R2SBI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R2SBI, decoded by SO8OO in southeastern Poland. 463 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-19.
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 463 FT8 messages attributed to R2SBI as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (40%), followed by 80 m (25%) and 40 m (24%). Most decodes (70%) fell within the six-hour window 15:00-21:00 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: 2026-09-19 19:51 UTC
Observed FT8 message patterns
- Attributed sample
- 463 messages
- Active dates
- 24 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -19 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 102, moderate (-15 to -9 dB) 135, strong (≥ -8 dB) 226.
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 R2SBI 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 R2SBI
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
- KO93 · 212 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,246 km (approx.)
- Last such locator decoded
- 2026-09-19 19:50 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 | R2SBI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 19:50 | 80m | -16 / 0 | RA3TVW | -8 / -2 | 5 | Partial capture |
| 09-19 19:50 | 80m | -11 / - | R4ABW | -10 / - | 3 | ✓ Closing observed |
| 09-19 19:48 | 80m | - / -12 | R4HHN | -4 / - | 2 | Partial capture |
| 09-19 19:47 | 80m | - / -5 | RA6OY | -3 / - | 3 | ✓ Closing fragment |
| 09-19 19:37 | 80m | - / - | SP5DFK/QRP | -2 / - | 2 | Partial capture |
| 09-19 15:15 | 80m | -20 / - | EX7CQ | - / -15 | 3 | Partial capture |
| 09-19 15:12 | 80m | -20 / -3 | RC3D | +7 / 0 | 6 | ✓ Full exchange observed |
| 09-19 15:12 | 80m | -20 / -2 | RO1M | -14 / -15 | 4 | ✓ Full exchange observed |
| 09-19 15:10 | 80m | -19 / - | RW9HSB | - / -20 | 2 | ✓ Closing fragment |
| 09-19 15:05 | 40m | -7 / -12 | RA3AJT | +2 / -8 | 3 | ✓ Full exchange observed |
| 09-19 15:00 | 40m | -4 / - | RA4CGX | -2 / - | 6 | ✓ Closing observed |
| 09-19 14:59 | 40m | -11 / - | UA3DPM | +5 / - | 2 | ✓ Closing observed |
| 09-18 19:48 | 40m | -5 / - | IW1CKR | - / -3 | 2 | Partial capture |
| 09-16 18:18 | 80m | - / -18 | YO4NT | 0 / - | 2 | Partial capture |
| 09-15 19:27 | 40m | -24 / -11 | 9A7W | -19 / 0 | 5 | ✓ Full exchange observed |
| 09-14 19:12 | 80m | - / -7 | RC2DT | -6 / - | 2 | Partial capture |
| 09-14 19:07 | 40m | -24 / -11 | R6LFO | -12 / - | 3 | ✓ Closing observed |
| 09-14 19:00 | 40m | - / -5 | RK1N | +1 / - | 2 | ✓ Closing fragment |
| 09-12 20:09 | 80m | -7 / +3 | RA3DAD | +3 / +2 | 5 | ✓ Full exchange observed |
| 09-04 19:25 | 40m | -7 / - | RA6LTD | -8 / +2 | 4 | ✓ Full exchange observed |
| 09-04 19:24 | 40m | -6 / - | BG0FQU | -17 / -10 | 2 | ✓ Closing observed |
| 09-04 19:19 | 40m | -6 / -6 | TA2EE | -21 / -3 | 7 | ✓ Full exchange observed |
| 09-04 19:13 | 40m | -8 / -13 | R1BNF | -16 / -3 | 8 | ✓ Full exchange observed |
| 09-04 19:07 | 40m | -8 / - | UG0B | - / -6 | 2 | ✓ Closing fragment |
| 09-04 19:06 | 40m | -2 / - | JA0RUG | - / -10 | 2 | ✓ Closing fragment |
| 09-04 19:04 | 40m | -8 / +2 | UB4HVA | -10 / -23 | 5 | ✓ Full exchange observed |
| 08-30 04:49 | 20m | -8 / -8 | RA9FDR | -21 / -17 | 3 | ✓ Full exchange observed |
| 08-30 04:47 | 20m | -8 / - | PD0RCQ | - / +1 | 2 | ✓ Closing fragment |
| 08-30 04:45 | 20m | -2 / - | PD3LKN | - / -5 | 2 | ✓ Closing fragment |
