W9WN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EN71

Receiver-side FT8 activity involving W9WN, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-30 and 2026-09-22.

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 10 FT8 messages attributed to W9WN as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

40m · 10

First attributed message: 2026-08-30
Last attributed message: 2026-09-22 01:02 UTC

Observed FT8 message patterns

Attributed sample: 10 messages
Active dates: 3 UTC dates
Estimated median S/N: -9 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 2.

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 W9WN in decoded directed-looking exchanges:

CT2HEX · Portugal IZ1XER · Italy NQ3N · United States PC2J · Netherlands WV2B · United States F4GTB · France IT9VCE · Sicily

Most frequent locator attributed to W9WN

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: EN71 · 9 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,607 km (approx.)
Last such locator decoded: 2026-09-22 01:02 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	W9WN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-22 01:03	40m	- / -	PD0DDA	-6 / -	7	Partial capture
09-22 01:01	40m	-9 / -	TN8GD	- / -	3	Partial capture
09-22 00:56	40m	-9 / -	A61DD	- / -	3	Partial capture
08-31 23:54	40m	- / -	G5TV	-8 / -	5	Partial capture
08-30 00:23	40m	- / -	S57MPU	-10 / -	2	Partial capture
08-29 01:53	80m	- / -	IK5CHL	-2 / -	2	Partial capture
08-29 01:48	80m	- / -14	F4GTB	+11 / -	3	✓ Closing fragment
08-29 01:47	80m	- / -11	IT9VCE	0 / -	3	✓ Closing fragment
08-29 01:36	40m	- / -19	PC2J	+11 / -	4	✓ Closing fragment
08-29 01:33	40m	- / -8	IZ1XER	-1 / -	2	✓ Closing fragment
08-29 01:32	40m	- / -	PC2J	+10 / -	2	Partial capture
08-29 01:24	40m	- / +7	WV2B	-11 / -	3	✓ Closing fragment
08-28 23:32	40m	- / -2	CT2HEX	-8 / -	2	✓ Closing fragment
08-16 01:23	40m	- / -	OO0O	-10 / -	2	Partial capture
08-16 01:19	40m	- / +6	NQ3N	-7 / -	2	✓ Closing fragment
08-16 01:19	40m	- / -19	RY3F	-2 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
012815 -13  853  CQ W9WN EN71
012845  -9  853  N5WXY W9WN -09
005630  -8  853  A61DD W9WN EN71 (x3)
010145 -10  853  TN8GD W9WN EN71 (x3)
010300  -8  853  W9WN PD0DDA JO22 (x7)

80m

UTC    dB Audio  Message
014700  -2  813  W9WN IT9VCE JM77 (x3)
014830 +11  818  W9WN F4GTB JN18 (x3)
015300  -5 2169  W9WN IK5CHL JN53 (x2)

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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