IU0SBY — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving IU0SBY, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-24.
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 5 FT8 messages attributed to IU0SBY as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 5 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -17 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 0.
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 IU0SBY in decoded directed-looking exchanges:
Most frequent locator attributed to IU0SBY
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
- JN63 · 5 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 979 km (approx.)
- Last such locator decoded
- 2026-08-24 21:02 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 | IU0SBY S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-02 22:11 | 40m | - / 0 | 5B4AMM | -18 / - | 2 | ✓ Closing fragment |
| 11-02 21:54 | 40m | - / - | M1FFQ | -10 / - | 2 | Partial capture |
| 10-30 08:59 | 40m | - / - | DL1PAB | -6 / - | 7 | Partial capture |
| 10-30 08:53 | 40m | - / - | DL6UM | -1 / - | 2 | Partial capture |
| 10-30 08:52 | 40m | - / - | DL1PAB | -5 / - | 5 | Partial capture |
| 10-30 08:48 | 40m | - / -13 | HB9EKJ | -21 / - | 2 | ✓ Closing fragment |
| 10-23 21:39 | 80m | - / - | SV9MBH | -23 / - | 3 | ✓ Closing fragment |
| 10-23 21:33 | 80m | - / - | SV9MBH | -23 / - | 5 | ✓ Closing fragment |
| 10-23 21:10 | 80m | - / - | SV9MBH | -13 / - | 2 | ✓ Closing fragment |
| 08-24 21:00 | 20m | -18 / - | CR7BUJ | - / - | 3 | Partial capture |
| 08-24 20:58 | 20m | - / - | OE9GWV | -12 / - | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 085330 +1 708 IU0SBY DL6UM JO60 085330 -6 973 IU0SBY DL1PAB JO62 085400 -3 708 IU0SBY DL6UM JO60 085400 -4 973 IU0SBY DL1PAB JO62 (x8) 215430 -11 1791 IU0SBY M1FFQ IO92 (x2) 221115 -16 1947 IU0SBY 5B4AMM +00 (x2)
UTC dB Audio Message 205615 -7 2427 IU0SBY RD7O KN98 210800 -15 1484 IU0SBY SV9MBH RR73 (x13)
UTC dB Audio Message 205800 -13 1092 CQ IU0SBY JN63 205815 -12 1256 IU0SBY OE9GWV JN47 (x2) 205900 -13 1092 CQ IU0SBY JN63 205915 -17 1256 IU0SBY OE9GWV JN47 (x2) 205945 +11 2773 IU0SBY F1PBZ -21 210015 -13 1256 IU0SBY OE9GWV JN47 210030 -17 1092 CR7BUJ IU0SBY JN63 210045 -15 1257 IU0SBY OE9GWV JN47 210130 -17 1092 CR7BUJ IU0SBY JN63 (x2)
CW
No CW receptions recorded for this callsign in the last 30 days.
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