UB3BDJ — 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 UB3BDJ, decoded by SO8OO in southeastern Poland. 487 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 59 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-05.

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 487 FT8 messages attributed to UB3BDJ as the transmitting token by decoded message structure across 59 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (37%), followed by 40 m (37%) and 80 m (26%). Most decodes (62%) 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 dB.

Overview

487
Messages attributed
59
UTC dates decoded
144
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-11-05 16:56 UTC

Observed FT8 message patterns

Attributed sample
487 messages
Active dates
59 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-20 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 169, moderate (-15 to -9 dB) 222, strong (≥ -8 dB) 96.

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.

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 · 203 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-11-05 16:53 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
11-06 01:36 40m - / -8 RW9ULK -13 / - 2 Partial capture
11-06 01:32 40m - / -10 PI4DX +1 / - 3 ✓ Closing fragment
11-06 01:27 40m - / -15 SV9QWC -12 / - 2 ✓ Closing fragment
11-05 16:55 60m - / - IT9VCE -8 / - 2 Partial capture
11-05 16:54 60m -13 / +4 OH6FSG -7 / -6 6 ✓ Full exchange observed
11-05 16:53 60m - / - DL5ZG -12 / - 2 Partial capture
11-05 16:53 60m -19 / -8 IK5ZPV -6 / -19 10 ✓ Full exchange observed
11-05 16:37 40m - / - DL1BBO -5 / - 2 Partial capture
11-05 16:19 80m - / -21 RV3YN -12 / - 4 Partial capture
11-05 16:07 80m - / -14 R1CBW -14 / - 7 Partial capture
11-05 05:33 40m - / -2 R2EA -9 / - 2 ✓ Closing fragment
11-05 05:29 40m -24 / -14 UA3GDJ -6 / +6 4 ✓ Full exchange observed
11-05 05:16 40m -22 / -15 YO1BRANCUSI +3 / +4 9 Partial capture
11-05 05:08 40m - / -10 R6DZR -8 / - 4 ✓ Closing fragment
11-04 05:58 40m - / -6 R3YAR 0 / - 2 ✓ Closing fragment
11-03 19:00 80m - / -6 R1CAT -6 / - 2 ✓ Closing fragment
11-03 18:53 60m -4 / -6 OH6FSG -4 / - 5 Partial capture
11-02 05:02 40m - / -16 F1PBZ -1 / - 5 Partial capture
11-02 04:58 40m -4 / -15 YO4NF +3 / - 4 ✓ Closing observed
11-02 04:55 40m -9 / - YO8XFU - / -11 3 ✓ Closing fragment
11-02 04:50 60m - / -11 F5RMK -9 / - 5 Partial capture
11-02 04:42 80m -12 / -13 UA3LRN -4 / -15 4 ✓ Full exchange observed
11-02 04:39 80m - / -23 UA3VBD -1 / - 3 ✓ Closing fragment
11-02 04:38 80m -11 / -10 R1AO +18 / -6 3 ✓ Full exchange observed
11-01 20:25 80m - / -7 OZ1ADL +2 / - 2 ✓ Closing fragment
11-01 20:15 60m - / -18 EC3A -8 / - 2 Partial capture
11-01 20:14 60m -12 / -13 G1XOW -12 / -20 4 ✓ Full exchange observed
11-01 04:23 40m - / -14 UA9MA -12 / - 2 ✓ Closing fragment
10-31 20:44 40m - / -14 A60FD/5 -10 / - 7 Partial capture
10-31 04:54 40m - / 0 R4LBP -10 / - 2 ✓ Closing fragment
10-31 04:22 80m - / +3 OH5KNL +9 / - 2 ✓ Closing fragment
10-31 04:20 80m -18 / - R3RB - / -2 2 Partial capture
10-31 04:13 80m - / -11 DD7EE -6 / - 2 ✓ Closing fragment
10-31 04:13 80m - / -15 DK7ZT -5 / - 5 ✓ Closing fragment
10-31 04:12 80m -13 / -9 RA4FP -8 / -3 5 ✓ Full exchange observed
10-30 21:20 60m -18 / -14 IN3IZQ -10 / - 6 ✓ Closing observed
10-30 21:13 60m -17 / - IK2EST -7 / - 5 ✓ Closing observed
10-30 21:06 60m - / -11 F5RMK -10 / - 2 ✓ Closing fragment
10-30 21:05 60m -9 / -14 ON4DS -6 / - 13 Partial capture
10-30 20:16 40m - / -11 EX7CQ -8 / - 2 ✓ Closing fragment
10-30 04:17 40m - / +1 SV1ENG -12 / - 2 ✓ Closing fragment
10-30 04:15 40m - / -8 R6FY -2 / - 2 ✓ Closing fragment
10-30 04:05 40m - / -7 SV5BYP -9 / - 5 ✓ Closing fragment
10-30 04:02 40m - / -8 RZ6L +16 / - 2 ✓ Closing fragment
10-30 03:56 60m - / -1 LZ2KV 0 / - 2 ✓ Closing fragment
10-29 19:47 60m - / -17 HG2DX -12 / - 2 Partial capture
10-28 04:49 80m - / -8 OH3DJP -12 / - 2 Partial capture
10-28 04:48 80m - / -21 EW8LL +2 / - 2 ✓ Closing fragment
10-28 04:37 80m - / -15 HA7TM +15 / - 4 ✓ Closing fragment
10-28 04:34 80m - / -11 PA3EVY +9 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
053030 -22 1138  OK1JPO UB3BDJ KO85
053345  -9  740  UB3BDJ R2EA -02 (x2)
053615  -9 1441  UB3BDJ R3LCG RR73
162430 -15  902  R2ZDO UB3BDJ KO85
163515  +2 1589  UB3BDJ DL7ACA JO40
163715  -7 2834  UB3BDJ DL1BBO JO43 (x2)
012745  -7 1916  UB3BDJ SV9QWC -15 (x2)
013215  +1 1143  UB3BDJ PI4DX -10 (x3)
013600 -12 2492  UB3BDJ RW9ULK -08 (x2)
60m
UTC    dB Audio  Message
165415 -15 1533  OH6FSG UB3BDJ -06
165430  -6 2366  UB3BDJ OH6FSG R+04
165430  -5 1318  UB3BDJ IK5ZPV JN53
165500  -7 2366  UB3BDJ OH6FSG R-02
165500  -7 1040  UB3BDJ IT9VCE JM77
165500  -7 1318  UB3BDJ IK5ZPV JN53
165515 -11 2367  OH6FSG UB3BDJ RR73
165530  -8 2366  UB3BDJ OH6FSG 73
165530 -10 1040  UB3BDJ IT9VCE JM77
165530  -4 1318  UB3BDJ IK5ZPV JN53
165545 -18 1319  IK5ZPV UB3BDJ -19
165600  -4 1318  UB3BDJ IK5ZPV R-08 (x2)
165645 -20 1318  IK5ZPV UB3BDJ RR73
165700  -9 1318  UB3BDJ IK5ZPV 73
80m
UTC    dB Audio  Message
185900 -13  941  UB3BDJ UA1AEL RR73
190000  -5 2097  UB3BDJ R1CAT -06 (x2)
160700 -15 1703  UB3BDJ R1CBW -14 (x7)
161015 -12 1669  UB3BDJ R4DB -17
161900  -5 2177  UB3BDJ RV3YN -21 (x4)
20m
UTC    dB Audio  Message
063900  +1 1434  YU1ZZ UB3BDJ 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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