RC9OC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RC9OC, decoded by SO8OO in southeastern Poland. 192 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-08-25 and 2026-10-03.
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 192 FT8 messages attributed to RC9OC as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (59%), followed by 40 m (37%) and 20 m (4%). Several six-hour UTC windows tied for the largest share (94%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-10-03 01:27 UTC
Observed FT8 message patterns
- Attributed sample
- 192 messages
- Active dates
- 23 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -23 to -10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 97, moderate (-15 to -9 dB) 82, strong (≥ -8 dB) 13.
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 RC9OC 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 RC9OC
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
- NO14 · 109 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 4,067 km (approx.)
- Last such locator decoded
- 2026-10-03 01:27 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 | RC9OC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-06 01:06 | 80m | - / -2 | RW9MZ | -22 / - | 2 | ✓ Closing fragment |
| 10-05 17:55 | 160m | - / - | IK0HBN | +8 / - | 7 | Partial capture |
| 10-05 17:48 | 160m | - / - | IK0HBN | +7 / - | 8 | Partial capture |
| 10-05 17:45 | 160m | - / - | RA3ZH | 0 / - | 5 | Partial capture |
| 10-05 17:19 | 160m | - / - | RA3ZK | +1 / - | 2 | Partial capture |
| 10-05 15:22 | 160m | - / -12 | UA9MA | -10 / - | 2 | ✓ Closing fragment |
| 10-05 02:28 | 40m | - / - | R6FX | -11 / - | 2 | ✓ Closing fragment |
| 10-03 01:37 | 80m | - / -16 | R9FDE | -15 / - | 4 | ✓ Closing fragment |
| 10-03 01:29 | 80m | - / -10 | RA9LY | -7 / - | 5 | ✓ Closing fragment |
| 10-03 01:28 | 80m | - / -17 | RD4HX | -18 / - | 4 | Partial capture |
| 10-03 01:22 | 80m | - / -17 | RA6FC | +4 / - | 3 | ✓ Closing fragment |
| 10-03 00:47 | 40m | - / -7 | R80SAA | -16 / - | 2 | ✓ Closing fragment |
| 10-03 00:15 | 80m | - / -24 | OK6RV | +22 / - | 3 | Partial capture |
| 10-03 00:12 | 80m | - / -8 | 7Z1IS | -10 / - | 2 | Partial capture |
| 10-03 00:09 | 80m | - / -8 | OH5KNL | +11 / - | 2 | ✓ Closing fragment |
| 10-02 01:27 | 40m | - / - | RZ4FWA | -16 / - | 4 | Partial capture |
| 10-02 01:25 | 40m | - / - | EA2EWL | -16 / - | 8 | Partial capture |
| 10-02 01:05 | 80m | - / -17 | R2BQM | -21 / - | 3 | Partial capture |
| 10-02 00:59 | 80m | -21 / - | ON6AA | - / - | 3 | Partial capture |
| 10-02 00:53 | 80m | -19 / -24 | SP5MXZ | +9 / -13 | 7 | ✓ Full exchange observed |
| 10-02 00:52 | 80m | -18 / -9 | LY5A | +18 / -2 | 5 | ✓ Full exchange observed |
| 10-01 00:16 | 40m | -23 / - | SV9QWC | - / - | 2 | Partial capture |
| 09-30 00:52 | 40m | - / -17 | LA6YEA | -8 / - | 2 | ✓ Closing fragment |
| 09-30 00:39 | 80m | - / - | RX6DA | +1 / - | 5 | Partial capture |
| 09-30 00:38 | 80m | - / -14 | DO5OT | +23 / - | 11 | Partial capture |
