ON4LDZ — 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 ON4LDZ, decoded by SO8OO in southeastern Poland. 361 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 29 UTC dates in the available aggregate history. Observed between 2026-07-29 and 2026-11-01.
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 361 FT8 messages attributed to ON4LDZ as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (45%), followed by 60 m (42%) and 40 m (8%). Most decodes (77%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-11-01 00:45 UTC
Observed FT8 message patterns
- Attributed sample
- 361 messages
- Active dates
- 29 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -17 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 50, moderate (-15 to -9 dB) 174, strong (≥ -8 dB) 137.
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 ON4LDZ 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 ON4LDZ
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
- JO20 · 246 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,194 km (approx.)
- Last such locator decoded
- 2026-11-01 00:45 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 | ON4LDZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-01 00:45 | 60m | -7 / - | 6W/IK2HKT | - / - | 2 | Partial capture |
| 11-01 00:41 | 60m | -9 / - | LZ1GC | - / - | 3 | Partial capture |
| 11-01 00:37 | 60m | -10 / - | 4X1UF | - / - | 4 | Partial capture |
| 11-01 00:22 | 60m | -7 / - | G4KVI | - / - | 2 | Partial capture |
| 11-01 00:09 | 60m | -10 / -19 | IW9FRA | -12 / - | 3 | ✓ Closing observed |
| 11-01 00:01 | 60m | - / -20 | EA5IGV | -2 / - | 2 | ✓ Closing fragment |
| 10-31 23:59 | 60m | -6 / - | CT7BPO | - / - | 3 | Partial capture |
| 10-31 19:56 | 40m | - / -8 | EA4D | -11 / - | 2 | ✓ Closing fragment |
| 10-27 23:09 | 40m | - / -14 | R4ADJ | -7 / - | 5 | Partial capture |
| 10-26 20:51 | 60m | -10 / - | SQ8AA | - / - | 2 | Partial capture |
| 10-24 22:45 | 80m | - / - | EA1IOK | -6 / - | 2 | Partial capture |
| 10-24 22:42 | 80m | - / -19 | DO5HOK | -7 / - | 2 | ✓ Closing fragment |
| 10-24 22:18 | 80m | - / -14 | DD7EE | -1 / - | 2 | ✓ Closing fragment |
| 10-24 22:00 | 80m | - / -15 | ON4CJU | -6 / - | 2 | ✓ Closing fragment |
| 10-24 21:58 | 80m | - / -12 | ON3BEN | -12 / - | 2 | ✓ Closing fragment |
| 10-24 21:30 | 60m | - / -17 | EG46PPA | -10 / - | 2 | Partial capture |
| 10-24 21:22 | 60m | - / -23 | EA3HZE | -12 / - | 4 | ✓ Closing fragment |
| 10-24 19:58 | 60m | - / -11 | IU4PTA | -10 / - | 2 | ✓ Closing fragment |
| 10-24 19:38 | 60m | - / -16 | ES6RQ | +4 / - | 2 | ✓ Closing fragment |
| 10-24 19:29 | 60m | - / -8 | DL1AQU | -11 / - | 3 | ✓ Closing fragment |
| 10-24 19:26 | 60m | - / -5 | IK4CBO | -8 / - | 2 | ✓ Closing fragment |
| 10-24 19:23 | 60m | - / -7 | SP9YGD | -11 / - | 2 | ✓ Closing fragment |
| 10-23 22:07 | 60m | -11 / -11 | EA2A | -2 / - | 3 | ✓ Closing observed |
| 10-23 21:49 | 60m | -8 / - | LA5UKA | - / - | 2 | Partial capture |
| 10-23 21:48 | 60m | -9 / -14 | F9IE | -19 / -3 | 5 | ✓ Full exchange observed |
| 10-23 21:43 | 60m | - / -12 | IK6BSN | +2 / - | 2 | ✓ Closing fragment |
| 10-23 21:37 | 60m | -22 / - | 4L7T | - / - | 2 | Partial capture |
| 10-23 21:00 | 60m | - / -21 | EH6DSY | -12 / - | 2 | ✓ Closing fragment |
| 10-23 20:57 | 60m | - / -18 | EA1SAL | -10 / - | 3 | ✓ Closing fragment |
| 10-23 20:49 | 60m | -7 / - | IK2EST | - / +4 | 2 | ✓ Closing fragment |
| 10-23 20:41 | 60m | -10 / - | F5OIH | -11 / -5 | 3 | ✓ Closing observed |
| 10-23 20:33 | 60m | -9 / - | OZ5AGJ | - / - | 3 | Partial capture |
| 10-23 20:14 | 60m | - / +3 | F1TXI | +6 / - | 2 | ✓ Closing fragment |
| 10-23 19:58 | 60m | - / -14 | DK2MAX | -8 / - | 2 | ✓ Closing fragment |
| 10-19 21:49 | 60m | - / -20 | EA4GRZ | -14 / - | 8 | Partial capture |
| 10-19 21:48 | 60m | -12 / -19 | IW5DNZ | -15 / -9 | 3 | ✓ Full exchange observed |
| 10-19 21:37 | 60m | - / -18 | E74K | -8 / - | 3 | ✓ Closing fragment |
| 10-18 21:23 | 60m | - / -5 | OK4KOP | +4 / - | 2 | ✓ Closing fragment |
| 10-18 21:21 | 60m | -8 / - | EB7BXN | - / - | 3 | Partial capture |
| 10-18 21:15 | 60m | -9 / - | SQ9GAI | - / +3 | 4 | Partial capture |
| 10-18 21:11 | 60m | -8 / - | YE4FNN | - / - | 2 | Partial capture |
| 10-18 21:09 | 60m | -10 / - | SP7AH | - / -3 | 3 | ✓ Closing fragment |
| 10-18 21:01 | 60m | -8 / - | GM4YTD | -11 / - | 3 | ✓ Closing observed |
| 10-18 20:59 | 60m | -18 / - | SQ7FSZ/QRP | - / - | 2 | Partial capture |
| 10-17 21:06 | 60m | -9 / - | <...> | - / - | 4 | Partial capture |
| 10-17 21:01 | 60m | -7 / -10 | G0ABI | +6 / - | 4 | ✓ Full exchange observed |
| 10-17 20:57 | 60m | - / -10 | G1XOW | +6 / - | 2 | ✓ Closing fragment |
| 10-17 20:55 | 60m | -13 / -3 | OZ7CL | -18 / -4 | 3 | ✓ Full exchange observed |
| 10-16 22:07 | 80m | - / -1 | DR800WE | +6 / - | 2 | Partial capture |
| 10-16 22:01 | 60m | - / -16 | IK8WEJ | -9 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 221645 -4 489 ON4LDZ YO4NF RR73 222500 -8 2606 ON4LDZ RD3FY -17 (x4) 223545 -10 2488 ON4LDZ R8CW -20 230930 -6 2602 ON4LDZ R4ADJ -14 (x5) 195600 -11 1455 ON4LDZ EA4D -08 (x2) 215530 -18 1088 ON4LDZ EA7KIE -18 215130 -19 1543 ON4LDZ CT7AXN RR73
UTC dB Audio Message 002315 -8 484 OK1BN ON4LDZ JO20 003245 -13 383 CQ ON4LDZ JO20 (x5) 003745 -10 384 4X1UF ON4LDZ JO20 (x4) 004115 -9 434 LZ1GC ON4LDZ JO20 (x3) 004515 -8 584 6W/IK2HKT ON4LDZ JO20 (x2)
UTC dB Audio Message 215400 -6 905 ON4LDZ G8OCV RR73 215745 -8 506 SP6SR ON4LDZ JO20 215845 -10 1788 ON4LDZ ON3BEN -12 (x2) 220015 -7 1192 ON4LDZ ON4CJU -15 (x2) 221715 -13 509 UW5KW ON4LDZ JO20 221830 -5 894 ON4LDZ DD7EE -14 (x2) 221930 -13 1730 ON4LDZ ON1BH -14 224245 -8 809 ON4LDZ DO5HOK -19 (x2) 224500 -10 347 LA1KUA ON4LDZ JO20 224515 -7 503 ON4LDZ EA1IOK IN62 (x2)
UTC dB Audio Message 161300 -21 1459 ON4LDZ IW4DNI RR73 161315 -23 1797 IW4DNI ON4LDZ R-07 (x3) 161630 -20 1797 CQ ON4LDZ JO20 161730 -20 1797 RY6O ON4LDZ -18 (x2) 161930 -20 1797 CQ ON4LDZ JO20 (x2) 120030 -9 1902 ON4LDZ 9K2WA -17 125800 -15 969 ON4LDZ 7Z1IS -12 130500 -15 805 ON4LDZ RR73; RA4FOC <...> -08 115045 -21 1971 ON4LDZ ON4MDW -09 (x2)
UTC dB Audio Message 180700 -12 629 OE3SGU ON4LDZ R-09 181100 -11 1765 ON4LDZ LZ2CC -02 181545 +17 2567 ON4LDZ EA3DVP -23 (x5) 182230 -13 628 UA3AGW ON4LDZ R+03 182730 +13 628 ON4LDZ DK8HC/P -12 (x3) 183245 -7 628 EA8BYZ ON4LDZ JO20 (x2) 183715 -12 628 R9LM ON4LDZ JO20 190045 -2 757 ON4LDZ IU3MAG RR73
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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