W4YVA — 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 W4YVA, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-30.
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 10 FT8 messages attributed to W4YVA as the transmitting token by decoded message structure across 1 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 -24 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 10 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -24 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.
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 W4YVA in decoded directed-looking exchanges:
Most frequent locator attributed to W4YVA
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
- FM17 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,470 km (approx.)
- Last such locator decoded
- 2026-08-30 00:54 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 | W4YVA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-30 01:00 | 80m | -17 / -13 | DK5WL | +4 / - | 4 | Partial capture |
| 08-30 01:00 | 80m | -20 / - | EA1CQ | -12 / - | 3 | Partial capture |
| 08-30 00:55 | 80m | - / - | DJ4LK | +6 / - | 2 | ✓ Closing fragment |
| 08-30 00:54 | 80m | - / - | OZ1KWJ | +7 / - | 5 | Partial capture |
| 08-30 00:52 | 80m | -24 / - | EI5JL | - / - | 2 | Partial capture |
| 08-30 00:50 | 80m | - / - | OK1UOZ | +6 / - | 2 | ✓ Closing fragment |
| 08-30 00:49 | 80m | -24 / - | 9A4V | +15 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 005445 -24 1162 CQ WW W4YVA FM17 005500 +7 521 W4YVA OZ1KWJ JO45 (x2) 005530 +7 2587 W4YVA DJ4LK JN59 005600 +11 521 W4YVA OZ1KWJ JO45 005600 +5 2588 W4YVA DJ4LK RR73 005630 +4 521 W4YVA OZ1KWJ JO45 005645 -22 1162 N5MUN W4YVA R FM17 010000 -12 1161 W4YVA EA1CQ IN83 010000 +4 1580 W4YVA DK5WL JN39 (x2) 010045 -17 1161 DK5WL W4YVA R FM17 010100 +6 1580 W4YVA DK5WL -13 010115 -20 1161 EA1CQ W4YVA R FM17 (x2)
CW
No CW receptions recorded for this callsign in the last 30 days.
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