| 09-30 00:30 | 80m | - / -11 | LA6YEA | +8 / - | 2 | ✓ Closing fragment |
| 09-30 00:16 | 80m | - / - | YO3GNF | -6 / - | 7 | Partial capture |
| 09-30 00:15 | 80m | - / -20 | HA1SU | +16 / - | 2 | Partial capture |
| 09-30 00:15 | 80m | - / -19 | SM6EHY | +4 / - | 5 | ✓ Closing fragment |
| 09-30 00:14 | 80m | - / - | DO5OT | +25 / - | 7 | Partial capture |
| 09-30 00:14 | 80m | - / - | R3SN | -18 / - | 6 | Partial capture |
| 09-30 00:10 | 80m | - / -6 | UA3RBM | -17 / - | 2 | ✓ Closing fragment |
| 09-30 00:07 | 80m | -14 / - | UA9JTJ/9 | - / - | 3 | Partial capture |
| 09-29 00:39 | 40m | - / -24 | PE1NPS | +4 / - | 4 | ✓ Closing fragment |
| 09-25 02:50 | 40m | - / -16 | RV9CW | -4 / - | 3 | ✓ Closing fragment |
| 09-25 02:34 | 40m | - / -20 | RM4N | -8 / - | 2 | ✓ Closing fragment |
| 09-25 02:29 | 40m | - / -14 | RZ6ALZ | -14 / - | 3 | ✓ Closing fragment |
| 09-24 00:29 | 40m | - / - | RZ4FWA | -18 / - | 3 | Partial capture |
| 09-24 00:18 | 80m | - / - | SM3ULU | -10 / - | 3 | Partial capture |
| 09-24 00:15 | 80m | - / - | DA0O | -10 / - | 3 | Partial capture |
| 09-24 00:13 | 80m | - / -5 | UA4UAR | -10 / - | 3 | ✓ Closing fragment |
| 09-24 00:10 | 80m | -17 / +1 | LZ1KU | +8 / - | 3 | ✓ Closing observed |
| 09-24 00:08 | 80m | -18 / +5 | UA9FLI | +4 / -5 | 5 | ✓ Full exchange observed |
| 09-24 00:07 | 80m | - / -21 | RN2F | -2 / - | 2 | ✓ Closing fragment |
| 09-24 00:05 | 80m | - / - | EA1IOK | -15 / - | 5 | Partial capture |
| 09-24 00:04 | 80m | -17 / -20 | GW8DX | +7 / -9 | 3 | ✓ Full exchange observed |
| 09-23 13:49 | 40m | - / - | RW6ATD | -6 / - | 2 | Partial capture |
| 09-23 00:48 | 80m | - / -18 | R2PT | 0 / - | 2 | ✓ Closing fragment |
| 09-22 01:14 | 80m | - / -25 | ER3ZW | +2 / - | 3 | ✓ Closing fragment |
| 09-21 00:59 | 40m | - / -21 | RA5BQ | -1 / - | 6 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 012815 -16 1958 RC9OC RD4HX LO53 (x3) 012915 -7 2042 RC9OC RA9LY MO27 012945 -16 1958 RC9OC RD4HX R-17 012945 -6 2042 RC9OC RA9LY MO27 (x4) 013745 -20 1959 RC9OC R9FDE LO88 (x4) 010645 -24 1933 RC9OC RW9MZ R-02 (x2)
UTC dB Audio Message 174915 +10 770 RC9OC IK0HBN JN62 (x6) 175245 +4 353 RC9OC RA3ZH KO81 175245 +1 1238 RC9OC IK0HBN JN62 (x8)
UTC dB Audio Message 012600 -11 1819 RC9OC EA2EWL IN91 012700 -13 2027 RC9OC RZ4FWA LO23 (x2) 012730 -20 1819 RC9OC EA2EWL IN91 012800 -19 2027 RC9OC RZ4FWA LO23 012800 -14 1819 RC9OC EA2EWL IN91 012830 -12 2027 RC9OC RZ4FWA LO23 012830 -18 1819 RC9OC EA2EWL IN91 (x4) 004715 -19 1091 RC9OC R80SAA -07 (x2) 022800 -14 2091 RC9OC R6FX LN14 (x2)
UTC dB Audio Message 084130 -11 2301 RC9OC SV2AEL KN10 (x4)
UTC dB Audio Message 141845 -19 1232 RC9OC RA6FSV LN05 (x3) 142045 +10 2791 RC9OC UA6B KN96 033530 -23 1581 RC9OC RZ6CO -14 025145 +5 2528 RC9OC SV5BYP KM46 (x3) 044800 -10 2570 LX7I RC9OC NO14 (x4) 045030 -13 2574 UA0QNE RC9OC +01 (x2) 045145 +9 2575 RC9OC RZ4AZ LN28
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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