R9JAU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R9JAU, decoded by SO8OO in southeastern Poland. 121 FT8 messages attributed to this token as transmitter, on 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-30.
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 121 FT8 messages attributed to R9JAU as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (53%) 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
Observed FT8 message patterns
- Attributed sample
- 121 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -15 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 67, strong (≥ -8 dB) 42.
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 R9JAU 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 R9JAU
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
- MP61 · 105 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,349 km (approx.)
- Last such locator decoded
- 2026-08-30 14:38 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 | R9JAU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-30 17:42 | 20m | - / -20 | EA5HEU | +2 / - | 2 | Partial capture |
| 08-30 17:17 | 20m | - / -19 | IU2VBP | +10 / - | 3 | ✓ Closing fragment |
| 08-30 14:32 | 20m | - / -15 | UA3RCW | +4 / - | 2 | ✓ Closing fragment |
| 08-30 14:32 | 20m | - / - | MI7XHT | -12 / - | 2 | Partial capture |
| 08-30 14:19 | 20m | - / -9 | G4UJS | +2 / - | 3 | ✓ Closing fragment |
| 08-30 11:28 | 20m | - / -18 | RO5A | -20 / - | 2 | Partial capture |
| 08-30 11:21 | 20m | - / -16 | RX6DA | 0 / - | 3 | ✓ Closing fragment |
| 08-30 11:16 | 20m | - / - | RX6DA | +3 / - | 3 | Partial capture |
| 08-30 11:15 | 20m | - / -3 | UA3TEK | -7 / - | 3 | ✓ Closing fragment |
| 08-30 11:04 | 20m | - / -21 | IK4LZH | +20 / - | 3 | ✓ Closing fragment |
| 08-30 11:03 | 20m | - / - | R3FE | +4 / - | 4 | Partial capture |
| 08-30 08:02 | 20m | - / - | PD2BS | -7 / - | 2 | Partial capture |
| 08-30 07:56 | 20m | - / +4 | RA3XDX | +14 / - | 5 | ✓ Closing fragment |
| 08-30 07:19 | 20m | - / - | F4HDR | -4 / - | 2 | Partial capture |
| 08-30 06:37 | 20m | - / -15 | YT7TZ | -4 / - | 2 | Partial capture |
| 08-30 06:03 | 20m | - / -19 | TA2ED | -10 / - | 2 | Partial capture |
| 08-30 05:52 | 20m | - / -13 | R2RAU | +8 / - | 2 | ✓ Closing fragment |
| 08-30 05:48 | 20m | - / 0 | UB4CKD | -6 / - | 3 | Partial capture |
| 08-30 05:29 | 20m | -8 / - | 9A2CD | - / -14 | 3 | ✓ Closing fragment |
| 08-29 09:59 | 20m | - / -8 | RM6OS | +7 / - | 2 | ✓ Closing fragment |
| 08-29 09:48 | 20m | - / - | M6GPH | -1 / - | 2 | Partial capture |
| 08-29 07:29 | 20m | - / - | RD6OZ | -7 / - | 2 | ✓ Closing fragment |
| 08-29 06:58 | 20m | - / -12 | DH2RL | -6 / - | 7 | Partial capture |
| 08-28 02:15 | 20m | - / -14 | WV2B | -1 / - | 2 | ✓ Closing fragment |
| 08-28 02:06 | 20m | - / -20 | WV2B | -2 / - | 2 | Partial capture |
| 08-27 17:25 | 20m | - / - | F1PPH | +4 / - | 7 | Partial capture |
| 08-27 16:48 | 20m | - / - | PD3LKN | +1 / - | 2 | Partial capture |
| 08-27 16:26 | 20m | - / -8 | DA1EA | +9 / - | 2 | Partial capture |
| 08-27 16:25 | 20m | - / - | CT2FXY | +7 / - | 2 | Partial capture |
| 08-27 16:24 | 20m | - / -16 | G4UJS | +3 / - | 3 | Partial capture |
| 08-27 16:20 | 20m | - / - | F5IXN | +7 / - | 3 | Partial capture |
| 08-27 16:16 | 20m | - / - | PD3LKN | -2 / - | 5 | Partial capture |
| 08-27 16:10 | 20m | -9 / - | RZ3DNJ | - / -16 | 2 | ✓ Closing fragment |
| 08-27 16:00 | 20m | - / +2 | MM3RCR | -2 / - | 2 | ✓ Closing fragment |
| 08-27 02:12 | 20m | - / - | XQ3MCC | -8 / - | 2 | Partial capture |
| 08-26 02:24 | 20m | - / - | W8BLA | -10 / - | 2 | Partial capture |
| 08-26 01:51 | 20m | - / - | N3YT | -12 / - | 2 | Partial capture |
| 08-25 01:37 | 20m | - / -21 | ZZ2DX | -18 / - | 4 | Partial capture |
| 08-23 14:14 | 20m | -12 / - | UC6B | - / - | 3 | Partial capture |
| 08-23 14:12 | 20m | - / - | DL5BWG | -14 / - | 2 | Partial capture |
| 08-23 14:10 | 20m | -8 / - | JG3JLC | - / -11 | 3 | ✓ Closing fragment |
| 08-23 14:08 | 20m | - / - | M0TRZ | -3 / - | 3 | Partial capture |
| 08-23 14:06 | 20m | -9 / - | JA7QVI | - / -15 | 2 | ✓ Closing fragment |
| 08-23 14:03 | 20m | -12 / - | BH3PPC | - / - | 3 | Partial capture |
| 08-23 14:02 | 20m | -11 / - | RD9T | - / -11 | 3 | ✓ Closing fragment |
| 08-23 13:57 | 20m | - / - | DL2AX | +6 / - | 2 | Partial capture |
| 08-23 10:18 | 20m | - / -16 | IK4LZH | +12 / - | 2 | Partial capture |
| 08-23 06:04 | 20m | - / - | EA3E | +4 / - | 3 | Partial capture |
| 08-22 16:39 | 20m | - / - | PE9E | -10 / - | 2 | Partial capture |
| 08-22 16:30 | 20m | - / -1 | RK3AF | -2 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 142500 -14 2528 R9JAU SM7HWD JO65 143215 -9 2482 R9JAU MI7XHT IO64 143245 +4 1880 R9JAU UA3RCW -15 (x2) 143415 -15 2482 R9JAU MI7XHT IO64 143430 -8 628 CQ R9JAU MP61 (x5) 171715 +8 2619 R9JAU IU2VBP JN45 (x3) 174200 +5 2337 R9JAU EA5HEU JN00 (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.
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