R4CBT — 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 R4CBT, decoded by SO8OO in southeastern Poland. 91 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 12 UTC dates in the available aggregate history. Observed between 2026-07-11 and 2026-11-05.
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 91 FT8 messages attributed to R4CBT as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (58%), followed by 40 m (37%) and 10 m (4%). Most decodes (84%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-11-05 16:29 UTC
Observed FT8 message patterns
- Attributed sample
- 91 messages
- Active dates
- 12 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -21 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 25, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 44.
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 R4CBT 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 R4CBT
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
- LO22 · 5 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,634 km (approx.)
- Last such locator decoded
- 2026-07-20 17:13 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 | R4CBT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 16:29 | 40m | - / -10 | R1AV | -18 / - | 4 | Partial capture |
| 11-05 16:28 | 40m | - / +7 | UA3SCU | -8 / - | 2 | ✓ Closing fragment |
| 11-05 16:27 | 40m | -15 / -2 | RD3FY | -2 / - | 4 | ✓ Closing observed |
| 11-04 05:33 | 40m | - / - | 9A5CW | +2 / - | 6 | Partial capture |
| 11-04 05:30 | 40m | -10 / +4 | R4ADJ | -18 / -4 | 3 | ✓ Full exchange observed |
| 11-02 11:36 | 40m | - / - | HA3HZ | -16 / - | 2 | Partial capture |
| 10-29 04:11 | 40m | -11 / - | EA1CUB | - / -14 | 2 | ✓ Closing fragment |
| 10-29 04:05 | 40m | -15 / -6 | 5B4AMX | -14 / - | 3 | ✓ Closing observed |
| 10-29 04:05 | 40m | -8 / -7 | P4/WE9V | +1 / -1 | 2 | Partial capture |
| 10-28 13:13 | 40m | -13 / +2 | RU3G | -16 / +3 | 3 | ✓ Full exchange observed |
| 10-28 04:31 | 40m | -20 / - | RA9ACA | - / -8 | 2 | ✓ Closing fragment |
| 10-27 16:58 | 40m | -14 / - | BI1AFK | - / -9 | 2 | ✓ Closing fragment |
| 10-27 16:57 | 40m | - / -5 | R6DJR | 0 / - | 2 | Partial capture |
| 10-27 16:56 | 40m | -1 / -21 | UA1ZFL | -9 / - | 2 | ✓ Closing observed |
| 10-27 16:55 | 40m | - / - | R6DVV | -13 / - | 2 | Partial capture |
| 10-27 16:53 | 40m | +4 / - | UA0LQE | - / -15 | 2 | ✓ Closing fragment |
| 10-27 16:52 | 40m | +2 / - | R8AU | -5 / -6 | 3 | ✓ Closing observed |
| 10-27 14:33 | 40m | - / - | 9A4ZM | -6 / - | 2 | Partial capture |
| 10-27 14:32 | 40m | -16 / - | BI3UPU | - / -11 | 2 | ✓ Closing fragment |
| 10-27 14:32 | 40m | - / - | DH2NJS | -6 / - | 7 | Partial capture |
| 10-27 14:31 | 40m | -14 / - | R6YG | - / -6 | 2 | ✓ Closing fragment |
| 10-27 14:30 | 40m | -15 / -3 | R2AL | +2 / -12 | 5 | ✓ Full exchange observed |
| 10-27 14:15 | 40m | - / - | RU3OH | -8 / - | 4 | Partial capture |
| 10-27 14:14 | 40m | -16 / -2 | RA6OD | -12 / -7 | 2 | Partial capture |
| 08-31 16:17 | 20m | -4 / - | MW7HZQ | - / -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 053530 +3 825 R4CBT 9A5CW JN65 (x2) 162015 -17 2244 JH1CTV R4CBT -14 162645 -15 1400 R9SAP R4CBT RR73 162700 +0 3012 R4CBT RD3FY KO85 (x2) 162745 -15 1399 RD3FY R4CBT RR73 162800 -2 3012 R4CBT RD3FY 73 162830 -13 1067 R4CBT UA3SCU +07 (x2) 162930 -18 1398 R4CBT R1AV KP50 162945 -16 1398 R9FE R4CBT -05 163000 -19 1399 R4CBT R1AV KP50 (x3)
UTC dB Audio Message 161745 -6 784 MW7HZQ R4CBT -15 (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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