RU9W — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RU9W, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-26.
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 54 FT8 messages attributed to RU9W 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 (76%), followed by 40 m (15%) and 80 m (9%). Most decodes (54%) fell within the six-hour window 00:00-06:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-08-26 04:10 UTC
Observed FT8 message patterns
- Attributed sample
- 54 messages
- Active dates
- 12 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -18 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 12.
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 RU9W 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 RU9W
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
- LO64 · 36 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,166 km (approx.)
- Last such locator decoded
- 2026-08-26 04:09 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 | RU9W S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 08:35 | 20m | - / -13 | YO9PH | -2 / - | 2 | ✓ Closing fragment |
| 08-26 04:09 | 20m | -11 / -11 | OD5ZZ | -10 / -12 | 5 | ✓ Full exchange observed |
| 08-26 04:06 | 20m | -7 / -5 | HZ1ES | -6 / -9 | 6 | ✓ Full exchange observed |
| 08-26 04:05 | 20m | - / -14 | NF3R | -20 / - | 3 | Partial capture |
| 08-26 04:03 | 20m | -7 / - | N0IDX | - / - | 2 | Partial capture |
| 08-26 04:00 | 20m | -14 / - | KF0JNO | - / - | 2 | Partial capture |
| 08-26 03:59 | 20m | -12 / - | K6KZM | - / - | 2 | Partial capture |
| 08-26 03:56 | 20m | -11 / - | RY6O | - / -8 | 3 | ✓ Closing fragment |
| 08-26 03:52 | 20m | -10 / -10 | K2TQC | -12 / - | 4 | ✓ Closing observed |
| 08-21 20:03 | 80m | -13 / -3 | RZ4AT | -2 / 0 | 5 | ✓ Full exchange observed |
| 08-21 20:02 | 80m | -16 / -4 | R3BDQ | -2 / -8 | 4 | ✓ Full exchange observed |
| 08-21 09:02 | 20m | -10 / - | OJ0YL | - / - | 2 | Partial capture |
| 08-17 13:34 | 20m | -18 / -19 | R7ZY | -12 / - | 3 | ✓ Closing observed |
| 08-06 04:57 | 20m | - / -19 | F4LNM | -20 / - | 3 | ✓ Closing fragment |
| 08-06 04:53 | 20m | - / -11 | UA6JQ | -10 / - | 2 | ✓ Closing fragment |
| 07-24 17:24 | 20m | -12 / - | 9J2FI | - / - | 4 | Partial capture |
| 07-23 06:23 | 20m | - / -11 | RN6HGI | -14 / - | 2 | ✓ Closing fragment |
| 07-19 13:37 | 10m | - / +4 | RW3LL | -7 / - | 3 | Partial capture |
| 07-15 04:36 | 20m | - / -8 | UB6OFG | -14 / - | 2 | Partial capture |
| 07-13 04:16 | 20m | - / -13 | R7OI | -13 / - | 3 | Partial capture |
| 07-11 03:33 | 20m | - / -3 | R5AV | -16 / - | 2 | ✓ Closing fragment |
| 07-03 04:15 | 20m | -23 / - | K2L | - / - | 2 | Partial capture |
| 07-03 04:11 | 20m | -18 / - | KF0YOB | - / - | 2 | Partial capture |
| 06-25 16:30 | 40m | - / -8 | LZ2SPD | -18 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 040615 -7 782 RU9W HZ1ES LL34 (x2) 040745 -14 2267 RU9W A92AE -18 040800 -11 781 HZ1ES RU9W -09 040815 -4 782 RU9W HZ1ES R-05 040830 -3 782 HZ1ES RU9W RR73 040845 -5 782 RU9W HZ1ES 73 040900 -9 938 CQ RU9W LO64 040915 -7 615 RU9W OD5ZZ -11 040930 -7 938 OD5ZZ RU9W R-12 (x2) 041015 -12 615 RU9W OD5ZZ RR73 041030 -14 617 OD5ZZ RU9W 73 083530 +0 2019 RU9W YO9PH -13 (x2)
UTC dB Audio Message 200230 -14 1362 CQ RU9W LO64 200245 -3 2254 RU9W R3BDQ -04 200300 -18 1361 R3BDQ RU9W R-08 200315 -2 2254 RU9W R3BDQ RR73 200330 -14 1361 R3BDQ RU9W 73 200345 +0 2172 RU9W RZ4AT LN28 200400 -12 1361 RZ4AT RU9W +00 200415 -4 2172 RU9W RZ4AT R-03 200430 -14 1362 RZ4AT RU9W RR73 200445 -3 2172 RU9W RZ4AT 73
UTC dB Audio Message 163045 -19 2045 RU9W LZ2SPD KN22 (x2) 195830 -12 1069 CQ RU9W LO64 a1 195845 -8 1070 RU9W F1IQH JN27 195900 -10 1070 CQ RU9W LO64 195945 -5 1464 RU9W DL6UM JO60 200145 -6 1071 RU9W SV8GXC KM38
UTC dB Audio Message 133745 -8 488 RU9W RW3LL KO54 (x3)
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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