W9KXI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN12

Receiver-side FT8 activity involving W9KXI, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-08 and 2026-09-10.

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 26 FT8 messages attributed to W9KXI 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 (100%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

40m · 26

First attributed message: 2026-09-08
Last attributed message: 2026-09-10 02:13 UTC

Observed FT8 message patterns

Attributed sample: 26 messages
Active dates: 2 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -22 to -13 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 0.

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 W9KXI in decoded directed-looking exchanges:

A61DD · United Arab Emirates A61FJ · United Arab Emirates PW8BR · Brazil SP5LST · Poland SV1MOZ · Greece T46W · Cuba V51PJ · Namibia W5MMW · United States AA3B · United States EC5M · Spain GM6URC · Scotland SM6MUY · Sweden

Most frequent locator attributed to W9KXI

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: FN12 · 10 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,073 km (approx.)
Last such locator decoded: 2026-09-10 02:10 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	W9KXI S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 02:16	40m	- / -	LZ3RG	-1 / -	5	Partial capture
09-08 02:02	40m	- / +4	KS4OT	-11 / -	2	Partial capture
09-08 01:55	40m	- / -	UR4QWW	-21 / -	5	Partial capture
09-08 01:54	40m	- / -15	SV1MOZ	+7 / -	3	✓ Closing fragment
09-08 01:52	40m	-14 / -	V51PJ	- / -15	4	✓ Closing fragment
09-08 01:47	40m	-14 / -14	A61DD	-10 / -16	15	✓ Full exchange observed
09-08 01:41	40m	-16 / -	W5MMW	- / -	2	✓ Closing fragment
09-08 01:38	40m	-19 / -	PW8BR	- / -5	2	✓ Closing fragment
09-05 00:22	80m	- / -14	SM6MUY	+20 / -	2	✓ Closing fragment
08-31 01:54	80m	- / -15	EC5M	0 / -	2	✓ Closing fragment
08-31 01:53	80m	- / -25	SP6JIU	+26 / -	2	✓ Closing fragment
08-31 01:50	80m	- / -15	GM6URC	-5 / -	3	✓ Closing fragment
08-31 01:46	80m	- / -	OZ6FH	+7 / -	3	Partial capture
08-29 00:31	80m	- / -	M7XRI	-16 / -	2	Partial capture
08-29 00:29	80m	- / -	AA3B	-14 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
015815 -12 1632  W9KXI UR4QWW KN77
020200 -10 1807  W9KXI KS4OT EM83 (x2)
020500 -17 1871  W9KXI A61FJ RR73
021600  -3  629  W9KXI LZ3RG KN12 (x2)
021700 -20 1176  W9KXI UB4FGK LO33
021700  -1  629  W9KXI LZ3RG KN12 (x3)
020945 -24 1753  CQ W9KXI FN12                         a1 (x2)
021145 -23 1753  T46W W9KXI RR73
021315 -22 1753  KN4RNO W9KXI R-04
022200 -14  995  W9KXI IH9/IT9JUI +07

80m

UTC    dB Audio  Message
003215 -18 1652  W9KXI M7XRI JO00
014645  +7 1991  W9KXI OZ6FH JO47
014645 +10 1820  W9KXI F4UJU JN06
014715  +6 1992  W9KXI OZ6FH JO47 (x2)
015045  -4 1315  W9KXI GM6URC IO75 (x3)
015300 +27 2905  W9KXI SP6JIU -25 (x2)
015445  +1  595  W9KXI EC5M -15 (x2)
002230 +18 2765  W9KXI SM6MUY -14 (x2)
002615  +1 2391  W9KXI TF4M -07

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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