UB3DYV — 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 UB3DYV, decoded by SO8OO in southeastern Poland. 56 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-17.

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 56 FT8 messages attributed to UB3DYV as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (63%), followed by 20 m (30%) and 40 m (7%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (80%); the estimated median was -20 dB.

Overview

56
Messages attributed
5
UTC dates decoded
15
Active 15-min windows
-20 dB
Estimated median S/N

Bands

40m · 4 20m · 17 10m · 35
First attributed message: 2026-06-06
Last attributed message: 2026-09-17 18:15 UTC

Observed FT8 message patterns

Attributed sample
56 messages
Active dates
5 UTC dates
Estimated median S/N
-20 dB
Estimated 10th-90th percentile
-24 to -12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 45, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 1.

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 UB3DYV in decoded directed-looking exchanges:

Most frequent locator attributed to UB3DYV

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 · 21 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-09-17 18:15 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 UTCBandUB3DYV S/NCounterpartCounterpart S/NMsgsCapture
10-15 19:29 40m - / -25 PI4DX +6 / - 7 ✓ Closing fragment
10-15 19:26 40m - / -17 IK3MLF -3 / - 10 Partial capture
10-10 06:26 40m - / - R1AV -17 / - 3 Partial capture
10-10 06:24 40m - / -13 EU6KA -14 / - 4 ✓ Closing fragment
10-07 18:39 40m - / -20 OH5KNL +15 / - 3 Partial capture
09-30 20:26 80m - / -6 RX3ASQ +1 / - 2 ✓ Closing fragment
09-29 20:03 40m - / -16 LZ3CB +3 / - 3 ✓ Closing fragment
09-17 17:53 40m - / - UA3ON -8 / - 2 Partial capture
09-17 15:54 40m - / -16 HG0NPJ -2 / - 5 Partial capture
09-16 18:41 80m - / -13 R2BNC -4 / - 3 Partial capture
09-15 18:26 80m - / -19 UA3IDQ -15 / - 4 ✓ Closing fragment
09-15 18:09 80m - / -25 UA3IDQ -7 / - 4 Partial capture
09-15 18:08 80m - / -18 RA3FP +8 / - 2 ✓ Closing fragment
09-11 19:18 80m - / -17 R3VE -6 / - 2 ✓ Closing fragment
09-11 19:16 80m - / -20 R6ZS -6 / - 2 ✓ Closing fragment
09-11 19:11 80m - / -11 UA3GJM +10 / - 4 ✓ Closing fragment
09-10 19:48 80m - / -10 UD3T -18 / - 2 ✓ Closing fragment
09-10 19:34 80m - / -22 UA4FKT -6 / - 4 ✓ Closing fragment
09-10 19:32 80m - / -20 EW8CW -4 / - 5 ✓ Closing fragment
09-10 19:31 80m - / -15 RU4I -6 / - 4 ✓ Closing fragment
08-12 18:40 10m - / -2 DN9ZZ -14 / - 8 ✓ Closing fragment
08-09 19:12 10m - / -6 LZ1SAD -6 / - 2 ✓ Closing fragment
08-09 16:57 10m -24 / - ER5DX - / - 2 Partial capture
08-03 19:41 40m - / -22 UA4FKT -11 / - 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
170130 -24 1836  ER5DX UB3DYV R-15
171545 -24 1838  RN6MA UB3DYV 73
191215  -9  962  UB3DYV LZ1SAD -06 (x2)
183545  -1 2687  UB3DYV F1PBZ -14
184015 -15 1334  UB3DYV DN9ZZ -02 (x8)
074415 -21 2217  UB3DYV EP2AES +00
125530 -14 1102  UB3DYV CT2HEX IM58
40m 
UTC    dB Audio  Message
192715  -7  851  UB3DYV IK3MLF -17 (x4)
192915  +4 2066  UB3DYV PI4DX -25
192915  -7  851  UB3DYV IK3MLF -17
192945  +0 2066  UB3DYV PI4DX -25
192945  -3  851  UB3DYV IK3MLF -17
193015  +8 2066  UB3DYV PI4DX -25
193015  +1  851  UB3DYV IK3MLF -17
193045 +10 2066  UB3DYV PI4DX -25
193045  -1  850  UB3DYV IK3MLF -17
193115 +10 2066  UB3DYV PI4DX -25 (x3)
80m 
UTC    dB Audio  Message
180830 +10  328  UB3DYV RA3FP RR73
180930  -2  735  UB3DYV UA3IDQ -25 (x8)
184130  -3 1602  UB3DYV R2BNC -13 (x3)
202600  -2 1144  UB3DYV RX3ASQ -06 (x2)
205215  -1 1787  UB3DYV R7CD RR73

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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