UT3UW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KO50

Receiver-side FT8 activity involving UT3UW, decoded by SO8OO in southeastern Poland. 1,434 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 54 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-06.

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 1,434 FT8 messages attributed to UT3UW as the transmitting token by decoded message structure across 54 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (53%), followed by 20 m (41%) and 80 m (3%). Most decodes (50%) 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 -7 dB.

Overview

1,434
Messages attributed
54
UTC dates decoded
194
Active 15-min windows
-7 dB
Estimated median S/N

Bands

80m · 49 40m · 758 20m · 590 10m · 37
First attributed message: 2026-06-12
Last attributed message: 2026-09-06 23:28 UTC

Observed FT8 message patterns

Attributed sample
1,434 messages
Active dates
54 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-15 to +2.3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 131, moderate (-15 to -9 dB) 487, strong (≥ -8 dB) 816.

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 UT3UW 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 UT3UW

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
KO50 · 1,009 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
658 km (approx.)
Last such locator decoded
2026-09-06 23:28 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 UTCBandUT3UW S/NCounterpartCounterpart S/NMsgsCapture
09-08 03:55 40m - / -24 W4PSK -14 / - 2 Partial capture
09-06 23:26 40m -10 / - KJ2AM - / - 4 Partial capture
09-06 23:21 40m -9 / -8 VE1RSM -11 / -8 9 Partial capture
09-06 23:19 40m -9 / - M7HQE - / - 5 Partial capture
09-06 23:17 40m -12 / - KY2J - / - 2 Partial capture
09-06 23:14 40m -8 / -5 EA3LF -2 / -6 5 ✓ Full exchange observed
09-06 23:14 40m -8 / - DL9KM - / +1 2 ✓ Closing fragment
09-06 23:12 40m -12 / -18 N1NRL -20 / - 2 ✓ Closing observed
09-05 22:12 40m - / -4 DD8HG -10 / - 5 ✓ Closing fragment
09-05 22:08 40m - / -12 MI5ERE -2 / - 5 ✓ Closing fragment
09-05 22:08 40m - / - TA3NK -6 / - 2 Partial capture
09-05 22:08 40m - / - RZ4FWA -18 / - 2 Partial capture
09-05 18:07 40m +12 / -7 SP7LPF -2 / -3 4 ✓ Full exchange observed
08-29 06:08 20m -14 / - <...> - / - 4 Partial capture
08-28 21:31 20m - / -3 AA3B +10 / - 2 ✓ Closing fragment
08-28 21:23 20m - / - LU8VLE -18 / - 2 ✓ Closing fragment
08-27 20:33 40m +8 / 0 DK9RC -11 / -7 7 ✓ Full exchange observed
08-27 20:32 40m +6 / - SV9MBH - / -15 4 Partial capture
08-27 20:28 40m +4 / - EA3ISZ - / -20 4 Partial capture
08-27 20:24 40m - / - DK9RC -8 / - 2 Partial capture
08-27 20:24 40m +4 / - II7MGBT - / - 5 Partial capture
08-27 20:20 40m +3 / -18 HB9UQF -14 / -15 10 ✓ Full exchange observed
08-27 20:18 40m +2 / -2 DL4NWM -1 / -3 6 ✓ Full exchange observed
08-27 20:14 40m +5 / - US3LX -10 / -1 4 ✓ Closing observed
