UB3WDA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving UB3WDA, decoded by SO8OO in southeastern Poland. 80 FT8 messages attributed to this token as transmitter, on 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-13.

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 80 FT8 messages attributed to UB3WDA as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). In this small sample, the estimated median decoder S/N was +3 dB; no usual signal pattern is inferred.

Overview

80
Messages attributed
1
UTC dates decoded
12
Active 15-min windows
+3 dB
Estimated median S/N

Bands

80m · 80
First attributed message: 2026-09-13
Last attributed message: 2026-09-13 22:42 UTC

Observed FT8 message patterns

Attributed sample
80 messages
Active dates
1 UTC dates
Estimated median S/N
+3 dB
Estimated 10th-90th percentile
-8 to +14 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 75.

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 UB3WDA in decoded directed-looking exchanges:

Most frequent locator attributed to UB3WDA

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
KO85 · 22 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-09-13 22:35 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 UTCBandUB3WDA S/NCounterpartCounterpart S/NMsgsCapture
09-13 22:43 80m - / - DO9BAU +7 / - 13 Partial capture
09-13 22:38 80m +12 / -14 EA1IOK -7 / -20 14 ✓ Full exchange observed
09-13 22:37 80m +18 / +3 RA6ZS +3 / +1 5 ✓ Full exchange observed
09-13 22:35 80m +10 / -15 F5NNN -8 / -16 7 ✓ Full exchange observed
09-13 22:30 80m - / - DO2XU -13 / - 5 Partial capture
09-13 22:29 80m - / - F5NNN -8 / - 5 Partial capture
09-13 22:29 80m - / -8 R4HHN -6 / - 5 Partial capture
09-13 22:26 80m +16 / +7 IK4TVP -4 / -15 8 ✓ Full exchange observed
09-13 22:24 80m +14 / -3 DL2FM -6 / -14 8 ✓ Full exchange observed
09-13 22:11 80m +9 / -3 DL0BRV -4 / -21 9 ✓ Full exchange observed
09-13 22:03 80m +5 / - UB0SMX/P - / - 3 Partial capture
09-13 21:46 80m - / - EA1IOK -7 / - 5 Partial capture
09-13 21:45 80m +11 / -15 F5RRS -1 / - 4 ✓ Closing observed
09-13 21:44 80m +7 / - R5BM 0 / +9 5 ✓ Closing observed
09-13 21:43 80m +10 / -13 DO8PAT -3 / -18 7 ✓ Full exchange observed
09-13 21:41 80m +5 / - IU1DXU -12 / -14 4 ✓ Full exchange observed
09-13 21:38 80m - / - EA1IOK -12 / - 5 Partial capture
09-13 21:37 80m 0 / +3 E70SZ +7 / - 3 ✓ Closing observed
09-13 21:18 80m -8 / -7 RA3RDN +8 / - 7 ✓ Closing observed
09-13 21:17 80m - / - UB3ANV -10 / - 2 ✓ Closing fragment
09-13 21:11 80m -7 / -6 HA1TJ 0 / - 4 ✓ Closing observed
09-13 21:06 80m -3 / - DK7ZT - / -6 2 ✓ Closing fragment
09-13 21:05 80m -6 / 0 RA3TVW -11 / -6 7 ✓ Full exchange observed
09-13 21:04 80m +2 / -16 R2BNC +4 / - 3 ✓ Full exchange observed
09-13 20:59 80m -2 / -6 RW3YS +7 / +5 4 ✓ Full exchange observed
09-13 20:57 80m -1 / -5 DK6WS +2 / - 5 Partial capture
09-13 20:51 80m - / - DO9BAU +7 / - 13 Partial capture
09-13 20:50 80m +5 / -11 RK3DSW -22 / - 2 ✓ Closing observed
09-13 20:48 80m +2 / - RN3YN - / -6 4 Partial capture
09-13 20:39 80m +8 / +7 R3PLN -7 / - 3 ✓ Full exchange observed
09-13 20:36 80m - / - 9A4ZM +4 / - 2 Partial capture
09-13 20:35 80m 0 / - R4OF - / -5 3 ✓ Closing fragment
09-13 20:33 80m +2 / - R4HHN - / - 2 Partial capture
09-13 20:21 80m -8 / - RA9SBN - / -18 4 ✓ Closing fragment
09-13 20:20 80m - / - DL9KM -15 / - 3 Partial capture
09-13 20:17 80m -5 / +10 UA3SCU -7 / +2 5 ✓ Full exchange observed
09-13 20:16 80m +1 / -4 RA4P -7 / -17 7 ✓ Full exchange observed
09-13 20:16 80m - / - DO9BAU +1 / - 13 Partial capture
09-13 20:12 80m -5 / -6 R3PLA -6 / - 5 ✓ Closing observed
09-13 20:10 80m - / - SV2AEL +10 / - 2 Partial capture
09-13 20:09 80m +4 / - RA4NCC - / -12 2 ✓ Closing fragment
09-13 20:09 80m - / -8 DK7ZT +2 / - 5 Partial capture
09-13 20:09 80m -1 / -6 RN6HK +7 / -1 7 ✓ Full exchange observed
09-13 20:08 80m - / - SV1EKI -7 / - 5 Partial capture
09-13 19:28 80m - / - R2HB -8 / - 2 Partial capture
09-13 19:27 80m - / -11 OK1VK +4 / - 2 Partial capture
09-13 19:26 80m -11 / - R3DMS -9 / +7 5 ✓ Closing observed
09-13 19:25 80m - / -3 R1TAX -12 / - 2 Partial capture
09-13 19:25 80m - / -20 RZ6CO -11 / - 5 Partial capture
09-13 19:25 80m -9 / -7 RU3T -15 / +2 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
224245 +11  698  EA1IOK UB3WDA RR73
224300  -3  700  UB3WDA EA1IOK 73
224300 +11 2502  UB3WDA DO9BAU JO62 (x13)
40m 
UTC    dB Audio  Message
053030 -16  841  UB3WDA RL3QGD KO91
053530 -10 1292  UB3WDA UB6OFG -09 (x10)

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