KS1WK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN31

Receiver-side FT8 activity involving KS1WK, decoded by SO8OO in southeastern Poland. 428 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-11.

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 428 FT8 messages attributed to KS1WK as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 20 m (44%). Several six-hour UTC windows tied for the largest share (85%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (65%); the estimated median was -17 dB.

Overview

428

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

40m · 238 20m · 190

First attributed message: 2026-06-10
Last attributed message: 2026-09-11 00:55 UTC

Observed FT8 message patterns

Attributed sample: 428 messages
Active dates: 14 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -21 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 278, moderate (-15 to -9 dB) 145, strong (≥ -8 dB) 5.

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 KS1WK in decoded directed-looking exchanges:

F4DIA · France ×2 F4JZW · France ×2 R6FY · European Russia ×2 R2BDR · European Russia ×2 DJ2DL · Fed. Rep. of Germany ×2 F4IGP · France ×2 GJ0KYZ · Jersey ×2 OK1AMF · Czech Republic ×2 F4JJA · France ×2 IK4LZH · Italy ×2 Z34K · North Macedonia IU3UQW · Italy

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 KS1WK

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: FN31 · 250 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,913 km (approx.)
Last such locator decoded: 2026-09-11 00:55 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	KS1WK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-11 00:55	40m	- / -	R6ZEJ	-9 / -	2	Partial capture
09-11 00:43	40m	- / -15	5B4AMH	-5 / -	3	Partial capture
09-11 00:38	40m	-22 / -	KF9FJ	- / -7	2	✓ Closing fragment
09-11 00:36	40m	-24 / +3	KB2KBC	-12 / -	3	✓ Closing observed
09-11 00:29	40m	-20 / -	KG9OH	- / 0	2	✓ Closing fragment
09-11 00:26	40m	- / -	UT7HX	-10 / -	2	Partial capture
09-11 00:25	40m	-18 / -8	UR1CCT	-7 / -9	5	✓ Full exchange observed
09-11 00:24	40m	-18 / -16	RN6HK	+3 / -5	5	✓ Full exchange observed
09-08 05:18	80m	- / -	F6FTB	-7 / -	8	Partial capture
09-08 05:11	80m	- / -20	F4UJU	-5 / -	4	✓ Closing fragment
09-08 03:01	80m	- / -19	W2GMW	-20 / -	2	Partial capture
09-08 02:07	80m	- / -1	KN3A	-20 / -	3	Partial capture
09-08 01:49	40m	- / -	IU1MIH	-14 / -	3	Partial capture
09-08 01:43	40m	-15 / -	NA4FK	- / -22	3	Partial capture
09-07 23:53	40m	- / -14	IK2XDE	-13 / -	5	Partial capture
09-07 07:15	40m	- / -	PA3BMB	-10 / -	2	Partial capture
09-07 06:37	40m	- / -13	DK6WH	+4 / -	10	✓ Closing fragment
09-07 06:35	40m	- / -	F1ROA	-18 / -	2	Partial capture
09-07 06:15	40m	- / -14	DL6ZOG	+1 / -	11	Partial capture
09-07 06:06	40m	- / -18	DL1PAB	0 / -	2	Partial capture
09-07 06:06	40m	- / -11	DL6ZOG	+1 / -	7	Partial capture
09-07 05:57	40m	- / -12	ON8PR	-9 / -	3	Partial capture
09-07 05:53	40m	- / -13	PD5FL	-1 / -	11	Partial capture
09-07 05:52	40m	- / -15	DL6NDN	+9 / -	9	Partial capture
09-07 05:50	40m	- / -	SM7MDI	-13 / -	9	Partial capture
09-07 05:47	40m	- / -19	DH3KR	-9 / -	5	Partial capture
09-07 05:45	40m	- / -14	SP4MPH	-12 / -	2	Partial capture
09-07 05:42	40m	- / -6	HB9IOB	-10 / -	3	Partial capture
09-07 05:40	40m	- / -	PD0WL	-13 / -	4	✓ Closing fragment
09-07 05:39	40m	- / -25	OZ6G	+8 / -	4	✓ Closing fragment
09-07 05:38	40m	- / -15	PD3PAM	-10 / -	4	✓ Closing fragment
09-07 05:34	40m	- / -16	F4IGP	-7 / -	5	✓ Closing fragment
09-07 05:32	40m	- / -13	F1RCQ	+2 / -	6	✓ Closing fragment
09-07 05:31	40m	- / -21	M0KSE	-11 / -	3	Partial capture
09-07 05:25	40m	- / -20	DL1PAB	+4 / -	11	Partial capture
09-07 05:22	40m	- / -	OK1XOX	+14 / -	2	Partial capture
09-07 05:14	40m	- / -14	F4JJA	-5 / -	6	✓ Closing fragment
09-07 05:10	40m	- / -12	DL3WA	-11 / -	4	✓ Closing fragment
09-07 05:10	40m	- / -	IN3LTL	-8 / -	4	Partial capture
09-07 05:05	40m	- / -	DL4ABN	+8 / -	2	Partial capture
09-07 04:55	40m	- / -14	YT3MD	+5 / -	5	✓ Closing fragment
09-07 04:50	40m	- / -18	SQ6WA	-19 / -	3	Partial capture
09-07 04:46	40m	- / -	KB3Z	-12 / -	2	Partial capture
09-07 04:43	40m	- / -10	DJ5CL	+7 / -	5	✓ Closing fragment
09-07 04:39	40m	- / -	DH3KR	-12 / -	6	Partial capture
09-07 04:37	40m	- / -	DG3BZ	-1 / -	2	Partial capture
09-07 04:35	40m	- / -21	LZ2XF	-2 / -	4	✓ Closing fragment
09-07 04:31	40m	- / -	DJ2DL	-10 / -	2	Partial capture
09-07 04:23	40m	- / -	SM7TZK	-2 / -	2	Partial capture
09-07 04:17	40m	-16 / -	E79KO	+2 / -21	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
030145 -22 1914  KS1WK W2GMW R-19
040315 -20 1915  KS1WK N1MRE FN44
051115  -6 1914  KS1WK F4UJU JN06 (x4)
051845  -4 1288  KS1WK F6FTB JN27 (x8)
012030  -6  643  KS1WK MI0NWA IO64

40m

UTC    dB Audio  Message
003600 -11  589  KS1WK KB2KBC FN20 (x2)
003645 -24 1953  KB2KBC KS1WK RR73
003715 -24 1954  CQ KS1WK FN31 (x2)
003815 -21 1953  KF9FJ KS1WK -07 (x2)
004330  +1 2106  KS1WK 5B4AMH -15 (x3)
004445 -24 1953  CQ KS1WK FN31 (x2)
005500 -12  633  KS1WK R6ZEJ KN98
005515 -21 1953  CQ KS1WK FN31
005530  -6  632  KS1WK R6ZEJ KN98

20m

UTC    dB Audio  Message
091945 -21 2369  DL8RBL KS1WK R-11
150930 -10 1896  KS1WK M9LCB IO93 (x2)
155400  -9 1897  KS1WK DH5NC JN49 (x3)
181700 -13 2619  KS1WK M8GGQ IO94 (x3)
191600  -3 2558  KS1WK IN3EJX JN56 (x3)
194430  -1  966  KS1WK F4JZW JN08 (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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