I0YYA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving I0YYA, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-02 and 2026-09-14.
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 I0YYA as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (64%), followed by 80 m (32%) and 40 m (5%). Several six-hour UTC windows tied for the largest share (68%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-09-14 08:54 UTC
Observed FT8 message patterns
- Attributed sample
- 22 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -21 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 2.
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 I0YYA in decoded directed-looking exchanges:
Most frequent locator attributed to I0YYA
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
- JN61 · 8 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-09-14 08:54 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 | I0YYA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-06 20:31 | 80m | -12 / 0 | LZ1EV | +8 / +3 | 4 | ✓ Full exchange observed |
| 09-06 20:20 | 80m | -7 / - | OM2WW | - / -12 | 3 | ✓ Closing fragment |
| 09-02 08:37 | 10m | -13 / - | HL3KPJ | - / -19 | 7 | Partial capture |
| 09-02 08:18 | 10m | -22 / - | DN9SGE | - / - | 2 | ✓ Closing fragment |
| 09-02 08:12 | 10m | -16 / - | JI1EIX | - / -9 | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 085415 -24 1688 II6IGTO I0YYA JN61
UTC dB Audio Message 202000 -2 1157 OM2WW I0YYA JN61 (x3) 202300 -3 1156 DO1WGK I0YYA RR73 202400 -13 1808 DL9KM I0YYA RR73 203130 +8 1754 I0YYA LZ1EV +00 (x2) 203215 -12 1754 LZ1EV I0YYA R+03 203230 +4 1754 I0YYA RR73; R2UC <...> -02 203245 -12 1754 LZ1EV I0YYA 73
UTC dB Audio Message 081130 -12 985 UA9QFF I0YYA JN61 081230 -18 1151 JI1EIX I0YYA JN61 (x4) 081800 -24 1840 DN9SGE I0YYA RR73 (x2) 083715 -13 1246 HL3KPJ I0YYA JN61 (x7)
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee