UB3BDJ — 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 UB3BDJ, decoded by SO8OO in southeastern Poland. 344 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.

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 344 FT8 messages attributed to UB3BDJ as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (41%), followed by 40 m (36%) and 80 m (22%). Most decodes (71%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13.4 dB.

Overview

344
Messages attributed
38
UTC dates decoded
89
Active 15-min windows
-13.4 dB
Estimated median S/N

Bands

80m · 75 60m · 142 40m · 125 20m · 1 10m · 1
First attributed message: 2026-06-06
Last attributed message: 2026-10-06 04:52 UTC

Observed FT8 message patterns

Attributed sample
344 messages
Active dates
38 UTC dates
Estimated median S/N
-13.4 dB
Estimated 10th-90th percentile
-19 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 122, moderate (-15 to -9 dB) 155, strong (≥ -8 dB) 67.

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 UB3BDJ 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 UB3BDJ

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 · 132 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-10-06 04:52 UTC

Other locator fields attributed to this token: KN64 (25).

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 UTCBandUB3BDJ S/NCounterpartCounterpart S/NMsgsCapture
10-06 04:45 40m -18 / - R4HGK - / - 2 Partial capture
10-06 04:22 40m - / -14 TA2VUZ -21 / - 3 Partial capture
10-05 20:03 60m -12 / -8 HA8BE -21 / -3 3 ✓ Full exchange observed
10-05 20:00 60m -11 / -6 9A7BB +5 / - 10 ✓ Closing observed
10-05 03:56 80m -17 / - R2WAF - / -9 4 ✓ Closing fragment
10-05 03:55 80m -24 / - RN2F - / - 2 ✓ Closing fragment
10-05 03:14 40m - / -7 IN3IBW -5 / - 2 Partial capture
10-05 03:12 40m - / +1 YO6LM -8 / - 2 ✓ Closing fragment
10-05 03:08 40m - / -1 LZ2II -7 / - 3 ✓ Closing fragment
10-04 19:26 80m -15 / -23 UC6D -4 / -8 4 ✓ Full exchange observed
10-03 20:08 80m - / - SP1MGM +4 / - 2 Partial capture
10-03 20:04 40m - / -14 SV8DCW -2 / - 4 Partial capture
10-03 20:02 40m - / - S55A -4 / - 2 ✓ Closing fragment
10-03 19:50 40m - / -5 R7CD -10 / - 2 ✓ Closing fragment
10-03 19:42 40m -15 / - HA1BF - / -5 2 ✓ Closing fragment
10-02 19:55 80m - / 0 RJ3T -22 / - 3 ✓ Closing fragment
10-02 19:55 80m - / - RX3ACO -5 / - 2 Partial capture
10-02 19:54 80m -8 / -5 RU3T +11 / -4 4 ✓ Full exchange observed
10-02 19:53 80m - / - DO2HC -7 / - 3 Partial capture
10-02 19:50 60m - / -9 EW1P -10 / - 2 Partial capture
10-02 19:50 60m - / - ON7KEI -12 / - 3 Partial capture
10-01 20:44 40m -12 / -7 RX6AOB -10 / -7 3 ✓ Full exchange observed
10-01 20:36 60m - / -15 EA1R -16 / - 7 Partial capture
10-01 20:36 60m -19 / -7 PC2J -10 / -12 5 ✓ Full exchange observed
09-29 19:51 60m - / - DL1IP -9 / - 5 Partial capture
