UB1API — 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 UB1API, decoded by SO8OO in southeastern Poland. 222 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-15.
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 222 FT8 messages attributed to UB1API as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (41%), followed by 40 m (27%) and 80 m (23%). Most decodes (86%) 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 -13 dB.
Overview
Bands
Last attributed message: 2026-10-15 19:43 UTC
Observed FT8 message patterns
- Attributed sample
- 222 messages
- Active dates
- 27 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -20 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 73, moderate (-15 to -9 dB) 87, strong (≥ -8 dB) 62.
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 UB1API 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 UB1API
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
- KP50 · 89 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,309 km (approx.)
- Last such locator decoded
- 2026-10-15 19:40 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 | UB1API S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-15 19:42 | 160m | -18 / 0 | YL2EA | +3 / +3 | 5 | ✓ Full exchange observed |
| 10-15 19:40 | 160m | -10 / - | R2UC | - / -14 | 3 | ✓ Closing fragment |
| 10-15 19:39 | 160m | -8 / - | VK6IR | - / - | 2 | Partial capture |
| 10-15 19:37 | 160m | -15 / - | RK2M | -17 / +1 | 6 | ✓ Closing observed |
| 10-15 19:36 | 160m | -12 / - | RA1QCZ | -16 / -3 | 5 | ✓ Closing observed |
| 10-15 19:34 | 160m | -14 / - | R8LCA | - / -11 | 2 | ✓ Closing fragment |
| 10-15 19:33 | 160m | -15 / - | UA4CKN | - / -9 | 2 | ✓ Closing fragment |
| 10-15 19:32 | 160m | -12 / -2 | RA3WY | -23 / -2 | 5 | ✓ Full exchange observed |
| 10-15 19:31 | 160m | -13 / - | UA9FGJ | - / -3 | 2 | ✓ Closing fragment |
| 10-15 19:30 | 160m | -8 / - | JA7JPZ | - / - | 2 | Partial capture |
| 10-15 19:25 | 160m | -24 / - | UA9JCH | - / -5 | 2 | ✓ Closing fragment |
| 10-15 19:23 | 160m | - / -10 | RM5F | -8 / - | 4 | ✓ Closing fragment |
| 10-15 19:22 | 160m | -18 / - | UA9JCH | - / -9 | 2 | Partial capture |
| 10-15 19:16 | 80m | -8 / -1 | R9CA | -20 / -22 | 6 | ✓ Full exchange observed |
| 10-15 12:10 | 40m | -18 / - | RA0AF | - / - | 2 | Partial capture |
| 09-27 18:47 | 160m | -16 / - | RU1Z | -12 / -20 | 4 | ✓ Closing observed |
| 09-27 18:43 | 160m | -14 / -7 | R2EA/P | -2 / -15 | 4 | ✓ Full exchange observed |
| 09-27 18:41 | 160m | -14 / +4 | RN1NEB | -14 / -8 | 5 | ✓ Full exchange observed |
| 09-27 18:35 | 80m | +3 / -2 | RA3ICA | -1 / +3 | 4 | ✓ Full exchange observed |
| 09-27 15:12 | 40m | -18 / -4 | R3UCQ | -12 / +1 | 4 | ✓ Full exchange observed |
| 09-27 15:09 | 40m | -14 / - | R9CP | - / - | 2 | Partial capture |
| 09-27 15:06 | 40m | -17 / -5 | R3EEO | -14 / -6 | 4 | ✓ Full exchange observed |
| 09-27 15:05 | 40m | -17 / - | UA0ACZ | - / -10 | 2 | ✓ Closing fragment |
| 09-27 15:01 | 40m | -16 / - | R3DGH | - / -13 | 2 | ✓ Closing fragment |
| 09-27 14:58 | 40m | -16 / - | R8PG | - / -21 | 4 | Partial capture |
| 09-27 14:56 | 40m | -15 / - | UK8FCM | - / -14 | 3 | ✓ Closing fragment |
| 09-27 14:54 | 40m | -14 / - | R9FF | - / - | 3 | Partial capture |
| 09-27 14:51 | 40m | -13 / - | R9FFJ | - / -12 | 3 | ✓ Closing fragment |
| 09-22 18:05 | 160m | -24 / -15 | R7NA | -9 / -7 | 2 | Partial capture |
| 09-22 18:00 | 160m | -21 / - | RI1FJZ | - / - | 3 | Partial capture |
| 09-22 17:49 | 160m | - / - | RA6ATZ | -13 / - | 3 | Partial capture |
| 09-22 17:47 | 160m | - / - | R1NI | -15 / - | 2 | ✓ Closing fragment |
| 09-22 17:27 | 40m | -18 / -4 | UA9SHH | 0 / -10 | 4 | ✓ Full exchange observed |
| 09-22 17:25 | 40m | -12 / -15 | R4PFY | -10 / -12 | 3 | ✓ Full exchange observed |
| 09-22 17:23 | 40m | -10 / -6 | UB9WPD | -7 / -18 | 3 | ✓ Full exchange observed |
| 09-06 20:00 | 40m | -11 / -4 | RK6C | -2 / -1 | 5 | ✓ Full exchange observed |
| 09-06 16:24 | 40m | -17 / - | R3UBM | -17 / -24 | 4 | ✓ Closing observed |
| 09-05 19:05 | 160m | -18 / - | RX6CC | - / - | 2 | Partial capture |
| 09-05 19:03 | 160m | -24 / -19 | SV2JAO | -8 / - | 3 | ✓ Closing observed |
| 09-05 19:00 | 160m | -19 / -11 | R9CS/P | -12 / -6 | 4 | ✓ Full exchange observed |
| 09-05 19:00 | 160m | -18 / -12 | EW1I | +4 / -3 | 3 | ✓ Full exchange observed |
| 09-05 18:58 | 160m | - / - | IK0HBN | +2 / - | 2 | Partial capture |
| 09-05 18:57 | 160m | -20 / - | RN3TT | - / -4 | 2 | ✓ Closing fragment |
| 09-05 18:49 | 80m | -2 / - | RU9FM | - / - | 2 | Partial capture |
| 09-05 18:49 | 80m | -3 / -4 | DL9KM | 0 / - | 6 | ✓ Closing observed |
| 09-05 18:45 | 80m | -3 / +6 | RC2Y | -1 / - | 3 | ✓ Closing observed |
| 09-05 18:39 | 80m | -3 / - | SM6/DL1HTW | - / -13 | 2 | Partial capture |
| 09-05 18:37 | 40m | - / -1 | UA3FO | -2 / - | 3 | Partial capture |
| 09-05 18:36 | 80m | -1 / - | RU3KA | -4 / -13 | 4 | ✓ Closing observed |
| 09-05 18:35 | 80m | -2 / -6 | R3LCW | -2 / -6 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 193745 -14 1334 RA1QCZ UB1API 73 193800 -13 1437 UB1API RK2M KO97 193815 -16 1334 RK2M UB1API +01 (x2) 193900 -18 1437 UB1API RK2M 73 193915 -7 1334 VK6IR UB1API KP50 (x2) 194030 -11 1334 R2UC UB1API KP50 (x3) 194215 +3 1070 UB1API YL2EA KO26 194230 -18 1334 YL2EA UB1API +03 194245 +0 1070 UB1API YL2EA R+00 194300 -19 1334 YL2EA UB1API RR73 194315 +5 1070 UB1API YL2EA 73
UTC dB Audio Message 185015 +0 2050 UB1API DL9KM JN68 (x2) 185100 -3 1335 DL9KM UB1API RR73 185115 -1 2050 UB1API DL9KM 73 183515 -3 1337 RZ0SW UB1API KP50 183530 +4 1272 UB1API RA3ICA KO77 183545 +3 1337 RA3ICA UB1API +03 183600 -5 1272 UB1API RA3ICA R-02 (x2) 191630 -8 1336 R9CA UB1API KP50 (x2) 191715 -20 725 UB1API R9CA -01 191730 -5 1336 R9CA UB1API R-22 191745 -20 725 UB1API R9CA RR73 191800 -10 1336 R9CA UB1API 73
UTC dB Audio Message 150530 -14 1371 UA0ACZ UB1API 73 150600 -21 1371 R3EEO UB1API -06 150615 -13 985 UB1API R3EEO R-05 150630 -13 1371 R3EEO UB1API RR73 150645 -15 985 UB1API R3EEO 73 150900 -15 1371 R9CP UB1API KP50 (x2) 151200 -11 1852 UB1API R3UCQ -04 151215 -15 1371 R3UCQ UB1API R+01 151230 -12 1852 UB1API R3UCQ RR73 151245 -20 1371 R3UCQ UB1API 73 121015 -16 1372 UB6ZDJ UB1API KP50 121045 -19 1372 RA0AF UB1API KP50 (x2) 190945 -11 1372 EP2AES UB1API KP50
UTC dB Audio Message 111200 +2 2322 UB1API R50RKZ +06 (x2) 122600 -21 1408 UB1API UA3GDJ R-01 (x2) 165545 -13 2162 UB1API UA9C -06 (x2) 174915 -17 1407 3A2MW UB1API KP50 180215 -3 1409 YC9GBQ UB1API KP50 (x3) 180400 -14 2611 UB1API YC9GBQ -14
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.
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