XW4KV — 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 XW4KV, decoded by SO8OO in southeastern Poland. 176 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-07.
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 176 FT8 messages attributed to XW4KV as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (91%), followed by 10 m (9%). Most decodes (90%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-09-07 10:29 UTC
Observed FT8 message patterns
- Attributed sample
- 176 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -16 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 88, strong (≥ -8 dB) 65.
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 XW4KV in decoded directed-looking exchanges:
Most frequent locator attributed to XW4KV
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
- OK18 · 60 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,824 km (approx.)
- Last such locator decoded
- 2026-08-08 19:13 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 | XW4KV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-06 07:02 | 80m | - / -9 | DL1KDA | -1 / - | 8 | Partial capture |
| 11-04 11:13 | 10m | - / - | EA5AXO | -18 / - | 3 | Partial capture |
| 11-04 11:09 | 10m | - / - | CR7BUW | -22 / - | 2 | Partial capture |
| 11-04 11:08 | 10m | - / - | EA5AXO | -19 / - | 3 | Partial capture |
| 11-04 10:56 | 10m | - / - | CR7BUW | -22 / - | 2 | Partial capture |
| 11-04 10:48 | 10m | - / -14 | EA1NY | +1 / - | 7 | ✓ Closing fragment |
| 11-04 10:42 | 10m | - / -15 | S55X | -9 / - | 13 | ✓ Closing fragment |
| 11-04 10:24 | 10m | - / -11 | EA7GHD | -12 / - | 5 | ✓ Closing fragment |
| 11-04 10:23 | 10m | - / - | EA7GE | -14 / - | 2 | Partial capture |
| 11-04 10:22 | 10m | - / - | EB7CFU | -9 / - | 3 | Partial capture |
| 11-04 10:13 | 10m | - / - | EA7GE | -19 / - | 8 | Partial capture |
| 11-04 10:13 | 10m | - / - | RN3YN | -13 / - | 2 | Partial capture |
| 11-04 10:00 | 10m | - / - | EA7GHD | -13 / - | 5 | Partial capture |
| 11-04 09:51 | 10m | - / - | EA7GHD | -18 / - | 7 | Partial capture |
| 11-04 09:46 | 10m | - / - | CR7BUW | -20 / - | 2 | Partial capture |
| 10-27 10:25 | 10m | - / - | EA1AOM | +2 / - | 2 | Partial capture |
| 10-27 09:47 | 10m | - / -20 | CT1END | -4 / - | 7 | Partial capture |
| 10-27 08:52 | 10m | - / - | CT3IQ | -22 / - | 2 | Partial capture |
| 10-27 07:06 | 10m | - / - | RA9CAD | -17 / - | 4 | Partial capture |
| 10-16 12:41 | 10m | - / -18 | EA7GUK | -8 / - | 2 | ✓ Closing fragment |
| 10-16 11:25 | 10m | - / - | EB5GC | -18 / - | 2 | ✓ Closing fragment |
| 10-16 10:37 | 10m | - / -9 | EA1ARJ | +1 / - | 7 | ✓ Closing fragment |
| 10-16 10:28 | 10m | - / -17 | EA3AWT | -10 / - | 4 | ✓ Closing fragment |
| 10-15 13:48 | 10m | - / - | EA7JKP | -17 / - | 2 | Partial capture |
