ON4ASV — 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 ON4ASV, decoded by SO8OO in southeastern Poland. 3,153 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 69 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.
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 3,153 FT8 messages attributed to ON4ASV as the transmitting token by decoded message structure across 69 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 20 m (36%) and 80 m (8%). Most decodes (71%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +2.1 dB.
Overview
Bands
Last attributed message: 2026-10-22 17:51 UTC
Observed FT8 message patterns
- Attributed sample
- 3,153 messages
- Active dates
- 69 UTC dates
- Estimated median S/N
- +2.1 dB
- Estimated 10th-90th percentile
- -10 to +15 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 100, moderate (-15 to -9 dB) 316, strong (≥ -8 dB) 2,737.
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 ON4ASV 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 ON4ASV
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
- JO11 · 1,232 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,331 km (approx.)
- Last such locator decoded
- 2026-10-22 17:49 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 | ON4ASV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 17:51 | 40m | +12 / - | IZ8MNF | - / -12 | 2 | ✓ Closing fragment |
| 10-22 17:48 | 40m | +6 / - | RK6OU | - / -15 | 5 | ✓ Closing fragment |
| 10-22 17:45 | 40m | +4 / -13 | M0OXO | -10 / -13 | 5 | ✓ Full exchange observed |
| 10-22 17:42 | 40m | +14 / - | UA3NFG | - / -7 | 2 | ✓ Closing fragment |
| 10-22 17:41 | 40m | +18 / - | R9CA | - / -22 | 3 | ✓ Closing fragment |
| 10-22 17:40 | 40m | +21 / +8 | R6DOP | -13 / -10 | 3 | ✓ Full exchange observed |
| 10-22 17:38 | 40m | +16 / - | R6ADW | - / - | 2 | Partial capture |
| 10-22 17:35 | 40m | +10 / - | RV6HE | - / -16 | 3 | ✓ Closing fragment |
| 10-22 17:33 | 40m | +6 / +6 | R3DID | -12 / -11 | 3 | Partial capture |
| 10-22 17:31 | 40m | +19 / - | RT8T | - / -22 | 3 | ✓ Closing fragment |
| 10-22 17:30 | 40m | +18 / - | RW4HB | - / -15 | 2 | ✓ Closing fragment |
| 10-22 17:28 | 40m | +18 / -1 | R4MA | +2 / 0 | 5 | ✓ Full exchange observed |
| 10-22 17:27 | 40m | +16 / -3 | R4GM | +4 / +1 | 5 | ✓ Full exchange observed |
| 10-22 17:24 | 40m | +12 / -12 | M0OXO | -8 / - | 3 | Partial capture |
| 10-22 17:21 | 40m | +20 / - | R1QF/P | - / - | 3 | Partial capture |
| 10-22 17:18 | 40m | +5 / - | RA6OF | - / -5 | 3 | ✓ Closing fragment |
| 10-22 17:10 | 40m | +12 / -10 | R9WEI | -9 / -8 | 5 | ✓ Full exchange observed |
| 10-22 17:08 | 40m | - / - | PE9JAN | -4 / - | 2 | Partial capture |
| 10-22 17:07 | 40m | +18 / -6 | RU3DNN | +3 / - | 4 | ✓ Closing observed |
| 10-22 17:06 | 40m | +16 / -8 | R3MEA | -4 / -1 | 4 | ✓ Full exchange observed |
| 10-22 17:05 | 40m | +6 / - | R4HAI | - / - | 2 | Partial capture |
| 10-22 17:04 | 40m | +11 / - | R4ADJ | - / -10 | 3 | ✓ Closing fragment |
| 10-22 17:00 | 40m | +17 / -15 | RO3ZW | -4 / -13 | 8 | Partial capture |
| 10-22 16:38 | 80m | -4 / - | R6HV | - / -22 | 5 | ✓ Closing fragment |
| 10-20 18:10 | 40m | +8 / - | OR1A | - / -17 | 4 | ✓ Closing fragment |
| 10-20 18:09 | 40m | +12 / - | BH6IDD | - / -14 | 2 | ✓ Closing fragment |
| 10-20 18:07 | 40m | +21 / - | UA1PBD | - / -16 | 3 | ✓ Closing fragment |
| 10-20 17:50 | 40m | +10 / - | RD6OZ | - / -18 | 2 | ✓ Closing fragment |
| 10-20 17:46 | 40m | +18 / - | BD8FWI | - / -17 | 2 | ✓ Closing fragment |
| 10-20 17:45 | 40m | +13 / - | EA2AUK | -11 / -13 | 3 | ✓ Full exchange observed |
| 10-19 13:26 | 40m | +1 / - | RD9T | - / -19 | 3 | ✓ Closing fragment |
| 10-19 13:24 | 40m | -2 / +6 | HF37KJP | -8 / -6 | 3 | Partial capture |
| 10-19 13:20 | 40m | +2 / -4 | R80SAA | -4 / -3 | 5 | ✓ Full exchange observed |
| 10-19 13:19 | 40m | +1 / - | RV3IN | - / - | 5 | Partial capture |
| 10-19 13:16 | 40m | +5 / -14 | RN6DR | -7 / -24 | 5 | ✓ Full exchange observed |
| 10-19 13:15 | 40m | +2 / - | RM8CZ | - / - | 2 | Partial capture |
| 10-19 13:14 | 40m | +4 / - | UA0ACZ | - / - | 2 | Partial capture |
| 10-17 20:28 | 160m | -9 / -18 | RY3D | -4 / - | 2 | Partial capture |
| 10-17 20:13 | 160m | - / -15 | IZ7NLJ | -8 / - | 2 | ✓ Closing fragment |
| 10-17 20:09 | 160m | -14 / -19 | DO2HG | -10 / -16 | 6 | ✓ Full exchange observed |
| 10-17 20:08 | 160m | - / - | M0PPF | -8 / - | 2 | ✓ Closing fragment |
| 10-17 20:06 | 160m | -14 / +3 | IK4OLQ | -5 / -18 | 5 | ✓ Full exchange observed |
| 10-17 20:01 | 40m | +9 / - | RA9QBR | -23 / -16 | 4 | ✓ Closing observed |
| 10-17 19:59 | 40m | +9 / - | EU1KI | - / -10 | 2 | ✓ Closing fragment |
| 10-17 19:58 | 40m | +19 / - | VK4LK | - / -20 | 3 | ✓ Closing fragment |
| 10-17 19:56 | 40m | +15 / -3 | UB3KGW | -3 / -8 | 4 | ✓ Full exchange observed |
| 10-17 19:54 | 40m | +7 / - | UC6W | - / -24 | 3 | ✓ Closing fragment |
| 10-17 19:53 | 40m | +8 / - | IU8WQS | - / -22 | 2 | ✓ Closing fragment |
| 10-17 19:51 | 40m | +20 / - | JH5LCN | - / -11 | 2 | ✓ Closing fragment |
| 10-17 19:49 | 40m | +14 / - | BA8BLK | - / -8 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 174230 -7 1190 ON4ASV YU1EU -02 174245 +11 648 UA3NFG ON4ASV -07 (x2) 174530 +5 1772 M0OXO ON4ASV JO11 174545 -8 1772 ON4ASV M0OXO -13 174600 +3 1772 M0OXO ON4ASV R-13 174615 -11 1772 ON4ASV M0OXO RR73 174630 +4 1772 M0OXO ON4ASV 73 174845 +7 2073 RK6OU ON4ASV JO11 (x5) 175115 +13 1102 IZ8MNF ON4ASV -12 (x2)
UTC dB Audio Message 172900 +6 2134 II5GG ON4ASV JO11 172915 -17 2133 ON4ASV II5GG -07 172930 +10 2133 II5GG ON4ASV R+00 172945 -16 2133 ON4ASV II5GG RR73 173000 +9 2134 II5GG ON4ASV 73 (x4) 165030 +4 285 ON4ASV II5GG -16 (x2) 163845 -3 1507 R6HV ON4ASV JO11 (x5)
UTC dB Audio Message 200715 -14 1634 IK4OLQ ON4ASV 73 200800 -7 1054 ON4ASV M0PPF +15 (x2) 200900 -9 1183 ON4ASV DO2HG -19 200915 -11 1183 DO2HG ON4ASV R-16 200930 -15 1183 ON4ASV DO2HG RR73 200945 -18 1183 DO2HG ON4ASV 73 201000 -7 1183 ON4ASV DO2HG RR73 201015 -13 1183 DO2HG ON4ASV 73 201315 -7 1112 ON4ASV IZ7NLJ -15 (x2) 202815 -4 1991 ON4ASV RY3D -18 202830 -9 2360 RY3D ON4ASV JO11 181945 -15 1652 CQ ON4ASV JO11 182200 -8 1562 ON4ASV LZ3AW KN32
UTC dB Audio Message 193915 -20 1948 ON4ASV OH1LA R+12 193930 +8 1949 OH1LA ON4ASV RR73 193945 -13 1948 ON4ASV OH1LA 73 194100 +13 915 UN8DSW ON4ASV -18 194200 +9 915 CQ ON4ASV JO11 194215 -7 731 ON4ASV G0AZH IO83 194230 +12 732 G0AZH ON4ASV -06 194245 -4 732 ON4ASV G0AZH R+05 194300 +14 732 G0AZH ON4ASV RR73 194315 -3 731 ON4ASV G0AZH 73 194415 -8 846 ON4ASV GX7RAF/P +09 194430 +11 847 GX7RAF/P ON4ASV R+02 194445 -6 846 ON4ASV GX7RAF/P RR73 194500 +13 847 GX7RAF/P ON4ASV 73 144700 -7 485 DL6EL ON4ASV RR73
UTC dB Audio Message 131430 +23 882 BH4CVO ON4ASV -13 (x2) 153945 -24 1868 EH3ST ON4ASV R-06 154200 -19 1253 RU3GC ON4ASV 73 154400 -24 1480 RQ6B ON4ASV JO11 (x3) 154945 -24 1395 <...> ON4ASV R-07 155300 -18 1232 UA1APB ON4ASV JO11 (x3) 155715 -23 1362 <...> ON4ASV JO11 160115 -24 1925 RJ3F ON4ASV JO11 (x2) 160530 -19 1285 UB1CDJ ON4ASV 73
UTC dB Audio Message 152645 -11 1577 EG5ECL ON4ASV JO11 (x3) 153015 -15 1578 DO9BAU ON4ASV +03 (x2) 153330 -14 1578 <...> ON4ASV JO11 (x4) 153745 -1 1578 R1BPZ ON4ASV JO11 114645 -14 1577 9A4BP/P ON4ASV JO11 (x3) 114845 -1 1577 9A2HX/P ON4ASV -01 (x2)
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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