4X1YA — 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 4X1YA, decoded by SO8OO in southeastern Poland. 1,391 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-20.
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 1,391 FT8 messages attributed to 4X1YA as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (36%), followed by 80 m (33%) and 60 m (16%). Most decodes (68%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Bands
Last attributed message: 2026-10-20 04:46 UTC
Observed FT8 message patterns
- Attributed sample
- 1,391 messages
- Active dates
- 32 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -16.4 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 162, moderate (-15 to -9 dB) 506, strong (≥ -8 dB) 723.
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 4X1YA 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 4X1YA
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
- KM72 · 737 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,224 km (approx.)
- Last such locator decoded
- 2026-10-20 04:45 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 | 4X1YA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-20 05:15 | 40m | - / -14 | P4/WE9V | +6 / - | 2 | Partial capture |
| 10-17 04:08 | 80m | - / +10 | 4Z5AV | -18 / - | 3 | ✓ Closing fragment |
| 10-17 01:54 | 160m | - / - | OZ9GA | -7 / - | 3 | Partial capture |
| 10-17 01:53 | 160m | - / -17 | IW4AOT | -1 / - | 3 | Partial capture |
| 10-17 01:53 | 160m | - / - | RX6DA | -17 / - | 18 | Partial capture |
| 10-16 22:40 | 80m | - / -3 | SP9EVL | -6 / - | 2 | Partial capture |
| 10-16 22:38 | 80m | - / -10 | CT4KQ | -19 / - | 3 | Partial capture |
| 10-16 22:34 | 80m | - / - | F4FTV | +2 / - | 2 | ✓ Closing fragment |
| 10-16 22:32 | 80m | - / - | DL7ZN | +5 / - | 3 | Partial capture |
| 10-16 22:32 | 80m | - / - | I1YDT | -10 / - | 2 | Partial capture |
| 10-16 22:29 | 80m | - / - | F4VTR | -4 / - | 2 | Partial capture |
| 10-16 22:27 | 80m | - / - | DO8PAT | -3 / - | 5 | Partial capture |
| 10-16 22:26 | 80m | - / -19 | MM0HVU | -18 / - | 2 | Partial capture |
| 10-16 22:25 | 80m | - / - | SP9EVL | +2 / - | 2 | Partial capture |
| 10-16 22:20 | 80m | - / -10 | DO3DY | -5 / - | 2 | Partial capture |
| 10-16 22:20 | 80m | - / - | SP9EVL | +13 / - | 3 | Partial capture |
| 10-16 22:18 | 80m | - / - | OH4JFN | -6 / - | 2 | Partial capture |
| 10-16 22:17 | 80m | - / -7 | IK2SGB | 0 / - | 5 | ✓ Closing fragment |
| 10-16 22:14 | 80m | - / -6 | F5MXH | -8 / - | 3 | ✓ Closing fragment |
| 10-16 22:12 | 80m | - / -22 | M9DNC | -10 / - | 10 | Partial capture |
| 10-16 22:11 | 80m | - / -11 | SP3HUU | +16 / - | 3 | ✓ Closing fragment |
| 10-16 22:10 | 80m | - / -7 | PI4S/J | -1 / - | 5 | ✓ Closing fragment |
| 10-16 22:09 | 80m | - / +6 | F4NGR | -7 / - | 3 | ✓ Closing fragment |
| 10-16 22:09 | 80m | - / - | PA25ASP/J | +4 / - | 3 | Partial capture |
| 10-16 22:03 | 160m | - / -15 | IW4AOT | -6 / - | 3 | Partial capture |
| 10-16 22:01 | 160m | - / - | DB8WK | -6 / - | 8 | Partial capture |
| 10-16 22:00 | 160m | - / - | OZ9GA | -13 / - | 3 | Partial capture |
