PY1SX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving PY1SX, decoded by SO8OO in southeastern Poland. 483 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-27.
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 483 FT8 messages attributed to PY1SX as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (65%), followed by 10 m (35%). Several six-hour UTC windows tied for the largest share (77%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-08-27 20:26 UTC
Observed FT8 message patterns
- Attributed sample
- 483 messages
- Active dates
- 40 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -19 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 136, moderate (-15 to -9 dB) 261, strong (≥ -8 dB) 86.
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 PY1SX 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 PY1SX
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
- GG87 · 335 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 10,260 km (approx.)
- Last such locator decoded
- 2026-08-27 20:26 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 | PY1SX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-04 06:31 | 40m | - / - | EA6Y | -8 / - | 2 | Partial capture |
| 09-20 12:16 | 10m | - / - | EA7Z | +2 / - | 2 | Partial capture |
| 08-31 09:36 | 20m | - / - | F4BYA | +8 / - | 5 | Partial capture |
| 08-31 09:34 | 20m | - / - | M8FQT | -10 / - | 10 | Partial capture |
| 08-30 11:45 | 10m | - / - | EA3AKY | -2 / - | 3 | Partial capture |
| 08-30 11:31 | 10m | - / - | EA3AKY | -4 / - | 2 | Partial capture |
| 08-30 09:48 | 20m | - / - | EA1FCS | -14 / - | 2 | Partial capture |
| 08-30 09:28 | 20m | - / -22 | F5MJN | +1 / - | 3 | ✓ Closing fragment |
| 08-30 09:26 | 20m | - / -15 | OK2CNI | 0 / - | 4 | ✓ Closing fragment |
| 08-27 20:39 | 20m | - / - | F4VTR | +12 / - | 4 | Partial capture |
| 08-27 20:39 | 20m | - / - | F1IQH | +1 / - | 4 | Partial capture |
| 08-27 20:35 | 20m | - / -15 | IN3ZWF | -6 / - | 7 | ✓ Closing fragment |
| 08-27 20:27 | 20m | - / - | F4VTR | +7 / - | 2 | Partial capture |
| 08-27 20:22 | 20m | - / - | DH1JG | 0 / - | 3 | Partial capture |
| 08-27 20:21 | 20m | -14 / - | OH7KD | - / -6 | 3 | ✓ Closing fragment |
| 08-27 09:13 | 20m | - / -12 | OS4K | -10 / - | 3 | Partial capture |
| 08-26 20:39 | 20m | - / - | DL4YCM | -8 / - | 4 | Partial capture |
| 08-26 20:34 | 20m | -12 / - | MW7IBE | - / -11 | 3 | Partial capture |
| 08-26 20:34 | 20m | - / -19 | R7IQ | -6 / - | 4 | Partial capture |
| 08-26 20:34 | 20m | - / - | DK0GN | +4 / - | 2 | Partial capture |
| 08-26 20:34 | 20m | - / - | EA5HM | -1 / - | 5 | Partial capture |
| 08-26 20:27 | 20m | - / - | DL7BG | 0 / - | 2 | Partial capture |
| 08-26 20:27 | 20m | - / - | RD6OZ | -2 / - | 6 | Partial capture |
| 08-26 19:36 | 10m | - / - | DG0NE | -8 / - | 8 | Partial capture |
| 08-26 19:30 | 10m | - / - | DO6UM | -14 / - | 2 | Partial capture |
| 08-26 19:29 | 20m | - / - | DH1JG | 0 / - | 9 | Partial capture |
| 08-26 19:27 | 20m | - / - | OK1UG | +10 / - | 5 | Partial capture |
| 08-26 19:26 | 20m | - / - | DL3JHK | -4 / - | 2 | Partial capture |
| 08-26 10:00 | 20m | - / - | EA4HQC | -16 / - | 2 | Partial capture |
| 08-25 21:19 | 20m | -9 / - | DH2RL | - / -16 | 3 | ✓ Closing fragment |
| 08-25 21:17 | 20m | - / - | EA1DZ | -16 / - | 2 | Partial capture |
| 08-25 21:12 | 20m | - / - | IK4LZH | -12 / - | 2 | Partial capture |
| 08-25 21:11 | 20m | -6 / - | SP2OZ | - / -17 | 2 | Partial capture |
| 08-25 09:09 | 20m | - / - | F4AWT | +4 / - | 3 | Partial capture |
| 08-25 09:06 | 20m | - / -24 | ON1JP | -7 / - | 5 | Partial capture |
| 08-25 03:50 | 20m | - / - | F1IQH | -22 / - | 2 | Partial capture |
| 08-24 09:13 | 20m | - / -3 | M7KBF | 0 / - | 4 | ✓ Closing fragment |
| 08-24 03:13 | 20m | - / -22 | R8CIS | -20 / - | 2 | Partial capture |
| 08-24 03:09 | 20m | - / -24 | R8CIS | -7 / - | 2 | Partial capture |
| 08-23 05:32 | 40m | - / - | F1IQH | -16 / - | 4 | Partial capture |
| 08-23 05:21 | 40m | - / - | EI4JFB | -6 / - | 3 | Partial capture |
| 08-16 19:35 | 20m | - / - | YT7TZ | -7 / - | 3 | Partial capture |
| 08-16 19:34 | 20m | - / -13 | F4CQS | -1 / - | 2 | Partial capture |
| 08-16 19:34 | 20m | - / - | DK3ME | -1 / - | 5 | Partial capture |
| 08-16 19:31 | 20m | - / - | DH1JG | -5 / - | 12 | Partial capture |
| 08-16 19:23 | 20m | - / - | S57ESG | -2 / - | 4 | Partial capture |
| 08-16 19:22 | 20m | - / - | DL8UVG | -4 / - | 4 | Partial capture |
| 08-16 19:19 | 20m | - / - | S57ESG | -13 / - | 2 | Partial capture |
| 08-16 19:14 | 20m | - / - | PD3LKN | -7 / - | 7 | Partial capture |
| 08-16 18:48 | 20m | - / - | DL7HS | -3 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 052530 -9 2553 PY1SX IQ4JO JN63 052145 -8 493 PY1SX EI4JFB IO63 (x3) 053215 -17 1101 PY1SX F1IQH JN27 (x4) 025400 +1 2755 PY1SX RA4FHO -14 040000 -6 820 PY1SX F1IQH JN27 083530 -13 836 PY1SX PD5FL JO22 093445 -15 2234 PY1SX PD1DTH JO32 203715 -9 2215 PY1SX IU2UBS JN45 063100 -7 2112 PY1SX EA6Y JM19 (x2)
UTC dB Audio Message 193630 -12 2377 PY1SX DG0NE JO63 (x8) 113145 -5 2704 PY1SX EA3AKY JN01 (x5) 121630 +4 898 PY1SX EA7Z IM67 (x2)
UTC dB Audio Message 093400 -19 1265 PY1SX M8FQT IO93 (x6) 093630 +10 2911 PY1SX F4BYA JN19 093700 -7 1265 PY1SX M8FQT IO93 093700 +13 2910 PY1SX F4BYA JN19 093730 -8 1265 PY1SX M8FQT IO93 093730 +3 2911 PY1SX F4BYA JN19 093800 -7 1265 PY1SX M8FQT IO93 (x2) 093900 +4 2911 PY1SX F4BYA JN19 (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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