AC9A — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving AC9A, decoded by SO8OO in southeastern Poland. 2 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-06-18.
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 2 FT8 messages attributed to AC9A as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.
Overview
Observed FT8 message patterns
- Attributed sample
- 2 messages
- Active dates
- 2 UTC dates
- S/N summary
- Too few decodes
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
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 AC9A in decoded directed-looking exchanges:
Most frequent locator attributed to AC9A
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
- EN63
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,549 km (approx.)
- Last such locator decoded
- 2026-06-18 23:57 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 | AC9A S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 22:58 | 40m | - / -15 | DK7ZT | -16 / - | 2 | Partial capture |
| 09-16 01:58 | 40m | - / - | N4DWD | -8 / - | 5 | Partial capture |
| 09-05 01:43 | 40m | - / -9 | SV5BYP | -9 / - | 2 | ✓ Closing fragment |
| 09-04 01:23 | 80m | - / +7 | K4XP | -20 / - | 2 | ✓ Closing fragment |
| 09-04 01:19 | 80m | - / 0 | KA1ERL | -17 / - | 2 | ✓ Closing fragment |
| 09-04 00:29 | 80m | - / - | SV8JE | +17 / - | 3 | Partial capture |
| 09-03 00:07 | 80m | - / -14 | AA1K | -10 / - | 2 | ✓ Closing fragment |
| 09-02 00:03 | 40m | - / -8 | D44TWO | -12 / - | 2 | ✓ Closing fragment |
| 08-21 21:28 | 20m | - / -15 | HB9TIH | -4 / - | 4 | ✓ Closing fragment |
| 08-11 23:51 | 40m | - / -13 | YO6LM | -10 / - | 2 | Partial capture |
| 08-10 23:58 | 40m | - / -17 | YO6LM | +6 / - | 2 | Partial capture |
| 07-15 22:01 | 20m | - / -16 | UN0GY | -6 / - | 2 | ✓ Closing fragment |
| 07-15 21:49 | 20m | - / -11 | 5B4AMM | -14 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 000130 -24 1590 AC9A G5TV IO93 000315 -12 407 AC9A D44TWO -08 (x2) 014330 -8 2015 AC9A SV5BYP -09 (x2) 015845 -8 642 AC9A N4DWD EM86 (x5) 225730 -23 1391 AC9A W1JGM +00 225830 -15 1907 AC9A DK7ZT -15 (x2) 225930 -17 1479 AC9A DJ0MAB JN49 010930 -22 853 AC9A OH0Z RR73
UTC dB Audio Message 000715 -10 306 AC9A AA1K -14 (x2) 001045 -18 1437 AC9A NM1R RRR 002915 +19 380 AC9A SV8JE KM08 (x3) 011915 -17 286 AC9A KA1ERL +00 (x2) 012345 -20 2235 AC9A K4XP +07 (x2)
UTC dB Audio Message 201300 -8 1197 AC9A EA3FRG JN11 225300 -20 1594 AC9A K2F +06 214900 -13 1848 AC9A 5B4AMM -11 (x2) 220100 -7 2630 AC9A UN0GY -16 (x2) 220330 +4 2978 AC9A YO4NF -17 212800 -4 1661 AC9A HB9TIH JN36 (x4)
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