| 10-16 21:59 | 160m | - / -14 | DK7ZT | 0 / - | 3 | Partial capture |
| 10-16 21:59 | 160m | - / -16 | UA9CMN | -20 / - | 3 | ✓ Closing fragment |
| 10-16 20:50 | 160m | - / - | OZ9GA | -13 / - | 4 | Partial capture |
| 10-16 02:54 | 40m | -7 / - | EP2AES | - / -15 | 2 | Partial capture |
| 10-12 03:01 | 40m | -12 / - | RC8SC | - / -14 | 4 | Partial capture |
| 10-12 03:00 | 40m | -12 / - | DK1CE | - / -12 | 2 | ✓ Closing fragment |
| 10-12 02:51 | 40m | -14 / - | IU8RFW | - / -18 | 4 | Partial capture |
| 10-12 02:48 | 40m | -18 / - | UT5MB | - / -10 | 2 | ✓ Closing fragment |
| 10-10 20:30 | 160m | - / 0 | UA4PPQ | -8 / - | 2 | Partial capture |
| 10-10 20:29 | 160m | - / - | OK1FAN | -6 / - | 3 | Partial capture |
| 10-10 20:26 | 160m | - / -14 | DK7ZT | -1 / - | 4 | Partial capture |
| 10-10 20:26 | 160m | -18 / -15 | IZ3VCN | +13 / -19 | 8 | ✓ Full exchange observed |
| 10-10 20:25 | 160m | -14 / -10 | OM2WW | +6 / -21 | 4 | ✓ Full exchange observed |
| 10-10 20:23 | 160m | - / - | R2GCV | -12 / - | 4 | Partial capture |
| 10-10 20:22 | 160m | -16 / -13 | SP9DGO | +4 / -19 | 9 | ✓ Full exchange observed |
| 10-10 20:21 | 160m | -16 / -12 | E73S | +11 / -11 | 7 | ✓ Full exchange observed |
| 10-10 20:21 | 160m | - / - | OM2WW | +6 / - | 2 | Partial capture |
| 10-10 20:21 | 160m | - / - | DO3VE | +7 / - | 5 | Partial capture |
| 10-10 20:21 | 160m | - / -8 | LY8O | -2 / - | 4 | ✓ Closing fragment |
| 10-10 20:20 | 160m | -16 / -18 | OM2WQ | +11 / -14 | 3 | ✓ Full exchange observed |
| 10-10 03:47 | 80m | - / -17 | OR5T | +7 / - | 4 | ✓ Closing fragment |
| 10-10 03:34 | 80m | - / - | YO8XFU | -3 / - | 2 | ✓ Closing fragment |
| 10-10 03:30 | 80m | - / - | LY2EW | 0 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 030030 -11 1539 DK1CE 4X1YA -12 (x2) 030130 -10 1539 RC8SC 4X1YA -14 (x4) 031700 -22 1539 CQ 4X1YA KM72 (x2) 025445 -7 2533 EP2AES 4X1YA -15 (x2) 044515 -14 1540 W9HT/VP9 4X1YA KM72 044600 -4 415 4X1YA F5OYA/P -13 044615 -15 1539 HF37KJP 4X1YA R-16 051500 +5 497 4X1YA P4/WE9V -14 (x2)
UTC dB Audio Message 223945 -22 1700 4X1YA CT4KQ R-10 224015 -6 827 4X1YA SP9EVL JO90 (x2) 014515 -6 1303 CQ 4X1YA KM72 (x3) 014700 -3 1305 4X1YA DH5IS JN49 014730 -9 1322 4X1YA ON4MAP JO20 014815 -7 1303 CQ 4X1YA KM72 014930 -21 1797 4X1YA RA4HAP R-11 040530 +15 2263 4X1YA IK2TDM JN45 040830 -19 1553 4X1YA 4Z5AV KM71 (x3) 041130 -4 915 4X1YA SX37VER -05
UTC dB Audio Message 015500 -16 1584 4X1YA RX6DA KN85 015500 -5 1108 4X1YA OZ9GA JO46 015530 -14 1584 4X1YA RX6DA KN85 (x13)
UTC dB Audio Message 213800 -11 1733 CQ 4X1YA KM72 (x2) 213845 -8 325 4X1YA EH1PDA -07 213900 -10 1733 CQ 4X1YA KM72 213915 -5 542 4X1YA M0PEL JO01 213915 -10 326 4X1YA EH1PDA -09 213930 -4 1733 CQ 4X1YA KM72 213945 -7 543 4X1YA M0PEL JO01 214000 -13 1733 M0PEL 4X1YA -19 214015 -4 543 4X1YA M0PEL R-11 214030 -6 1733 M0PEL 4X1YA RR73 214045 -3 543 4X1YA M0PEL 73 214100 -5 1733 M0PEL 4X1YA 73 214130 -3 1733 CQ 4X1YA KM72 (x2)
UTC dB Audio Message 174615 +13 776 RI1FJL 4X1YA KM72 (x14) 183730 +5 1175 JG3LGD 4X1YA KM72
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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