WB3AVN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM19

Receiver-side FT8 activity involving WB3AVN, decoded by SO8OO in southeastern Poland. 50 FT8 messages attributed to this token as transmitter, on 80m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-10 and 2026-09-19.

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 50 FT8 messages attributed to WB3AVN as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Most decodes (100%) fell within the six-hour window 23:00-05:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

80m · 50

First attributed message: 2026-07-10
Last attributed message: 2026-09-19 23:19 UTC

Observed FT8 message patterns

Attributed sample: 50 messages
Active dates: 5 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -24 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 12.

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 WB3AVN in decoded directed-looking exchanges:

SP6JIU · Poland ×2 EA4HPY · Spain DL1RNW · Fed. Rep. of Germany F5MYK · France F5RAV · France HA7TM · Hungary IK8HJC · Italy DO1ID · Fed. Rep. of Germany F4FPR · France F4NGK · France G4SRT · England HB9ALO · Switzerland

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 WB3AVN

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: FM19 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,310 km (approx.)
Last such locator decoded: 2026-09-19 23:19 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	WB3AVN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 23:08	80m	- / -11	G4SRT	-7 / -	3	✓ Closing fragment
09-19 23:06	80m	- / -5	PI4DX	+4 / -	2	✓ Closing fragment
09-15 00:19	80m	-24 / -16	UT7UA	+17 / -20	5	✓ Full exchange observed
09-15 00:17	80m	-24 / -16	OK1HEH	+7 / -19	7	✓ Full exchange observed
09-15 00:14	80m	-23 / -12	F4FPR	-9 / -13	9	✓ Full exchange observed
09-15 00:12	80m	-24 / -13	US2YW	+6 / -16	6	✓ Full exchange observed
09-15 00:05	80m	-1 / 0	SP6JIU	+20 / +1	5	✓ Full exchange observed
09-15 00:02	80m	-23 / -13	OK1HEH	+3 / -	5	Partial capture
09-14 23:43	160m	- / -10	EA4HPY	-14 / -	2	✓ Closing fragment
09-04 23:55	80m	- / -	G1VHD	-10 / -	2	Partial capture
09-04 23:49	80m	-24 / +2	TF4M	-2 / -	3	✓ Closing observed
09-03 04:59	60m	- / -14	HA7TM	+17 / -	3	✓ Closing fragment
09-03 04:57	60m	- / -9	IK8HJC	-6 / -	3	✓ Closing fragment
09-03 04:51	60m	- / +2	DL1RNW	+4 / -	11	✓ Closing fragment
09-03 04:51	60m	- / -2	F5RAV	-13 / -	3	✓ Closing fragment
09-03 04:50	60m	- / -1	F5MYK	-10 / -	2	✓ Closing fragment
08-28 04:38	80m	- / -	SP6FME	+10 / -	3	Partial capture
08-28 04:37	80m	- / -	DK5WL	-8 / -	2	Partial capture
08-28 04:35	80m	-16 / -12	HB9ALO	-10 / -11	10	✓ Full exchange observed
08-28 04:35	80m	- / -15	SV8CKM	-8 / -	4	✓ Closing fragment
08-28 04:34	80m	-17 / -	F4NGK	- / -8	2	✓ Closing fragment
08-28 04:34	80m	-12 / -	EA5HM	-20 / -8	2	Partial capture
08-28 04:33	80m	-14 / -13	OK1XV	+6 / -	9	✓ Closing observed
08-28 04:31	80m	-17 / -13	PA3KUS	-11 / -11	5	✓ Full exchange observed
08-28 04:30	80m	- / -	HA3HX	-2 / -	2	Partial capture
08-28 04:29	80m	-14 / -	MW7TTA	- / -17	2	✓ Closing fragment
08-17 00:08	80m	- / -	UT5ZC	0 / -	3	Partial capture
08-17 00:05	80m	- / -18	SP6JIU	+24 / -	2	✓ Closing fragment
08-13 22:56	40m	- / -	G5TV	-20 / -	2	Partial capture
07-10 01:39	80m	-10 / -	MM0KQC	-7 / -	3	✓ Closing observed
07-10 01:37	80m	-10 / -	PJ4NX	- / -12	2	✓ Closing fragment
07-10 01:37	80m	- / -	IW9FRA	-2 / -	7	Partial capture
07-10 01:36	80m	-15 / +4	HB9CXZ	+10 / +1	4	✓ Full exchange observed
07-10 01:34	80m	-12 / -	PJ4NX	- / -	2	Partial capture
07-10 01:30	80m	-4 / +4	DO1ID	+6 / -13	8	✓ Full exchange observed
07-10 01:27	80m	-8 / -6	LY7M	+14 / -6	9	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
001845 +11 1568  WB3AVN OK1HEH RR73
001900 -24 2004  OK1HEH WB3AVN 73
001915 +17 2690  WB3AVN UT7UA KO50
001930 -24 2004  UT7UA WB3AVN -20
001945 +16 2689  WB3AVN UT7UA R-16
002000 -24 2003  UT7UA WB3AVN RR73
002015 +17 2689  WB3AVN UT7UA 73
233130 -19 1237  5B4AMX WB3AVN FM19
230630  +0 2209  WB3AVN PI4DX -05 (x2)
230800  -7  604  WB3AVN G4SRT IO82 (x2)
230900  -1 1435  WB3AVN SM4AZQ JO69
230900  -8  603  WB3AVN G4SRT 73
231900 -24 1211  TF3VS WB3AVN FM19

160m

UTC    dB Audio  Message
233815 -22 1995  WB3AVN V26OC -19
234315 -13 1833  WB3AVN EA4HPY -10 (x2)

60m

UTC    dB Audio  Message
045345  +5  507  WB3AVN DL1RNW +02 (x6)
045715  -9 1223  WB3AVN IK8HJC JN70
045715  -9 1876  WB3AVN DL1RNW RR73
045745  -6 1223  WB3AVN IK8HJC R-09 (x2)
045930 +16  490  WB3AVN HA7TM -14 (x3)
050230 -19 1876  WB3AVN DL5ZA JO51
230515 -22 1869  WB3AVN D44TWO -14

40m

UTC    dB Audio  Message
225330 -18 1590  WB3AVN G5TV IO93 (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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