LU4DBP — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving LU4DBP, decoded by SO8OO in southeastern Poland. 50 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-23.
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 50 FT8 messages attributed to LU4DBP as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 50 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -15 dB
- Estimated 10th-90th percentile
- -18 to -12 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 0.
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 LU4DBP in decoded directed-looking exchanges:
Most frequent locator attributed to LU4DBP
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
- FF81 · 24 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 12,844 km (approx.)
- Last such locator decoded
- 2026-08-23 00:08 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 UTC | Band | LU4DBP S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-23 02:07 | 20m | - / -19 | KS0AA | -7 / - | 2 | ✓ Closing fragment |
| 08-23 00:30 | 20m | - / -8 | WB4GBI | -17 / - | 5 | ✓ Closing fragment |
| 08-23 00:08 | 20m | -14 / -8 | DL2AX | +10 / -17 | 6 | ✓ Full exchange observed |
| 08-23 00:06 | 20m | -16 / - | EA4FME | -17 / -9 | 4 | ✓ Closing observed |
| 08-23 00:02 | 20m | -12 / - | RW0SM | - / -10 | 2 | ✓ Closing fragment |
| 08-23 00:02 | 20m | - / - | CT2IGO | -15 / - | 2 | Partial capture |
| 08-23 00:01 | 20m | -16 / - | KE2CJL | - / -16 | 2 | ✓ Closing fragment |
| 08-22 23:58 | 20m | -14 / - | BI1AFK | - / -23 | 5 | ✓ Closing fragment |
| 08-22 23:57 | 20m | - / - | CT2IGO | -12 / - | 4 | Partial capture |
| 08-22 23:49 | 20m | - / - | DK9ZQ | +7 / - | 6 | Partial capture |
| 08-22 23:46 | 20m | -16 / - | RV0AAE | - / -15 | 2 | ✓ Closing fragment |
| 08-22 23:44 | 20m | -17 / - | DG5RN | +7 / -20 | 4 | Partial capture |
| 08-22 23:39 | 20m | - / - | DL1R | +15 / - | 9 | Partial capture |
| 08-22 23:32 | 20m | - / - | DL2AX | +2 / - | 2 | Partial capture |
| 08-22 02:46 | 20m | - / -15 | R0AX | -14 / - | 3 | ✓ Closing fragment |
| 08-22 02:37 | 20m | - / -13 | R0ACR | -16 / - | 3 | ✓ Closing fragment |
| 08-01 23:57 | 20m | - / -15 | UA8Q | -19 / - | 3 | ✓ Closing fragment |
| 08-01 23:52 | 20m | - / - | EA5W | -14 / - | 6 | Partial capture |
| 08-01 22:46 | 20m | - / -21 | MW7RHR | -9 / - | 2 | Partial capture |
| 07-23 22:36 | 20m | - / - | EA7LGM | +9 / - | 4 | Partial capture |
| 07-20 00:09 | 20m | - / -17 | IW2DNI | -3 / - | 5 | ✓ Closing fragment |
| 07-20 00:01 | 20m | - / - | IW2DNI | -3 / - | 6 | Partial capture |
| 07-17 23:16 | 20m | - / - | IW2DNI | -3 / - | 13 | Partial capture |
| 07-13 22:11 | 20m | - / -13 | NV1U | -16 / - | 2 | ✓ Closing fragment |
| 07-09 22:45 | 20m | - / -15 | V31MA | -17 / - | 2 | ✓ Closing fragment |
| 07-09 20:03 | 20m | - / - | LZ2VQ | -12 / - | 2 | Partial capture |
| 07-09 19:57 | 20m | - / -8 | RV6FT | +4 / - | 4 | ✓ Closing fragment |
| 07-09 19:57 | 20m | - / - | LZ2VQ | -8 / - | 2 | Partial capture |
| 07-06 22:35 | 20m | - / - | DL1R | +2 / - | 9 | Partial capture |
| 07-03 00:32 | 20m | - / - | IZ3ODB | -22 / - | 2 | Partial capture |
| 07-03 00:26 | 20m | - / - | RM8T | +3 / - | 2 | Partial capture |
| 07-02 23:59 | 20m | - / - | IZ3ODB | -12 / - | 2 | Partial capture |
| 07-02 23:57 | 20m | - / -20 | R0ADA | -14 / - | 3 | Partial capture |
| 07-02 23:48 | 20m | - / - | IZ3ODB | -14 / - | 3 | Partial capture |
| 06-28 20:34 | 20m | - / -7 | DL3RAJ | -9 / - | 4 | ✓ Closing fragment |
| 06-28 20:30 | 20m | - / -19 | R8ACF | -10 / - | 3 | Partial capture |
| 06-28 20:26 | 20m | - / - | G7NUT | -2 / - | 4 | Partial capture |
| 06-28 20:26 | 20m | - / -16 | SV5BYP | -8 / - | 3 | ✓ Closing fragment |
| 06-28 20:19 | 20m | - / -14 | R5AV | -12 / - | 2 | Partial capture |
| 06-26 22:34 | 20m | - / -24 | MM0KQC | -6 / - | 4 | Partial capture |
| 06-26 21:19 | 20m | - / - | M7SLE | -2 / - | 5 | Partial capture |
| 06-26 21:09 | 20m | - / - | F4FLF | -1 / - | 6 | Partial capture |
| 06-24 21:14 | 20m | - / - | EI2IIB | -14 / - | 2 | Partial capture |
| 06-24 21:07 | 20m | - / - | EA8DQE | -11 / - | 2 | ✓ Closing fragment |
| 06-24 20:57 | 20m | - / - | DL1R | -12 / - | 5 | Partial capture |
| 06-24 20:52 | 20m | - / -9 | BI4XDT | -4 / - | 2 | Partial capture |
| 06-24 02:43 | 20m | - / -16 | WA4FU | -6 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 000845 -16 2416 CQ LU4DBP FF81 000900 +9 2416 LU4DBP DL2AX JO51 000915 -14 2415 DL2AX LU4DBP -17 000930 +11 2416 LU4DBP DL2AX R-08 000945 -14 2415 DL2AX LU4DBP RR73 001000 +13 2415 LU4DBP DL2AX 73 003000 -21 1611 LU4DBP WB4GBI EM85 (x5) 004430 -7 2416 LU4DBP KC8KCM FM08 020700 -8 833 LU4DBP KS0AA -19 (x2) 232900 -2 1206 LU4DBP XQ1KK 73
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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