UB6LDM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UB6LDM, decoded by SO8OO in southeastern Poland. 339 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-27 and 2026-09-19.
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 339 FT8 messages attributed to UB6LDM as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (99%), followed by 80 m (1%). Most decodes (100%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-09-19 21:32 UTC
Observed FT8 message patterns
- Attributed sample
- 339 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -18 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 109, moderate (-15 to -9 dB) 151, strong (≥ -8 dB) 79.
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 UB6LDM 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 UB6LDM
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
- KN97 · 183 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,288 km (approx.)
- Last such locator decoded
- 2026-09-19 21:32 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 | UB6LDM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 21:33 | 40m | - / - | IU1HGN | -10 / - | 2 | Partial capture |
| 09-19 21:31 | 40m | +4 / - | 9A1CCB | - / -7 | 2 | ✓ Closing fragment |
| 09-19 21:28 | 40m | +1 / - | CN8NS | - / -22 | 4 | ✓ Closing fragment |
| 09-19 21:27 | 40m | -1 / - | PD0LBY | -3 / -24 | 3 | ✓ Closing observed |
| 09-19 21:26 | 40m | +2 / +4 | R4HLO | -14 / -14 | 3 | ✓ Full exchange observed |
| 09-19 21:25 | 40m | +1 / +3 | R5BM | -13 / -12 | 5 | ✓ Full exchange observed |
| 09-19 21:23 | 40m | -6 / - | SQ2RBY/P | - / - | 3 | Partial capture |
| 09-19 21:21 | 40m | +5 / - | IQ0AAI | - / - | 3 | Partial capture |
| 09-19 21:18 | 40m | +8 / -7 | MM7WQD | -20 / - | 5 | Partial capture |
| 09-19 21:15 | 40m | +3 / - | EW2ZC | - / -2 | 3 | ✓ Closing fragment |
| 09-19 21:11 | 40m | +4 / - | DJ1JAY | - / -23 | 3 | Partial capture |
| 09-19 21:10 | 40m | +6 / - | DJ0MAB | - / - | 2 | Partial capture |
| 09-19 21:09 | 40m | +8 / - | EA5JKT | -10 / -22 | 7 | ✓ Closing observed |
| 09-19 21:08 | 40m | +4 / - | UC6W | - / - | 2 | ✓ Closing fragment |
| 09-19 21:06 | 40m | -4 / - | R2DUH/QRP | - / - | 2 | Partial capture |
| 09-19 21:04 | 40m | 0 / +2 | TA7MMI | -13 / +3 | 4 | ✓ Full exchange observed |
| 09-19 21:03 | 40m | -3 / 0 | LZ1DPP | -10 / - | 3 | ✓ Closing observed |
| 09-19 21:02 | 40m | +2 / - | SQ9SET | - / - | 2 | Partial capture |
| 09-19 21:00 | 40m | +6 / - | R5CB | -13 / -3 | 4 | ✓ Closing observed |
| 09-19 20:56 | 40m | - / -15 | DG6NI | -2 / - | 2 | Partial capture |
| 09-19 20:55 | 40m | +1 / -6 | SM7TZK | -4 / -8 | 6 | ✓ Full exchange observed |
| 09-19 20:53 | 40m | -1 / +7 | R3RRC/P | -4 / -13 | 5 | ✓ Full exchange observed |
| 06-28 23:23 | 40m | -16 / -5 | UA6LIK | -11 / -4 | 5 | ✓ Full exchange observed |
| 06-28 23:20 | 40m | -19 / - | EI4JFB | - / -13 | 2 | ✓ Closing fragment |
| 06-28 23:19 | 40m | -19 / - | EA3JJN | - / -16 | 2 | ✓ Closing fragment |
| 06-28 23:13 | 40m | -18 / 0 | DL2ZM | +3 / -8 | 5 | Partial capture |
| 06-28 23:09 | 40m | -18 / - | 9J2FI | - / - | 4 | Partial capture |
| 06-28 23:07 | 40m | -18 / - | VK6EI | - / - | 4 | Partial capture |
| 06-28 23:05 | 40m | -16 / - | SP5ALD | - / -4 | 3 | ✓ Closing fragment |
| 06-28 23:00 | 40m | -16 / - | OM1AGE | - / -12 | 7 | Partial capture |
| 06-28 22:58 | 40m | -18 / - | F4HDR | - / -19 | 3 | Partial capture |
| 06-28 22:56 | 40m | -16 / - | LA1PHA | - / - | 2 | Partial capture |
| 06-28 22:55 | 40m | -17 / - | CX3VB | - / -18 | 2 | ✓ Closing fragment |
| 06-28 22:51 | 40m | -15 / - | R9WH | - / -7 | 3 | ✓ Closing fragment |
| 06-28 22:46 | 40m | -15 / - | EA1JVG | - / - | 3 | Partial capture |
| 06-28 22:45 | 40m | -17 / - | PD2XX | - / -11 | 2 | ✓ Closing fragment |
| 06-28 22:43 | 40m | -15 / - | EI2HF | - / -13 | 3 | ✓ Closing fragment |
| 06-28 22:40 | 40m | -14 / - | IK4LZH | -9 / -8 | 4 | ✓ Closing observed |
| 06-28 22:38 | 40m | -9 / - | PD4RJ | - / -13 | 2 | ✓ Closing fragment |
| 06-28 22:35 | 40m | -11 / - | UT2UAU | - / -6 | 3 | ✓ Closing fragment |
| 06-28 22:32 | 40m | -15 / - | J22FVY | - / - | 2 | Partial capture |
| 06-28 22:21 | 40m | -17 / +10 | ER1CW | -16 / - | 3 | ✓ Closing observed |
| 06-28 22:18 | 40m | -16 / - | OO0O | -8 / -15 | 4 | ✓ Closing observed |
| 06-28 22:11 | 40m | -17 / - | RA6AR | - / +3 | 2 | ✓ Closing fragment |
| 06-28 22:07 | 40m | -8 / - | RK6OV | - / -12 | 2 | ✓ Closing fragment |
| 06-28 22:02 | 40m | -14 / - | PP1DX | - / -22 | 4 | ✓ Closing fragment |
| 06-28 21:59 | 40m | -15 / - | CT7AXN | -19 / -10 | 3 | ✓ Closing observed |
| 06-28 21:53 | 40m | -12 / - | SV1EKI | - / -9 | 2 | ✓ Closing fragment |
| 06-28 21:50 | 40m | -15 / - | UT5UN | - / - | 3 | Partial capture |
| 06-28 21:47 | 40m | -8 / - | R1ZDG | - / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 212645 -2 1482 R4HLO UB6LDM -14 212700 -14 1483 UB6LDM R4HLO R+04 212715 +6 1482 R4HLO UB6LDM RR73 212745 +2 1483 PD0LBY UB6LDM -24 (x2) 212830 -3 1533 UB6LDM PD0LBY 73 212845 +5 1885 CN8NS UB6LDM KN97 (x4) 213115 +3 1491 9A1CCB UB6LDM -07 (x2) 213215 +4 1491 CQ UB6LDM KN97 213300 -11 1479 UB6LDM IU1HGN JN44 (x2)
UTC dB Audio Message 194530 -5 1547 UB6LDM UA3RBM +08 (x2) 194845 +5 1943 4Z5AV UB6LDM KN97 194900 -6 1943 UB6LDM 4Z5AV -05 194915 +7 1944 4Z5AV UB6LDM R-03 194930 -8 1944 UB6LDM 4Z5AV 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.
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