AA8CH — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving AA8CH, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-19 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 22 FT8 messages attributed to AA8CH as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (91%), followed by 160 m (9%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-09-18 23:37 UTC
Observed FT8 message patterns
- Attributed sample
- 22 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -20 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 15.
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 AA8CH in decoded directed-looking exchanges:
Most frequent locator attributed to AA8CH
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
- FN65 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 6,256 km (approx.)
- Last such locator decoded
- 2026-09-02 00:16 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 | AA8CH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-21 23:30 | 160m | - / - | OH6Z | -20 / - | 2 | Partial capture |
| 09-21 23:26 | 160m | - / - | LA9JKA | -16 / - | 2 | Partial capture |
| 09-18 23:40 | 160m | - / - | OM2WQ | +10 / - | 2 | Partial capture |
| 09-18 23:36 | 160m | -20 / - | RI1FJZ | - / -15 | 2 | Partial capture |
| 09-16 23:57 | 160m | - / -10 | GI4SNA | -6 / - | 4 | Partial capture |
| 09-16 23:57 | 160m | - / - | OK1DXR | +5 / - | 9 | Partial capture |
| 09-02 00:21 | 80m | - / - | DO9BAU | +9 / - | 11 | Partial capture |
| 09-02 00:21 | 80m | - / - | IK5CHL | +4 / - | 3 | Partial capture |
| 09-02 00:20 | 80m | - / - | 9A4ZM | +10 / - | 2 | Partial capture |
| 09-02 00:20 | 80m | - / +6 | DK7ZT | +4 / - | 5 | Partial capture |
| 09-02 00:20 | 80m | - / - | IW9FRA | -10 / - | 9 | Partial capture |
| 09-02 00:17 | 80m | - / - | IK5CHL | 0 / - | 2 | Partial capture |
| 09-02 00:15 | 80m | -1 / -10 | RI1FJL | -20 / -19 | 11 | ✓ Full exchange observed |
| 08-16 23:30 | 80m | - / - | SP7NC | +6 / - | 2 | Partial capture |
| 08-16 23:29 | 80m | - / - | RN6HK | +3 / - | 2 | Partial capture |
| 08-16 23:29 | 80m | - / -3 | SQ9DJQ | +15 / - | 5 | Partial capture |
| 08-16 23:29 | 80m | - / - | UA4FKT | +4 / - | 2 | Partial capture |
| 08-16 23:29 | 80m | - / - | UT7UA | +8 / - | 6 | Partial capture |
| 08-16 23:28 | 80m | -18 / - | A93MO | - / -15 | 2 | ✓ Closing fragment |
| 08-12 00:08 | 80m | - / - | SV8JE | +3 / - | 2 | Partial capture |
| 08-12 00:08 | 80m | - / - | HB9HRR | -4 / - | 3 | Partial capture |
| 08-12 00:07 | 80m | - / - | 9A5E | +12 / - | 3 | Partial capture |
| 08-12 00:05 | 80m | - / - | DO5UH/P | +15 / - | 6 | Partial capture |
| 08-12 00:04 | 80m | +3 / -8 | OD5XX | -12 / +5 | 7 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 235900 +0 1921 AA8CH GI4SNA -10 235930 +5 1295 AA8CH OK1DXR JO60 (x5) 233645 -20 2172 RI1FJZ AA8CH -15 (x2) 234030 +9 1916 AA8CH OM2WQ JN88 (x2) 232600 -17 2101 AA8CH UA6JQ -17 232630 -19 1653 AA8CH LA9JKA JP32 (x2) 233000 -21 1593 AA8CH OH6Z KP13 (x2)
UTC dB Audio Message 002230 +3 1954 AA8CH IK5CHL JN53 002230 +8 2402 AA8CH DO9BAU JO62 002230 +7 1116 AA8CH DK7ZT +06 002300 -9 1370 AA8CH IW9FRA JM68 002300 +7 2402 AA8CH DO9BAU JO62 002330 -9 1370 AA8CH IW9FRA JM68 002330 +6 2402 AA8CH DO9BAU JO62 002400 -7 1370 AA8CH IW9FRA JM68 002400 +9 2402 AA8CH DO9BAU JO62 002430 -7 1370 AA8CH IW9FRA JM68 002430 +9 2402 AA8CH DO9BAU JO62 (x5)
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.
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