| 10-15 13:26 | 10m | - / -9 | EA7LLJ | -24 / - | 2 | ✓ Closing fragment |
| 10-15 12:57 | 10m | - / -13 | EA7GRB | -20 / - | 2 | Partial capture |
| 10-15 12:50 | 10m | - / - | EA7KVL | -16 / - | 3 | Partial capture |
| 10-12 14:35 | 10m | - / -11 | TN8GD | -9 / - | 2 | ✓ Closing fragment |
| 09-29 13:18 | 40m | - / - | SP9OJ | -4 / - | 2 | Partial capture |
| 09-07 10:21 | 10m | -5 / - | DL9KM | - / -8 | 12 | Partial capture |
| 09-07 10:20 | 10m | -8 / - | OK2MFD | - / -5 | 2 | ✓ Closing fragment |
| 08-31 20:33 | 20m | - / -21 | R7ZY | -10 / - | 4 | Partial capture |
| 08-31 20:01 | 20m | -8 / -25 | IK1JGS | +2 / -17 | 4 | ✓ Full exchange observed |
| 08-31 19:23 | 20m | - / -16 | DL6EL | +18 / - | 3 | ✓ Closing fragment |
| 08-31 19:15 | 20m | - / -20 | ON5GQ | 0 / - | 2 | Partial capture |
| 08-31 19:13 | 20m | - / -16 | DK6IM | +18 / - | 2 | ✓ Closing fragment |
| 08-31 18:58 | 20m | - / -17 | EA5HEU | +8 / - | 3 | ✓ Closing fragment |
| 08-31 18:51 | 20m | - / - | F4GPB | +8 / - | 2 | Partial capture |
| 08-31 18:47 | 20m | - / -14 | EA2AA | +10 / - | 3 | ✓ Closing fragment |
| 08-31 18:42 | 20m | - / -21 | R4AEH | +3 / - | 4 | ✓ Closing fragment |
| 08-31 18:40 | 20m | - / -21 | F4HEN | -4 / - | 2 | ✓ Closing fragment |
| 08-31 18:38 | 20m | - / -23 | IU2UBS | -8 / - | 3 | ✓ Closing fragment |
| 08-31 18:36 | 20m | - / - | F4NGK | -3 / - | 2 | Partial capture |
| 08-31 18:32 | 20m | - / -14 | GM4FDM | +14 / - | 2 | ✓ Closing fragment |
| 08-31 18:16 | 20m | - / - | PD1GJB | -14 / - | 4 | Partial capture |
| 08-31 18:15 | 20m | - / -21 | DL5KSS | -7 / - | 3 | ✓ Closing fragment |
| 08-31 18:09 | 20m | - / - | RU3G | 0 / - | 5 | Partial capture |
| 08-31 18:06 | 20m | - / -22 | R3TY | +2 / - | 3 | ✓ Closing fragment |
| 08-31 18:04 | 20m | - / - | LA2GCA | -1 / - | 5 | Partial capture |
| 08-31 17:58 | 20m | - / -5 | DK3RV | +3 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 070200 -4 622 XW4KV DL1KDA -09 (x8)
UTC dB Audio Message 105030 +1 1090 XW4KV EA1NY IN72 (x3) 105630 -20 1595 XW4KV CR7BUW IM58 (x2) 110800 -17 2058 XW4KV EA5AXO IM98 (x3) 110900 -21 1595 XW4KV CR7BUW IM58 (x2) 111300 -17 2058 XW4KV EA5AXO IM98 (x3) 111630 -22 1479 XW4KV R3BHK -08 112330 -24 1595 XW4KV CR7BUW IM58
UTC dB Audio Message 131845 -2 1857 XW4KV SP9OJ JN99 (x2)
UTC dB Audio Message 193500 -5 2426 XW4KV EA1KBT -18 195700 -13 1888 XW4KV M9KTM R-24 195915 -11 481 OS8E XW4KV R-21 195945 -14 481 OH1ZE XW4KV RR73 200015 -12 481 M9KTM XW4KV RR73 200100 +3 1440 XW4KV IK1JGS -25 200115 -6 481 IK1JGS XW4KV R-17 200130 +0 1440 XW4KV IK1JGS RR73 200145 -10 481 IK1JGS XW4KV 73 200215 -9 481 SP0LPR XW4KV -15 203200 -15 477 XW4KV IU2UBU R-14 203300 -11 2439 XW4KV R7ZY KN98 (x4)
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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