YB7WW — 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 YB7WW, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-10.
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 64 FT8 messages attributed to YB7WW as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (95%), followed by 20 m (5%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-06-10 13:10 UTC
Observed FT8 message patterns
- Attributed sample
- 64 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -22 to -6 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 17.
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 YB7WW in decoded directed-looking exchanges:
Most frequent locator attributed to YB7WW
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
- OI89 · 16 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 10,423 km (approx.)
- Last such locator decoded
- 2026-06-10 13:10 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 | YB7WW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-31 12:25 | 10m | - / - | CR7BUW | -24 / - | 2 | Partial capture |
| 10-31 12:24 | 10m | - / -11 | CR7BUJ | -10 / - | 2 | ✓ Closing fragment |
| 10-20 09:00 | 10m | - / -16 | CN8WK | 0 / - | 2 | ✓ Closing fragment |
| 08-26 12:47 | 20m | - / - | OH5NBJ | +4 / - | 7 | Partial capture |
| 08-11 12:47 | 20m | - / - | DL1R | -5 / - | 3 | Partial capture |
| 08-11 12:47 | 20m | - / -10 | RW3QW | -6 / - | 2 | ✓ Closing fragment |
| 08-11 12:38 | 20m | - / - | 9A3K | +3 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 090015 -3 1663 YB7WW CN8WK -16 (x2) 122415 -6 1165 YB7WW CR7BUJ -11 (x2) 122515 -24 1593 YB7WW CR7BUW IM58 (x2)
UTC dB Audio Message 123915 +2 2176 YB7WW 9A3K JN65 124715 -1 673 YB7WW RW3QW -10 124715 -4 2674 YB7WW DL1R JN58 124745 -11 674 YB7WW RW3QW RR73 124745 -6 2674 YB7WW DL1R JN58 (x2) 131000 -7 982 YB7WW RD6OZ KN98 124130 -14 409 YB7WW AJ9C RR73 124700 +6 2817 YB7WW OH5NBJ KP41 (x7)
CW
No CW receptions recorded for this callsign in the last 30 days.
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