| 08-30 04:43 | 20m | -8 / - | 9A2TN | - / -7 | 3 | ✓ Closing fragment |
| 08-30 04:41 | 20m | -5 / -16 | RX6FN | +4 / -2 | 5 | ✓ Full exchange observed |
| 08-30 04:40 | 20m | -16 / - | LZ1LZ | - / -11 | 2 | ✓ Closing fragment |
| 08-30 04:31 | 20m | -16 / - | SP6GCU | - / -13 | 2 | ✓ Closing fragment |
| 08-30 04:30 | 20m | -10 / -6 | RW9WJ | -1 / -8 | 5 | ✓ Full exchange observed |
| 08-30 04:28 | 20m | - / -17 | R9OOH | -20 / - | 4 | ✓ Closing fragment |
| 08-30 04:27 | 20m | -13 / -7 | UA0QNE | -16 / -5 | 3 | Partial capture |
| 08-30 04:25 | 20m | - / -6 | UB9USV | -10 / - | 3 | ✓ Closing fragment |
| 08-29 18:44 | 80m | -11 / -11 | DO1OAS | -8 / -18 | 4 | ✓ Full exchange observed |
| 08-29 18:42 | 80m | -7 / -7 | R6ML | -1 / -15 | 7 | ✓ Full exchange observed |
| 08-29 18:09 | 20m | - / - | G8WIL | -11 / - | 2 | ✓ Closing fragment |
| 08-29 18:08 | 20m | - / -13 | BG7BVI | -11 / - | 3 | ✓ Closing fragment |
| 08-29 16:15 | 80m | -7 / -5 | RN7T | -12 / -5 | 4 | ✓ Full exchange observed |
| 08-16 10:16 | 10m | - / -22 | IU0VOG | -8 / - | 4 | ✓ Closing fragment |
| 08-16 04:46 | 40m | - / -16 | RN3ZBX | -9 / - | 3 | ✓ Closing fragment |
| 08-15 13:28 | 20m | - / - | 2W0YOX | -14 / - | 2 | Partial capture |
| 08-15 13:21 | 20m | -4 / - | SN1B | - / -1 | 2 | ✓ Closing fragment |
| 08-15 04:46 | 20m | -12 / - | DG0JK | - / - | 2 | ✓ Closing fragment |
| 08-11 19:49 | 10m | -18 / - | SP6FME | - / -9 | 2 | Partial capture |
| 08-09 18:54 | 40m | - / -9 | UA2FBW | -4 / - | 3 | ✓ Closing fragment |
| 08-09 18:53 | 40m | - / +1 | E70SZ | -9 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194715 +2 215 R2SBI RA6OY KN88 (x3) 194845 -8 942 R2SBI R4HHN LO43 (x2) 195000 -18 942 CQ R2SBI KO93 195015 -9 1957 R2SBI R4ABW LO00 195030 -16 942 RA3TVW R2SBI -02 195045 -6 1423 R2SBI RA3TVW R+00 (x2) 195130 -11 942 R4ABW R2SBI RR73 195145 -12 1422 R2SBI RA3TVW R+00 195145 -11 2155 R2SBI R4ABW 73 195215 -12 1422 R2SBI RA3TVW R+00 195315 +2 610 R2SBI DL6UM JO60
UTC dB Audio Message 145930 +5 1900 R2SBI UA3DPM 73 150030 -1 571 R2SBI RA4CGX LO21 150045 -6 1614 UK8FCM R2SBI 73 150100 -7 571 R2SBI RA4CGX LO21 (x3) 150215 -4 1614 RA4CGX R2SBI RR73 150230 +0 571 R2SBI RA4CGX 73 150245 -6 1614 CQ R2SBI KO93 150315 -3 1615 RN3N R2SBI -01 150445 -12 1615 R9IT R2SBI 73 150515 -10 1615 CQ R2SBI KO93 150530 +3 1613 R2SBI RA3AJT -12 150545 -7 1614 RA3AJT R2SBI R-08 150600 +0 1613 R2SBI RA3AJT RR73
UTC dB Audio Message 044315 -1 1079 9A2TN R2SBI -07 (x3) 044515 -3 1080 CQ R2SBI KO93 044545 -2 1079 PD3LKN R2SBI -05 (x2) 044645 -3 1079 CQ R2SBI KO93 044715 -4 1080 PD0RCQ R2SBI +01 (x2) 044815 -17 1080 CQ R2SBI KO93 (x3) 044945 -18 1078 RA9FDR R2SBI -17 045000 -21 2192 R2SBI RA9FDR R-08 045015 +3 1079 RA9FDR R2SBI RR73
UTC dB Audio Message 175800 -14 1184 R2SBI EB5HRZ IM99 175845 -21 1184 CQ R2SBI KO93 a1 (x2) 180245 -19 1184 EB5HRZ R2SBI RR73 180315 -17 1184 CQ R2SBI KO93 (x2) 180415 -17 1184 YO8SIF R2SBI -06 194715 -20 1139 EA3IJP R2SBI -21 194915 -19 1139 SP6FME R2SBI -09 (x2) 101645 -7 567 R2SBI IU0VOG JN61 (x4) 101900 -16 1090 CQ R2SBI KO93
UTC dB Audio Message 185400 -16 997 R2SBI RU3OW KO91 (x2) 190130 -2 2124 R2SBI RA3LBW -12 (x3) 190415 -10 1496 R2SBI RK3QA -02 (x2) 190730 -14 1798 R2SBI RD7O -20
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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