PI4DX — 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 PI4DX, decoded by SO8OO in southeastern Poland. 52,980 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 124 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.
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 52,980 FT8 messages attributed to PI4DX as the transmitting token by decoded message structure across 124 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (35%), followed by 80 m (30%) and 20 m (13%). The busiest six-hour window was 20:00-02:00 UTC, containing 49% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was +1 dB.
Overview
Bands
Last attributed message: 2026-10-22 07:32 UTC
Observed FT8 message patterns
- Attributed sample
- 52,980 messages
- Active dates
- 124 UTC dates
- Estimated median S/N
- +1 dB
- Estimated 10th-90th percentile
- -12 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2,704, moderate (-15 to -9 dB) 6,090, strong (≥ -8 dB) 44,186.
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 PI4DX 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 PI4DX
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 · 37,224 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,192 km (approx.)
- Last such locator decoded
- 2026-10-22 07:29 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 | PI4DX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 07:30 | 40m | -12 / - | ON1JP | - / -12 | 6 | Partial capture |
| 10-22 07:21 | 40m | -11 / - | EA2BUW | - / -2 | 5 | ✓ Closing fragment |
| 10-22 07:18 | 40m | -4 / - | HI3LER | - / -11 | 2 | ✓ Closing fragment |
| 10-22 07:18 | 40m | -4 / -2 | YL3ASK | -15 / -25 | 9 | ✓ Full exchange observed |
| 10-22 07:06 | 40m | -10 / - | KE5ETC | - / - | 3 | ✓ Closing fragment |
| 10-22 07:03 | 40m | -10 / - | N9CBW | - / -4 | 3 | ✓ Closing fragment |
| 10-22 06:51 | 40m | -9 / - | TO4A | - / - | 14 | Partial capture |
| 10-22 06:45 | 40m | -16 / 0 | TO4A | -8 / - | 3 | Partial capture |
| 10-22 06:36 | 40m | -10 / - | TO4A | - / - | 3 | Partial capture |
| 10-22 06:32 | 40m | -12 / - | TO4A | - / - | 3 | Partial capture |
| 10-22 04:53 | 160m | +8 / - | OZ1BEC | -15 / -19 | 8 | ✓ Full exchange observed |
| 10-22 04:37 | 60m | -12 / - | KD3CLB | - / -14 | 2 | ✓ Closing fragment |
| 10-22 04:25 | 60m | -4 / - | HI3K | - / -3 | 2 | ✓ Closing fragment |
| 10-22 04:24 | 60m | -8 / - | KB9ZM | - / -5 | 2 | ✓ Closing fragment |
| 10-22 04:17 | 60m | -9 / - | DJ1NE | - / -17 | 2 | ✓ Closing fragment |
| 10-22 03:01 | 60m | -18 / - | N8LE | - / -21 | 4 | ✓ Closing fragment |
| 10-22 02:54 | 60m | -14 / - | KG4SYK | - / -20 | 2 | ✓ Closing fragment |
| 10-22 02:40 | 60m | +4 / - | N0TDJ | - / -14 | 2 | ✓ Closing fragment |
| 10-22 02:37 | 60m | +4 / - | VA3MBT | - / -14 | 3 | ✓ Closing fragment |
| 10-22 02:29 | 60m | +6 / - | VA3BOO | - / -13 | 2 | ✓ Closing fragment |
| 10-22 02:28 | 60m | +6 / - | K8CHY | - / -10 | 2 | ✓ Closing fragment |
| 10-22 02:22 | 60m | +4 / -5 | G1LQT | -2 / -5 | 4 | ✓ Full exchange observed |
| 10-22 02:09 | 60m | +4 / - | N3FMC | - / -2 | 2 | ✓ Closing fragment |
| 10-22 02:02 | 60m | +12 / - | N1XX | - / +2 | 2 | ✓ Closing fragment |
| 10-22 02:01 | 60m | +12 / - | KE8AFJ | - / -8 | 2 | ✓ Closing fragment |
| 10-22 01:27 | 60m | +5 / - | 3B8FA | - / -23 | 3 | ✓ Closing fragment |
| 10-22 01:10 | 60m | +2 / - | W8PAT | - / -17 | 2 | ✓ Closing fragment |
| 10-22 00:58 | 60m | +8 / - | VA3YK | - / -19 | 3 | ✓ Closing fragment |
