UA3DNK — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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. 270 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-10-20.

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 270 FT8 messages attributed to UA3DNK as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (79%), followed by 20 m (20%) and 10 m (1%). Most decodes (99%) 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 -12 dB.

Overview

270
Messages attributed
9
UTC dates decoded
27
Active 15-min windows
-12 dB
Estimated median S/N

Bands

40m · 214 20m · 53 10m · 3
First attributed message: 2026-07-21
Last attributed message: 2026-10-20 16:29 UTC

Observed FT8 message patterns

Attributed sample
270 messages
Active dates
9 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-22 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 92, moderate (-15 to -9 dB) 100, strong (≥ -8 dB) 78.

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 · 122 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-10-20 16:29 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
11-03 16:26 160m - / -9 RZ3DC -19 / - 3 ✓ Closing fragment
11-03 13:11 80m - / -7 EW8R +10 / - 2 ✓ Closing fragment
10-21 11:48 10m - / -3 9K2GR -16 / - 2 ✓ Closing fragment
10-20 16:33 40m - / - RT2D -11 / - 2 Partial capture
10-20 16:31 40m - / - RZ6AKF +2 / - 2 Partial capture
10-20 16:26 40m -6 / - R9OON - / -15 2 ✓ Closing fragment
10-20 16:24 40m -7 / -7 IK4TVP -7 / -20 5 ✓ Full exchange observed
10-20 16:23 40m - / - M9XPN -11 / - 3 Partial capture
10-20 16:22 40m -5 / -2 R6LQU -13 / -6 3 Partial capture
10-20 16:20 40m -6 / -2 R1BDX -14 / -11 6 ✓ Full exchange observed
10-20 16:20 40m -7 / - R8ACF - / -20 2 ✓ Closing fragment
10-20 16:17 40m -2 / 0 R6YG -3 / -14 6 ✓ Full exchange observed
10-20 16:14 40m -3 / -10 S51UN -8 / - 3 ✓ Closing observed
10-20 16:14 40m - / - RM5F +1 / - 5 Partial capture
10-20 16:13 40m -4 / -1 UA9SAV -15 / -12 5 ✓ Full exchange observed
10-20 16:12 40m -9 / - R4PFY - / 0 2 ✓ Closing fragment
10-20 16:09 40m -10 / - R9FGJ - / -21 4 ✓ Closing fragment
10-16 16:48 40m - / - F6BHK -9 / - 3 Partial capture
10-16 16:46 40m -21 / -7 DB1RLP -8 / -16 4 ✓ Full exchange observed
10-16 16:45 40m -10 / - ON3MOH - / -20 2 ✓ Closing fragment
10-16 16:42 40m -16 / - BG2GWN - / -21 2 ✓ Closing fragment
10-16 16:37 40m -5 / -11 RA6MQ -4 / -10 3 Partial capture
10-16 16:37 40m -2 / - BG0FQU - / -18 3 ✓ Closing fragment
10-16 16:35 40m -11 / - OZ1IHB - / -20 3 ✓ Closing fragment
10-16 16:35 40m - / - RM5F -6 / - 2 Partial capture
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

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
162445 -24 1452  UA3DNK RJ3DC R-18
162615 -15 1330  UA3DNK RZ3DC KO85 (x3)
80m 
UTC    dB Audio  Message
131115  +9  805  UA3DNK EW8R -07 (x2)
10m 
UTC    dB Audio  Message
125430 -19 1331  UA3DNK S55A R-15 (x2)
114830 -16 2053  UA3DNK 9K2GR R-03 (x2)
40m 
UTC    dB Audio  Message
162500  -9 1334  UA3DNK IK4TVP RR73
162515  -5 1655  IK4TVP UA3DNK 73
162545  -4 1655  CQ UA3DNK KO85
162615  -5 1655  R9OON UA3DNK -15 (x2)
162715  -8 1655  CQ UA3DNK KO85 (x6)
163100  +2 1595  UA3DNK RZ6AKF KN95 (x2)
163300 -12 1553  UA3DNK RT2D KO85 (x2)
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

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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