W3MTN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States

Receiver-side FT8 activity involving W3MTN, decoded by SO8OO in southeastern Poland. 3 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-22.

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 3 FT8 messages attributed to W3MTN 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

3
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-
S/N pattern not inferred

Bands

First attributed message: 2026-08-22
Last attributed message: 2026-08-22 23:17 UTC

Observed FT8 message patterns

Attributed sample
3 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).

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 UTCBandW3MTN S/NCounterpartCounterpart S/NMsgsCapture
08-28 17:30 20m - / -17 M8BJL +2 / - 3 ✓ Closing fragment
08-28 17:26 20m - / - 2E0LMA -6 / - 2 ✓ Closing fragment
08-22 23:16 20m -12 / - PE1EBT - / -15 3 ✓ Closing fragment
08-22 23:11 20m - / +7 W1E -10 / - 2 ✓ Closing fragment
08-22 22:38 20m - / - HB9RYB -2 / - 6 Partial capture
08-22 22:25 20m - / -11 G8KHF -12 / - 2 Partial capture
08-08 20:16 20m - / -3 DL3EBJ -16 / - 2 ✓ Closing fragment
08-05 23:00 20m - / -15 IW4BO -9 / - 3 ✓ Closing fragment
08-03 20:56 20m - / - IU3VHR -10 / - 2 Partial capture
07-31 22:56 20m - / -12 GM4HYG -4 / - 5 ✓ Closing fragment
07-31 22:45 20m - / -4 M0GQC -16 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
223830  +2 1027  W3MTN HB9RYB JN47 (x5)
231115 -10  847  W3MTN W1E +07 (x2)
231630 -11  446  PE1EBT W3MTN R-15 (x3)
172630  -7 1770  W3MTN 2E0LMA RR73 (x2)
173030  +5  884  W3MTN M8BJL -17 (x3)

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