WP4U — 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 WP4U, decoded by SO8OO in southeastern Poland. 879 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 35 UTC dates in the available aggregate history. Observed between 2026-06-17 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 879 FT8 messages attributed to WP4U as the transmitting token by decoded message structure across 35 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 20 m (32%) and 80 m (14%). Most decodes (85%) fell within the six-hour window 23:00-05:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6.2 dB.
Overview
Bands
Last attributed message: 2026-10-22 00:37 UTC
Observed FT8 message patterns
- Attributed sample
- 879 messages
- Active dates
- 35 UTC dates
- Estimated median S/N
- -6.2 dB
- Estimated 10th-90th percentile
- -18 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 175, moderate (-15 to -9 dB) 209, strong (≥ -8 dB) 495.
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 WP4U 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 WP4U
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
- FK68 · 414 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,360 km (approx.)
- Last such locator decoded
- 2026-10-22 00:37 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 | WP4U S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 00:44 | 160m | - / - | ON5RZ | -6 / - | 9 | Partial capture |
| 10-22 00:42 | 160m | - / -19 | OM2WQ | +13 / - | 7 | ✓ Closing fragment |
| 10-22 00:36 | 160m | - / - | OM2WQ | +9 / - | 2 | Partial capture |
| 10-22 00:27 | 160m | - / - | OM0RX | -4 / - | 4 | Partial capture |
| 10-22 00:27 | 160m | - / - | OM2WQ | +13 / - | 3 | Partial capture |
| 10-18 02:41 | 80m | - / - | PA3KUS | +3 / - | 5 | Partial capture |
| 10-18 02:40 | 80m | -20 / - | KF0WBC | - / -17 | 3 | ✓ Closing fragment |
| 10-18 02:35 | 80m | - / - | G6PWS | -4 / - | 9 | Partial capture |
| 10-18 02:34 | 80m | - / - | DJ4WM | +12 / - | 3 | Partial capture |
| 10-18 02:34 | 80m | - / - | DG5PW | 0 / - | 3 | Partial capture |
| 10-18 02:32 | 80m | -18 / - | F1PBZ | +5 / -16 | 3 | ✓ Closing observed |
| 10-18 02:31 | 80m | - / - | PA3KUS | +1 / - | 8 | Partial capture |
| 10-18 02:30 | 80m | -22 / -6 | OH7KM | +11 / -7 | 3 | ✓ Full exchange observed |
| 10-18 02:28 | 80m | -15 / -17 | GM6URC | -12 / - | 4 | ✓ Closing observed |
| 10-18 02:28 | 80m | - / -22 | HA1SU | +17 / - | 8 | Partial capture |
| 10-18 02:28 | 80m | - / -15 | F1PBZ | +1 / - | 4 | Partial capture |
| 10-18 02:27 | 80m | - / - | SP9NVY | +11 / - | 11 | Partial capture |
| 10-18 02:27 | 80m | - / - | G6PWS | +6 / - | 9 | Partial capture |
| 10-11 01:21 | 160m | - / - | UX5UO | +18 / - | 3 | Partial capture |
| 10-11 01:15 | 160m | - / -17 | CT2GQA | -21 / - | 3 | ✓ Closing fragment |
| 10-04 01:35 | 80m | - / - | PA3KUS | -7 / - | 3 | Partial capture |
| 10-04 01:34 | 80m | - / - | LZ2EV | +3 / - | 5 | Partial capture |
| 10-04 01:33 | 80m | -9 / - | SQ100LKK | - / -1 | 3 | Partial capture |
| 10-04 01:32 | 80m | - / - | G6PWS | +1 / - | 9 | Partial capture |
| 10-04 01:31 | 80m | - / -8 | DK1ML | +12 / - | 3 | Partial capture |
| 10-04 01:31 | 80m | -8 / -7 | RX3ASQ | +4 / -24 | 4 | ✓ Full exchange observed |
| 10-04 01:29 | 80m | -19 / - | Z62NS | - / -11 | 2 | Partial capture |
| 10-04 01:24 | 80m | - / -7 | ON1JP | -11 / - | 3 | Partial capture |
| 10-04 01:24 | 80m | - / - | G6PWS | +1 / - | 9 | Partial capture |
| 10-04 01:20 | 80m | -18 / -13 | Z62NS | +5 / -11 | 14 | Partial capture |
| 10-02 02:42 | 80m | - / -23 | PE1NPS | -10 / - | 3 | Partial capture |
| 10-02 02:42 | 80m | - / -4 | R3LAF | +2 / - | 2 | Partial capture |
| 10-02 02:42 | 80m | - / - | DL9KM | -8 / - | 7 | Partial capture |
| 10-02 02:39 | 80m | -4 / -10 | RM8W | -2 / -14 | 8 | ✓ Full exchange observed |
| 10-02 02:39 | 80m | -5 / -7 | RW3YS | -1 / -13 | 5 | ✓ Full exchange observed |
| 10-02 02:37 | 80m | -5 / -11 | RX6DA | -1 / -16 | 4 | ✓ Full exchange observed |
| 10-02 02:34 | 80m | -6 / -17 | R7HL | +3 / -18 | 6 | ✓ Full exchange observed |
| 10-02 02:34 | 80m | -7 / - | CO8CF | - / -9 | 4 | ✓ Closing fragment |
| 10-02 02:34 | 80m | - / -11 | R3LAF | +2 / - | 8 | Partial capture |
| 10-02 02:33 | 80m | - / - | PE1NPS | -6 / - | 3 | Partial capture |
| 10-02 02:32 | 80m | -5 / - | SX2LGT | - / -13 | 3 | ✓ Closing fragment |
| 10-02 01:13 | 80m | - / -9 | R2BQM | -13 / - | 3 | Partial capture |
| 10-02 01:07 | 80m | - / - | F6FHZ | -19 / - | 3 | Partial capture |
| 10-02 01:06 | 80m | - / -11 | G3WGC | -6 / - | 5 | ✓ Closing fragment |
| 10-02 01:06 | 80m | - / - | R3ICU | +5 / - | 2 | Partial capture |
| 10-02 01:03 | 80m | - / -14 | RA7O | -16 / - | 5 | ✓ Closing fragment |
| 10-02 01:01 | 80m | - / - | R3ICU | +2 / - | 2 | Partial capture |
| 10-02 01:01 | 80m | - / -14 | SV3AGT | -14 / - | 5 | ✓ Closing fragment |
| 10-02 01:00 | 80m | - / - | ON4MAP | -15 / - | 5 | Partial capture |
| 10-02 01:00 | 80m | - / -10 | R5DT | +18 / - | 5 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 004300 +14 1904 WP4U OM2WQ JN88 (x3) 004430 -10 2207 WP4U ON5RZ JO21 004430 +14 1904 WP4U OM2WQ R-19 004500 -4 2207 WP4U ON5RZ JO21 004500 +18 1904 WP4U OM2WQ R-19 004530 -17 2207 WP4U ON5RZ JO21 004530 +11 1904 WP4U OM2WQ 73 004600 +0 2207 WP4U ON5RZ JO21 (x6)
UTC dB Audio Message 023700 +13 2430 WP4U DJ4WM JO42 023715 -21 2430 PY2WC WP4U R-23 023730 +4 1934 WP4U G6PWS IO91 023730 -2 2430 WP4U F1IQH JN27 023800 -3 1934 WP4U G6PWS IO91 (x3) 024015 -17 2430 KF0WBC WP4U -17 (x2) 024130 +3 506 WP4U PA3KUS JO21 024145 -22 2430 KF0WBC WP4U RR73 024200 +5 506 WP4U PA3KUS JO21 (x4)
UTC dB Audio Message 003545 +8 2760 UA9YFL WP4U FK68 003600 -9 2102 WP4U UA9YFL -03 003615 +9 2760 UA9YFL WP4U R-11 003630 -15 2101 WP4U UA9YFL RR73 003645 +10 2760 UA9YFL WP4U 73 003730 -7 627 WP4U R8FH -19 003745 +6 2760 R9OAE WP4U FK68 (x6) 004245 +7 2584 CQ AS WP4U FK68 (x2) 004345 +7 2584 QSY WP4U FK68
UTC dB Audio Message 190115 -19 2033 WP4U PD1ADA JO21 190145 -15 1924 WP4U TM0BSM R+00 (x2) 190215 -17 2033 WP4U PD1ADA JO21 190245 -16 1925 WP4U TM0BSM R+00 190245 -11 2033 WP4U PD1ADA JO21 190315 -15 1925 WP4U TM0BSM R+00 (x2) 164615 -6 462 WP4U IK4LZH JN54 (x4) 035030 -3 1482 WP4U RX6FN LN14 (x3)
UTC dB Audio Message 034415 -11 1879 SM7WNM WP4U FK68 034430 -18 1254 WP4U SM7WNM -07 034445 -17 1879 SM7WNM WP4U R-10 (x2) 034530 -12 1254 WP4U SM7WNM RR73 034600 -13 2360 WP4U SP8AWL KO11 034600 -12 1254 WP4U SM7WNM RR73 034630 -11 2360 WP4U SP8AWL KO11 (x4)
UTC dB Audio Message 144545 -16 1183 WP4U PA1HGM -07 (x2) 144615 -17 1466 WP4U A71AE LL55 (x3) 144815 -15 1183 WP4U PA1HGM -08
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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