YO7OI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YO7OI, decoded by SO8OO in southeastern Poland. 36 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-07.
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 36 FT8 messages attributed to YO7OI as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (67%), followed by 40 m (33%). Several six-hour UTC windows tied for the largest share (97%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-09-07 04:56 UTC
Observed FT8 message patterns
- Attributed sample
- 36 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -13 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 20.
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 YO7OI in decoded directed-looking exchanges:
Most frequent locator attributed to YO7OI
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
- KN14 · 24 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 611 km (approx.)
- Last such locator decoded
- 2026-09-07 04:54 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 | YO7OI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-07 04:54 | 40m | -6 / -16 | N3LAG | -15 / -15 | 5 | ✓ Full exchange observed |
| 08-23 06:39 | 20m | - / - | RZ4FWA | -8 / - | 4 | Partial capture |
| 08-23 06:36 | 20m | - / -14 | UN0GY | 0 / - | 3 | ✓ Closing fragment |
| 06-30 05:43 | 40m | -13 / - | SP7TF | -20 / - | 2 | ✓ Closing observed |
| 06-30 05:39 | 40m | -9 / - | SN0WWA | - / -9 | 5 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 053945 -1 640 SN0WWA YO7OI KN14 (x5) 054245 -11 1306 CQ YO7OI KN14 a1 054330 -20 1307 YO7OI SP7TF RR73 054345 -13 1306 SP7TF YO7OI 73 045415 -9 1806 N3LAG YO7OI KN14 045430 -15 359 YO7OI N3LAG -16 045445 -4 1805 N3LAG YO7OI R-15 (x3) 045645 +1 1805 F4BYA YO7OI -10
UTC dB Audio Message 063630 -1 2662 YO7OI UN0GY -14 (x3) 063900 -6 2070 YO7OI RZ4FWA LO23 (x4) 143945 -17 2687 RI1FJL YO7OI KN14
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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