RA4CPA — 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 RA4CPA, decoded by SO8OO in southeastern Poland. 849 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-29.
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 849 FT8 messages attributed to RA4CPA as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (32%), followed by 40 m (32%) and 20 m (29%). Most decodes (98%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-29 13:36 UTC
Observed FT8 message patterns
- Attributed sample
- 849 messages
- Active dates
- 34 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -17 to +1.9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 140, moderate (-15 to -9 dB) 308, strong (≥ -8 dB) 401.
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 RA4CPA 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 RA4CPA
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
- LO38 · 240 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,879 km (approx.)
- Last such locator decoded
- 2026-10-28 19:22 UTC
Other locator fields attributed to this token: LO31 (145).
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 | RA4CPA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 12:02 | 40m | - / +8 | R2SL | -7 / - | 2 | ✓ Closing fragment |
| 10-30 22:12 | 80m | - / - | G4FHL | -6 / - | 2 | Partial capture |
| 10-29 13:35 | 40m | -4 / - | R8UT | - / -11 | 2 | ✓ Closing fragment |
| 10-23 17:03 | 80m | -3 / -12 | RZ0SW | -16 / - | 3 | ✓ Closing observed |
| 10-23 17:01 | 80m | -2 / - | R8AEZ | - / - | 4 | Partial capture |
| 10-23 17:00 | 80m | -9 / - | R6FFE | - / -8 | 2 | ✓ Closing fragment |
| 10-23 16:52 | 40m | - / - | EA3HMM | -3 / - | 2 | Partial capture |
| 10-23 15:16 | 80m | -9 / -12 | DO7RMA | -9 / -18 | 4 | ✓ Full exchange observed |
| 10-23 15:10 | 40m | -8 / - | RV9WJP | - / -14 | 2 | ✓ Closing fragment |
| 10-23 15:09 | 40m | - / - | OK1FRG | +8 / - | 6 | Partial capture |
| 10-23 15:07 | 40m | -10 / - | BH8PYF | - / - | 2 | Partial capture |
| 10-23 15:04 | 40m | -11 / - | IW9HMQ | - / - | 4 | Partial capture |
| 10-23 15:02 | 40m | -10 / - | R6ADH | - / -12 | 2 | ✓ Closing fragment |
| 10-23 14:50 | 40m | -7 / 0 | R6FGF | -24 / -1 | 3 | ✓ Full exchange observed |
| 10-23 14:46 | 40m | -7 / -2 | YO4FPF | +3 / -1 | 5 | ✓ Full exchange observed |
| 10-23 14:45 | 40m | -10 / -7 | IN3KSO | -4 / - | 4 | ✓ Closing observed |
| 10-23 14:42 | 40m | - / -9 | YO4DW | -1 / - | 2 | ✓ Closing fragment |
| 10-23 14:36 | 40m | - / -5 | LZ2WP | +2 / - | 6 | ✓ Closing fragment |
| 10-23 14:29 | 40m | -12 / - | R9FGJ | - / -9 | 2 | ✓ Closing fragment |
| 10-23 14:28 | 40m | -12 / - | UN7FBW | - / - | 3 | Partial capture |
| 10-23 14:25 | 40m | -10 / - | R9FDI | - / - | 2 | ✓ Closing fragment |
| 10-23 14:17 | 40m | -15 / - | RW9MZ | - / -3 | 3 | ✓ Closing fragment |
| 10-23 14:15 | 40m | -14 / -6 | SP5ROM | -7 / -9 | 4 | ✓ Full exchange observed |
| 10-23 14:13 | 40m | -18 / - | BI3AMG | - / -15 | 3 | ✓ Closing fragment |
| 10-23 14:11 | 40m | -17 / - | R0UT | - / -7 | 2 | ✓ Closing fragment |
| 10-23 14:10 | 40m | -16 / - | BG2MGR | - / -10 | 2 | ✓ Closing fragment |
