OV4AF — 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 OV4AF, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-03 and 2026-10-09.
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 23 FT8 messages attributed to OV4AF as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (83%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 23 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -16 to -7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 6.
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 OV4AF in decoded directed-looking exchanges:
Most frequent locator attributed to OV4AF
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
- JO65 · 8 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 855 km (approx.)
- Last such locator decoded
- 2026-10-09 05:46 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 | OV4AF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-20 12:42 | 10m | - / +7 | EA7Z | -8 / - | 2 | Partial capture |
| 10-09 05:45 | 40m | -5 / - | R8XF/M | - / - | 2 | Partial capture |
| 10-04 22:58 | 40m | - / 0 | IK4TVP | 0 / - | 4 | Partial capture |
| 10-04 05:23 | 40m | -13 / -1 | S56A | -2 / +7 | 4 | ✓ Full exchange observed |
| 10-04 05:13 | 40m | -11 / - | R1AI | - / +4 | 3 | ✓ Closing fragment |
| 10-04 05:12 | 40m | -8 / - | RZ4FWA | - / -1 | 2 | ✓ Closing fragment |
| 10-04 05:11 | 40m | -7 / - | EA1IOK | - / -14 | 3 | ✓ Closing fragment |
| 10-04 05:08 | 40m | -18 / - | HK3W | - / - | 2 | Partial capture |
| 10-04 05:06 | 40m | -12 / -4 | IU6VSY | -6 / +8 | 6 | ✓ Full exchange observed |
| 10-03 15:06 | 40m | -16 / - | OH3GBW | -11 / - | 2 | ✓ Closing observed |
| 10-03 12:39 | 40m | - / +4 | DK6WS | -14 / - | 2 | ✓ Closing fragment |
| 10-03 12:36 | 40m | - / - | ES6DO | -16 / - | 2 | ✓ Closing fragment |
| 10-03 12:35 | 40m | - / - | 9A4ZM | +4 / - | 2 | Partial capture |
| 10-03 12:35 | 40m | - / -7 | PE1NPS | -9 / - | 2 | Partial capture |
| 10-03 12:22 | 40m | - / - | DF1XM | -1 / - | 4 | ✓ Closing fragment |
| 10-03 12:21 | 40m | - / -10 | IK4YHJ | -8 / - | 4 | ✓ Closing fragment |
| 10-03 12:18 | 40m | - / - | 9A4ZM | -4 / - | 2 | Partial capture |
| 10-03 12:18 | 40m | -16 / +5 | SP9UPH | -8 / - | 4 | ✓ Closing observed |
| 10-03 12:17 | 40m | - / +2 | DB2VS | -22 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 124200 -9 2205 OV4AF EA7Z IM67 (x2)
UTC dB Audio Message 051345 -12 841 R1AI OV4AF R+04 (x3) 051945 -15 838 HK3W OV4AF JO65 052230 -11 837 OZ6MM OV4AF JO65 052345 +0 837 OV4AF S56A JN76 052400 -13 837 S56A OV4AF +07 052415 -6 837 OV4AF S56A R-01 (x2) 225800 -8 1934 OV4AF IK4TVP +00 (x4) 054545 -3 822 R8XF/M OV4AF JO65 (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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