W4VDI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving W4VDI, decoded by SO8OO in southeastern Poland. 2 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-22.
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 2 FT8 messages attributed to W4VDI as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.
Overview
Observed FT8 message patterns
- Attributed sample
- 2 messages
- Active dates
- 1 UTC dates
- S/N summary
- Too few decodes
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
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 W4VDI in decoded directed-looking exchanges:
Most frequent locator attributed to W4VDI
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
- EM82
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,248 km (approx.)
- Last such locator decoded
- 2026-08-22 21:32 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 | W4VDI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 20:05 | 20m | - / -16 | DL3MIB | +4 / - | 4 | ✓ Closing fragment |
| 08-22 22:00 | 20m | - / - | OZ1BW | +2 / - | 3 | Partial capture |
| 08-22 21:58 | 20m | - / -5 | DL1UDO | -16 / - | 3 | ✓ Closing fragment |
| 08-22 21:33 | 20m | - / - | IZ0GYP | -14 / - | 4 | Partial capture |
| 07-22 01:50 | 40m | - / - | G1CEC | -9 / - | 2 | Partial capture |
| 07-21 03:14 | 40m | - / -16 | PC2J | -17 / - | 2 | Partial capture |
| 07-13 05:04 | 40m | - / - | OE9DAI | -19 / - | 4 | ✓ Closing fragment |
| 07-13 04:58 | 40m | - / -21 | IQ4JO | -18 / - | 2 | Partial capture |
| 07-13 04:15 | 40m | - / -16 | PA3DTN | -8 / - | 3 | ✓ Closing fragment |
| 07-13 03:26 | 80m | - / -3 | W1MLT | -21 / - | 4 | Partial capture |
| 07-13 03:12 | 80m | - / -23 | HB9CXZ | +5 / - | 7 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 213445 -13 269 W4VDI IZ0GYP JN61 (x2) 213645 -2 778 W4VDI M0PPT -17 215815 -18 1422 W4VDI DL1UDO JO31 (x3) 220045 -3 778 W4VDI OZ1BW JO55 (x2) 220130 -14 778 N5WBW W4VDI -06 220145 +4 778 W4VDI OZ1BW JO55 220545 -20 2047 W4VDI KB3MAW R-09 200545 +6 1110 W4VDI DL3MIB JN57 (x4)
UTC dB Audio Message 041530 -7 600 W4VDI PA3DTN -16 (x3) 041830 -16 2042 W4VDI PD1BER -19 045830 -19 2082 W4VDI IQ4JO JN63 (x2) 050400 -18 1862 W4VDI OE9DAI JN47 (x4) 031415 -20 1589 W4VDI PC2J -16 (x2) 014615 -10 625 W4VDI G1CEC IO83 (x3)
UTC dB Audio Message 031245 +3 1973 W4VDI HB9CXZ JN46 (x7) 032615 -20 2112 W4VDI W1MLT -03 (x4)
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