| 10-23 14:09 | 40m | -13 / - | RG8G | - / +1 | 3 | ✓ Closing fragment |
| 10-23 14:08 | 40m | -11 / - | BH4LOT | - / -18 | 2 | ✓ Closing fragment |
| 10-23 14:07 | 40m | -14 / - | HL5BMX | - / -13 | 2 | ✓ Closing fragment |
| 10-23 14:06 | 40m | - / -1 | UF8C | -2 / - | 3 | Partial capture |
| 10-23 14:04 | 40m | - / -8 | DL2USR | -2 / - | 2 | ✓ Closing fragment |
| 10-17 17:01 | 80m | -15 / - | YL3PK | - / - | 10 | Partial capture |
| 10-17 16:59 | 80m | - / - | RA3WY | -14 / - | 2 | Partial capture |
| 10-17 16:54 | 40m | -13 / - | DL2NBJ | - / - | 2 | Partial capture |
| 10-17 16:53 | 40m | - / -4 | R1BMZ | +1 / - | 7 | ✓ Closing fragment |
| 10-17 16:51 | 40m | -13 / - | BA7SAY | - / -22 | 3 | ✓ Closing fragment |
| 10-17 16:50 | 40m | -13 / +2 | R2EN | -1 / - | 4 | ✓ Closing observed |
| 10-17 16:38 | 40m | -6 / - | UA9LKL | - / -12 | 2 | ✓ Closing fragment |
| 10-17 16:37 | 40m | -11 / +3 | RG3M | -6 / -14 | 4 | ✓ Full exchange observed |
| 10-17 16:37 | 40m | -8 / -12 | DJ9MA | -12 / -13 | 7 | ✓ Full exchange observed |
| 10-17 16:33 | 40m | -9 / - | YO3GJE | - / - | 3 | Partial capture |
| 10-17 16:31 | 40m | -10 / - | SQ8V | - / - | 2 | Partial capture |
| 10-17 16:27 | 40m | - / -3 | RD3FY | -5 / - | 4 | ✓ Closing fragment |
| 10-14 17:50 | 160m | -22 / - | R2DRE | - / -5 | 3 | Partial capture |
| 10-14 17:38 | 80m | -8 / - | RA3RPW | - / -7 | 2 | ✓ Closing fragment |
| 10-14 17:36 | 80m | -14 / - | RT3G | -3 / 0 | 3 | ✓ Closing observed |
| 10-14 17:30 | 80m | -15 / -11 | S52D | +8 / -9 | 7 | ✓ Full exchange observed |
| 10-14 17:30 | 80m | -14 / -7 | RA9HO | -20 / -14 | 3 | ✓ Full exchange observed |
| 10-14 17:29 | 80m | -12 / -1 | UA6LQZ | -9 / -7 | 3 | ✓ Full exchange observed |
| 10-14 17:26 | 80m | -12 / -11 | YU5DR | -6 / -20 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 151015 +4 2931 RA4CPA OK1FRG JN79 151030 -6 1740 RV9WJP RA4CPA -14 151045 +13 2931 RA4CPA OK1FRG JN79 151100 -10 1740 RV9WJP RA4CPA RR73 151115 +7 2931 RA4CPA OK1FRG JN79 (x2) 151200 -12 1740 EP2AES RA4CPA LO38 151215 +12 2931 RA4CPA OK1FRG JN79 151500 -13 1739 EP2AES RA4CPA LO38 165200 -2 274 RA4CPA EA3HMM JN00 (x2) 133545 -6 517 R8UT RA4CPA R-11 (x2) 120230 -8 2562 RA4CPA R2SL +08 (x2)
UTC dB Audio Message 165900 -6 1703 CQ RA4CPA LO38 (x2) 170000 -11 1702 R6FFE RA4CPA -08 170015 -17 775 RA4CPA OD5ZZ -10 170030 -7 1703 R6FFE RA4CPA RR73 170130 -3 1703 R8AEZ RA4CPA LO38 (x4) 170330 -3 1703 RZ0SW RA4CPA LO38 170345 -14 1284 RA4CPA RZ0SW -12 (x2) 192230 +5 1703 YU7AS RA4CPA LO38 221200 -11 1173 RA4CPA G4FHL IO94 (x2)
UTC dB Audio Message 182715 -5 2566 RA4CPA OZ2LIN JO46 (x4) 183045 -14 1474 RA4CPA UA4FKT LO23 (x3) 183145 -18 1872 RA4CPA RW3DW KO84 183215 -13 1474 RA4CPA UA4FKT 73 183215 -16 1872 RA4CPA RW3DW KO84 (x2) 175030 -23 1702 R2DRE RA4CPA R-05 (x3) 152300 -22 2033 RA4CPA RL9F 73
UTC dB Audio Message 144900 -13 1582 2E1HAT RA4CPA LO38 (x2) 145030 -12 1581 CQ RA4CPA LO38 145115 -2 1491 RA4CPA G1LQT -10 (x3) 130215 -9 1580 HA1BF RA4CPA LO38 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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