UT4VL — 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 UT4VL, decoded by SO8OO in southeastern Poland. 2,795 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 82 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-18.
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 2,795 FT8 messages attributed to UT4VL as the transmitting token by decoded message structure across 82 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (58%), followed by 20 m (39%) and 10 m (2%). The busiest six-hour window was 16:00-22:00 UTC, containing 49% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-10-18 22:21 UTC
Observed FT8 message patterns
- Attributed sample
- 2,795 messages
- Active dates
- 82 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -18 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 658, moderate (-15 to -9 dB) 1,147, strong (≥ -8 dB) 990.
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 UT4VL 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 UT4VL
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
- KN58 · 1,097 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 687 km (approx.)
- Last such locator decoded
- 2026-10-18 22:15 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 | UT4VL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-19 00:12 | 40m | - / +1 | UA4FKT | 0 / - | 3 | ✓ Closing fragment |
| 10-18 22:42 | 40m | - / -12 | F4JLS | -6 / - | 3 | ✓ Closing fragment |
| 10-18 22:41 | 40m | - / - | UA4FKT | -4 / - | 2 | Partial capture |
| 10-18 22:35 | 40m | - / -11 | F1PBZ | -6 / - | 2 | Partial capture |
| 10-18 22:32 | 40m | - / - | UA4FKT | 0 / - | 2 | Partial capture |
| 10-18 22:21 | 40m | -11 / - | 4Z5NN | 0 / - | 2 | ✓ Closing observed |
| 10-18 22:12 | 40m | - / +2 | YO3GNF | -6 / - | 6 | ✓ Closing fragment |
| 10-18 22:01 | 40m | -4 / -19 | K2ZJ | -8 / -6 | 4 | ✓ Full exchange observed |
| 10-18 21:58 | 40m | -16 / - | UN8PC | - / -11 | 2 | ✓ Closing fragment |
| 10-18 21:56 | 40m | -14 / - | BG4UCZ | - / -12 | 2 | Partial capture |
| 10-18 21:55 | 40m | - / +1 | EX7CQ | -7 / - | 2 | ✓ Closing fragment |
| 10-18 21:51 | 40m | -12 / - | JA2VBK | - / -12 | 3 | Partial capture |
| 10-18 21:48 | 40m | -17 / - | JH2BJL | - / -11 | 4 | Partial capture |
| 10-17 12:16 | 10m | - / -13 | SM7SPG | -15 / - | 2 | Partial capture |
| 10-17 11:29 | 10m | - / -11 | EC5M | -7 / - | 2 | ✓ Closing fragment |
| 10-17 11:22 | 10m | - / -20 | EA4IDN | -11 / - | 3 | ✓ Closing fragment |
| 10-11 23:26 | 40m | - / -21 | F4MXT/P | -14 / - | 4 | Partial capture |
| 10-11 23:26 | 40m | -1 / - | IT9ACJ/I/AE | - / -19 | 3 | Partial capture |
| 10-11 23:21 | 40m | -2 / -19 | SM6KTO | -21 / -20 | 3 | ✓ Full exchange observed |
| 10-11 23:21 | 40m | +3 / -13 | SV5BYP | -11 / -18 | 7 | Partial capture |
| 10-11 23:19 | 40m | -2 / - | OH5KZ | - / -13 | 2 | Partial capture |
| 10-11 23:18 | 40m | -3 / - | 8Q7PR | - / -3 | 3 | ✓ Closing fragment |
| 10-11 23:16 | 40m | -1 / - | EA4D | -16 / - | 2 | ✓ Closing observed |
| 10-11 23:14 | 40m | -2 / - | JT1BZ | - / -17 | 2 | ✓ Closing fragment |
