S56KR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovenia Most frequent locator attributed to this token: JN76

Receiver-side FT8 activity involving S56KR, decoded by SO8OO in southeastern Poland. 234 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-20.

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 234 FT8 messages attributed to S56KR as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (82%), followed by 80 m (10%) and 20 m (8%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.

Overview

234

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 23 40m · 192 20m · 19

First attributed message: 2026-06-12
Last attributed message: 2026-09-20 19:36 UTC

Observed FT8 message patterns

Attributed sample: 234 messages
Active dates: 7 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -14 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 77, strong (≥ -8 dB) 143.

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 S56KR in decoded directed-looking exchanges:

DA0WWA · Fed. Rep. of Germany ×2 SN4WWA · Poland ×2 CR2WWA · Azores EH5WWA · Spain 9A4ZM · Croatia II0WWA · Italy II1WWA · Italy II2WWA · Italy II5WWA · Italy II6WWA · Italy IZ1HJU · Italy PA3CPS · Netherlands

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 S56KR

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: JN76 · 158 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 631 km (approx.)
Last such locator decoded: 2026-09-20 18:45 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	S56KR S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 19:37	80m	- / -	9A4ZM	+13 / -	2	Partial capture
09-20 18:47	80m	- / -	DO9BAU	+9 / -	12	Partial capture
09-20 18:46	80m	+12 / +10	II8IHBC	+5 / +1	2	Partial capture
09-20 18:44	80m	+2 / -	SQ100PKP	- / +2	3	Partial capture
09-20 09:04	40m	-6 / -	II4IANT	- / -	8	Partial capture
09-20 07:56	40m	-1 / -	II9IAGM	- / -	6	Partial capture
09-20 07:51	40m	-3 / -	II9IAGM	- / -	2	Partial capture
09-20 07:46	40m	-3 / -	II9IAGM	- / -	3	Partial capture
09-20 07:45	40m	-2 / -	PA3CPS	- / -7	2	✓ Closing fragment
09-20 07:43	40m	-2 / -	II9IAGM	- / -6	2	Partial capture
09-20 07:30	40m	-2 / -	DF9HT/P	- / -10	14	Partial capture
07-04 20:13	40m	-15 / -15	II3WWA	-9 / -2	5	Partial capture
07-04 20:06	40m	-14 / -	II3WWA	- / -	7	Partial capture
07-04 19:59	40m	-12 / -	II1WWA	- / -14	3	✓ Closing fragment
07-04 19:57	40m	-11 / -	II3WWA	- / -	3	Partial capture
07-04 19:50	40m	-14 / -8	II2WWA	-13 / -5	5	✓ Full exchange observed
07-04 19:48	40m	-13 / -	II5WWA	- / -4	3	✓ Closing fragment
07-04 19:38	20m	-13 / -	II9WWA	- / -	6	Partial capture
07-03 19:32	80m	-1 / -	II8WWA	- / -	2	Partial capture
07-03 19:30	40m	- / -	RL3K	-17 / -	2	Partial capture
07-03 19:30	80m	-3 / -	II3WWA	-23 / +1	10	Partial capture
07-03 19:25	40m	-8 / +3	DA0WWA	-10 / -	3	✓ Closing observed
07-03 19:20	40m	-12 / -	9A4ZM	-7 / -5	4	✓ Full exchange observed
07-03 19:18	40m	-14 / -1	SN4WWA	-13 / -	5	✓ Closing observed
07-03 19:06	40m	-3 / -	DA0WWA	- / -	4	Partial capture
07-03 18:58	40m	-5 / -	SN3WWA	- / -	3	Partial capture
07-03 18:55	40m	-8 / -	SN4WWA	- / -	4	Partial capture
07-03 18:51	40m	-6 / -	II2WWA	- / -	4	Partial capture
07-03 18:46	40m	-4 / -	II0WWA	- / -	3	Partial capture
07-03 18:43	40m	-15 / -	8A1WWA	- / -	5	Partial capture
07-03 18:41	40m	+2 / -	II0WWA	- / -	5	Partial capture
07-03 18:37	40m	-11 / -	II6WWA	- / -	3	✓ Closing fragment
07-03 18:24	40m	-1 / -	OK2USB	- / -	2	Partial capture
07-03 18:22	40m	-16 / -	8A1WWA	- / -	2	Partial capture
07-03 18:20	40m	- / -	F5RRS	-20 / -	2	Partial capture
07-03 18:13	40m	-9 / -	II3WWA	- / -	2	Partial capture
07-03 18:09	40m	-13 / -18	TM2WWA	-10 / -12	2	Partial capture
07-03 18:08	40m	-8 / -	GB2WWA	- / -12	2	Partial capture
07-01 20:05	40m	-2 / -	LA6LLA	- / -	7	Partial capture
07-01 19:55	40m	-8 / -	IZ1HJU	- / -10	5	✓ Closing fragment
07-01 19:52	40m	-4 / -11	TM8WWA	-4 / -9	7	✓ Full exchange observed
07-01 19:23	80m	- / -10	SN3WWA	-12 / -	2	Partial capture
06-30 21:04	80m	- / -	UA4FKT	-10 / -	2	Partial capture
06-29 21:27	20m	-4 / -13	EH5WWA	+2 / +5	10	✓ Full exchange observed
06-29 21:23	20m	-11 / -	BA7CK	- / -	4	Partial capture
06-29 21:22	20m	-11 / -10	CR2WWA	-18 / -9	4	✓ Full exchange observed
06-29 21:18	40m	-6 / -	BI4SSB	- / -	5	Partial capture
06-29 21:13	40m	-13 / -	US5ZCO	- / -5	7	✓ Closing fragment
06-29 21:11	40m	- / -	R2EA/P	-8 / -	4	Partial capture
06-29 21:10	40m	- / -2	DA0WWA	-10 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
184730 +12 2102  S56KR DO9BAU JO62
184745 +12 1503  II8IHBC S56KR R+01
184800 +11 2102  S56KR DO9BAU JO62 (x10)
193615  -9 1503  SQ100PKP S56KR R-11
193700 +13 1498  S56KR 9A4ZM JN86 (x2)

40m

UTC    dB Audio  Message
075815  -2 1538  II9IAGM S56KR JN76 (x3)
084730  -8 1540  RA4ADF/P S56KR JN76
084745 -13 2363  S56KR II4IANT -05
084800 -10 1539  SV8/SV1TQB S56KR R+01
090145  -9 1538  II4IANT S56KR JN76 (x9)

20m

UTC    dB Audio  Message
212845  -4  815  EH5WWA S56KR R+05
212900  +3  815  S56KR EH5WWA -13
212915  -9  815  EH5WWA S56KR R+07 (x3)
213100  +2  815  S56KR EH5WWA RR73
213115  -2  815  EH5WWA S56KR R+07
213230  +1  815  S56KR RR73; LZ4VR <...> -20
213300 -15 2496  S56KR GB2WWA +11
193815 -10 1573  II9WWA S56KR JN76 (x6)

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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