YO8CHF — 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 YO8CHF, decoded by SO8OO in southeastern Poland. 80 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-07-22.
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 80 FT8 messages attributed to YO8CHF as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (91%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 80 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -18 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 39, strong (≥ -8 dB) 25.
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 YO8CHF in decoded directed-looking exchanges:
Most frequent locator attributed to YO8CHF
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
- KN37 · 64 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 468 km (approx.)
- Last such locator decoded
- 2026-07-22 12:39 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 | YO8CHF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-30 15:53 | 20m | - / -14 | JA3KGF | +5 / - | 2 | Partial capture |
| 08-30 15:29 | 20m | - / -10 | 3A2MW | -10 / - | 2 | ✓ Closing fragment |
| 08-30 12:21 | 20m | - / -13 | UB4HVA | -16 / - | 3 | ✓ Closing fragment |
| 08-30 12:00 | 20m | - / -17 | Z31PM | -18 / - | 2 | Partial capture |
| 08-30 11:46 | 20m | - / - | IU1PFA | -15 / - | 4 | Partial capture |
| 08-30 11:39 | 20m | - / -11 | PD3LKN | -10 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 114930 -13 2271 YO8CHF IU1PFA JN44 115330 -8 2350 YO8CHF PD9FLX JO22 120045 -18 2450 YO8CHF Z31PM -17 (x2) 120745 -12 1567 YO8CHF DA1MHH R-11 121915 -8 2056 YO8CHF OH1LA KP01 122115 -16 1714 YO8CHF UB4HVA LO53 (x3) 125015 -6 3016 YO8CHF OZ1SMB JO54 131145 -10 2351 YO8CHF UB4CJS -11 152945 -10 1213 YO8CHF 3A2MW -10 (x2) 155315 +7 326 YO8CHF JA3KGF -14 (x2)
CW
No CW receptions recorded for this callsign in the last 30 days.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee