RA9MLJ — 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 RA9MLJ, decoded by SO8OO in southeastern Poland. 31 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-25 and 2026-08-28.
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 31 FT8 messages attributed to RA9MLJ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (55%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 31 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -20 to -11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 0.
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 RA9MLJ 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 RA9MLJ
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
- MO64 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,446 km (approx.)
- Last such locator decoded
- 2026-08-25 20:21 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 | RA9MLJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-25 01:36 | 40m | - / -15 | I1RJP | -14 / - | 4 | ✓ Closing fragment |
| 08-31 10:13 | 20m | - / +1 | RA9LY | -14 / - | 2 | ✓ Closing fragment |
| 08-28 05:27 | 20m | -13 / - | IW3SMU | - / -18 | 3 | ✓ Closing fragment |
| 08-28 05:24 | 20m | -15 / - | YL2KF | - / -8 | 2 | ✓ Closing fragment |
| 08-28 05:19 | 20m | - / - | YO4NT | -4 / - | 2 | Partial capture |
| 08-28 05:16 | 20m | - / -17 | R6FX | -2 / - | 5 | ✓ Closing fragment |
| 08-28 05:16 | 20m | - / - | UB3DQR | -8 / - | 2 | Partial capture |
| 08-28 05:15 | 20m | - / -7 | 4L1FL | +2 / - | 2 | ✓ Closing fragment |
| 08-25 20:33 | 20m | -17 / -15 | 4L7T | -2 / -13 | 4 | Partial capture |
| 08-25 20:28 | 20m | - / - | R6TA | +5 / - | 3 | Partial capture |
| 08-25 20:27 | 20m | -12 / - | DL3RAJ | - / -20 | 2 | Partial capture |
| 08-25 20:23 | 20m | - / - | EA1CQ | +2 / - | 2 | Partial capture |
| 08-25 20:19 | 20m | - / - | EA3BIC | -10 / - | 2 | Partial capture |
| 08-25 20:17 | 20m | -16 / -13 | HS0ZOY | -2 / -19 | 10 | ✓ Full exchange observed |
| 08-25 14:53 | 20m | - / - | RA6FSV | 0 / - | 2 | Partial capture |
| 08-25 14:46 | 20m | - / -12 | F4HTA | -3 / - | 4 | ✓ Closing fragment |
| 08-25 14:46 | 20m | - / -20 | RA3TOS | -10 / - | 3 | Partial capture |
| 08-25 14:45 | 20m | -12 / - | UN0PA | - / -13 | 2 | ✓ Closing fragment |
| 08-25 14:43 | 20m | - / -4 | EP2AES | -11 / - | 3 | ✓ Closing fragment |
| 08-25 14:40 | 20m | -14 / - | IK4RVY | - / - | 2 | Partial capture |
| 08-25 14:33 | 20m | -20 / - | II7MGBT | - / -16 | 5 | Partial capture |
| 08-25 13:43 | 20m | -12 / - | RA9XSL | - / -8 | 2 | ✓ Closing fragment |
| 08-25 13:42 | 20m | - / - | RA3RDN | +20 / - | 2 | Partial capture |
| 08-25 13:41 | 20m | - / -12 | OS4K | -23 / - | 2 | Partial capture |
| 08-25 12:01 | 20m | - / -16 | R1530IG | +8 / - | 4 | Partial capture |
| 08-25 11:08 | 20m | - / -21 | IK4LZH | +18 / - | 2 | ✓ Closing fragment |
| 08-25 09:34 | 20m | - / - | PD2PE | -6 / - | 4 | Partial capture |
| 08-25 09:25 | 20m | - / -11 | DL3MIB | -2 / - | 8 | ✓ Closing fragment |
| 08-25 09:25 | 20m | - / - | PD2PE | +1 / - | 10 | Partial capture |
| 08-25 02:46 | 20m | - / -23 | A41KB | -3 / - | 6 | ✓ Closing fragment |
| 08-25 02:32 | 20m | - / -2 | UN0GY | -12 / - | 2 | ✓ Closing fragment |
| 08-22 09:49 | 20m | - / -15 | SP2GK | -12 / - | 2 | ✓ Closing fragment |
| 08-21 12:25 | 20m | - / -8 | UN7PNF | -13 / - | 3 | ✓ Closing fragment |
| 08-21 08:51 | 20m | - / -15 | TF5B | -18 / - | 3 | Partial capture |
| 08-21 07:54 | 20m | - / +4 | DL3HBF | +3 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 013630 -15 2321 RA9MLJ I1RJP JN45 (x4)
UTC dB Audio Message 051645 -1 2008 RA9MLJ R6FX LN14 051715 -6 979 RA9MLJ UB3DQR KO85 051715 -3 2008 RA9MLJ R6FX LN14 (x3) 051915 -4 1741 RA9MLJ YO4NT KN43 051915 +2 2008 RA9MLJ R6FX 73 051945 -4 1741 RA9MLJ YO4NT KN43 052445 -16 2017 YL2KF RA9MLJ R-08 (x2) 052715 -13 2017 IW3SMU RA9MLJ -18 (x3) 101345 -13 2323 RA9MLJ RA9LY +01 (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
No CW receptions recorded for this callsign in the last 30 days.
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