UD8D — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving UD8D, decoded by SO8OO in southeastern Poland. 1,149 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-23.
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 1,149 FT8 messages attributed to UD8D as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 80 m (17%) and 20 m (13%). Most decodes (77%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-10-23 19:01 UTC
Observed FT8 message patterns
- Attributed sample
- 1,149 messages
- Active dates
- 38 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -21 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 309, moderate (-15 to -9 dB) 387, strong (≥ -8 dB) 453.
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 UD8D 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 UD8D
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
- MO07 · 441 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,670 km (approx.)
- Last such locator decoded
- 2026-10-23 03:30 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 | UD8D S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 19:00 | 160m | -14 / -12 | 4J3DJ | -9 / -13 | 3 | Partial capture |
| 10-23 18:33 | 160m | -18 / - | RX6DX | - / -19 | 2 | Partial capture |
| 10-23 18:27 | 160m | -13 / - | R2EA/P | -15 / -15 | 2 | ✓ Closing observed |
| 10-23 17:49 | 160m | -23 / -18 | R3BHK | -14 / -12 | 3 | Partial capture |
| 10-23 17:48 | 160m | -24 / - | UA4N | - / -16 | 2 | ✓ Closing fragment |
| 10-23 17:45 | 160m | - / -16 | R6OBN | -12 / - | 2 | ✓ Closing fragment |
| 10-23 03:31 | 40m | -22 / -3 | RT6DU | -3 / - | 4 | ✓ Closing observed |
| 10-23 03:15 | 40m | -20 / - | V47NT | - / -12 | 8 | Partial capture |
| 10-23 03:10 | 40m | -15 / - | HB9TIH | - / -7 | 2 | ✓ Closing fragment |
| 10-23 03:08 | 40m | -14 / - | C5R | - / -12 | 3 | ✓ Closing fragment |
| 10-23 02:59 | 80m | - / 0 | RN3YN | -19 / - | 2 | ✓ Closing fragment |
| 10-23 02:59 | 80m | - / -14 | SV1ENG | -13 / - | 3 | ✓ Closing fragment |
| 10-22 17:47 | 160m | -24 / -11 | RX3VF | -21 / - | 4 | ✓ Closing observed |
| 10-22 17:46 | 160m | -20 / - | RA3TRR | - / -14 | 2 | ✓ Closing fragment |
| 10-22 17:41 | 160m | -18 / - | R3TIX | - / -22 | 3 | ✓ Closing fragment |
| 10-22 17:26 | 160m | - / -8 | RJ3DC | -11 / - | 3 | ✓ Closing fragment |
| 10-22 16:43 | 160m | -14 / - | UA4CKN | - / -13 | 2 | ✓ Closing fragment |
| 10-22 16:29 | 160m | - / -6 | UA3EDQ | +3 / - | 2 | ✓ Closing fragment |
| 10-22 16:14 | 160m | - / -6 | UA3EDQ | +8 / - | 2 | Partial capture |
| 10-21 15:47 | 80m | -21 / - | R9YEZ | - / -9 | 3 | Partial capture |
| 10-21 15:14 | 160m | - / - | OH5KNL | -10 / - | 3 | Partial capture |
| 10-20 17:33 | 40m | -4 / -8 | F3CJ | -19 / -18 | 3 | ✓ Full exchange observed |
| 10-20 17:29 | 40m | - / - | IZ2WYA | 0 / - | 2 | Partial capture |
| 10-20 17:28 | 40m | -4 / -7 | M9XPN | -8 / -12 | 9 | ✓ Full exchange observed |
| 10-20 17:24 | 40m | -4 / -1 | G4FHL | -12 / - | 2 | ✓ Closing observed |
| 10-20 17:21 | 40m | -2 / - | G4FHL | - / -11 | 2 | Partial capture |
| 10-20 17:18 | 40m | -2 / -10 | HB9GWJ | -4 / -12 | 5 | ✓ Full exchange observed |
