W3L — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN20

Receiver-side FT8 activity involving W3L, decoded by SO8OO in southeastern Poland. 149 FT8 messages attributed to this token as transmitter, on 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-09-16 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 149 FT8 messages attributed to W3L 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 (100%). Most decodes (99%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (99%); the estimated median was -22 dB.

Overview

149

Messages attributed

UTC dates decoded

Active 15-min windows

-22 dB

Estimated median S/N

Bands

40m · 149

First attributed message: 2026-09-16
Last attributed message: 2026-09-20 04:01 UTC

Observed FT8 message patterns

Attributed sample: 149 messages
Active dates: 5 UTC dates
Estimated median S/N: -22 dB
Estimated 10th-90th percentile: -24 to -18 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 148, moderate (-15 to -9 dB) 1, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with W3L in decoded directed-looking exchanges:

R5DT · European Russia ×2 YO9IAB · Romania ×2 9Y4DG · Trinidad & Tobago CT2HEX · Portugal CT7AUT · Portugal DG4YT · Fed. Rep. of Germany DJ2DL · Fed. Rep. of Germany DK6XY · Fed. Rep. of Germany DL3OCF · Fed. Rep. of Germany DL3RL · Fed. Rep. of Germany DM5LA · Fed. Rep. of Germany E75FM · Bosnia-Herzegovina

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 W3L

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: FN20 · 67 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,111 km (approx.)
Last such locator decoded: 2026-09-20 03:46 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	W3L S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 04:32	40m	- / 0	DM5LA	+4 / -	3	✓ Closing fragment
09-20 04:29	40m	- / -8	F4PCM	-8 / -	3	✓ Closing fragment
09-20 04:29	40m	- / -	SV2BWY	-3 / -	3	Partial capture
09-20 04:27	40m	- / -	DL1SRS	-4 / -	2	Partial capture
09-20 04:25	40m	- / -	IZ1HJU	-8 / -	4	Partial capture
09-20 04:21	40m	- / -22	UR5ZHJ	+1 / -	2	Partial capture
09-20 04:14	40m	- / -6	GJ0KYZ	-3 / -	2	✓ Closing fragment
09-20 04:10	40m	- / -1	DJ2DL	-1 / -	2	✓ Closing fragment
09-20 04:07	40m	- / -	IQ6MC	+10 / -	2	Partial capture
09-20 04:05	40m	- / -7	DL6UJ	+2 / -	8	Partial capture
09-20 04:01	40m	- / -	EA5HM	-12 / -	4	Partial capture
09-20 04:01	40m	- / -	DL6UJ	0 / -	2	Partial capture
09-20 04:00	40m	-24 / -5	OS4K	-17 / -13	4	✓ Full exchange observed
09-20 03:58	40m	- / -17	IU0RBF	-6 / -	4	✓ Closing fragment
09-20 03:56	40m	- / -21	LA7DMA	+1 / -	3	Partial capture
09-20 03:55	40m	- / -	DL1UDO	-6 / -	2	Partial capture
09-20 03:47	40m	- / -	G1SID	-4 / -	4	Partial capture
09-20 03:46	40m	- / -15	R3ES	+1 / -	3	Partial capture
09-20 03:43	40m	-19 / -9	UR3HC	-2 / -	3	✓ Closing observed
09-20 03:35	40m	- / -	EA5HM	-10 / -	4	Partial capture
09-20 03:33	40m	- / 0	F4CQS	-10 / -	6	Partial capture
09-20 03:29	40m	-20 / -	NJ6K	- / -12	3	✓ Closing fragment
09-20 03:29	40m	- / -	EA5HM	-16 / -	2	Partial capture
09-20 03:27	40m	-19 / -18	UA3GIE	-3 / -14	7	✓ Full exchange observed
09-20 03:27	40m	-16 / -11	UC6D	+8 / -	2	✓ Closing observed
09-20 03:26	40m	- / -10	F4CQS	-14 / -	2	Partial capture
09-20 03:23	40m	-19 / -1	LX1JH	+4 / -	4	✓ Closing observed
09-20 03:21	40m	- / -9	F4CQS	-12 / -	2	Partial capture
09-20 03:21	40m	-21 / -	PE1NPS	+4 / -19	4	Partial capture
09-20 03:17	40m	-22 / -12	R5DT	+10 / -13	6	✓ Full exchange observed
09-20 03:16	40m	- / -	PE1NPS	+6 / -	2	Partial capture
09-20 03:16	40m	- / -	RG6ZF	-5 / -	4	Partial capture
09-20 03:15	40m	- / -	DL1UDO	-6 / -	2	Partial capture
09-20 03:14	40m	- / -	DG4SCG	0 / -	10	Partial capture
09-20 03:11	40m	- / -15	EI2IXB	-1 / -	6	Partial capture
09-20 03:05	40m	- / -	IU6UBV	-8 / -	2	Partial capture
09-20 03:03	40m	- / -	R4KB	-6 / -	2	Partial capture
09-20 03:02	40m	- / -	PE1NPS	+2 / -	3	Partial capture
09-20 02:33	40m	- / -9	ON1DGN	+6 / -	2	✓ Closing fragment
09-20 02:33	40m	- / -5	OS4K	-13 / -	3	Partial capture
09-20 02:28	40m	- / -	EA5HM	-20 / -	2	Partial capture
09-20 02:28	40m	- / -	RT6DU	-2 / -	6	Partial capture
09-20 02:27	40m	- / -13	F4CQS	-11 / -	3	Partial capture
09-20 02:17	40m	- / -12	ON1DGN	-16 / -	3	Partial capture
09-20 02:08	40m	- / -	MI7XHT	-9 / -	3	Partial capture
09-20 01:54	40m	- / -	RA6FC	+2 / -	4	Partial capture
09-20 01:52	40m	- / -	UA3GDJ	+5 / -	3	Partial capture
09-20 01:40	40m	- / -	IW2MYH	-3 / -	3	Partial capture
09-20 01:39	40m	- / -12	ON1DGN	+2 / -	4	Partial capture
09-20 01:33	40m	- / -5	OS4K	-12 / -	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
042600  -6 2391  W3L IZ1HJU JN44 (x2)
042730  -3 1815  W3L DL1SRS JN49 (x2)
042900  -5 2310  W3L SV2BWY KN10
042900 -10 1815  W3L F4PCM JN23
042930  -2 2310  W3L SV2BWY KN10
042930 -13 1814  W3L F4PCM R-08
042930  +6 2185  W3L DM5LA JN59
043000  -2 2310  W3L SV2BWY KN10
043000  -2 1814  W3L F4PCM 73
043200 -13 1224  W3L DL1OH JO31
043230  +5 2185  W3L DM5LA JN59 (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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