CU2AP — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving CU2AP, decoded by SO8OO in southeastern Poland. 600 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-29.
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 600 FT8 messages attributed to CU2AP as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (41%), followed by 20 m (38%) and 40 m (19%). Most decodes (59%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11.5 dB.
Overview
Bands
Last attributed message: 2026-08-29 22:21 UTC
Observed FT8 message patterns
- Attributed sample
- 600 messages
- Active dates
- 22 UTC dates
- Estimated median S/N
- -11.5 dB
- Estimated 10th-90th percentile
- -19 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 148, moderate (-15 to -9 dB) 240, strong (≥ -8 dB) 212.
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 CU2AP 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 CU2AP
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
- HM77 · 78 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,932 km (approx.)
- Last such locator decoded
- 2026-08-29 21:41 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 | CU2AP S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 22:20 | 20m | -18 / - | PD0SF | - / +1 | 3 | Partial capture |
| 08-29 22:17 | 20m | -12 / - | F4MID | - / -15 | 2 | ✓ Closing fragment |
| 08-29 22:16 | 20m | -11 / - | PD0SF | - / -17 | 2 | Partial capture |
| 08-29 22:11 | 20m | -10 / - | IW5ALZ | - / +9 | 2 | ✓ Closing fragment |
| 08-29 21:44 | 20m | -11 / - | JH6ETS | - / -25 | 3 | Partial capture |
| 08-29 21:39 | 20m | -16 / - | PD5RM | - / -22 | 2 | Partial capture |
| 08-29 21:38 | 20m | -12 / - | G4XWR | - / - | 2 | ✓ Closing fragment |
| 08-29 21:28 | 20m | -13 / - | IS0KNY | - / -13 | 2 | ✓ Closing fragment |
| 08-29 21:23 | 20m | -16 / -6 | ZY7F | -15 / - | 2 | ✓ Closing observed |
| 08-29 21:18 | 20m | -12 / - | EA4DFE | - / -18 | 2 | ✓ Closing fragment |
| 08-28 11:05 | 10m | -18 / - | BG4UVR | - / -12 | 3 | ✓ Closing fragment |
| 08-28 11:03 | 10m | -18 / - | BI4VIP | - / -20 | 3 | Partial capture |
| 08-28 11:02 | 10m | -18 / - | JA1OVD | - / -13 | 2 | ✓ Closing fragment |
| 08-28 11:01 | 10m | -22 / - | JL1RUC | - / -12 | 2 | ✓ Closing fragment |
| 08-28 10:59 | 10m | -22 / - | BI4VIP | - / -20 | 2 | Partial capture |
| 08-28 10:57 | 10m | -15 / - | JI2TKX | - / -10 | 4 | ✓ Closing fragment |
| 08-28 10:56 | 10m | -14 / - | JN1RKE | - / -25 | 2 | Partial capture |
| 08-28 10:55 | 10m | -15 / - | S57MPU | - / -12 | 2 | ✓ Closing fragment |
| 08-28 10:54 | 10m | -11 / - | BD7JNA | - / -24 | 2 | Partial capture |
| 08-28 10:52 | 10m | -12 / - | SP5DAA | - / -20 | 2 | ✓ Closing fragment |
| 08-28 10:51 | 10m | -13 / - | JE3EDJ | - / -11 | 2 | ✓ Closing fragment |
| 08-28 10:48 | 10m | -12 / - | JL1RUC | - / - | 3 | Partial capture |
| 08-28 10:47 | 10m | -10 / - | JH6EFI | - / -25 | 2 | ✓ Closing fragment |
| 08-28 10:46 | 10m | -10 / - | JA2ICB | - / -18 | 3 | ✓ Closing fragment |
| 08-28 10:45 | 10m | -12 / - | JR3IAO | - / - | 2 | ✓ Closing fragment |