| 10-22 00:57 | 60m | +10 / +6 | ON8WR | -7 / -7 | 5 | ✓ Full exchange observed |
| 10-22 00:44 | 60m | +6 / - | N0TDJ | - / -18 | 3 | Partial capture |
| 10-22 00:43 | 60m | +10 / - | N9CIQ | - / -13 | 2 | ✓ Closing fragment |
| 10-22 00:37 | 60m | +8 / - | NM1R | - / -11 | 2 | ✓ Closing fragment |
| 10-22 00:35 | 60m | +7 / - | WV9L | - / -9 | 2 | ✓ Closing fragment |
| 10-22 00:07 | 60m | +12 / - | W9FR | - / -4 | 2 | ✓ Closing fragment |
| 10-21 23:53 | 60m | +10 / - | DF9AO | -19 / -18 | 3 | ✓ Closing observed |
| 10-21 23:41 | 60m | +6 / -12 | SN0EG | -17 / +9 | 6 | ✓ Full exchange observed |
| 10-21 23:24 | 60m | +9 / - | KA0BWH | - / -10 | 2 | ✓ Closing fragment |
| 10-21 23:20 | 60m | +5 / -3 | EA5JAH | -18 / -4 | 4 | ✓ Full exchange observed |
| 10-21 22:46 | 60m | +7 / - | YE1BON | - / -20 | 4 | ✓ Closing fragment |
| 10-21 22:44 | 60m | +6 / +3 | UD6AWH | -17 / -12 | 5 | ✓ Full exchange observed |
| 10-21 22:26 | 60m | +4 / - | ER1CW | - / -10 | 2 | ✓ Closing fragment |
| 10-21 22:19 | 60m | +8 / - | EA8DQE | -22 / -11 | 4 | ✓ Closing observed |
| 10-21 21:39 | 60m | +6 / - | GI8RPM | -9 / 0 | 3 | ✓ Closing observed |
| 10-21 21:22 | 60m | +3 / - | PA7NL | - / -9 | 2 | ✓ Closing fragment |
| 10-21 21:09 | 60m | - / -1 | F/PA2JWN | +3 / - | 4 | ✓ Closing fragment |
| 10-21 20:43 | 60m | +6 / - | SM7MDI | - / -7 | 4 | ✓ Closing fragment |
| 10-21 20:42 | 60m | +10 / - | DL4BBY | 0 / -12 | 3 | ✓ Closing observed |
| 10-21 20:29 | 60m | +6 / - | SP3VST | - / -6 | 2 | ✓ Closing fragment |
| 10-21 20:18 | 60m | -1 / - | OK2MFD | - / +1 | 2 | ✓ Closing fragment |
| 10-21 20:10 | 60m | +4 / 0 | IW0FGX | -4 / -1 | 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 072130 -4 2367 EA2BUW PI4DX -02 (x5) 072400 -8 2367 CQ PI4DX JO21 (x4) 073000 -11 2368 ON1JP PI4DX R-12 (x6)
UTC dB Audio Message 193715 +10 1009 M1DDD PI4DX -03 (x2) 045215 +9 2129 CQ PI4DX JO21 (x2) 045330 -17 2130 PI4DX OZ1BEC JO55 (x2) 045415 +9 2129 OZ1BEC PI4DX -19 045430 -15 2130 PI4DX OZ1BEC R+26 045445 +8 2129 OZ1BEC PI4DX -19 045500 -16 2129 PI4DX OZ1BEC R+26 045515 +7 2129 OZ1BEC PI4DX RR73 045530 -13 2129 PI4DX OZ1BEC 73 045945 +10 2129 CQ PI4DX JO21 (x3)
UTC dB Audio Message 042415 -10 2160 CQ PI4DX JO21 042445 -8 2160 KB9ZM PI4DX -05 (x2) 042545 -7 2160 HI3K PI4DX R-03 (x2) 043045 -12 2160 CQ PI4DX JO21 (x5) 043745 -10 2160 KD3CLB PI4DX -14 (x2) 044245 -11 2160 CQ PI4DX JO21 (x3)
UTC dB Audio Message 194030 -9 2181 PI4DX DA6DN R-01 194045 +11 2180 DA6DN PI4DX RR73 194115 +10 2180 IZ2QPP PI4DX +05 194130 -7 1451 PI4DX IZ2QPP R+07 194145 +11 2180 IZ2QPP PI4DX RR73 194200 -13 1451 PI4DX IZ2QPP 73 194215 +15 2180 DL6AUK PI4DX +04 (x2) 194315 +11 2179 CQ PI4DX JO21 (x2) 194400 -4 755 PI4DX DL6AUK R+18 194415 +11 2179 DL6AUK PI4DX RR73 194430 -3 755 PI4DX DL6AUK 73 194445 +16 2180 EA4D PI4DX -05 (x2)
UTC dB Audio Message 102945 -11 940 ES1AMI PI4DX -15 103245 -15 940 CQ PI4DX JO21 103515 -11 940 UN7ZTB PI4DX -07 110930 -11 940 PI4DX CT5JLR 73 112800 -16 1934 PI4DX EA4IDN IN70 (x2) 114645 -13 939 CQ PI4DX JO21 (x4) 105345 -19 1595 PI4DX CS7BPG IN51 110930 -11 2494 PI4DX CR7BUW 73 152845 -20 2203 PI4DX EA4HAI -13 (x2) 121200 -24 1589 PU2TER PI4DX 73
UTC dB Audio Message 132115 +27 2536 SP1ZMO PI4DX JO21 (x2) 132200 -7 598 PI4DX RR73; DH7IF <...> +00 132215 +21 2536 CQ PI4DX JO21 (x2) 152315 +6 954 <...> PI4DX JO21 (x10)
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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