RA4UEU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA4UEU, decoded by SO8OO in southeastern Poland. 87 FT8 messages attributed to this token as transmitter, on 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-16 and 2026-08-20.
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 87 FT8 messages attributed to RA4UEU as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (77%) fell within the six-hour window 10:00-16:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 87 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -17 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 47, strong (≥ -8 dB) 27.
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 RA4UEU 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 RA4UEU
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
- LO14 · 45 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,524 km (approx.)
- Last such locator decoded
- 2026-08-20 10:12 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 | RA4UEU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-21 13:33 | 20m | - / - | DL6EL | +11 / - | 3 | Partial capture |
| 08-20 10:13 | 20m | -8 / -2 | RA8AM | -15 / -1 | 7 | ✓ Full exchange observed |
| 08-20 10:11 | 20m | - / -5 | RX7T | -4 / - | 3 | Partial capture |
| 08-20 10:06 | 20m | -7 / -5 | MI0TXM | -24 / -24 | 2 | Partial capture |
| 07-31 04:09 | 20m | -7 / - | DH2RL | - / -7 | 2 | ✓ Closing fragment |
| 07-26 11:31 | 20m | - / - | F5IXN | -11 / - | 2 | Partial capture |
| 07-26 11:11 | 20m | - / -10 | RA6OY | +6 / - | 2 | ✓ Closing fragment |
| 07-24 14:36 | 20m | - / -17 | A71AT | -4 / - | 3 | ✓ Closing fragment |
| 07-24 14:23 | 20m | - / - | LZ2SPD | -13 / - | 2 | Partial capture |
| 07-24 09:56 | 20m | - / - | YT1DDL | -12 / - | 2 | Partial capture |
| 07-23 09:55 | 10m | - / - | IW3GJF | -3 / - | 2 | Partial capture |
| 07-22 09:17 | 10m | - / -12 | IK4LZH | +6 / - | 3 | ✓ Closing fragment |
| 07-22 04:51 | 20m | - / -16 | IK4TVP | -5 / - | 5 | Partial capture |
| 07-21 15:16 | 20m | -9 / - | BA8BLK | - / -14 | 4 | Partial capture |
| 07-21 15:14 | 20m | -12 / -11 | TA2ED | -14 / - | 2 | ✓ Closing observed |
| 07-21 15:07 | 20m | -6 / - | UA9UFJ | - / -8 | 3 | Partial capture |
| 07-21 15:03 | 20m | -11 / - | BI4MPH | - / - | 3 | ✓ Closing fragment |
| 07-20 05:00 | 20m | - / -12 | DL6UM | -6 / - | 3 | Partial capture |
| 07-20 04:56 | 20m | - / -17 | DL6UM | -3 / - | 4 | Partial capture |
| 07-19 10:26 | 10m | - / - | RZ5D | -6 / - | 2 | ✓ Closing fragment |
| 07-19 10:15 | 10m | - / -6 | R7DX | -11 / - | 3 | Partial capture |
| 07-19 05:03 | 10m | - / +8 | R6ML | -14 / - | 3 | ✓ Closing fragment |
| 07-18 10:42 | 10m | - / -14 | F1ODM | -5 / - | 4 | ✓ Closing fragment |
| 07-16 14:16 | 20m | -13 / -17 | RN6MA | -1 / -20 | 5 | ✓ Full exchange observed |
| 07-16 14:14 | 20m | -18 / - | BI1HJR | - / -10 | 2 | Partial capture |
| 07-16 14:10 | 20m | -12 / - | JK1DMX | - / -21 | 2 | ✓ Closing fragment |
| 07-16 14:06 | 20m | -13 / - | BA8BLK | - / -16 | 3 | Partial capture |
| 07-16 13:55 | 20m | -18 / - | JR5DFW | - / -12 | 2 | ✓ Closing fragment |
| 07-16 13:51 | 20m | -16 / - | BD4JN | - / -13 | 2 | ✓ Closing fragment |
| 07-16 13:48 | 20m | -14 / - | DL6UM | - / -16 | 2 | Partial capture |
| 07-16 13:47 | 20m | -13 / - | EA1FUB | - / -24 | 2 | ✓ Closing fragment |
| 07-16 13:45 | 20m | -14 / - | R2FDS | - / -19 | 3 | Partial capture |
| 07-15 15:59 | 20m | - / 0 | RA9CMO | -4 / - | 7 | ✓ Closing fragment |
| 07-14 09:53 | 10m | - / -12 | R6DOB | -7 / - | 3 | Partial capture |
| 07-12 10:36 | 20m | - / - | EA3GXK | -14 / - | 2 | Partial capture |
| 07-12 10:21 | 20m | - / - | PD1HPB | -13 / - | 7 | Partial capture |
| 07-12 10:21 | 20m | - / -13 | PD2WL | -13 / - | 8 | ✓ Closing fragment |
| 07-12 10:21 | 20m | - / - | SP1COU | -21 / - | 3 | Partial capture |
| 07-11 10:28 | 20m | - / - | PD1HPB | -16 / - | 2 | Partial capture |
| 07-11 10:28 | 20m | - / -14 | IZ0AEZ | -6 / - | 3 | ✓ Closing fragment |
| 07-11 10:23 | 20m | - / - | DL1R | +1 / - | 10 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 101200 -4 2317 RA4UEU RX7T -03 101215 -12 999 CQ RA4UEU LO14 101230 -3 2317 RA4UEU RX7T -02 101315 -6 998 PA1PXL RA4UEU -18 101330 -14 1480 RA4UEU RA8AM -02 (x2) 101415 -6 998 RA8AM RA4UEU R-01 (x3) 101530 -15 1480 RA4UEU RA8AM RR73 101545 -12 997 RA8AM RA4UEU 73 132830 +11 993 RA4UEU F1ODM +02 133300 +13 2471 RA4UEU DL6EL JN57 (x3)
UTC dB Audio Message 104330 -4 995 RA4UEU F1ODM -14 (x2) 050315 -13 1005 RA4UEU R6ML LN17 (x3) 101545 -7 1601 RA4UEU R7DX KN84 (x3) 102645 -7 1166 RA4UEU RZ5D KN75 (x2) 091715 +8 493 RA4UEU IK4LZH JN54 (x3) 095545 -5 2550 RA4UEU IW3GJF JN55 (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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