AC9C — 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 AC9C, decoded by SO8OO in southeastern Poland. 144 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-10-21.
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 144 FT8 messages attributed to AC9C as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (84%), followed by 20 m (16%). 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 moderate S/N range (65%); the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-21 04:18 UTC
Observed FT8 message patterns
- Attributed sample
- 144 messages
- Active dates
- 14 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -12 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 94, strong (≥ -8 dB) 49.
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 AC9C in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to AC9C
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
- EM74 · 58 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,198 km (approx.)
- Last such locator decoded
- 2026-10-20 03:36 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 | AC9C S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 04:04 | 40m | - / -7 | F5MNW | +6 / - | 4 | ✓ Closing fragment |
| 10-21 04:03 | 40m | - / -10 | TA1EVR | -12 / - | 2 | Partial capture |
| 10-21 03:56 | 40m | - / -7 | GJ0KYZ | -5 / - | 2 | ✓ Closing fragment |
| 10-20 15:57 | 10m | - / -25 | CN8NS | -14 / - | 5 | Partial capture |
| 10-20 03:51 | 40m | - / -18 | RA4FP | -1 / - | 6 | Partial capture |
| 10-20 03:44 | 40m | - / -9 | M9DNC | -14 / - | 2 | Partial capture |
| 10-20 03:37 | 40m | - / - | HB9TIH | +10 / - | 5 | Partial capture |
| 10-20 03:33 | 40m | - / - | SV2CWV | -2 / - | 4 | Partial capture |
| 10-20 03:32 | 40m | - / -4 | SV1FJF | -3 / - | 2 | ✓ Closing fragment |
| 10-20 01:36 | 40m | - / - | EA8DGI | -18 / - | 2 | Partial capture |
| 10-20 01:21 | 40m | - / -6 | EX7CQ | -5 / - | 2 | ✓ Closing fragment |
| 10-20 01:19 | 40m | -13 / +1 | TF4M | -20 / - | 2 | Partial capture |
| 10-19 13:19 | 10m | - / -12 | CN8WK | +12 / - | 3 | ✓ Closing fragment |
| 10-19 04:04 | 40m | - / - | DL1GLO | -15 / - | 2 | Partial capture |
| 10-19 03:57 | 40m | - / - | RA6OF | -17 / - | 2 | Partial capture |
| 10-19 03:56 | 40m | - / -21 | 4X5MZ | +4 / - | 5 | ✓ Closing fragment |
| 10-19 03:53 | 40m | - / -15 | R6NA | +7 / - | 3 | ✓ Closing fragment |
| 10-19 03:52 | 40m | - / - | SV1MOZ | -5 / - | 2 | Partial capture |
| 10-19 03:51 | 40m | - / -1 | LZ2IP | -10 / - | 2 | ✓ Closing fragment |
| 10-19 03:45 | 40m | -10 / -17 | RW9WT | -3 / -14 | 8 | ✓ Full exchange observed |
| 10-19 03:44 | 40m | - / -9 | F1PBZ | +4 / - | 2 | ✓ Closing fragment |
| 10-19 03:43 | 40m | - / -14 | RK6A | -4 / - | 2 | ✓ Closing fragment |
| 10-19 03:37 | 40m | -9 / - | 7X4BL | - / - | 3 | Partial capture |
| 10-19 03:30 | 40m | - / - | G6PWS | -12 / - | 8 | Partial capture |
| 10-19 03:30 | 40m | - / - | UA4FKT | +8 / - | 3 | Partial capture |
| 10-19 03:21 | 40m | - / - | PD0DDA | -1 / - | 8 | Partial capture |
| 10-19 03:18 | 40m | - / -9 | IU7FQK | 0 / - | 4 | ✓ Closing fragment |
| 10-19 03:16 | 40m | - / - | UR4QFP | +9 / - | 4 | Partial capture |
| 10-18 15:19 | 10m | - / -14 | CT2HEX | -10 / - | 5 | ✓ Closing fragment |
| 10-16 02:47 | 40m | - / -15 | GW0SGL | -16 / - | 8 | ✓ Closing fragment |
| 10-16 02:46 | 40m | - / - | DL1EBW | -16 / - | 2 | Partial capture |
| 10-16 02:41 | 40m | - / -13 | IZ8EYN | -8 / - | 5 | Partial capture |
| 10-16 02:41 | 40m | - / - | TA2EE | -13 / - | 5 | Partial capture |
| 10-16 02:36 | 40m | - / - | F4EWK | 0 / - | 2 | ✓ Closing fragment |
| 09-27 06:05 | 40m | - / -12 | G4GVB | -10 / - | 3 | ✓ Closing fragment |
| 09-26 07:55 | 40m | - / - | M9OOS | -9 / - | 2 | ✓ Closing fragment |
| 09-26 07:21 | 40m | - / -14 | PA3T | -6 / - | 4 | ✓ Closing fragment |
| 09-26 07:17 | 40m | - / - | IK1JUS | -10 / - | 6 | Partial capture |
| 09-26 07:17 | 40m | - / -13 | PA3CPS | -7 / - | 3 | ✓ Closing fragment |
| 09-26 07:12 | 40m | - / - | F4ENR | -8 / - | 4 | Partial capture |
| 09-26 07:12 | 40m | - / -2 | DA1ST | -6 / - | 2 | ✓ Closing fragment |
| 09-26 07:08 | 40m | - / - | F4ENR | -10 / - | 2 | Partial capture |
| 09-26 02:24 | 40m | - / - | IK0QDM | -13 / - | 3 | ✓ Closing fragment |
| 09-25 03:51 | 40m | - / -3 | F5NBU | -8 / - | 3 | ✓ Closing fragment |
| 09-25 03:44 | 40m | - / +1 | F4MXT/P | +4 / - | 2 | Partial capture |
| 09-25 02:20 | 40m | -10 / -20 | A99AA | -7 / -14 | 4 | ✓ Full exchange observed |
| 09-24 02:51 | 40m | - / - | UB4FGK | -8 / - | 2 | Partial capture |
| 09-22 01:07 | 40m | -10 / - | ER3PM | - / - | 4 | ✓ Closing fragment |
| 09-18 02:47 | 40m | -12 / -4 | 9K2WA | -4 / - | 3 | Partial capture |
| 09-17 03:28 | 40m | - / -19 | RA6ATZ | -4 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 035245 -4 232 AC9C RA4FP -17 (x4) 035630 -4 756 AC9C GJ0KYZ -07 (x2) 040300 -12 393 AC9C TA1EVR -10 (x2) 040400 +6 474 AC9C F5MNW JN33 (x4) 041600 -10 393 AC9C F6FHZ JN18 041700 -17 1038 AC9C IX1HPN JN35 041845 -9 393 IU0UZP AC9C -15
UTC dB Audio Message 151830 -16 2495 AC9C CR7BUW IM58 133630 -6 456 AC9C F6BIA R-15 151900 -19 2047 AC9C CT2HEX IM58 (x5) 131945 +11 2471 AC9C CN8WK -12 (x3) 155745 -15 2268 AC9C CN8NS -25 (x5)
UTC dB Audio Message 235330 -5 1779 AC9C 5B4AMX -07 (x2) 004330 +15 2250 AC9C 9K2GR -03 (x2) 025345 -12 1788 AC9C UA9CK -17 (x2)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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