AA1AC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving AA1AC, decoded by SO8OO in southeastern Poland. 34 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-09-16.
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 AA1AC as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 34 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -15 to -10 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 1.
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 AA1AC in decoded directed-looking exchanges:
Most frequent locator attributed to AA1AC
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
- FN41 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 6,791 km (approx.)
- Last such locator decoded
- 2026-09-16 22:34 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 | AA1AC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-16 22:35 | 40m | -14 / +2 | HB9CNU | -14 / -21 | 4 | ✓ Full exchange observed |
| 09-16 22:33 | 40m | -11 / - | YT1DDL | - / -18 | 3 | ✓ Closing fragment |
| 09-16 22:31 | 40m | -13 / -11 | PA1PXL | -14 / -12 | 5 | ✓ Full exchange observed |
| 09-16 22:28 | 40m | -12 / - | SP9JCN | - / -18 | 2 | ✓ Closing fragment |
| 09-16 22:28 | 40m | -13 / -1 | HB9CNU | -14 / -19 | 7 | Partial capture |
| 09-16 22:27 | 40m | -12 / - | K4WAM | - / - | 2 | ✓ Closing fragment |
| 09-16 22:25 | 40m | -11 / - | UX5UO | - / -9 | 2 | ✓ Closing fragment |
| 09-16 22:24 | 40m | -12 / -16 | DL5YAS | -13 / -4 | 5 | ✓ Full exchange observed |
| 09-13 23:55 | 40m | - / - | PD0IFI | -14 / - | 3 | Partial capture |
| 09-13 23:52 | 40m | -10 / - | SP7NC | - / -7 | 2 | ✓ Closing fragment |
| 09-13 23:51 | 40m | - / - | PD0IFI | -10 / - | 2 | Partial capture |
| 09-05 00:10 | 80m | - / -8 | SM6MUY | +19 / - | 3 | ✓ Closing fragment |
| 09-05 00:09 | 80m | - / - | DO4CNA | +6 / - | 7 | Partial capture |
| 09-05 00:09 | 80m | - / -21 | DK7ZT | -5 / - | 5 | Partial capture |
| 09-04 23:55 | 80m | - / -16 | DL9DX | +2 / - | 4 | ✓ Closing fragment |
| 08-29 22:37 | 40m | -12 / -10 | PD0LH | +2 / -4 | 4 | ✓ Full exchange observed |
| 08-29 22:34 | 40m | - / - | G7LHK | -3 / - | 5 | Partial capture |
| 08-28 20:53 | 20m | - / - | YU5DR | -7 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 223145 -12 2448 PA1PXL AA1AC -12 223200 -15 2447 AA1AC PA1PXL R-11 223215 -14 2448 PA1PXL AA1AC RR73 223230 -15 2448 AA1AC PA1PXL 73 223245 -10 2448 CQ AA1AC FN41 223300 -12 2447 AA1AC HB9CNU JN37 223315 -13 2448 YT1DDL AA1AC -18 (x3) 223445 -13 2448 CQ AA1AC FN41 223515 -14 2448 HB9CNU AA1AC -21 223530 -12 2449 AA1AC HB9CNU R+02 223545 -13 2448 HB9CNU AA1AC RR73 223600 -15 2449 AA1AC HB9CNU 73 223615 -10 2448 EA7BD AA1AC +00
UTC dB Audio Message 000930 +9 435 AA1AC DO4CNA JO44 000930 +11 986 AA1AC DL5PH JO30 000930 -2 1115 AA1AC DK7ZT -21 001000 +19 2765 AA1AC SM6MUY JO67 001000 +5 434 AA1AC DO4CNA JO44 001000 -7 1115 AA1AC DK7ZT -21 001030 +18 2765 AA1AC SM6MUY R-08 001030 +5 434 AA1AC DO4CNA JO44 001030 -7 1115 AA1AC DK7ZT -21 001100 +19 2765 AA1AC SM6MUY 73 001100 +8 435 AA1AC DO4CNA JO44 001100 -6 1115 AA1AC DK7ZT -21 001130 +4 434 AA1AC DO4CNA JO44 (x3)
UTC dB Audio Message 205300 -8 1615 AA1AC YU5DR KN04 (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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee