R4UA — 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 R4UA, decoded by SO8OO in southeastern Poland. 2,416 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 80 UTC dates in the available aggregate history. Observed between 2026-06-07 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 2,416 FT8 messages attributed to R4UA as the transmitting token by decoded message structure across 80 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (71%), followed by 40 m (15%) and 20 m (13%). Most decodes (66%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-10-21 02:29 UTC
Observed FT8 message patterns
- Attributed sample
- 2,416 messages
- Active dates
- 80 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -11.8 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 41, moderate (-15 to -9 dB) 537, strong (≥ -8 dB) 1,838.
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 R4UA 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 R4UA
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
- LO24 · 1,267 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,652 km (approx.)
- Last such locator decoded
- 2026-10-21 02:28 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 | R4UA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 02:28 | 80m | -4 / - | UA6EKC | - / - | 2 | ✓ Closing fragment |
| 10-21 02:25 | 80m | -4 / 0 | RU9W | -12 / +3 | 5 | ✓ Full exchange observed |
| 10-21 01:51 | 80m | - / -2 | IT9VCE | +10 / - | 2 | ✓ Closing fragment |
| 10-21 01:46 | 80m | +2 / - | YO8BJK | - / - | 2 | Partial capture |
| 10-21 01:44 | 80m | +7 / +1 | R3DFU | -24 / -6 | 4 | ✓ Full exchange observed |
| 10-21 01:42 | 80m | +4 / -5 | G3TKT | -21 / -19 | 4 | ✓ Full exchange observed |
| 10-21 01:41 | 80m | +4 / -8 | RW9ULK | -21 / -10 | 4 | ✓ Full exchange observed |
| 10-21 01:37 | 80m | +4 / - | UA9JGS | - / -12 | 2 | Partial capture |
| 10-21 01:36 | 80m | -2 / -3 | PI4DX | -4 / -8 | 4 | ✓ Full exchange observed |
| 10-21 01:28 | 80m | +1 / -1 | PA3FPQ | +8 / -11 | 5 | ✓ Full exchange observed |
| 10-18 03:30 | 80m | -7 / -8 | LA9GX | +16 / -10 | 6 | ✓ Full exchange observed |
| 10-18 03:25 | 80m | -17 / -21 | SM7WNM | -7 / -16 | 3 | ✓ Full exchange observed |
| 10-18 03:23 | 80m | -1 / - | Z31PM | - / - | 2 | Partial capture |
| 10-18 03:20 | 80m | -10 / - | UA3RA | - / +1 | 3 | ✓ Closing fragment |
| 10-18 03:18 | 80m | -8 / - | R2OM | -24 / 0 | 4 | ✓ Closing observed |
| 10-18 03:04 | 80m | -7 / -18 | Z33F | -6 / -11 | 5 | ✓ Full exchange observed |
| 10-18 02:51 | 80m | -8 / +3 | R3RA | -4 / +4 | 4 | ✓ Full exchange observed |
| 10-18 02:28 | 80m | - / -7 | SP4FEU | +17 / - | 3 | Partial capture |
| 10-18 02:25 | 80m | -5 / -4 | HA1SU | +16 / -5 | 8 | ✓ Full exchange observed |
| 10-18 02:23 | 80m | -6 / - | SP4FEU | - / - | 2 | Partial capture |
| 10-18 02:21 | 80m | -6 / -9 | G6PWS | +6 / -15 | 5 | ✓ Full exchange observed |
| 10-18 02:18 | 80m | -5 / - | A65DF | - / -16 | 3 | ✓ Closing fragment |
| 10-18 01:54 | 80m | - / -4 | YU65AEC | -4 / - | 2 | Partial capture |
| 10-18 01:53 | 80m | -9 / - | RD9M/3 | - / -4 | 2 | Partial capture |
| 10-18 01:51 | 80m | +1 / - | R9OX | - / - | 2 | Partial capture |
| 10-18 01:49 | 80m | +4 / -3 | UA3ADE | +5 / 0 | 5 | ✓ Full exchange observed |
| 10-18 01:46 | 80m | +3 / - | UA3UCV | - / - | 3 | Partial capture |
| 10-18 01:44 | 80m | +9 / -11 | 9A4AA | -2 / -15 | 5 | ✓ Full exchange observed |
| 10-18 01:43 | 80m | +10 / - | SV8CKM | - / - | 2 | Partial capture |
| 10-18 01:41 | 80m | +4 / - | DF4WQ | -4 / -14 | 3 | ✓ Closing observed |
| 10-18 01:39 | 80m | 0 / -10 | ON4MAP | -16 / -26 | 6 | ✓ Full exchange observed |
| 10-18 01:36 | 80m | +1 / +3 | HA7JDU | +10 / -3 | 5 | ✓ Full exchange observed |
| 10-18 01:35 | 80m | 0 / - | UK8FCM | - / -10 | 2 | ✓ Closing fragment |
| 10-18 01:34 | 80m | -1 / - | R2BQM | - / -14 | 2 | ✓ Closing fragment |
| 10-18 01:32 | 80m | +2 / +5 | IZ8XXE | 0 / -4 | 4 | ✓ Full exchange observed |
| 10-18 01:29 | 80m | 0 / - | TA4SSK | -23 / -7 | 4 | ✓ Closing observed |
| 10-18 01:24 | 80m | +4 / - | RN9N | -4 / -1 | 5 | ✓ Full exchange observed |
| 10-17 15:47 | 80m | +1 / - | RW9AW | +2 / +7 | 5 | ✓ Full exchange observed |
| 10-17 15:45 | 80m | +2 / -11 | DM5KM | +4 / -10 | 5 | ✓ Full exchange observed |
| 10-17 15:43 | 80m | -3 / -6 | RV6FN | -16 / -4 | 6 | ✓ Full exchange observed |
| 10-17 15:41 | 80m | -4 / - | RG8U | - / -8 | 4 | ✓ Closing fragment |
| 10-17 15:38 | 80m | -6 / 0 | R7AW | -4 / +2 | 4 | ✓ Full exchange observed |
| 10-17 15:36 | 80m | -9 / -15 | UA9LAO | -4 / -12 | 3 | ✓ Full exchange observed |
| 10-17 15:35 | 80m | -9 / - | UN7GDB | - / -11 | 2 | ✓ Closing fragment |
| 10-17 15:33 | 80m | -13 / -3 | RK6OQ | -6 / +2 | 5 | ✓ Full exchange observed |
| 10-17 04:47 | 80m | - / -10 | RA1QEA | -2 / - | 2 | ✓ Closing fragment |
| 10-17 03:24 | 80m | 0 / - | C31KC | - / -17 | 3 | ✓ Closing fragment |
| 10-17 03:21 | 80m | -2 / - | C31KC | - / - | 2 | Partial capture |
| 10-15 02:31 | 80m | -1 / - | R3KKG | -4 / +2 | 5 | ✓ Full exchange observed |
| 10-15 01:38 | 80m | +1 / -17 | DK8HC | -3 / -19 | 6 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 014445 -24 1363 R4UA R3DFU +01 014500 +6 2525 R3DFU R4UA R-06 (x2) 014645 +4 2525 YO8BJK R4UA LO24 (x2) 015130 +14 705 R4UA IT9VCE -02 (x2) 022500 -7 2525 RU9W R4UA LO24 022515 -12 2092 R4UA RU9W +00 022530 -8 2524 RU9W R4UA R+03 (x3) 022830 -5 2525 UA6EKC R4UA LO24 (x2) 024315 -21 868 R4UA RX3DHR +01
UTC dB Audio Message 161145 -11 2482 RD9M/3 R4UA LO24 161215 -10 2481 <R6DOB/M> R4UA LO24 161400 -5 2481 R1OAC R4UA LO24 (x2) 161630 -7 2481 R3BAV R4UA -10 161745 -6 2481 RK3IR R4UA LO24 (x3) 041545 -4 2605 C5R R4UA LO24 (x4) 042500 -14 2631 UC6W R4UA LO24 043200 -21 1249 R4UA R4AFR RR73 043215 -7 2631 R4AFR R4UA 73
UTC dB Audio Message 044515 +12 2627 R6FMF R4UA 73 045030 +5 2627 CE1KR R4UA LO24 045130 +14 2591 R9FAK R4UA LO24 (x3) 050430 +1 2590 CE1KR R4UA LO24 (x2) 050515 -5 742 R4UA CE1KR RR73 050530 +5 2591 CE1KR R4UA 73 050630 +5 2591 TI5RR R4UA LO24 (x2) 105545 +9 2569 R2FDP/P R4UA LO24 (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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