WW4F — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM17

Receiver-side FT8 activity involving WW4F, decoded by SO8OO in southeastern Poland. 1 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-19.

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 1 FT8 messages attributed to WW4F as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

1
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-
S/N pattern not inferred

Bands

First attributed message: 2026-06-19
Last attributed message: 2026-06-19 03:19 UTC

Observed FT8 message patterns

Attributed sample
1 messages
Active dates
1 UTC dates
S/N summary
Too few decodes
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

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 WW4F in decoded directed-looking exchanges:

Most frequent locator attributed to WW4F

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
FM17
SO8OO receiver locator
KN09VW
Locator-centre separation
7,470 km (approx.)
Last such locator decoded
2026-06-19 03:19 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 UTCBandWW4F S/NCounterpartCounterpart S/NMsgsCapture
09-28 00:57 40m - / - PD1DBL -6 / - 4 ✓ Closing fragment
09-28 00:12 40m - / -15 EC3A -12 / - 3 ✓ Closing fragment
09-28 00:11 40m - / -8 EA3HMM -4 / - 3 ✓ Closing fragment
09-27 23:45 40m - / -5 PI4DX +6 / - 2 ✓ Closing fragment
08-30 21:42 20m - / -15 OK2CNI -16 / - 6 Partial capture
07-26 00:42 40m - / -22 GI4SNA -9 / - 3 ✓ Closing fragment
07-26 00:21 40m - / -19 LZ3CB +2 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
004245  -6 1160  WW4F GI4SNA -22 (x3)
234545  +4 2100  WW4F PI4DX -05 (x2)
001115  -4  226  WW4F EA3HMM JN00 (x2)
001215 -12 1604  WW4F EC3A -15
001215  -6  226  WW4F EA3HMM 73
001245 -11 1604  WW4F EC3A -15 (x2)
005745  -5 1583  WW4F PD1DBL RR73 (x4)
20m
UTC    dB Audio  Message
001700  -7 2539  WW4F S58N JN76
214245 -16 2399  WW4F OK2CNI -15 (x6)

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