S56KZ — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving S56KZ, decoded by SO8OO in southeastern Poland. 49 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-05 and 2026-08-30.

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 49 FT8 messages attributed to S56KZ as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (92%), followed by 20 m (8%). Several six-hour UTC windows tied for the largest share (63%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

40m · 45 20m · 4

First attributed message: 2026-07-05
Last attributed message: 2026-08-30 07:34 UTC

Observed FT8 message patterns

Attributed sample: 49 messages
Active dates: 5 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -24 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 19.

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 S56KZ in decoded directed-looking exchanges:

8Z1IT · Saudi Arabia A93MO · Bahrain RZ4AZ · European Russia TK5K · Corsica UN0GY · Kazakhstan DL9MY · Fed. Rep. of Germany IK0CHU · Italy KC2YYF · United States N2LD · United States SP7TF · Poland ZL3IO · New Zealand

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 S56KZ

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 · 34 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 631 km (approx.)
Last such locator decoded: 2026-08-30 07:34 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	S56KZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 07:30	20m	-8 / -	GU0SUP	- / -	2	Partial capture
08-26 18:23	40m	+2 / -	YD5BAG	- / -	3	Partial capture
08-26 18:20	40m	+9 / -	IK0CHU	+6 / -	8	✓ Full exchange observed
08-26 18:19	40m	+8 / 0	DL9MY	+4 / +2	6	✓ Full exchange observed
08-26 18:13	40m	+8 / -	YD5BAG	- / -	5	Partial capture
08-22 04:23	20m	-14 / -7	UN0GY	+6 / -	4	✓ Closing observed
08-21 03:59	20m	- / -9	UN0GY	-3 / -	3	Partial capture
08-02 04:01	20m	- / -17	RZ4AZ	-14 / -	3	✓ Closing fragment
07-20 03:25	20m	- / +6	TK5K	-3 / -	3	✓ Closing fragment
07-11 04:43	40m	-13 / -	ZL3IO	- / -13	6	✓ Closing fragment
07-11 04:27	40m	-15 / -	ZL3IO	- / -	2	Partial capture
07-11 04:21	40m	-13 / -	4A1CMX	- / -	5	Partial capture
07-11 04:13	40m	-16 / -	TJ1GD/P	- / -	4	Partial capture
07-11 04:11	40m	-12 / -	N2LD	- / -	2	✓ Closing fragment
07-11 04:06	40m	-22 / -	KC2YYF	- / 0	2	✓ Closing fragment
07-05 05:12	40m	-24 / -	ZL2CA	- / -	3	Partial capture
07-05 05:11	40m	-24 / -	SP7TF	- / -2	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
040130 -12 1577  S56KZ RZ4AZ R-17 (x2)
035945  -3 2182  S56KZ UN0GY -09 (x3)
042330 -14 1175  UN0GY S56KZ JN76
042345  +4 2375  S56KZ UN0GY -07 (x3)
044030 -11  542  S56KZ A93MO RR73
051830 -14 2421  S56KZ 8Z1IT RR73
052545 -20 2079  S56KZ ZL1RPC RF73
073045  -5 1579  GU0SUP S56KZ JN76 (x3)

40m

UTC    dB Audio  Message
182000  +3  372  S56KZ DL9MY R+00
182015  +4 2656  DL9MY S56KZ RR73
182030  +7 1328  S56KZ IK0CHU JN62
182030  +6  372  S56KZ DL9MY 73
182045  +7 2656  DL9MY S56KZ 73
182100  +8 1328  S56KZ IK0CHU JN62 (x2)
182145  +8 2656  IK0CHU S56KZ +24
182200  +9 1328  S56KZ IK0CHU R+26
182215 +12 2656  IK0CHU S56KZ RR73
182230  +5 1328  S56KZ IK0CHU 73
182245  +6 2656  IK0CHU S56KZ 73
182315  -1 2656  YD5BAG S56KZ JN76 (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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