB DK5CR JO42 (x5)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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