RC9A — 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 RC9A, decoded by SO8OO in southeastern Poland. 668 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-08-01 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 668 FT8 messages attributed to RC9A as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (75%), followed by 20 m (22%) and 80 m (2%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-11-05 02:36 UTC
Observed FT8 message patterns
- Attributed sample
- 668 messages
- Active dates
- 20 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -19 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 175, moderate (-15 to -9 dB) 256, strong (≥ -8 dB) 237.
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 RC9A 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 RC9A
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
- MO04 · 455 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,682 km (approx.)
- Last such locator decoded
- 2026-11-05 02:36 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 | RC9A S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-04 04:19 | 40m | -12 / - | OA4DOR | - / - | 2 | Partial capture |
| 11-04 03:43 | 40m | -10 / - | HI8WJI | - / - | 6 | Partial capture |
| 11-04 03:39 | 40m | -18 / - | KO4XJ | - / -15 | 3 | ✓ Closing fragment |
| 11-04 03:36 | 40m | -10 / - | HI8WJI | - / - | 5 | Partial capture |
| 11-04 03:34 | 40m | -12 / - | KO4XJ | - / -14 | 3 | ✓ Closing fragment |
| 11-04 03:32 | 40m | -12 / - | KF9UG | - / - | 3 | Partial capture |
| 11-04 03:30 | 40m | -8 / - | HC5ARC | - / -9 | 3 | ✓ Closing fragment |
| 11-04 03:30 | 40m | - / - | HB9TIH | -1 / - | 3 | Partial capture |
| 11-04 03:25 | 40m | -1 / - | PR7EG | - / - | 3 | Partial capture |
| 11-04 03:23 | 40m | -4 / - | PY2II | - / - | 2 | Partial capture |
| 11-04 03:22 | 40m | +1 / - | ZP5DBC | - / 0 | 3 | ✓ Closing fragment |
| 11-04 03:21 | 40m | - / - | IU2THY | +4 / - | 2 | Partial capture |
| 11-04 03:19 | 40m | - / - | HB9TIH | -14 / - | 4 | Partial capture |
| 11-04 03:15 | 40m | -5 / - | PY4QQ | - / -16 | 3 | ✓ Closing fragment |
| 11-04 03:13 | 40m | -6 / - | LU6WAV | - / -15 | 3 | ✓ Closing fragment |
| 11-04 03:10 | 40m | -6 / - | ZZ5UNO | - / -8 | 3 | ✓ Closing fragment |
| 11-04 03:06 | 160m | - / -17 | RK3AW/P | -5 / - | 3 | ✓ Closing fragment |
| 11-03 16:25 | 40m | -10 / - | BH4GWF | - / -13 | 2 | Partial capture |
| 11-03 16:24 | 40m | - / - | R8CKD | -16 / - | 2 | Partial capture |
| 11-03 16:19 | 40m | -8 / - | UA0LQE | - / -19 | 2 | Partial capture |
| 11-03 16:17 | 40m | - / - | OE8PIT | +5 / - | 4 | Partial capture |
| 11-03 16:16 | 40m | -12 / - | BG2DIH | - / -17 | 2 | ✓ Closing fragment |
| 11-03 16:14 | 40m | -12 / - | BH2SIV | - / -13 | 2 | ✓ Closing fragment |
| 11-03 16:12 | 40m | -11 / - | BD4VNB | - / -15 | 2 | ✓ Closing fragment |
| 11-03 16:10 | 40m | -8 / - | RV9UNK | - / - | 2 | ✓ Closing fragment |
| 11-03 16:07 | 40m | -17 / - | VU2XZ | - / - | 3 | ✓ Closing fragment |
| 11-03 02:22 | 80m | -10 / - | UA9XL/P | - / - | 6 | Partial capture |
| 11-03 02:19 | 80m | -6 / - | SP5DFK/QRP | - / - | 2 | Partial capture |
