UA3DNK — 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 UA3DNK, decoded by SO8OO in southeastern Poland. 203 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-09-12.

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 203 FT8 messages attributed to UA3DNK as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 20 m (26%) and 10 m (1%). Most decodes (98%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

203
Messages attributed
7
UTC dates decoded
23
Active 15-min windows
-14 dB
Estimated median S/N

Bands

40m · 147 20m · 53 10m · 3
First attributed message: 2026-07-21
Last attributed message: 2026-09-12 15:12 UTC

Observed FT8 message patterns

Attributed sample
203 messages
Active dates
7 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-23 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 87, moderate (-15 to -9 dB) 78, strong (≥ -8 dB) 38.

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 UA3DNK 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 UA3DNK

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 · 88 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-09-12 15:12 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 UTCBandUA3DNK S/NCounterpartCounterpart S/NMsgsCapture
09-12 15:10 40m - / - F1IQH -19 / - 3 Partial capture
09-12 15:07 40m - / -3 LB5WB -13 / - 2 ✓ Closing fragment
09-12 15:05 40m -10 / - UG4P - / -11 2 ✓ Closing fragment
09-12 15:02 40m -13 / -3 UB3PDB -13 / -8 5 ✓ Full exchange observed
09-11 16:41 40m -10 / -12 ON4ASV +7 / -8 5 ✓ Full exchange observed
09-11 16:35 40m -6 / - UB4HVA - / -1 2 ✓ Closing fragment
09-11 16:11 40m -8 / - IK1MJK/P - / -15 6 Partial capture
09-11 16:08 40m -12 / -8 SO100PKP -12 / -15 3 Partial capture
09-11 16:03 40m -12 / - SP100PKP - / -12 2 Partial capture
09-11 15:58 40m -13 / -16 RA3AJT +2 / -14 4 ✓ Full exchange observed
09-11 15:55 40m -9 / - R1TAX -20 / - 2 ✓ Closing observed
09-11 15:50 40m -13 / 0 RM4N -13 / +3 5 ✓ Full exchange observed
09-11 15:49 40m -10 / - RX9WM - / -4 2 ✓ Closing fragment
09-11 15:45 40m -9 / - UB8LAR - / -16 2 Partial capture
09-11 15:44 40m -10 / -10 EX7CQ 0 / -4 4 ✓ Full exchange observed
09-11 15:41 40m - / -14 DA0O -13 / - 3 ✓ Closing fragment
09-11 15:38 40m - / - RA3TVW -12 / - 3 ✓ Closing fragment
08-31 17:05 40m -8 / - UA9CR - / -6 2 ✓ Closing fragment
08-31 17:02 40m -4 / -8 UA9SY -15 / -6 10 ✓ Full exchange observed
08-31 17:01 40m -6 / +6 R8CKD -14 / -4 4 ✓ Full exchange observed
08-31 16:59 40m -4 / -1 HB10GBT -9 / -16 3 Partial capture
08-31 16:57 40m -6 / - JR1UTC - / -16 3 ✓ Closing fragment
08-31 16:56 40m -4 / - UD8F -10 / -11 3 ✓ Closing observed
08-31 07:32 20m -6 / - F5IXN +1 / -12 6 Partial capture
08-31 07:31 20m - / - F4BYA +1 / - 3 Partial capture
08-12 13:49 20m - / -6 DL1FLW -16 / - 3 ✓ Closing fragment
08-12 13:47 20m -20 / -6 R7OV -17 / -9 4 ✓ Full exchange observed
08-12 13:45 20m -24 / - GJ0KYZ - / -12 2 ✓ Closing fragment
08-12 12:54 10m - / -15 S55A -16 / - 2 ✓ Closing fragment
08-10 14:30 20m - / - IU2THY -8 / - 2 Partial capture
08-10 14:24 20m - / -12 F4LNM -24 / - 2 ✓ Closing fragment
07-24 15:56 40m -15 / - YE4FNN - / -11 2 ✓ Closing fragment
07-24 15:06 40m - / -4 S59A -2 / - 2 ✓ Closing fragment
07-23 18:16 40m -22 / -9 IU4DTV -14 / -15 4 ✓ Full exchange observed
07-23 18:15 40m -14 / -3 DK2CC -4 / -8 5 ✓ Full exchange observed
07-23 18:12 40m - / -10 R3LC -2 / - 2 ✓ Closing fragment
07-23 18:08 40m -19 / -7 YO4NT -4 / -6 4 ✓ Full exchange observed
07-23 18:05 40m -20 / - RW0UM - / -16 2 Partial capture
07-23 18:02 40m -19 / -11 RX7T -8 / -10 3 ✓ Full exchange observed
07-23 17:58 40m -22 / - JA3XNH - / -14 4 ✓ Closing fragment
07-23 17:48 40m -18 / - RM1B -21 / +3 3 ✓ Closing observed
07-23 16:52 20m -13 / - VU4R - / - 3 Partial capture
07-23 16:42 20m -15 / - VU4R - / - 4 Partial capture
07-23 16:37 20m -16 / - VU4R - / -13 4 Partial capture
07-23 16:32 20m -14 / - VU4R - / -17 4 Partial capture
07-21 17:54 20m - / +3 DK6WS -15 / - 2 Partial capture
07-21 17:52 20m - / -14 G4DBW -12 / - 2 ✓ Closing fragment
07-21 17:50 20m - / -6 RA6ZC -16 / - 2 ✓ Closing fragment
07-21 17:48 20m -15 / - BH5HIE - / -17 3 ✓ Closing fragment
07-21 17:40 20m -14 / -10 PA5TON -13 / - 4 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
150300 -13 1821  UB3PDB UA3DNK -08
150315 -13 1819  UA3DNK UB3PDB R-03
150330 -13 1821  UB3PDB UA3DNK RR73
150345 -15 1819  UA3DNK UB3PDB 73
150400 -14 1821  CQ UA3DNK KO85 (x2)
150500  -9 1317  UG4P UA3DNK R-11 (x2)
150745 -10 1200  UA3DNK LB5WB -03 (x2)
150900  -7 1200  CQ UA3DNK KO85
151015 -19 1200  UA3DNK F1IQH JN27 (x3)
151230 -11 1540  CQ UA3DNK KO85
20m 
UTC    dB Audio  Message
135115 -15 1896  UA3DNK DL1FLW 73
135830 -24 1852  JA3QLG UA3DNK -07
140100 -24 1812  UA4HBJ UA3DNK RR73
073130  -2 2912  UA3DNK F4BYA JN19
073145  -3 1586  CQ UA3DNK KO85
073200  -1 2236  UA3DNK IQ4JO JN63
073200  +1 1585  UA3DNK F5IXN JN23
073200  +0 2912  UA3DNK F4BYA JN19
073230  -1 1585  UA3DNK F5IXN JN23
073230  +6 2912  UA3DNK F4BYA JN19
073245  -7 1763  F5IXN UA3DNK -12
073300  +1 1585  UA3DNK F5IXN JN23
073315  -4 1763  F5IXN UA3DNK -17
073330  +4 1585  UA3DNK F5IXN JN23
073615  -2 1242  CQ UA3DNK KO85
10m 
UTC    dB Audio  Message
125115 -20 1406  UA3DNK RN6MA +14 (x2)
125845  -2 1379  UA3DNK E70SZ JN84 (x3)
133415 -24 1660  CN2DX UA3DNK -13
133615 -20 1661  CQ UA3DNK KO85
133645 -23 1661  RK3AW UA3DNK R-10
133830 -12 2583  UA3DNK IQ4JO JN63
125430 -19 1331  UA3DNK S55A R-15 (x2)

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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