PD3JW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving PD3JW, decoded by SO8OO in southeastern Poland. 169 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-08-11 and 2026-09-17.
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 169 FT8 messages attributed to PD3JW as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 20 m (45%) and 80 m (4%). Most decodes (64%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-09-17 22:24 UTC
Observed FT8 message patterns
- Attributed sample
- 169 messages
- Active dates
- 18 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -22 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 70, strong (≥ -8 dB) 51.
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 PD3JW 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 PD3JW
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 · 108 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,192 km (approx.)
- Last such locator decoded
- 2026-09-17 22:24 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 | PD3JW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 12:52 | 40m | - / -11 | PF7DKW | -9 / - | 2 | ✓ Closing fragment |
| 09-17 22:25 | 80m | - / -17 | DL3MIB | +15 / - | 11 | ✓ Closing fragment |
| 09-17 22:20 | 80m | -22 / -16 | PI4DX | +4 / -1 | 5 | ✓ Full exchange observed |
| 09-17 22:15 | 80m | -12 / -19 | G8KSH | -18 / - | 3 | ✓ Closing observed |
| 09-17 21:55 | 40m | -3 / - | M0BEW | - / - | 2 | Partial capture |
| 09-16 20:23 | 40m | - / -12 | IZ8GUU | -5 / - | 2 | ✓ Closing fragment |
| 09-16 20:07 | 40m | - / -9 | LA2GCA | -8 / - | 6 | Partial capture |
| 09-16 20:04 | 40m | - / -16 | IK4RVY | 0 / - | 2 | ✓ Closing fragment |
| 09-16 15:39 | 40m | - / - | S51PV | -10 / - | 2 | Partial capture |
| 09-16 09:17 | 40m | - / -17 | SP5EXA | +2 / - | 8 | ✓ Closing fragment |
| 09-16 09:15 | 40m | - / -19 | HA7TM | +7 / - | 4 | ✓ Closing fragment |
| 09-16 09:05 | 40m | - / -19 | PD2JV | -21 / - | 2 | Partial capture |
| 09-16 08:56 | 40m | - / -17 | HA7TM | +14 / - | 4 | Partial capture |
| 09-16 08:50 | 40m | - / -14 | DM5KK | -4 / - | 4 | ✓ Closing fragment |
| 09-16 08:30 | 40m | - / -12 | DM3XD | -13 / - | 2 | Partial capture |
| 09-16 08:23 | 40m | - / -8 | DL7DF | -15 / - | 2 | ✓ Closing fragment |
| 09-15 16:42 | 40m | -18 / - | F4CQS | - / - | 3 | Partial capture |
| 09-15 16:34 | 40m | - / -14 | DJ5WS/P | -6 / - | 2 | ✓ Closing fragment |
| 09-15 16:23 | 40m | - / -20 | HA7TM | +20 / - | 5 | Partial capture |
| 09-14 20:45 | 40m | - / -18 | GM0HTT | 0 / - | 3 | ✓ Closing fragment |
| 09-14 19:44 | 40m | - / -20 | DL1UDO | +5 / - | 2 | Partial capture |
| 09-14 19:37 | 40m | - / -18 | ON4CJU | -4 / - | 3 | ✓ Closing fragment |
| 09-14 19:33 | 40m | -10 / -19 | EM90ZMV | +4 / - | 6 | Partial capture |
| 09-14 19:28 | 40m | - / -15 | PA2MD | +6 / - | 3 | ✓ Closing fragment |
