UB3PDB — 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: KO93

Receiver-side FT8 activity involving UB3PDB, decoded by SO8OO in southeastern Poland. 387 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-17.

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 387 FT8 messages attributed to UB3PDB as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (47%), followed by 40 m (45%) and 10 m (7%). Most decodes (92%) 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 -10 dB.

Overview

387
Messages attributed
17
UTC dates decoded
64
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 182 40m · 175 20m · 1 10m · 29
First attributed message: 2026-06-06
Last attributed message: 2026-10-17 17:11 UTC

Observed FT8 message patterns

Attributed sample
387 messages
Active dates
17 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-18 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 77, moderate (-15 to -9 dB) 145, strong (≥ -8 dB) 165.

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 UB3PDB 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 UB3PDB

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
KO93 · 152 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,246 km (approx.)
Last such locator decoded
2026-10-08 17:02 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 UTCBandUB3PDB S/NCounterpartCounterpart S/NMsgsCapture
10-20 09:23 10m - / -23 CT2GQA -13 / - 3 ✓ Closing fragment
10-17 17:10 80m -13 / -6 RU3X 0 / - 4 ✓ Closing observed
10-17 17:07 80m - / +1 RA3WY +1 / - 3 ✓ Closing fragment
10-17 17:03 80m -20 / - RA9FDR - / -11 2 ✓ Closing fragment
10-17 17:03 80m - / -5 UA3NFI +5 / - 3 ✓ Closing fragment
10-17 16:59 80m - / -13 YO4NT -6 / - 2 ✓ Closing fragment
10-17 15:10 80m - / +3 RO5A -10 / - 2 ✓ Closing fragment
10-08 17:00 80m -10 / -9 E70SZ +3 / -15 5 ✓ Full exchange observed
10-08 16:57 80m -4 / - UN7LAN - / -15 2 Partial capture
10-08 16:55 80m -3 / +6 OH3MB +1 / - 4 ✓ Closing observed
10-08 16:54 80m -7 / - UA4QK - / -12 2 ✓ Closing fragment
10-08 16:53 80m -12 / - RA3DEP - / -10 2 ✓ Closing fragment
10-08 16:52 80m - / - E70SZ +9 / - 2 Partial capture
10-08 16:46 80m -6 / - RN4HAB -5 / -13 3 ✓ Closing observed
09-23 18:21 80m - / -4 RA1TR -12 / - 2 ✓ Closing fragment
09-23 18:19 80m - / - SM3ULU -14 / - 2 ✓ Closing fragment
09-21 17:56 80m - / - IK3TZB -12 / - 2 Partial capture
09-21 17:56 80m -2 / +3 RA6Z -12 / -11 5 ✓ Full exchange observed
09-21 17:56 80m +1 / - R2DQC - / -11 2 ✓ Closing fragment
09-21 17:54 80m - / -3 9A3EYA +14 / - 2 Partial capture
09-21 17:54 80m +4 / -13 PA4CC -6 / -21 4 ✓ Full exchange observed
09-21 17:50 80m -10 / - DO8JB - / - 2 Partial capture
09-21 17:46 80m +2 / -2 R3YAR +6 / 0 4 ✓ Full exchange observed
09-21 17:44 80m -11 / -10 OZ1KEF +6 / -10 5 ✓ Full exchange observed
09-21 17:41 80m -12 / -12 E79D +20 / -9 6 ✓ Full exchange observed
09-21 17:39 80m - / -3 RK4HS -15 / - 2 ✓ Closing fragment
09-21 17:33 80m +3 / - R3TD - / -15 2 ✓ Closing fragment
09-21 17:32 80m - / -14 R7KKO -15 / - 6 Partial capture
09-21 17:26 80m -2 / 0 UA3FO -6 / -5 3 ✓ Full exchange observed
09-21 17:23 80m - / -23 R7KKO -6 / - 2 Partial capture
09-21 17:21 80m -1 / -6 UA3QNA +20 / - 5 ✓ Closing observed
09-21 17:18 80m +3 / -16 RK6MC +8 / - 4 ✓ Closing observed
09-21 17:15 80m -2 / - UA4PDJ - / -16 2 ✓ Closing fragment
09-21 17:13 80m -8 / - R2SN -6 / -1 3 ✓ Closing observed
09-21 17:12 80m -2 / - R1TET -9 / -11 7 ✓ Closing observed
09-21 17:11 80m -10 / -6 R2HD -6 / -2 4 ✓ Full exchange observed
09-21 17:10 80m -8 / +4 EV1R +10 / - 2 Partial capture
09-15 14:25 40m - / -6 OE3FVU -10 / - 2 Partial capture
09-15 14:25 40m - / - R7OI -12 / - 3 ✓ Closing fragment
09-15 14:21 40m - / +1 RW4HD -8 / - 4 ✓ Closing fragment
09-15 14:13 40m -12 / - RA9CAD - / -12 2 ✓ Closing fragment
09-15 06:51 40m -17 / -5 EU1EU -19 / - 3 ✓ Closing observed
09-15 06:23 40m - / -4 RA1TR -12 / - 2 Partial capture
09-15 06:20 40m -20 / -20 HA7TM -16 / -9 3 ✓ Full exchange observed
09-15 06:13 40m - / 0 LZ2II +1 / - 2 ✓ Closing fragment
09-15 06:10 40m - / -22 R2SN -8 / - 5 Partial capture
09-15 06:08 40m -19 / -18 RA1TR -12 / -15 3 Partial capture
09-14 17:22 40m -3 / - R4HEN - / -3 2 ✓ Closing fragment
09-14 17:16 80m +6 / - UA3IDQ - / -13 4 Partial capture
09-14 17:14 40m -4 / - RG6ZF - / -1 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
092315 -10 1035  UB3PDB CT2GQA IM58 (x3)
80m 
UTC    dB Audio  Message
151100 -11 2002  UB3PDB RO5A RR73
165900  -7 1960  UB3PDB YO4NT -13 (x2)
170300  +5  252  UB3PDB UA3NFI LO07
170315 -20 2081  RA9FDR UB3PDB -11 (x2)
170500  +5  252  UB3PDB UA3NFI R-05 (x2)
170700  -1 1502  UB3PDB RA3WY KO81 (x3)
171015  -3 2347  UB3PDB RU3X -06 (x2)
171100 -13 2080  RU3X UB3PDB 73
171115  +0 2347  UB3PDB RU3X 73
40m 
UTC    dB Audio  Message
141315 -14  912  RA9CAD UB3PDB R-12 (x2)
141730 -10  912  RT8T UB3PDB R-10
142030 -10  590  CQ UB3PDB KO93
142115  -5 2029  UB3PDB RW4HD LO53
142130  -8  590  R4AGO UB3PDB RR73
142145  -8 2029  UB3PDB RW4HD LO53 (x3)
142315  -4 1813  UB3PDB OE3FVU JN78
142515 -12 1138  UB3PDB R7OI KN87 (x2)
142545 -11 1814  UB3PDB OE3FVU R-06
142615 -11 1138  UB3PDB R7OI 73
142615 -10 1813  UB3PDB OE3FVU R-06
20m 
UTC    dB Audio  Message
080700 -19 1209  UB3PDB RA6FSV LN05
080730 -24 1923  UB3PDB RA1TR 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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