W3UNX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM29

Receiver-side FT8 activity involving W3UNX, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-25 and 2026-09-12.

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 W3UNX as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (90%), followed by 40 m (10%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.

Overview

10
Messages attributed
3
UTC dates decoded
3
Active 15-min windows
-8 dB
Estimated median S/N

Bands

40m · 1 20m · 9
First attributed message: 2026-08-25
Last attributed message: 2026-09-12 01:10 UTC

Observed FT8 message patterns

Attributed sample
10 messages
Active dates
3 UTC dates
Estimated median S/N
-8 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 2, 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 W3UNX in decoded directed-looking exchanges:

Most frequent locator attributed to W3UNX

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
FM29 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,189 km (approx.)
Last such locator decoded
2026-09-12 01:10 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 UTCBandW3UNX S/NCounterpartCounterpart S/NMsgsCapture
09-16 02:26 160m - / -16 IW0FFK +16 / - 2 ✓ Closing fragment
09-16 02:05 80m - / -19 PA4PA +3 / - 4 ✓ Closing fragment
09-08 22:18 40m - / -15 5Z4VJ -5 / - 4 Partial capture
09-08 02:10 80m - / -13 UX5UO +8 / - 2 ✓ Closing fragment
09-07 04:10 40m - / -12 GU4WRP -12 / - 5 ✓ Closing fragment
09-06 22:24 40m - / -16 D44TWO -13 / - 2 Partial capture
09-06 00:56 160m - / -15 GW8DX +7 / - 7 ✓ Closing fragment
09-06 00:51 160m - / -16 GW8DX +4 / - 4 Partial capture
08-28 20:47 20m - / -15 4Z5PT -10 / - 5 Partial capture
08-28 20:36 20m - / -19 DB9LG -6 / - 2 Partial capture
08-28 20:30 20m - / -19 DB9LG -11 / - 4 Partial capture
08-28 20:28 20m - / -14 Z62NS +9 / - 2 ✓ Closing fragment
08-27 23:10 20m -5 / -5 TF1SH -19 / - 4 Partial capture
08-25 02:23 20m -7 / - ZP5DVD - / - 4 Partial capture
08-25 02:19 20m -12 / - ZP5DVD - / - 2 Partial capture
08-22 01:20 20m - / -15 9K2GR -14 / - 3 ✓ Closing fragment
08-09 03:43 80m - / -14 CR7BRV -2 / - 2 ✓ Closing fragment
07-31 00:39 40m - / -3 G5TV -15 / - 7 ✓ Closing fragment
07-30 03:56 20m - / -7 YO9BLY -16 / - 2 Partial capture
07-30 03:36 20m - / -17 RU6UR -15 / - 4 Partial capture
07-19 23:01 20m - / -8 TK5K -3 / - 5 ✓ Closing fragment
07-16 00:50 40m - / 0 A61DD -14 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
005130  +3 2362  W3UNX GW8DX -16 (x11)
022615 +14  555  W3UNX IW0FFK -16 (x2)
80m 
UTC    dB Audio  Message
000300 -23 1415  W3UNX VP8A -12
034345  -2  750  W3UNX CR7BRV -14 (x2)
021000  +7 1327  W3UNX UX5UO -13 (x2)
020500  +5  216  W3UNX PA4PA -19 (x4)
40m 
UTC    dB Audio  Message
004430 -15 1386  W3UNX G5TV RR73
222400 -13  839  W3UNX D44TWO -16 (x2)
041000  -7 1658  W3UNX GU4WRP -12 (x5)
221815  -4 2535  W3UNX 5Z4VJ -15 (x5)
224545  -7 2933  W3UNX J38DX -13
011045 -16  942  HZ1TT W3UNX FM29
20m 
UTC    dB Audio  Message
231100  -4  529  TF1SH W3UNX FM29
231145 -19 2127  W3UNX TF1SH -05
202830 +11  729  W3UNX Z62NS -14 (x2)
203000 -13  534  W3UNX DB9LG JO40 (x6)
204730  -8 1022  W3UNX 4Z5PT -15 (x5)

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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