YB2GRI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YB2GRI, decoded by SO8OO in southeastern Poland. 67 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-06-18.
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 67 FT8 messages attributed to YB2GRI as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (96%), followed by 20 m (4%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-06-18 13:19 UTC
Observed FT8 message patterns
- Attributed sample
- 67 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -19 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 25, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 19.
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 YB2GRI in decoded directed-looking exchanges:
Most frequent locator attributed to YB2GRI
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
- OI52 · 42 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 10,589 km (approx.)
- Last such locator decoded
- 2026-06-18 13:18 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 | YB2GRI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-16 08:19 | 20m | - / -22 | HB9OAB | -6 / - | 5 | Partial capture |
| 08-16 07:31 | 20m | - / - | F5SZB | -11 / - | 7 | Partial capture |
| 08-14 16:10 | 20m | - / +1 | RK4FF | -13 / - | 3 | ✓ Closing fragment |
| 08-01 13:40 | 20m | - / -13 | UB4CJS | -23 / - | 6 | Partial capture |
| 07-27 13:43 | 20m | - / -11 | R6FMF | -14 / - | 2 | Partial capture |
| 07-25 15:06 | 20m | - / -16 | UT5MB | -3 / - | 6 | ✓ Closing fragment |
| 07-24 15:29 | 20m | - / -11 | HB9CAL | -5 / - | 3 | ✓ Closing fragment |
| 07-24 15:26 | 20m | - / - | HB9CAL | -2 / - | 2 | Partial capture |
| 07-24 15:15 | 20m | - / - | 9A4ZM | -7 / - | 2 | Partial capture |
| 07-24 14:48 | 20m | - / -17 | F4IVG | -20 / - | 3 | Partial capture |
| 07-21 16:08 | 20m | - / - | UA3IHJ | -10 / - | 2 | Partial capture |
| 07-13 16:03 | 20m | - / - | F6CAX | -20 / - | 3 | ✓ Closing fragment |
| 07-13 16:02 | 20m | - / -22 | ON6AA | -2 / - | 3 | ✓ Closing fragment |
| 07-09 13:31 | 10m | - / -2 | A65HS | -9 / - | 2 | Partial capture |
| 07-08 17:32 | 20m | - / -18 | DJ7JB | +2 / - | 3 | Partial capture |
| 07-07 13:17 | 20m | - / - | LZ2VQ | -23 / - | 2 | Partial capture |
| 07-03 14:06 | 10m | - / - | CT3KU | -10 / - | 2 | Partial capture |
| 07-03 14:05 | 10m | - / -15 | IW9EZO | -12 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 161045 -11 1600 YB2GRI RK4FF +01 (x3) 073100 -15 1266 YB2GRI F5SZB IN95 (x7) 081900 -8 624 YB2GRI HB9OAB -22 (x5)
UTC dB Audio Message 140545 -12 892 YB2GRI IW9EZO -15 (x2) 140645 -10 2365 YB2GRI CT3KU IM12 (x2) 133100 -8 743 YB2GRI A65HS -02 (x2)
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