PD4VL — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving PD4VL, decoded by SO8OO in southeastern Poland. 282 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-31.
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 282 FT8 messages attributed to PD4VL as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (65%), followed by 10 m (35%). Most decodes (51%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-08-31 17:08 UTC
Observed FT8 message patterns
- Attributed sample
- 282 messages
- Active dates
- 22 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -20 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 92, moderate (-15 to -9 dB) 83, strong (≥ -8 dB) 107.
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 PD4VL 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 PD4VL
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
- JO22 · 215 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,201 km (approx.)
- Last such locator decoded
- 2026-08-30 08:48 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 | PD4VL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 17:08 | 10m | - / -18 | PP5CF | -12 / - | 2 | ✓ Closing fragment |
| 09-13 15:44 | 10m | - / -14 | PY4BSC | -20 / - | 4 | ✓ Closing fragment |
| 09-10 16:45 | 40m | - / - | PA3GDL | -8 / - | 3 | Partial capture |
| 08-31 17:07 | 20m | -8 / - | SM0WLL | - / -26 | 2 | Partial capture |
| 08-30 08:39 | 20m | -11 / - | VK3HA | - / - | 2 | Partial capture |
| 08-30 08:09 | 20m | +7 / - | VK2ZR | - / - | 7 | Partial capture |
| 08-30 08:07 | 20m | +5 / - | Z62NS | - / - | 3 | Partial capture |
| 08-29 16:51 | 20m | -5 / -23 | VR2VOG | -20 / - | 5 | ✓ Closing observed |
| 08-29 16:47 | 20m | -14 / - | BD4WBT | - / - | 2 | Partial capture |
| 08-29 06:33 | 20m | - / -13 | VK2BGL | -7 / - | 3 | ✓ Closing fragment |
| 08-28 11:24 | 10m | -10 / - | RI1FJL | - / - | 2 | Partial capture |
| 08-28 11:18 | 10m | -8 / - | RI1FJL | - / - | 2 | Partial capture |
| 08-23 15:41 | 20m | -14 / - | YB7FII | - / - | 3 | Partial capture |
| 08-23 08:40 | 20m | -16 / - | TA2EE | - / -14 | 2 | ✓ Closing fragment |
| 08-23 08:36 | 20m | -12 / - | VK4QG | - / - | 3 | ✓ Closing fragment |
| 08-23 08:30 | 20m | -10 / - | VK6BAD | - / - | 2 | ✓ Closing fragment |
| 08-21 16:46 | 20m | -6 / - | E25KFR | - / - | 2 | Partial capture |
| 08-21 09:23 | 20m | -11 / - | OJ0YL | - / - | 4 | Partial capture |
| 08-21 09:21 | 20m | -2 / - | MM0VIK | - / - | 2 | Partial capture |
| 08-21 07:59 | 20m | -11 / - | VK3SC | - / - | 3 | Partial capture |
| 08-21 06:42 | 20m | -17 / - | VK3YW | - / - | 2 | Partial capture |
| 08-16 11:06 | 10m | -12 / - | Z61DX | -8 / - | 3 | ✓ Closing observed |
| 08-16 11:03 | 10m | -10 / - | Z61DX | - / - | 2 | Partial capture |
| 08-04 17:02 | 20m | -8 / - | BG0FQU | - / - | 2 | Partial capture |
| 08-03 16:46 | 20m | -19 / - | A61SD | - / - | 3 | Partial capture |
| 08-02 10:59 | 20m | -11 / - | VA3DIF | - / - | 2 | ✓ Closing fragment |
| 08-02 10:57 | 20m | +4 / - | K4RUM | - / -11 | 3 | ✓ Closing fragment |
| 08-02 10:52 | 20m | -7 / - | F4JJS/P | - / - | 5 | ✓ Closing fragment |
| 07-31 17:27 | 20m | -9 / - | BH2WTV | - / -12 | 7 | ✓ Closing fragment |
| 07-31 16:36 | 20m | -19 / - | TF3PPN | - / - | 2 | Partial capture |
| 07-31 13:17 | 20m | -14 / - | K0DTM | - / - | 3 | Partial capture |
| 07-31 08:15 | 20m | 0 / - | VK6BAD | - / -22 | 4 | Partial capture |
| 07-31 07:57 | 20m | -20 / - | VK2GQR | - / - | 2 | Partial capture |
| 07-31 07:49 | 20m | -18 / - | VK2GQR | - / - | 6 | Partial capture |
| 07-31 07:43 | 20m | -15 / - | VK2GQR | - / - | 4 | Partial capture |
| 07-31 07:25 | 20m | -19 / - | VK2GQR | - / - | 15 | Partial capture |
| 07-31 07:14 | 20m | -15 / - | VK2GQR | - / - | 14 | Partial capture |
| 07-31 07:01 | 20m | -17 / - | VK2GQR | - / - | 8 | Partial capture |
| 07-31 06:51 | 20m | -15 / - | VK2GQR | - / - | 2 | Partial capture |
| 07-31 06:47 | 20m | -19 / - | VK2GQR | - / - | 3 | Partial capture |
| 07-31 06:19 | 20m | -8 / - | XE2V | - / - | 2 | Partial capture |
| 07-03 08:25 | 20m | -21 / - | K2L | - / - | 4 | Partial capture |
| 06-25 16:52 | 10m | -6 / -10 | PR2CC | -4 / - | 5 | ✓ Closing observed |
| 06-25 16:49 | 10m | -20 / - | XQ3SK | - / -14 | 2 | Partial capture |
| 06-25 16:39 | 10m | -8 / - | PU2PZE | - / - | 3 | ✓ Closing fragment |
| 06-25 16:37 | 10m | - / -12 | PP5BP | -21 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 110300 -12 787 Z61DX PD4VL JO22 (x3) 110645 -8 786 PD4VL Z61DX RR73 110700 -9 787 Z61DX PD4VL 73 111815 -7 445 RI1FJL PD4VL JO22 (x4) 154400 -21 1862 PD4VL PY4BSC -14 (x4) 170800 -12 974 PD4VL PP5CF -18 (x2)
UTC dB Audio Message 164545 -3 1919 PD4VL PA3GDL JO22 (x3)
UTC dB Audio Message 080815 +7 1592 Z62NS PD4VL JO22 080915 +5 1593 VK2ZR PD4VL JO22 (x7) 083415 -11 1592 VK4QG PD4VL JO22 083900 -10 1593 VK3HA PD4VL JO22 (x2) 084800 -10 1593 VK2ZR PD4VL JO22 170245 -8 1002 PD4VL SM0WLL -17 170730 -7 1275 SM0WLL PD4VL R-26 (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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