| 11-02 16:31 | 80m | - / 0 | UA3SCU | -16 / - | 2 | Partial capture |
| 11-02 16:31 | 80m | - / - | 9A3K | +7 / - | 2 | Partial capture |
| 11-02 16:29 | 80m | -22 / - | PC40EUDXF | - / -13 | 2 | Partial capture |
| 11-01 14:29 | 40m | -4 / - | F4JXY/P | - / -8 | 3 | Partial capture |
| 10-30 03:13 | 40m | -11 / - | N1YXE | - / -14 | 5 | Partial capture |
| 10-30 03:12 | 40m | -2 / - | HK3VXX | - / - | 3 | Partial capture |
| 10-30 02:42 | 80m | - / - | 9A3K | +8 / - | 2 | Partial capture |
| 10-30 02:42 | 80m | - / - | YO6LM | -1 / - | 2 | Partial capture |
| 10-30 02:40 | 80m | -1 / - | OL900LTV | - / +2 | 4 | Partial capture |
| 10-30 02:35 | 40m | +2 / -1 | F5OYA/P | -5 / - | 3 | Partial capture |
| 10-30 02:34 | 40m | +8 / - | IK3/UY7LA | - / - | 2 | Partial capture |
| 10-30 02:31 | 40m | -7 / - | RA6MQ/P | - / - | 4 | Partial capture |
| 10-30 02:27 | 40m | -15 / - | W9XB | - / -11 | 3 | ✓ Closing fragment |
| 10-30 02:25 | 40m | -14 / - | K6VHF | - / - | 2 | Partial capture |
| 10-30 02:24 | 40m | -16 / - | N4ML | - / - | 2 | Partial capture |
| 10-30 02:20 | 40m | 0 / - | TN8GD | - / - | 2 | Partial capture |
| 10-30 02:19 | 40m | -2 / - | TJ1GD | - / -17 | 2 | Partial capture |
| 10-30 02:15 | 40m | -7 / - | RA6MQ/P | - / -15 | 4 | Partial capture |
| 10-30 02:08 | 160m | -23 / -16 | RA6MQ/P | -16 / -2 | 2 | Partial capture |
| 10-29 03:18 | 40m | -14 / - | HC2GRC | - / -11 | 4 | ✓ Closing fragment |
| 10-29 03:14 | 40m | -13 / - | WP4SIG | - / -11 | 7 | ✓ Closing fragment |
| 10-29 03:11 | 40m | - / - | G3TKT | +3 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 033815 -10 1879 HI8WJI RC9A MO04 033915 -15 1879 KO4XJ RC9A MO04 (x3) 034230 -17 1879 N3XX RC9A 73 034300 -15 1879 HI8WJI RC9A MO04 (x6) 041915 -11 1967 OA4DOR RC9A MO04 (x2) 023345 -18 2033 PY4CRC RC9A MO04 023615 -18 2033 D44PX RC9A MO04
UTC dB Audio Message 215630 -12 1846 CQ WW RC9A MO04 (x6) 020845 -16 1395 RC9A RA6MQ/P -16 020900 -23 1801 RA6MQ/P RC9A R-02 030630 -5 1441 RC9A RK3AW/P -17 (x3)
UTC dB Audio Message 162915 -4 1977 RC9A R9FCS/4 -20 162930 -24 1895 PC40EUDXF RC9A R-13 163115 -6 1977 <RC9A> R330BF 73 163115 +2 1793 RC9A 9A3K JN65 163145 -18 1252 RC9A UA3SCU +00 163145 +12 1793 RC9A 9A3K JN65 163215 -13 1252 RC9A UA3SCU +00 021945 -11 1895 SP5DFK/QRP RC9A MO04 (x2) 022245 -6 1643 UA9XL/P RC9A MO04 (x6)
UTC dB Audio Message 134415 -2 649 RC9A RA0SCZ OO06 (x3) 134530 -16 1800 RA0SCZ RC9A R MO04 134545 -4 649 RC9A RA0SCZ -08 (x2) 134630 -9 1844 CQ WW RC9A MO04 134645 -1 650 RC9A RA0SCZ -08 (x2) 134730 -7 1844 CQ WW RC9A MO04 134745 -9 650 RC9A RA0SCZ -08 134830 -18 1844 JG5VFK RC9A R MO04 134845 -3 650 RC9A RA0SCZ -08 (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
3 CW reception events in the last 30 days.
Latest CW receptions
| UTC | Band | kHz | S/N · 500 Hz | WPM | Listen |
|---|---|---|---|---|---|
| 2026-11-01 02:51:46 | 80m | 3520.996 | 9.4 dB | 26.8 | WebSDR ↗ |
| 2026-10-31 18:07:04 | 40m | 7018.024 | 8.3 dB | — | WebSDR ↗ |
| 2026-10-31 14:59:53 | 40m | 7013.023 | 7.8 dB | 30.6 | WebSDR ↗ |
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