AC5UV — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving AC5UV, decoded by SO8OO in southeastern Poland. 40 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-08-27.
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 40 FT8 messages attributed to AC5UV as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 40 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -18 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 18.
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 AC5UV in decoded directed-looking exchanges:
Most frequent locator attributed to AC5UV
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
- EM12 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 9,050 km (approx.)
- Last such locator decoded
- 2026-08-27 04:50 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 | AC5UV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 05:32 | 20m | - / -13 | IT9CCB | -7 / - | 3 | ✓ Closing fragment |
| 08-29 05:28 | 20m | - / - | IS0KZK | -12 / - | 3 | Partial capture |
| 08-28 06:26 | 20m | - / - | RY7F | -3 / - | 3 | Partial capture |
| 08-28 06:22 | 20m | - / -18 | OK2CNI | +9 / - | 3 | ✓ Closing fragment |
| 08-28 06:18 | 20m | - / -15 | RZ7KR | +17 / - | 3 | ✓ Closing fragment |
| 08-28 06:18 | 20m | - / -15 | F5IXN | +3 / - | 3 | ✓ Closing fragment |
| 08-28 06:09 | 20m | - / - | DL8EAY | -9 / - | 3 | Partial capture |
| 08-28 06:03 | 20m | - / -15 | DL9NO | +9 / - | 3 | ✓ Closing fragment |
| 08-27 06:21 | 20m | - / - | F4BND | -6 / - | 5 | Partial capture |
| 08-27 06:15 | 20m | - / -7 | ON1DGN | -8 / - | 3 | ✓ Closing fragment |
| 08-27 06:11 | 20m | - / - | F5JQF | +4 / - | 2 | Partial capture |
| 08-27 06:09 | 20m | - / -15 | F4EGM | +10 / - | 3 | ✓ Closing fragment |
| 08-27 06:02 | 20m | - / -17 | PD4WAC | +12 / - | 5 | Partial capture |
| 08-27 05:36 | 20m | - / - | RX9ABI | +6 / - | 2 | Partial capture |
| 08-27 05:14 | 20m | -15 / - | F4EGM | - / -20 | 5 | Partial capture |
| 08-27 04:45 | 20m | -9 / - | DL4RBR | - / -12 | 7 | Partial capture |
| 08-27 04:42 | 20m | -6 / -15 | EA5HM | 0 / +1 | 7 | ✓ Full exchange observed |
| 08-27 04:42 | 20m | - / - | R6TA | +9 / - | 5 | Partial capture |
| 08-27 04:41 | 20m | -7 / - | HF5A | - / -6 | 2 | ✓ Closing fragment |
| 08-27 04:38 | 20m | -6 / -16 | RC6OG | -4 / +10 | 5 | ✓ Full exchange observed |
| 08-27 04:36 | 20m | -8 / - | IK2ZJR | - / -2 | 2 | ✓ Closing fragment |
| 08-27 04:36 | 20m | -8 / -22 | RA3FY | +15 / +7 | 7 | ✓ Full exchange observed |
| 08-27 04:35 | 20m | - / - | RK9UE | +3 / - | 3 | Partial capture |
| 08-27 04:35 | 20m | -8 / - | DD6WF | - / -1 | 2 | ✓ Closing fragment |
| 08-25 05:54 | 20m | - / -2 | F5SG | -11 / - | 4 | Partial capture |
| 08-25 05:53 | 20m | - / - | F5JQF | +2 / - | 4 | Partial capture |
| 08-25 05:33 | 20m | - / -9 | IT9HZC | 0 / - | 5 | ✓ Closing fragment |
| 08-25 05:30 | 20m | - / -12 | IT9CCB | +6 / - | 3 | ✓ Closing fragment |
| 08-25 05:24 | 20m | - / - | RZ2A | -14 / - | 4 | ✓ Closing fragment |
| 08-25 05:23 | 20m | - / -10 | UA3RAU | -2 / - | 2 | ✓ Closing fragment |
| 08-25 05:10 | 20m | - / -15 | M7LYG | -12 / - | 4 | Partial capture |
| 08-25 04:58 | 20m | -14 / - | EA4IDN | -17 / +1 | 3 | ✓ Closing observed |
| 08-25 04:55 | 20m | - / -20 | EA3IZF | -19 / - | 4 | ✓ Closing fragment |
| 08-23 06:57 | 20m | - / - | M7FCX | -15 / - | 2 | Partial capture |
| 08-23 06:52 | 20m | - / -9 | F4AYI | -2 / - | 2 | ✓ Closing fragment |
| 08-23 06:15 | 20m | - / - | EA5ERA | +2 / - | 2 | Partial capture |
| 08-23 06:06 | 20m | - / -12 | EA4GG | +2 / - | 4 | ✓ Closing fragment |
| 08-23 06:04 | 20m | - / - | IT9JWH | +6 / - | 4 | Partial capture |
| 08-23 06:01 | 20m | - / - | EA1FQC | +4 / - | 3 | Partial capture |
| 08-22 06:20 | 20m | - / -21 | CT3MD | -4 / - | 4 | Partial capture |
| 07-25 07:14 | 20m | - / -13 | PI4DX | -16 / - | 2 | Partial capture |
| 07-25 05:56 | 20m | - / -18 | R2SN | -14 / - | 3 | ✓ Closing fragment |
| 07-25 05:56 | 20m | - / - | F5JQF | +3 / - | 11 | Partial capture |
| 07-25 05:49 | 20m | - / -13 | DL3OCF | -8 / - | 2 | Partial capture |
| 07-23 22:42 | 20m | - / -15 | EA4DM | -6 / - | 2 | Partial capture |
| 07-23 05:32 | 20m | - / - | LZ3BS | +2 / - | 3 | ✓ Closing fragment |
| 07-20 06:06 | 20m | - / -10 | W3FOX | -12 / - | 2 | ✓ Closing fragment |
| 07-20 05:59 | 20m | - / - | DK8IZ | -12 / - | 2 | Partial capture |
| 07-20 05:57 | 20m | - / +6 | F6DZU | -2 / - | 2 | ✓ Closing fragment |
| 07-20 05:40 | 20m | - / -9 | DG3BZ | -10 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 062000 +17 632 AC5UV RZ7KR RR73 062200 +7 2455 AC5UV OK2CNI JN79 (x3) 062630 -2 1830 AC5UV RY7F LN04 (x3) 044445 -12 585 AC5UV EC3A -15 045645 -16 1183 AC5UV ZL2KR RR73 052845 -11 2460 AC5UV IS0KZK JM49 (x3) 053215 -10 2459 AC5UV IT9CCB JM76 (x3)
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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