| 09-14 19:04 | 40m | - / -13 | HA0DS | -10 / - | 3 | Partial capture |
| 09-02 21:11 | 40m | -20 / +5 | OZ0ZZ | +8 / -6 | 4 | ✓ Full exchange observed |
| 09-02 20:54 | 40m | -12 / -16 | M8MFU | -10 / -9 | 6 | Partial capture |
| 09-01 21:09 | 40m | - / -14 | SP9YGD | -14 / - | 4 | ✓ Closing fragment |
| 09-01 14:47 | 40m | - / +3 | DL4ME | +2 / - | 3 | ✓ Closing fragment |
| 09-01 12:04 | 40m | - / -19 | DM1MT | -13 / - | 2 | Partial capture |
| 09-01 11:31 | 40m | - / -13 | DM1MT | -18 / - | 2 | Partial capture |
| 09-01 10:02 | 40m | - / -16 | DL2MIJ | -14 / - | 2 | Partial capture |
| 09-01 08:37 | 40m | - / -5 | F4DIA | -1 / - | 3 | ✓ Closing fragment |
| 09-01 08:01 | 40m | - / -17 | DL7GAL | -14 / - | 3 | Partial capture |
| 09-01 06:17 | 40m | - / -11 | F4FQY | -5 / - | 3 | ✓ Closing fragment |
| 09-01 05:33 | 40m | - / -12 | F4NGK | -17 / - | 6 | ✓ Closing fragment |
| 08-31 16:38 | 20m | - / - | EB3JT | +1 / - | 4 | Partial capture |
| 08-31 16:37 | 20m | - / -13 | UA4FEN | +10 / - | 2 | ✓ Closing fragment |
| 08-31 16:32 | 20m | - / -8 | HA1BF | -19 / - | 2 | ✓ Closing fragment |
| 08-31 11:13 | 20m | - / 0 | 9A170NT | +18 / - | 2 | Partial capture |
| 08-31 10:35 | 20m | - / -11 | YO2MD | -19 / - | 3 | Partial capture |
| 08-31 10:27 | 20m | - / -11 | EC5M | -12 / - | 2 | ✓ Closing fragment |
| 08-30 21:47 | 40m | - / -11 | SN40KZE | +12 / - | 2 | Partial capture |
| 08-30 21:45 | 40m | - / -10 | F4SNF | -16 / - | 2 | ✓ Closing fragment |
| 08-30 21:38 | 40m | - / - | R2AL | +15 / - | 4 | Partial capture |
| 08-30 21:33 | 40m | - / -14 | UA3AGW | +21 / - | 4 | ✓ Closing fragment |
| 08-30 20:39 | 40m | - / -8 | SN1A | -2 / - | 3 | ✓ Closing fragment |
| 08-30 20:37 | 40m | - / -4 | DD0AM | -2 / - | 3 | ✓ Closing fragment |
| 08-30 14:48 | 40m | - / -5 | F5MXH | -20 / - | 3 | ✓ Closing fragment |
| 08-28 22:12 | 40m | -9 / -17 | EA8UP | +3 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 202415 -6 1219 PD3JW IZ8GUU RR73 204500 -13 2518 PD3JW OZ7LC/A -21 205315 -13 603 GM3CQD PD3JW JO21 210000 -24 1962 MM0DXL PD3JW JO21 150445 -6 1662 PD3JW DJ0BS R-15 205615 -12 2578 EI9FV PD3JW JO21 210215 -7 2800 CQ PD3JW JO21 (x2) 210345 -13 785 YL3FW PD3JW -11 215530 -2 426 M0BEW PD3JW JO21 (x2) 111345 -13 1001 PD3JW PD1CIS RR73 125215 -10 2341 PD3JW PF7DKW -11 (x2) 142715 -15 585 PD3JW DB2BJT RR73
UTC dB Audio Message 222130 +4 2048 PD3JW PI4DX RR73 222145 -20 2048 PI4DX PD3JW 73 222415 -20 701 IQ0AAI PD3JW JO21 222445 -18 701 CQ PD3JW JO21 222500 +12 794 PD3JW DL3MIB JN57 (x11)
UTC dB Audio Message 111345 +19 2796 PD3JW 9A170NT +00 163230 -21 1344 PD3JW HA1BF -08 (x2) 163730 +10 2305 PD3JW UA4FEN -13 (x2) 163830 -1 2306 PD3JW EB3JT JN01 (x4) 171000 -4 1727 CQ PD3JW JO21 (x6)
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee