PD7LJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving PD7LJ, decoded by SO8OO in southeastern Poland. 802 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-19 and 2026-09-20.
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 802 FT8 messages attributed to PD7LJ as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 802 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -13 to +3 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 34, moderate (-15 to -9 dB) 174, strong (≥ -8 dB) 594.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with PD7LJ 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 PD7LJ
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
- JO21 · 572 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,192 km (approx.)
- Last such locator decoded
- 2026-09-20 07:25 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 | PD7LJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 07:47 | 40m | -10 / - | F4MOJ/P | - / -11 | 2 | ✓ Closing fragment |
| 09-20 07:42 | 40m | -18 / - | PD1ADA | -18 / - | 2 | Partial capture |
| 09-20 07:23 | 40m | -11 / 0 | DF9HT/P | -8 / - | 8 | ✓ Closing observed |
| 09-20 07:10 | 40m | -18 / - | ON4CFC | - / -20 | 2 | ✓ Closing fragment |
| 09-20 07:05 | 40m | -20 / -17 | DF2KD | -14 / -19 | 5 | ✓ Full exchange observed |
| 09-20 07:02 | 40m | -5 / - | ZL1VAH | - / -2 | 5 | ✓ Closing fragment |
| 09-20 07:00 | 40m | -7 / -6 | IZ1JLP | -6 / - | 2 | Partial capture |
| 09-20 06:46 | 40m | -6 / - | PB2A | - / - | 2 | Partial capture |
| 09-20 06:43 | 40m | -14 / - | PD1HPB | - / - | 3 | Partial capture |
| 09-20 06:37 | 40m | -16 / -20 | DA2DA | -8 / -15 | 11 | ✓ Full exchange observed |
| 09-20 06:34 | 40m | -15 / - | RT4A/P | - / -3 | 2 | Partial capture |
| 09-20 06:28 | 40m | -8 / - | KJ5PTH | - / - | 11 | Partial capture |
| 09-20 06:26 | 40m | -5 / - | PD0PMF | - / -11 | 3 | ✓ Closing fragment |
| 09-20 06:21 | 40m | -8 / - | ZL2NU | - / -18 | 2 | ✓ Closing fragment |
| 09-20 06:14 | 40m | -15 / - | WV5A | - / - | 2 | Partial capture |
| 09-20 06:07 | 40m | -5 / - | RK4UZ | - / - | 10 | Partial capture |
| 09-20 06:05 | 40m | - / -5 | HB9EFK | +12 / - | 2 | ✓ Closing fragment |
| 09-20 06:03 | 40m | -6 / - | F1DXP | - / -16 | 3 | Partial capture |
| 09-20 05:54 | 40m | -3 / -6 | OE2AFX | -20 / -11 | 8 | ✓ Full exchange observed |
| 09-20 05:52 | 40m | -9 / - | SP4MPH | - / -12 | 2 | ✓ Closing fragment |
| 09-20 05:46 | 40m | -4 / - | SQ8V | - / -4 | 4 | ✓ Closing fragment |
| 09-20 05:43 | 40m | -11 / - | EA5ISA | - / -7 | 3 | ✓ Closing fragment |
| 09-20 05:36 | 40m | -8 / - | W5TVC | - / - | 3 | Partial capture |
| 09-20 05:33 | 40m | -12 / -6 | SP5KOR | -8 / -7 | 5 | ✓ Full exchange observed |
| 09-20 05:29 | 40m | 0 / - | W6I | - / - | 4 | Partial capture |
| 09-20 05:28 | 40m | -5 / - | WC4Y | - / - | 2 | Partial capture |
| 09-20 05:27 | 40m | -8 / - | OA4ENG | - / -6 | 2 | ✓ Closing fragment |
| 09-20 05:24 | 40m | -5 / +3 | HG0NPJ | +7 / -2 | 3 | ✓ Full exchange observed |
| 09-20 05:22 | 40m | -2 / -18 | YO6BLM | +13 / -6 | 6 | ✓ Full exchange observed |
| 09-20 05:21 | 40m | -9 / - | KJ5PTH | - / - | 2 | Partial capture |
| 09-20 05:16 | 40m | -2 / - | W3EWL/QRP | - / -11 | 5 | Partial capture |
| 09-20 05:14 | 40m | -9 / - | RN3TT | -15 / -16 | 4 | ✓ Closing observed |
| 09-20 05:12 | 40m | -10 / - | AD9GE | - / -20 | 4 | ✓ Closing fragment |
| 09-20 05:10 | 40m | -7 / - | N5LPT | - / -23 | 4 | ✓ Closing fragment |
| 09-20 05:05 | 40m | -3 / - | KJ5PTH | - / - | 5 | Partial capture |
| 09-20 05:03 | 40m | -20 / - | HA3GB | -1 / -9 | 3 | ✓ Closing observed |
| 09-20 05:00 | 40m | -6 / -19 | R3KAB | -4 / -12 | 6 | ✓ Full exchange observed |
| 09-20 04:54 | 40m | -4 / -16 | SV2CCJ | -4 / - | 6 | ✓ Closing observed |
| 09-20 04:51 | 40m | -9 / -1 | SV2HTW | +6 / -4 | 5 | ✓ Full exchange observed |
| 09-20 04:41 | 40m | -4 / -13 | RD4HX | -17 / -18 | 10 | Partial capture |
| 09-20 04:39 | 40m | -7 / -14 | LZ936BA | +8 / -5 | 3 | Partial capture |
| 09-20 04:38 | 40m | -6 / - | EA5RD | - / - | 3 | Partial capture |
| 09-20 04:35 | 40m | -6 / - | KJ5PTH | - / - | 2 | Partial capture |
| 09-20 04:26 | 40m | -1 / - | LU1XLI | - / - | 12 | Partial capture |
| 09-20 04:17 | 40m | -9 / - | KJ3LLY | - / -13 | 15 | Partial capture |
| 09-20 04:16 | 40m | -5 / - | IU6QTH | -17 / -16 | 4 | ✓ Closing observed |
| 09-20 04:15 | 40m | -4 / -6 | LZ1ON | -4 / - | 3 | Partial capture |
| 09-20 04:08 | 40m | -7 / - | IT9BYL | - / - | 6 | Partial capture |
| 09-20 04:07 | 40m | +5 / - | EU7SV | - / -4 | 3 | ✓ Closing fragment |
| 09-20 04:03 | 40m | +1 / - | VA3PKU | - / -18 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 071300 -17 1599 AO5PAZ PD7LJ 73 071330 -18 1308 G4YTU PD7LJ JO21 072330 -12 741 DF9HT/P PD7LJ JO21 (x5) 072545 -7 1539 PD7LJ DF9HT/P +00 (x2) 072630 -6 741 DF9HT/P PD7LJ 73 074230 -18 1997 PD7LJ PD1ADA JO21 074315 -18 1345 PD1ADA PD7LJ RRR 074400 -12 1037 PD7LJ ON1DGN -09 074730 -11 639 F4MOJ/P PD7LJ R-11 (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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