SN9AF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO90

Receiver-side FT8 activity involving SN9AF, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-06-23.

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 22 FT8 messages attributed to SN9AF as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 60 m (23%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

60m · 5 40m · 17

First attributed message: 2026-06-22
Last attributed message: 2026-06-23 16:07 UTC

Observed FT8 message patterns

Attributed sample: 22 messages
Active dates: 2 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -22 to +8 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 7.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SN9AF in decoded directed-looking exchanges:

5P1KZX · Denmark CR5VP · Portugal DN9CHV · Fed. Rep. of Germany DO9BAU · Fed. Rep. of Germany IZ3EAW · Italy LZ4VR · Bulgaria PA3GCU · Netherlands SV2AEL · Greece UR9QQ · Ukraine IQ0VT · Italy

Most frequent locator attributed to SN9AF

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: JO90 · 9 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 208 km (approx.)
Last such locator decoded: 2026-06-23 16:06 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	SN9AF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-12 21:44	10m	- / -	DO6KDS	-10 / -	2	Partial capture
08-12 13:34	10m	- / +5	PA3AGN	-14 / -	5	Partial capture
08-12 13:32	10m	- / +9	PA3GCU	-19 / -	4	✓ Closing fragment
08-12 13:32	10m	- / -5	IZ3EAW	-1 / -	4	✓ Closing fragment
08-12 13:31	10m	- / +2	DN9CHV	-16 / -	2	✓ Closing fragment
08-12 13:23	10m	- / -9	DO9BAU	-16 / -	3	✓ Closing fragment
08-11 08:09	10m	- / -	OD5JL	-24 / -	2	Partial capture
07-24 21:23	10m	- / -4	UR9QQ	-13 / -	3	✓ Closing fragment
07-11 08:16	10m	- / +5	LZ4VR	-14 / -	5	✓ Closing fragment
06-23 17:06	20m	- / +6	UA4FEN	+4 / -	3	Partial capture
06-23 16:05	40m	-22 / -	<...>	- / +3	3	Partial capture
06-23 15:41	40m	-18 / -	F6FHZ	- / -12	3	Partial capture
06-23 13:37	20m	- / -	F5IXN	-12 / -	4	Partial capture
06-23 04:38	40m	-12 / -	<...>	- / +6	2	Partial capture
06-23 04:36	40m	-13 / -	IQ0VT	- / -11	3	✓ Closing fragment
06-23 04:27	40m	-12 / -	IR0RPER	- / +3	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
133215  -2 1354  SN9AF IZ3EAW JN55
133245 -19 1778  SN9AF PA3GCU R+09
133245  +1 1354  SN9AF IZ3EAW JN55
133315 -19 1779  SN9AF PA3GCU R+09
133315  -4 1354  SN9AF IZ3EAW R-05
133345 -17 1779  SN9AF PA3GCU R+09
133345  +1 1354  SN9AF IZ3EAW 73
133415 -22 1779  SN9AF PA3GCU 73
133445 -13 1192  SN9AF PA3AGN JO22 (x5)
214430 -10 2048  SN9AF DO6KDS JO30 (x2)

20m

UTC    dB Audio  Message
133715 -12 1834  SN9AF F5IXN JN23 (x4)
170630  +5  999  SN9AF UA4FEN +06 (x3)

40m

UTC    dB Audio  Message
042715 -13  606  IR0RPER SN9AF JO90 (x2)
043130 -21 1687  IR7RMAT SN9AF R-07
043645 -12  862  IQ0VT SN9AF JO90 (x3)
043815 -12  779  <...> SN9AF JO90 (x2)
043930 -16 1234  SN9AF SP1EG +01
154100 -18 1190  F6FHZ SN9AF -12 (x3)
160545 -22 1536  <...> SN9AF JO90 (x3)

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