| 10-11 23:10 | 40m | -3 / - | EY7BM | - / -12 | 4 | Partial capture |
| 10-11 23:08 | 40m | -6 / - | OA4ENG | - / -22 | 3 | Partial capture |
| 10-11 23:07 | 40m | - / - | RA6OY | -6 / - | 2 | Partial capture |
| 10-11 23:04 | 40m | -7 / - | TJ1GD | - / -23 | 2 | ✓ Closing fragment |
| 10-11 23:02 | 40m | -8 / - | BG4UCZ | - / -21 | 2 | Partial capture |
| 10-11 22:51 | 40m | -13 / - | BG2GWN | - / - | 2 | Partial capture |
| 10-03 07:16 | 40m | -4 / -13 | HG5OGI | -4 / -16 | 4 | ✓ Full exchange observed |
| 10-03 07:00 | 40m | -14 / -12 | HA1BF | +2 / -4 | 6 | ✓ Full exchange observed |
| 10-03 06:57 | 40m | -12 / - | SV3AUW | - / -15 | 2 | ✓ Closing fragment |
| 10-03 05:51 | 40m | -11 / +1 | GJ0KYZ | -12 / -18 | 5 | ✓ Full exchange observed |
| 10-03 05:50 | 40m | -10 / -10 | DK6WS | -13 / -13 | 3 | ✓ Full exchange observed |
| 10-03 04:23 | 40m | -18 / -9 | LZ1DPP | -12 / -8 | 2 | Partial capture |
| 10-03 04:12 | 40m | - / -11 | OH6IH | -9 / - | 2 | ✓ Closing fragment |
| 10-03 02:43 | 40m | - / +4 | G3TKT | -9 / - | 5 | ✓ Closing fragment |
| 10-03 02:35 | 40m | - / -5 | LZ2PAJ | -6 / - | 2 | ✓ Closing fragment |
| 09-28 18:45 | 40m | - / - | IV3VFP | 0 / - | 3 | Partial capture |
| 09-28 18:45 | 40m | - / - | PE1EZC | -12 / - | 2 | Partial capture |
| 09-28 16:49 | 40m | - / - | DL2GP | -15 / - | 2 | Partial capture |
| 09-28 16:44 | 40m | - / -10 | F1PBZ | -9 / - | 2 | Partial capture |
| 09-10 04:24 | 40m | -12 / - | OE4BHF | - / -6 | 4 | ✓ Closing fragment |
| 09-10 04:22 | 40m | - / -8 | HB9EFK | -10 / - | 2 | ✓ Closing fragment |
| 09-10 04:19 | 40m | -13 / +2 | YO6LM | -4 / +4 | 4 | ✓ Full exchange observed |
| 09-10 04:17 | 40m | -4 / 0 | SV2JAO | -9 / +2 | 5 | ✓ Full exchange observed |
| 09-10 04:15 | 40m | -10 / - | LA8ENA | -19 / +1 | 4 | ✓ Closing observed |
| 09-10 04:12 | 40m | -11 / -6 | SM7TZK | -18 / - | 4 | Partial capture |
| 09-10 00:10 | 40m | - / -9 | 2E0MRK | -11 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 222100 -11 2059 4Z5NN UT4VL RR73 222115 +0 457 UT4VL 4Z5NN 73 223215 -1 2059 UT4VL UA4FKT LO23 (x2) 223515 -7 2736 UT4VL F1PBZ -11 (x2) 224115 -6 2059 UT4VL UA4FKT LO23 (x2) 224245 -8 1789 UT4VL F4JLS IN97 (x3) 224445 -20 2059 UT4VL UA9SY LO63 001215 -2 1973 UT4VL UA4FKT LO23 (x3)
UTC dB Audio Message 122100 -13 774 UT4VL SV2CLJ R+02 072800 -17 1447 UT4VL M0MDS R-25 (x2) 172545 -20 1292 UT4VL CT3MD IM13 (x2) 112230 -16 1934 UT4VL EA4IDN IN70 (x3) 112700 -12 2495 UT4VL CR7BUW IM58 112900 -11 835 UT4VL EC5M R-11 (x2) 113000 -24 1583 UT4VL IT9NOV JM78 114530 -16 1999 UT4VL UB3ADO/P R-05 121630 -13 771 UT4VL SM7SPG R-13 (x2)
UTC dB Audio Message 063715 -10 1028 OD5ZZ UT4VL R+00 (x2) 063815 -5 516 EA8WU UT4VL KN58 (x3) 064000 -11 419 UT4VL EA8WU RR73 064015 +2 419 EA8WU UT4VL 73 064045 +0 615 M7MJW UT4VL -21 (x3) 195145 +7 1884 UT4VL AO5FSB R-15 (x2) 190000 +5 606 UT4VL CT2FXY IM59 (x3)
UTC dB Audio Message 020215 -24 1364 <...> UT4VL -08
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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