YL3ATJ — 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 YL3ATJ, decoded by SO8OO in southeastern Poland. 904 FT8 messages attributed to this token as transmitter, on 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-23 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 904 FT8 messages attributed to YL3ATJ as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (67%) fell within the six-hour window 06:00-12:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 904 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -18 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 199, moderate (-15 to -9 dB) 482, strong (≥ -8 dB) 223.
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 YL3ATJ 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 YL3ATJ
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
- KO27 · 612 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 867 km (approx.)
- Last such locator decoded
- 2026-11-05 07:33 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 | YL3ATJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 07:33 | 40m | -14 / - | UT2SQ | -6 / +1 | 5 | Partial capture |
| 11-05 07:32 | 40m | -14 / - | MI0TMW | - / - | 3 | Partial capture |
| 11-05 07:31 | 40m | -11 / - | HB9TWU | - / - | 2 | Partial capture |
| 11-05 07:24 | 40m | -6 / - | MM0JTV | - / - | 3 | Partial capture |
| 11-05 07:22 | 40m | -7 / - | G0OYQ | - / - | 3 | Partial capture |
| 11-05 07:20 | 40m | -10 / - | DB2TE | - / - | 4 | Partial capture |
| 11-05 07:12 | 40m | -14 / - | IK2SAR | - / - | 2 | Partial capture |
| 11-05 07:08 | 40m | -13 / -3 | OM3WFH | -4 / +1 | 3 | ✓ Full exchange observed |
| 11-05 07:01 | 40m | -16 / - | IK2SAR | - / - | 7 | Partial capture |
| 11-05 06:54 | 40m | -7 / - | SP3EMA | - / -14 | 3 | Partial capture |
| 11-05 06:52 | 40m | -12 / -4 | SP4MPH | -6 / -1 | 7 | ✓ Full exchange observed |
| 11-05 06:51 | 40m | - / - | F5PBG | -12 / - | 2 | Partial capture |
| 11-05 06:50 | 40m | -16 / - | RA3LBK | - / +2 | 3 | ✓ Closing fragment |
| 11-05 06:46 | 40m | -11 / - | TF5B | - / -13 | 3 | ✓ Closing fragment |
| 11-05 06:44 | 40m | -6 / - | 2E0FHM | - / - | 4 | Partial capture |
| 11-05 06:42 | 40m | -11 / -14 | F1PWS | -7 / - | 4 | ✓ Closing observed |
| 11-05 06:40 | 40m | - / -15 | S55A | -4 / - | 2 | ✓ Closing fragment |
| 11-05 06:38 | 40m | -6 / - | IK4JPP | - / -1 | 2 | Partial capture |
| 11-05 06:37 | 40m | -7 / +10 | OH5KNL | +4 / +5 | 5 | ✓ Full exchange observed |
| 11-05 06:32 | 40m | -10 / -21 | DJ2PW | -5 / -5 | 8 | ✓ Full exchange observed |
| 11-05 06:28 | 40m | - / - | F5PBG | -4 / - | 2 | Partial capture |
| 11-05 06:28 | 40m | -9 / -17 | F4DIA | -9 / -15 | 9 | ✓ Full exchange observed |
| 11-05 06:26 | 40m | -4 / - | EB3DBR | - / -9 | 2 | Partial capture |
| 11-05 06:23 | 40m | -7 / - | UR9QQ | - / -4 | 3 | Partial capture |
| 11-05 06:22 | 40m | - / -9 | SP9UPH | +3 / - | 3 | ✓ Closing fragment |
| 11-05 06:21 | 40m | - / - | YO3GNF | 0 / - | 2 | Partial capture |
| 11-05 06:16 | 40m | - / -9 | RY2B | -19 / - | 2 | ✓ Closing fragment |
| 11-05 06:12 | 40m | -13 / - | OZ1KZX | - / - | 2 | ✓ Closing fragment |
| 11-05 06:08 | 40m | - / -15 | IU5AWQ | -4 / - | 2 | ✓ Closing fragment |
| 11-05 06:04 | 40m | -14 / - | UA3LRN | - / - | 4 | Partial capture |
| 11-05 06:02 | 40m | -10 / -10 | R6OJ | -10 / -11 | 6 | ✓ Full exchange observed |
| 11-05 06:00 | 40m | -14 / -17 | G0BLB | -7 / -4 | 6 | ✓ Full exchange observed |
| 11-05 05:58 | 40m | -7 / -13 | UT5MB | -9 / -3 | 5 | ✓ Full exchange observed |
| 11-05 05:54 | 40m | - / - | SP5EXA | -13 / - | 2 | Partial capture |
| 11-05 05:52 | 40m | - / -22 | SV8NAJ | -20 / - | 2 | Partial capture |
| 11-05 05:52 | 40m | - / -13 | UT5MB | -7 / - | 2 | Partial capture |
| 11-04 19:29 | 40m | - / - | F5PBG | -5 / - | 3 | Partial capture |
| 11-04 16:38 | 40m | - / -15 | DM1SV | -5 / - | 5 | Partial capture |
| 11-04 16:37 | 40m | -2 / - | R8PG | - / - | 2 | Partial capture |
| 11-04 16:36 | 40m | -6 / - | DM1SV | - / - | 2 | Partial capture |
| 11-04 16:34 | 40m | -4 / -4 | R3PAA | -10 / +5 | 4 | ✓ Full exchange observed |
| 11-04 16:32 | 40m | -10 / - | EX8ABR | - / - | 4 | Partial capture |
| 11-04 16:31 | 40m | -4 / - | LA1H | - / - | 2 | Partial capture |
| 11-04 16:28 | 40m | -8 / - | SM2OTU | - / - | 2 | Partial capture |
| 11-04 16:27 | 40m | -12 / - | DL3IAK | - / +2 | 2 | ✓ Closing fragment |
| 11-04 16:24 | 40m | -8 / - | EX8ABR | - / - | 2 | Partial capture |
| 11-04 16:15 | 40m | -4 / - | YO7CFD | - / - | 4 | Partial capture |
| 11-04 16:08 | 40m | -8 / - | HA8CE | - / - | 2 | Partial capture |
| 11-04 16:02 | 40m | -14 / - | EX8ABR | - / - | 4 | Partial capture |
| 11-04 16:00 | 40m | -8 / -17 | IZ4HMQ | -8 / -14 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 072330 -7 589 G0OYQ YL3ATJ KO27 072430 -7 1052 MM0JTV YL3ATJ KO27 (x3) 072615 -11 1236 HB9TWU YL3ATJ KO27 (x3) 073230 -12 1751 MI0TMW YL3ATJ KO27 (x3) 073345 -6 1755 YL3ATJ UT2SQ KN29 (x3) 073500 -14 1751 UT2SQ YL3ATJ +01 (x2)
UTC dB Audio Message 104230 -20 2090 YL3ATJ PI4DX RR73 112000 -1 1814 YL3ATJ EA5KB +00 (x2) 123900 +0 2541 YL3ATJ F1PBZ -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
No CW receptions recorded for this callsign in the last 30 days.
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