| 10-20 17:18 | 40m | -6 / -11 | HB9AMO | +11 / - | 3 | ✓ Closing observed |
| 10-20 17:13 | 40m | -5 / - | R6AAG | - / -14 | 2 | ✓ Closing fragment |
| 10-20 17:13 | 40m | -6 / - | DL2VN | -8 / -12 | 5 | Partial capture |
| 10-20 17:06 | 40m | -2 / - | UB3BDJ | -13 / - | 2 | ✓ Closing observed |
| 10-20 17:04 | 40m | 0 / - | SP7MAZ | - / -9 | 2 | ✓ Closing fragment |
| 10-20 17:04 | 40m | -2 / - | F4CWQ | -12 / -17 | 4 | ✓ Closing observed |
| 10-20 16:59 | 40m | -1 / - | BI3UPU | - / -9 | 2 | ✓ Closing fragment |
| 10-20 16:58 | 40m | -1 / - | UA9ZZ | - / +2 | 3 | ✓ Closing fragment |
| 10-19 03:41 | 40m | - / -19 | F8VNU | -3 / - | 10 | ✓ Closing fragment |
| 10-19 03:41 | 40m | -13 / +6 | ON8WR | -3 / -9 | 5 | ✓ Full exchange observed |
| 10-19 03:32 | 40m | -8 / - | UA4PDJ | - / -1 | 2 | Partial capture |
| 10-19 03:20 | 40m | - / - | F8VNU | 0 / - | 2 | Partial capture |
| 10-19 03:14 | 40m | -4 / - | DB3EH | - / -10 | 2 | ✓ Closing fragment |
| 10-19 03:11 | 40m | -4 / - | UB9USV | - / -13 | 2 | ✓ Closing fragment |
| 10-19 03:07 | 40m | -8 / - | KA9FOX | - / -16 | 2 | ✓ Closing fragment |
| 10-19 03:02 | 40m | -7 / - | HK3AB | - / -19 | 3 | ✓ Closing fragment |
| 10-19 02:58 | 40m | -10 / -2 | P4/WE9V | +1 / -6 | 5 | Partial capture |
| 10-18 18:21 | 80m | - / - | HF40BLP | +12 / - | 3 | Partial capture |
| 10-18 18:21 | 80m | - / - | SP0LPR | -1 / - | 3 | Partial capture |
| 10-18 18:21 | 80m | - / -12 | EU1EU | -1 / - | 52 | Partial capture |
| 10-18 18:21 | 80m | - / - | UB3YGA | +7 / - | 9 | Partial capture |
| 10-18 18:16 | 80m | -8 / -2 | YO6FNF | +2 / -12 | 4 | ✓ Full exchange observed |
| 10-18 18:16 | 80m | - / - | E74MG | +3 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 174600 -15 1682 UD8D R6OBN 73 174815 -24 1618 UA4N UD8D -16 (x2) 174915 -23 1619 R3BHK UD8D -12 (x2) 175000 -14 1460 UD8D R3BHK R-18 175600 -22 1818 UD8D UA3TJC -13 182700 -13 776 R2EA/P UD8D -15 182815 -15 851 UD8D R2EA/P 73 183145 -24 2092 UD8D RA6ATZ 73 183345 -19 1279 RX6DX UD8D -19 (x2) 190030 -16 829 4J3DJ UD8D -13 (x2) 190115 -9 577 UD8D 4J3DJ R-12
UTC dB Audio Message 032045 -21 1693 F6FHZ UD8D -18 032145 -19 1694 CQ UD8D MO07 032200 -8 296 UD8D EA2DYB IN83 032315 -24 1693 CQ UD8D MO07 a1 (x4) 032545 -24 1693 RU3DBT UD8D -14 032700 -7 297 UD8D EA2DYB IN83 033045 -23 1693 CQ UD8D MO07 033100 -1 505 UD8D RT6DU KN94 (x2) 033145 -22 1692 RT6DU UD8D RR73 033200 -4 505 UD8D RT6DU 73 033315 -24 1692 R9JDC UD8D RR73
UTC dB Audio Message 184645 +0 1001 UD8D EU1EU -12 (x5) 154700 -17 1178 R9YEZ UD8D -09 (x4) 025930 -24 1055 UD8D SV1ENG KM18 025930 -24 706 UD8D RN3YN R+00 (x2) 030030 -6 1055 UD8D SV1ENG R-14 (x2) 030330 -12 1311 R9OX UD8D -18
UTC dB Audio Message 095630 -19 1735 CQ UD8D MO07 095700 -9 1735 G0VUH UD8D -09 (x2) 095830 -11 1736 DN9SGE UD8D RR73 095900 -10 1737 CQ UD8D MO07 (x2) 100000 -16 1737 HB9ACA UD8D +00 100100 -18 1737 CQ UD8D MO07 (x2) 122445 -10 1092 UD8D EA7J 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.
CW
No CW receptions recorded for this callsign in the last 30 days.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee