UA3WDO — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UA3WDO, decoded by SO8OO in southeastern Poland. 396 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-18.
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 396 FT8 messages attributed to UA3WDO as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (38%), followed by 20 m (36%) and 10 m (23%). Most decodes (85%) fell within the six-hour window 12:00-18:00 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: 2026-09-18 13:56 UTC
Observed FT8 message patterns
- Attributed sample
- 396 messages
- Active dates
- 24 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -19 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 113, moderate (-15 to -9 dB) 167, strong (≥ -8 dB) 116.
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 UA3WDO 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 UA3WDO
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
- KO71 · 155 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 945 km (approx.)
- Last such locator decoded
- 2026-09-18 13:56 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 | UA3WDO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-18 13:56 | 40m | -9 / +1 | RN6MA | -8 / -5 | 3 | ✓ Full exchange observed |
| 09-18 13:54 | 40m | -16 / -18 | HB9ELE | +2 / -13 | 4 | Partial capture |
| 09-18 13:53 | 40m | -12 / +2 | RC9WC | -17 / -13 | 4 | ✓ Full exchange observed |
| 09-18 13:51 | 40m | -11 / -7 | RA7Z | -18 / +2 | 4 | ✓ Full exchange observed |
| 09-18 13:50 | 40m | -10 / - | UB8LAR | - / -14 | 4 | ✓ Closing fragment |
| 09-18 13:48 | 40m | -8 / - | RJ4H | - / +8 | 2 | ✓ Closing fragment |
| 09-18 13:47 | 40m | - / - | DA1ST | -11 / - | 3 | Partial capture |
| 09-18 03:16 | 40m | - / -4 | UD8D | -9 / - | 3 | Partial capture |
| 09-18 03:15 | 40m | - / - | RM5F | -1 / - | 2 | Partial capture |
| 09-18 03:09 | 40m | - / - | RM5F | +4 / - | 2 | Partial capture |
| 09-18 03:02 | 40m | - / -18 | RM5F | +6 / - | 5 | Partial capture |
| 09-18 02:44 | 40m | - / - | R4ML | -16 / - | 2 | ✓ Closing fragment |
| 09-11 14:50 | 40m | -4 / - | R9OON | - / -13 | 3 | Partial capture |
| 09-06 14:26 | 40m | -10 / +8 | EU1AFX | -11 / -2 | 5 | ✓ Full exchange observed |
| 09-06 14:23 | 40m | -13 / +1 | UA3PTY | -14 / -24 | 5 | ✓ Full exchange observed |
| 09-06 14:22 | 40m | - / - | DL7UKM | -7 / - | 3 | Partial capture |
| 09-06 14:22 | 40m | -7 / - | R4AGO | - / +5 | 3 | ✓ Closing fragment |
| 09-06 13:42 | 40m | - / - | HA3HZ | -6 / - | 5 | Partial capture |
| 09-06 13:42 | 40m | -11 / +6 | RY3F | -10 / -24 | 3 | ✓ Full exchange observed |
| 09-06 13:40 | 40m | -8 / - | RA0SCZ | - / -11 | 4 | Partial capture |
| 09-06 13:39 | 40m | -11 / -6 | R1943OD | -10 / +5 | 2 | Partial capture |
| 09-03 13:06 | 40m | -10 / - | UK8OM | - / -15 | 2 | Partial capture |
| 09-03 13:04 | 40m | -16 / - | RA3LJ | - / -7 | 2 | ✓ Closing fragment |
| 08-24 13:31 | 20m | - / -3 | 9A2RD | +16 / - | 3 | Partial capture |
| 08-24 13:31 | 20m | - / - | F4BYA | +1 / - | 12 | Partial capture |
| 08-24 13:27 | 20m | - / - | DC9GT | -15 / - | 4 | Partial capture |
| 08-24 13:27 | 20m | - / - | F4BYA | 0 / - | 4 | Partial capture |
| 08-23 13:53 | 10m | -15 / - | LZ3CB | -7 / - | 3 | ✓ Closing observed |
| 08-23 13:44 | 40m | -12 / - | UA9URI | - / -1 | 4 | Partial capture |
| 08-23 13:41 | 40m | -16 / - | R3NAW | - / -7 | 5 | Partial capture |
| 08-23 13:35 | 20m | - / - | F4BYA | +8 / - | 4 | Partial capture |
| 08-23 13:33 | 20m | 0 / - | OK5AG/P | - / +6 | 2 | ✓ Closing fragment |
| 08-22 14:33 | 20m | 0 / - | EA5D | - / -7 | 2 | ✓ Closing fragment |
| 08-22 14:33 | 20m | -6 / - | PA2KV | -2 / -23 | 5 | ✓ Closing observed |
| 08-22 14:29 | 20m | +2 / - | RL2F | -11 / +1 | 3 | ✓ Closing observed |
| 08-22 12:48 | 20m | -2 / - | M7CCZ | - / -8 | 4 | Partial capture |
| 08-22 12:46 | 20m | - / - | F4BYA | +2 / - | 4 | Partial capture |
| 08-22 12:43 | 20m | -12 / - | JE2LPC | - / -5 | 3 | Partial capture |
| 08-21 13:26 | 20m | -6 / - | EA4IDN | - / -3 | 3 | ✓ Closing fragment |
| 08-21 13:24 | 20m | -12 / - | PA1PXL | - / -24 | 2 | Partial capture |
| 08-21 13:24 | 20m | - / - | DL6EL | +13 / - | 6 | Partial capture |
| 08-21 13:20 | 20m | - / -6 | R4CES | -4 / - | 3 | ✓ Closing fragment |
| 08-21 13:13 | 20m | - / -12 | PD1ADA | -1 / - | 7 | ✓ Closing fragment |
| 08-21 12:56 | 20m | -5 / - | PD1GOL | - / -6 | 3 | Partial capture |
| 08-21 12:56 | 20m | - / -17 | GJ0KYZ | -6 / - | 2 | Partial capture |
| 08-21 12:11 | 10m | - / -3 | DL6RBG | -15 / - | 2 | ✓ Closing fragment |
| 08-21 12:08 | 10m | - / - | LZ2SPD | -6 / - | 2 | Partial capture |
| 08-21 12:08 | 10m | - / -19 | DO6LE | -24 / - | 2 | Partial capture |
| 08-20 13:37 | 20m | -11 / - | RZ5D | - / -6 | 2 | ✓ Closing fragment |
| 08-20 13:28 | 20m | - / - | R7GA | -4 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 135215 -11 2151 RA7Z UA3WDO RR73 135245 -1 2151 UB8LAR UA3WDO 73 135300 -16 2244 UA3WDO RC9WC +02 135315 -11 2151 RC9WC UA3WDO R-13 135330 -18 2244 UA3WDO RC9WC RR73 135345 -14 2151 RC9WC UA3WDO 73 135415 -16 2151 HB9ELE UA3WDO -13 135430 +1 737 UA3WDO HB9ELE R-18 (x2) 135545 -15 2151 CQ UA3WDO KO71 135600 +0 737 UA3WDO HB9ELE R-18 135615 -10 2151 CQ UA3WDO KO71 135630 -9 2151 UA3WDO RN6MA +01 135645 -9 2151 RN6MA UA3WDO R-05 135700 -8 2151 UA3WDO RN6MA RR73
UTC dB Audio Message 133145 +4 2913 UA3WDO F4BYA JN19 133145 +15 766 UA3WDO 9A2RD JN65 133215 -3 2913 UA3WDO F4BYA JN19 133215 +16 766 UA3WDO 9A2RD JN65 133245 +1 2913 UA3WDO F4BYA JN19 133245 +18 783 UA3WDO 9A2RD R-03 133345 -1 2913 UA3WDO F4BYA JN19 (x3) 133515 -13 2326 UA3WDO ON7AC JO11 133515 +2 2913 UA3WDO F4BYA JN19 (x5)
UTC dB Audio Message 111245 -3 2486 UA3WDO F1PBZ -08 122030 -19 1657 UA3WDO RL1B RR73 122830 -8 726 UA3WDO DC3LC R-03 (x2) 120815 -11 2197 UA3WDO F5GPE JN25 120815 -23 1881 UA3WDO DO6LE JN59 120845 -6 2193 UA3WDO LZ2SPD KN22 (x2) 120945 -24 1881 UA3WDO DO6LE R-19 121115 -15 1942 UA3WDO DL6RBG R-03 (x2) 135345 -6 728 UA3WDO LZ3CB KN32 135430 -15 2226 LZ3CB UA3WDO RR73 135445 -8 728 UA3WDO LZ3CB 73 135500 -15 2226 CQ UA3WDO KO71
UTC dB Audio Message 175300 -2 2431 R1NO UA3WDO RR73 175315 -11 1436 UA3WDO RN3N LO28 175315 -3 1713 UA3WDO R2WAF +08 175315 +4 2696 UA3WDO R1TAX KO58 175330 -4 2431 RN3N UA3WDO -11 175345 -7 1435 UA3WDO RN3N R-09 175400 +1 2431 RN3N UA3WDO RR73 175415 +2 2696 UA3WDO R1TAX KO58 175430 -1 2431 R2WAF UA3WDO +12 175445 -14 2003 UA3WDO R3BDQ -02 175445 -5 1713 UA3WDO R2WAF R+05 175445 -3 2696 UA3WDO R1TAX KO58 175530 -2 2431 R3BDQ UA3WDO R+05 175545 -19 2004 UA3WDO R3BDQ RR73 175600 +3 2431 R3BDQ UA3WDO 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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