UA9YBF — 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 UA9YBF, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-12 and 2026-10-14.
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 25 FT8 messages attributed to UA9YBF as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 80 m (12%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-14 20:41 UTC
Observed FT8 message patterns
- Attributed sample
- 25 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -15 to -6 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 11.
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 UA9YBF in decoded directed-looking exchanges:
Most frequent locator attributed to UA9YBF
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
- NO03 · 14 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,979 km (approx.)
- Last such locator decoded
- 2026-10-14 20:41 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 | UA9YBF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-14 20:38 | 40m | -9 / - | OM0RX | - / -14 | 2 | ✓ Closing fragment |
| 10-14 20:36 | 40m | -8 / - | EA2DR | - / -24 | 2 | ✓ Closing fragment |
| 10-14 20:33 | 40m | -8 / - | DH0BRO | - / - | 2 | ✓ Closing fragment |
| 10-14 20:30 | 40m | - / - | EA2DR | -9 / - | 3 | Partial capture |
| 10-14 20:26 | 40m | - / -18 | F6KHM | +2 / - | 5 | ✓ Closing fragment |
| 10-14 20:23 | 40m | -9 / -14 | SV1DZB | -10 / - | 9 | ✓ Closing observed |
| 10-14 20:18 | 40m | - / - | EA2DR | -12 / - | 2 | Partial capture |
| 10-14 20:18 | 40m | - / -9 | EA3AAY | -7 / - | 3 | ✓ Closing fragment |
| 10-14 20:01 | 40m | - / - | EA2DR | -9 / - | 3 | Partial capture |
| 10-14 19:42 | 40m | - / - | PD9OH | -2 / - | 3 | Partial capture |
| 10-14 19:42 | 40m | - / - | PH2M | +2 / - | 3 | Partial capture |
| 10-14 19:39 | 40m | - / - | F4BYA | +10 / - | 4 | Partial capture |
| 10-14 19:38 | 40m | - / - | SV1MOZ | -16 / - | 2 | Partial capture |
| 10-14 19:30 | 40m | - / -15 | RA6AR | -9 / - | 3 | ✓ Closing fragment |
| 10-14 19:28 | 40m | - / - | F4BYA | +2 / - | 4 | Partial capture |
| 10-14 19:27 | 40m | - / -16 | DL1DXX | +2 / - | 12 | Partial capture |
| 10-14 19:27 | 40m | - / - | PD9OH | +6 / - | 2 | Partial capture |
| 10-14 19:20 | 40m | - / -16 | IZ0COC | +10 / - | 3 | ✓ Closing fragment |
| 10-14 19:18 | 40m | - / -4 | DK7ZT | -4 / - | 4 | Partial capture |
| 10-14 19:18 | 40m | -15 / -17 | IK0HBN | +7 / - | 4 | ✓ Closing observed |
| 10-14 19:17 | 40m | - / -10 | DM5KM | +17 / - | 6 | ✓ Closing fragment |
| 10-12 22:48 | 160m | - / -13 | DK7ZT | +14 / - | 5 | Partial capture |
| 10-12 22:47 | 80m | - / - | RY7F | -6 / - | 5 | Partial capture |
| 10-12 22:46 | 80m | - / - | RA3ZDU | -2 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 203015 -11 2594 UA9YBF EA2DR IN83 (x2) 203100 -8 2724 CQ UA9YBF NO03 a1 203115 -9 2593 UA9YBF EA2DR IN83 203200 -10 2723 CQ UA9YBF NO03 203300 -8 2724 DH0BRO UA9YBF RR73 (x2) 203600 -7 2724 EA2DR UA9YBF R-24 (x2) 203730 -8 2723 CQ UA9YBF NO03 203800 -7 2723 OM0RX UA9YBF -14 (x2) 203900 -6 2723 CQ UA9YBF NO03 a1 (x2) 204145 -3 2723 HF50HSP UA9YBF NO03
UTC dB Audio Message 224815 +12 824 UA9YBF DK7ZT -13 (x5)
UTC dB Audio Message 224630 -4 947 CQ UA9YBF NO03 224645 -1 946 UA9YBF RA3ZDU KO90 224700 -17 697 CQ UA9YBF NO03 (x2) 224745 -6 2067 UA9YBF RY7F LN04 224745 -2 699 UA9YBF RA3ZDU KO90 224815 -8 2067 UA9YBF RY7F LN04 (x4)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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