US5WCE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KN19

Receiver-side FT8 activity involving US5WCE, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-05 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 37 FT8 messages attributed to US5WCE as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.

Overview

37
Messages attributed
2
UTC dates decoded
7
Active 15-min windows
-16 dB
Estimated median S/N

Bands

40m · 37
First attributed message: 2026-09-05
Last attributed message: 2026-09-20 13:58 UTC

Observed FT8 message patterns

Attributed sample
37 messages
Active dates
2 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-21 to -10 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 3.

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 US5WCE in decoded directed-looking exchanges:

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 US5WCE

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
KN19 · 17 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
100 km (approx.)
Last such locator decoded
2026-09-20 13:58 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 UTCBandUS5WCE S/NCounterpartCounterpart S/NMsgsCapture
09-20 13:58 40m -15 / -6 DL9KM -5 / -7 9 Partial capture
09-20 11:41 40m - / - SP4H -7 / - 2 Partial capture
09-20 11:40 40m - / - SP9UPH -3 / - 3 Partial capture
09-20 11:39 40m -16 / 0 SP9WAZ +4 / -3 5 ✓ Full exchange observed
09-20 01:15 40m - / -6 RY3F 0 / - 2 Partial capture
09-20 01:13 40m - / -5 W1RQ -7 / - 3 Partial capture
09-20 01:09 40m - / -5 RY3F -3 / - 6 Partial capture
09-20 00:46 40m - / -3 IZ8PPI -24 / - 2 Partial capture
09-20 00:38 40m - / - PE1NPS +7 / - 3 Partial capture
09-20 00:37 40m - / -1 TA4SSK -16 / - 3 ✓ Closing fragment
09-20 00:37 40m - / -1 ON1DGN +2 / - 4 Partial capture
09-20 00:18 40m - / +8 OS4K -13 / - 2 ✓ Closing fragment
09-06 00:23 40m - / -6 PD0IFI 0 / - 3 ✓ Closing fragment
09-06 00:22 40m - / -12 EA1AOC -5 / - 3 ✓ Closing fragment
09-06 00:18 40m - / -15 SV9QWC -6 / - 2 Partial capture
09-05 17:37 40m -8 / -8 IW3SGT -14 / - 2 ✓ Closing observed
09-05 17:35 40m - / -20 US1MM -2 / - 3 ✓ Closing fragment
09-05 17:27 40m - / -16 OH7BDI -14 / - 2 Partial capture
09-05 17:21 40m -15 / - DG0OFT - / -17 3 ✓ Closing fragment
09-05 16:09 40m -10 / -13 DJ9KM -13 / - 5 ✓ Closing observed
09-05 16:09 40m - / 0 IW2CAK/2 -10 / - 2 Partial capture
09-05 16:06 40m - / - UR4LG -6 / - 2 Partial capture
09-05 16:01 40m -19 / - PA2RO - / -15 8 Partial capture
09-05 15:46 40m - / - PA2RO -8 / - 5 Partial capture
09-05 15:45 40m -15 / +6 DL6UM +5 / -12 3 ✓ Full exchange observed
09-05 15:42 40m -17 / -17 UT7NI -2 / -16 5 ✓ Full exchange observed
09-05 15:16 40m - / - OZ7SKB/P -6 / - 3 Partial capture
09-05 15:15 40m - / -2 UY5AX -4 / - 3 ✓ Closing fragment
09-05 15:11 40m - / +7 SP3JPC +7 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
114030  -2 2139  US5WCE SP9UPH JO90 (x2)
114130  -9 1641  US5WCE SP4H KO13 (x2)
135745 -21 1641  CQ US5WCE KN19 (x2)
135830  -8 1708  US5WCE DL9KM JN68
135845 -15 1641  DL9KM US5WCE -07
135900 -10 1708  US5WCE DL9KM R-06 (x7)

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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