08-27 20:14 40m +2 / -17 BA5AN -13 / -11 6 ✓ Full exchange observed
08-27 20:10 40m +7 / -8 9A3AUH -6 / -2 7 ✓ Full exchange observed
08-27 20:06 40m +4 / - OV5SP - / -12 2 ✓ Closing fragment
08-27 20:04 40m +2 / -10 DJ1TU +1 / -1 11 ✓ Full exchange observed
08-27 20:02 40m +6 / - II7MGBT - / - 3 Partial capture
08-27 20:02 40m 0 / -12 MM0GHM -9 / -11 6 ✓ Full exchange observed
08-27 19:59 40m +3 / - JA7FLK - / - 5 Partial capture
08-27 19:56 40m +10 / -5 ON6DL -7 / -6 5 ✓ Full exchange observed
08-27 19:55 40m +1 / -6 EI8GS 0 / -9 5 ✓ Full exchange observed
08-27 19:11 20m - / - R4FDK +1 / - 7 Partial capture
08-27 19:10 20m - / -5 PA0ARR 0 / - 4 Partial capture
08-27 19:06 20m -4 / - DG4MD - / -5 2 ✓ Closing fragment
08-27 19:00 20m - / -8 PD2WL 0 / - 10 ✓ Closing fragment
08-25 21:52 20m - / -14 WA4FL -21 / - 3 ✓ Closing fragment
08-25 05:28 20m - / -2 R4FDW -8 / - 6 Partial capture
08-25 05:27 20m - / +1 RN6MA +8 / - 3 Partial capture
08-25 05:23 20m - / -12 WB8YJF -6 / - 2 ✓ Closing fragment
08-25 05:10 20m - / -9 PH7GD +2 / - 4 ✓ Closing fragment
08-25 04:44 20m - / -14 CE1KR +1 / - 2 ✓ Closing fragment
08-25 04:07 20m - / -13 OD5KU +3 / - 4 ✓ Closing fragment
08-24 20:48 20m -14 / - K0BFG - / - 2 Partial capture
08-24 20:45 20m -11 / - BA4VDC - / -12 3 ✓ Closing fragment
08-24 19:56 20m - / -8 JE1FQV +4 / - 2 ✓ Closing fragment
08-24 19:46 20m - / -14 EA5OL 0 / - 5 ✓ Closing fragment
08-24 19:02 20m - / - RZ4FWA -4 / - 2 Partial capture
08-24 17:42 20m - / - LY1NM +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
232230 -11 1009  VE1RSM UT3UW KO50 (x2)
232315 -11  714  UT3UW VE1RSM -08
232330  -8 1009  VE1RSM UT3UW R-08 (x4)
232600  -7 1009  KJ2AM UT3UW KO50 (x4)
232800  -7 1009  CQ UT3UW KO50 (x2)
035500 -14 1657  UT3UW W4PSK -24 (x2)
10m 
UTC    dB Audio  Message
144800  -9 2108  UT3UW IK1RQX JN44
144830  -9 1680  UT3UW PD4DX JO33
144830 -10 2108  UT3UW IK1RQX JN44
145330 -11 1680  UT3UW PD4DX JO33 (x5)
163830 -15 1784  UT3UW PE9JAN R-09 (x2)
093630  -4 2233  UT3UW EA3AKY -12 (x3)
090430  +1 1178  UT3UW IK2GAU +02
123015 -23 1857  UT3UW YC2OEI 73
20m 
UTC    dB Audio  Message
191315  +7 1531  UT3UW R4FDK LO23 (x2)
191345  +1 1281  UT3UW PA0ARR -03
191415  -1 1531  UT3UW R4FDK LO23
185815 -11 1196  K1CXW UT3UW KO50
190030  -3 1195  UT3UW I3QDK JN65
212345 -18  962  UT3UW LU8VLE RR73 (x2)
213130  +7  655  UT3UW AA3B -03 (x2)
060400  +6 2865  UT3UW OH0/ES2TT -09
060815 -15 1013  <...> UT3UW KO50 (x4)
80m 
UTC    dB Audio  Message
011145 -16 1025  UT3UW HA0AA +00
011200  -1  844  HA0AA UT3UW R-05 (x2)
011330  -4  844  CQ UT3UW KO50 (x2)
011500  -6  844  EA8AR UT3UW -13
011515 -14 1751  UT3UW EA8AR R-15
011530 -10  844  EA8AR UT3UW RR73
011545 -15 1751  UT3UW EA8AR 73
011630  -5  844  VO1OP UT3UW KO50 (x6)

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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