I1VDM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving I1VDM, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-26 and 2026-08-28.
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 22 FT8 messages attributed to I1VDM as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (91%), followed by 10 m (9%). Several six-hour UTC windows tied for the largest share (91%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was +8 dB.
Overview
Bands
Last attributed message: 2026-08-28 14:52 UTC
Observed FT8 message patterns
- Attributed sample
- 22 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- +8 dB
- Estimated 10th-90th percentile
- -13 to +20 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 18.
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 I1VDM in decoded directed-looking exchanges:
Most frequent locator attributed to I1VDM
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
- JN35 · 16 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,209 km (approx.)
- Last such locator decoded
- 2026-08-28 14:52 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 | I1VDM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-28 14:52 | 20m | -15 / - | <...> | - / 0 | 2 | Partial capture |
| 08-27 10:21 | 10m | -11 / - | SP6IXF | - / -7 | 2 | ✓ Closing fragment |
| 08-26 08:16 | 20m | +17 / - | RI1FJL | - / - | 5 | Partial capture |
| 08-26 07:48 | 20m | +8 / - | RI1FJL | - / -17 | 10 | Partial capture |
| 08-26 07:44 | 20m | +6 / -1 | RI1FJL | +2 / -17 | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 075045 +7 1602 RI1FJL I1VDM JN35 (x12) 145200 -15 1520 <...> I1VDM JN35 145215 -4 1758 I1VDM DK8HC/P -05 145230 -15 1519 <...> I1VDM R+00
UTC dB Audio Message 102130 -13 726 SP6IXF I1VDM R-07 (x2)
UTC dB Audio Message 074130 -12 1076 I1VDM HB10GBT +21
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.
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