AD4C — 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 AD4C, decoded by SO8OO in southeastern Poland. 34 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-06 and 2026-09-18.
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 34 FT8 messages attributed to AD4C 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 (71%), followed by 80 m (29%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-18 03:28 UTC
Observed FT8 message patterns
- Attributed sample
- 34 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -17 to 0 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 14, 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 AD4C in decoded directed-looking exchanges:
Most frequent locator attributed to AD4C
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
- EL97 · 9 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,549 km (approx.)
- Last such locator decoded
- 2026-09-18 03:21 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 | AD4C S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-12 01:45 | 40m | - / 0 | F4MXT/P | -8 / - | 2 | Partial capture |
| 09-18 03:27 | 40m | -13 / - | DL5AN | - / -6 | 2 | ✓ Closing fragment |
| 09-18 03:21 | 40m | -5 / - | TN8GD | - / -19 | 5 | ✓ Closing fragment |
| 09-18 03:14 | 40m | 0 / - | US1VM | - / -10 | 6 | Partial capture |
| 09-18 03:13 | 40m | - / - | RZ5D | -10 / - | 3 | Partial capture |
| 09-18 03:10 | 40m | -17 / -18 | HZ1TT | -2 / -16 | 7 | ✓ Full exchange observed |
| 09-18 03:10 | 40m | -20 / -12 | R6DZL | +6 / -15 | 3 | ✓ Full exchange observed |
| 09-18 03:08 | 40m | -12 / -13 | RA4ADF | -13 / -16 | 19 | ✓ Full exchange observed |
| 09-18 03:08 | 40m | -16 / - | SP5EXA | - / -5 | 2 | ✓ Closing fragment |
| 09-18 03:05 | 40m | - / - | UA3PHB | -6 / - | 2 | Partial capture |
| 09-18 03:05 | 40m | - / - | UA4FKT | -1 / - | 3 | Partial capture |
| 09-17 03:42 | 40m | - / 0 | EA1AA | -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 031645 -2 2899 US1VM AD4C R-11 (x2) 031730 -15 2296 AD4C RA4ADF -13 (x2) 031815 -13 2297 RA4ADF AD4C R-16 (x2) 032145 -7 440 TN8GD AD4C EL97 (x5) 032745 -15 1491 DL5AN AD4C R-06 (x2) 014530 -6 1134 AD4C F4MXT/P +00 (x2)
UTC dB Audio Message 123245 -1 838 AD4C DD7EE RR73
CW
No CW receptions recorded for this callsign in the last 30 days.
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