OH4VOA — 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 OH4VOA, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-26 and 2026-10-27.
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 15 FT8 messages attributed to OH4VOA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 15 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -14 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 4.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with OH4VOA in decoded directed-looking exchanges:
Most frequent locator attributed to OH4VOA
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
- KP34 · 14 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,648 km (approx.)
- Last such locator decoded
- 2026-10-27 15:45 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 | OH4VOA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-31 16:22 | 40m | - / -7 | DK7ZT | -5 / - | 4 | Partial capture |
| 10-31 16:20 | 40m | - / -11 | DD4DE | -12 / - | 4 | ✓ Closing fragment |
| 10-31 16:19 | 40m | - / -18 | SP6M | +19 / - | 2 | ✓ Closing fragment |
| 10-29 20:10 | 160m | - / - | OH1TSM | +14 / - | 2 | Partial capture |
| 10-27 15:43 | 80m | -24 / - | XX9TXN | - / - | 4 | Partial capture |
| 10-27 14:20 | 80m | -11 / - | XX9TXN | - / - | 4 | Partial capture |
| 10-27 14:15 | 80m | -12 / - | XX9TXN | - / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 161945 +16 634 OH4VOA SP6M R-18 (x2) 162045 +9 678 OH4VOA DL6UM R-09 162045 -14 2368 OH4VOA DD4DE JO54 (x3) 162215 -4 1907 OH4VOA DK7ZT -07 162215 -9 2368 OH4VOA DD4DE 73 162245 -4 1907 OH4VOA DK7ZT -07 (x3)
UTC dB Audio Message 201000 +15 935 OH4VOA OH1TSM KP11 (x2)
UTC dB Audio Message 151115 -2 2488 XX9TXN OH4VOA KP34 (x15)
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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