09-28 19:55 80m - / - R2HB -13 / - 3 ✓ Closing fragment
09-28 19:54 80m -16 / -1 RN3AOE -12 / -5 4 ✓ Full exchange observed
09-28 19:51 60m -15 / 0 OM5JG 0 / -15 6 ✓ Full exchange observed
09-28 19:50 60m - / - ON1BD -10 / - 6 Partial capture
09-28 19:49 60m -18 / - SP3CUG -7 / -10 5 ✓ Full exchange observed
09-28 19:39 40m -8 / - JA8EPO - / - 2 Partial capture
09-27 17:59 40m - / - DL6UM +5 / - 2 Partial capture
09-27 17:56 40m -7 / -8 DK7UY +4 / -17 8 ✓ Full exchange observed
09-27 17:56 40m - / - RD3FY +3 / - 3 Partial capture
09-27 17:56 40m -10 / -8 UB4CGR -12 / -6 4 ✓ Full exchange observed
09-27 17:53 40m -16 / - IZ0ZIP +2 / -15 4 ✓ Closing observed
09-27 17:51 40m -18 / -1 R6DJR -13 / - 4 ✓ Closing observed
09-27 17:50 40m - / - DL6UM +5 / - 3 Partial capture
09-27 17:49 40m - / -10 IZ0ZIP 0 / - 2 Partial capture
09-27 17:49 40m - / - R2EC +6 / - 2 Partial capture
09-13 19:24 60m - / -16 OM5JG -1 / - 5 ✓ Closing fragment
09-13 19:19 60m -12 / - OM5JG - / - 2 Partial capture
09-13 19:18 60m - / +5 SV1EKI +3 / - 3 ✓ Closing fragment
09-13 19:16 60m -14 / -14 EW2RA +5 / - 4 ✓ Closing observed
09-13 06:04 40m - / -15 9A4ZM +6 / - 3 ✓ Closing fragment
09-12 04:40 40m -16 / - HG8LXL - / -10 2 ✓ Closing fragment
09-12 04:40 40m - / - 9A4ZM -2 / - 2 Partial capture
09-12 04:38 40m -12 / -2 DL8WEM +6 / - 4 ✓ Closing observed
09-12 04:35 40m - / -7 RA3LBW +10 / - 3 ✓ Closing fragment
09-12 03:53 40m -9 / - K3RIC - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
030915  -7 1184  UB3BDJ LZ2II -01 (x2)
031230  -6 2416  UB3BDJ YO6LM +01 (x2)
031400  -8 1303  UB3BDJ IN3IBW -07 (x2)
034100  -6  809  UB3BDJ SX2LGT +00
042245 -18 1834  UB3BDJ TA2VUZ -14 (x3)
044400 -24 1835  TA2VUZ UB3BDJ 73
044500 -20 1529  R4HGK UB3BDJ KO85 (x2)
044615 -14 1203  R7DX UB3BDJ KO85
045230 -23 1415  LZ1ZF UB3BDJ KO85
60m 
UTC    dB Audio  Message
195115 -17 1382  UB3BDJ DB5HA JO31
195145  -8 1458  UB3BDJ ON7KEI JO21
200030 -11 2266  9A7BB UB3BDJ KO85
200045  +4 2267  UB3BDJ 9A7BB -06 (x5)
200300 -21 1361  UB3BDJ HA8BE -08
200315 -11 1361  HA8BE UB3BDJ R-03
200315  +9 2267  UB3BDJ 9A7BB -06
200345 -13 1361  HA8BE UB3BDJ 73
200345  +3 2267  UB3BDJ 9A7BB -06 (x3)
80m 
UTC    dB Audio  Message
192230 -12 1762  UC6D UB3BDJ KO85 (x2)
192700  +0 1503  UB3BDJ UC6D R-23
192715 -17 1503  UC6D UB3BDJ RR73
192730  -8 1504  UB3BDJ UC6D 73
192845  -5 1502  CQ UB3BDJ KO85
035215  -9  271  IT9JNR UB3BDJ KO85
035530 -24 2369  RN2F UB3BDJ KO85 (x2)
035645 -18 2204  R2WAF UB3BDJ KO85 (x4)
195700 -10  754  R2BPS UB3BDJ R+11
195815 -12 1891  RU3RA UB3BDJ KO85
20m 
UTC    dB Audio  Message
063900  +1 1434  YU1ZZ UB3BDJ KO85
10m 
UTC    dB Audio  Message
152200  -6 1771  UB3BDJ R7DX -07 (x3)

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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