| 08-28 10:44 | 10m | -12 / - | JG5RVQ | - / -13 | 2 | ✓ Closing fragment |
| 08-28 10:43 | 10m | -14 / - | JA5WIO | - / -13 | 2 | ✓ Closing fragment |
| 08-28 10:42 | 10m | -13 / - | F5HND | - / +7 | 2 | ✓ Closing fragment |
| 08-28 10:41 | 10m | -12 / - | JR3IAO | - / -24 | 2 | Partial capture |
| 08-28 10:40 | 10m | -9 / - | JA1QJI | - / -15 | 2 | ✓ Closing fragment |
| 08-28 10:38 | 10m | -14 / - | JA1ADU | - / -19 | 2 | Partial capture |
| 08-28 10:36 | 10m | -14 / - | JE6HOG | - / -25 | 3 | Partial capture |
| 08-28 10:35 | 10m | -14 / - | 9A5CRZ | - / -21 | 2 | ✓ Closing fragment |
| 08-28 10:34 | 10m | -12 / - | JA5CEX | - / -11 | 2 | ✓ Closing fragment |
| 08-28 10:33 | 10m | -13 / - | JH6WHN | - / -18 | 2 | ✓ Closing fragment |
| 08-28 10:32 | 10m | -12 / - | S56GD | - / +5 | 2 | ✓ Closing fragment |
| 08-28 10:28 | 10m | -16 / - | 7M4BEN | - / -25 | 2 | ✓ Closing fragment |
| 08-28 10:27 | 10m | -16 / - | JA2XCR | - / -25 | 2 | ✓ Closing fragment |
| 08-28 10:02 | 10m | -19 / - | DO1DI | - / -20 | 3 | Partial capture |
| 08-28 10:01 | 10m | -20 / - | RW9WJ | - / -7 | 2 | ✓ Closing fragment |
| 08-28 09:59 | 10m | -20 / - | EB1LA | - / -4 | 2 | Partial capture |
| 08-28 09:57 | 10m | -22 / - | RA9CUU | - / -22 | 3 | Partial capture |
| 08-28 09:56 | 10m | -16 / - | JM4WUZ | - / -13 | 2 | ✓ Closing fragment |
| 08-28 09:55 | 10m | -18 / - | IT9FEG | - / -1 | 2 | ✓ Closing fragment |
| 08-28 09:54 | 10m | -17 / - | LZ1BT | - / -24 | 2 | ✓ Closing fragment |
| 08-28 09:43 | 10m | - / 0 | F1PBZ | 0 / - | 2 | ✓ Closing fragment |
| 08-28 09:39 | 10m | -20 / - | 4Z5AY | - / -24 | 2 | Partial capture |
| 08-28 09:38 | 10m | -20 / - | EX8MEM | -24 / +5 | 2 | ✓ Closing observed |
| 08-28 09:32 | 10m | -20 / - | F1JBT | - / -13 | 2 | ✓ Closing fragment |
| 08-28 09:29 | 10m | -14 / - | RW3DDZ | - / -15 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 214430 -10 1155 JH6ETS CU2AP -25 (x2) 214530 -14 1155 M7XEI CU2AP -10 221030 -11 1604 M7HET CU2AP RR73 221115 +1 903 CU2AP SP8SRZ KN09 221130 -10 1604 IW5ALZ CU2AP +09 (x2) 221530 -12 1604 SP2CRY CU2AP -19 221600 -10 1604 PD0SF CU2AP -17 (x2) 221730 -12 1604 F4MID CU2AP -15 (x2) 222000 -24 1605 PD0SF CU2AP +01 (x3)
UTC dB Audio Message 105930 -21 1742 BI4VIP CU2AP -20 (x2) 110030 -14 1742 JI2TKX CU2AP RR73 110100 -23 1742 JL1RUC CU2AP R-12 (x2) 110200 -19 1742 JA1OVD CU2AP -13 (x2) 110300 -23 1742 BI4VIP CU2AP -20 (x3) 110430 -17 1742 CQ CU2AP HM77 110500 -19 1742 BG4UVR CU2AP -12 (x3) 110930 -20 1742 DL4JTH CU2AP RR73
UTC dB Audio Message 224715 -11 1389 PV8AJ CU2AP RR73 224815 -12 1389 EA8DNB CU2AP RR73 224930 -15 1389 PI4DX CU2AP +19 (x2) 225045 -10 1016 CU2AP PI4DX R+17 225100 -15 1389 PI4DX CU2AP RR73 225115 +2 1017 CU2AP PI4DX 73 205230 -3 1466 VJ6X CU2AP HM77 (x3) 205415 +8 2631 CU2AP DL1JHR JO60 205430 -3 1466 DL1JHR CU2AP -09 205445 +15 2631 CU2AP DL1JHR R-15 205500 -2 1466 DL1JHR CU2AP RR73 205515 +12 2631 CU2AP DL1JHR 73
UTC dB Audio Message 223245 -15 610 RI1FJL CU2AP HM77 (x9)
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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