WO3U — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN00

Receiver-side FT8 activity involving WO3U, decoded by SO8OO in southeastern Poland. 39 FT8 messages attributed to this token as transmitter, on 60m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-09 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 39 FT8 messages attributed to WO3U as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (92%), followed by 60 m (8%). Most decodes (100%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (62%); the estimated median was -11 dB.

Overview

39
Messages attributed
14
UTC dates decoded
17
Active 15-min windows
-11 dB
Estimated median S/N

Bands

60m · 3 20m · 36
First attributed message: 2026-06-09
Last attributed message: 2026-10-22 02:39 UTC

Observed FT8 message patterns

Attributed sample
39 messages
Active dates
14 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-20 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 9.

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 WO3U 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 WO3U

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
FN00 · 23 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,348 km (approx.)
Last such locator decoded
2026-10-22 02:39 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 UTCBandWO3U S/NCounterpartCounterpart S/NMsgsCapture
11-07 14:11 10m - / -4 EI2HF -13 / - 4 Partial capture
11-07 02:46 40m - / -23 VP2MCV -6 / - 2 Partial capture
11-07 02:23 40m - / -11 CT7BRV -4 / - 2 ✓ Closing fragment
11-07 01:55 80m - / -24 DH8WR +5 / - 7 Partial capture
11-07 01:29 60m - / -14 HB9LEU +4 / - 2 ✓ Closing fragment
11-07 01:08 60m - / -10 S56P -4 / - 6 ✓ Closing fragment
11-07 00:32 40m - / -18 EG1PR -9 / - 2 ✓ Closing fragment
11-07 00:15 40m - / -20 VE3CM -14 / - 2 Partial capture
11-06 02:12 60m - / -19 DF4WQ -10 / - 4 ✓ Closing fragment
11-06 02:09 60m - / -14 LZ1GC +6 / - 6 ✓ Closing fragment
11-06 02:02 60m - / -9 G0ORC -8 / - 2 ✓ Closing fragment
11-06 02:02 60m - / - OP9T -4 / - 3 Partial capture
11-05 01:02 60m - / -15 DH0BRO -14 / - 3 Partial capture
11-05 00:05 60m - / -15 F5HNQ 0 / - 3 ✓ Closing fragment
11-03 23:14 40m - / -12 EA1JZB -12 / - 2 ✓ Closing fragment
11-03 22:51 40m - / - PD7BDN -8 / - 4 Partial capture
11-03 00:06 60m - / -15 IK1BQD +15 / - 3 ✓ Closing fragment
11-03 00:03 60m - / -11 G0ABI +2 / - 3 ✓ Closing fragment
11-02 23:47 40m - / -26 SV5BYP -4 / - 4 ✓ Closing fragment
11-02 23:45 40m - / -9 EA1Y -12 / - 2 Partial capture
11-02 02:40 40m - / -17 6W/IK2HKT -12 / - 2 Partial capture
11-01 08:10 60m - / -20 G4ZFJ -2 / - 6 ✓ Closing fragment
11-01 08:09 60m - / -25 PI40EUDXF -9 / - 3 Partial capture
10-31 02:59 40m - / -10 EB5EJA -14 / - 2 ✓ Closing fragment
10-31 02:49 40m - / -10 F5UTN -10 / - 3 ✓ Closing fragment
10-31 01:16 40m - / -10 F1PBZ -13 / - 3 ✓ Closing fragment
10-31 00:32 40m - / -15 EB3BKW -11 / - 4 ✓ Closing fragment
10-31 00:28 40m - / -19 G7RCQ -3 / - 3 Partial capture
10-31 00:17 40m - / - F4NFM -15 / - 2 Partial capture
10-30 01:03 60m - / - DF4WQ -7 / - 3 Partial capture
10-30 01:03 60m - / -8 PA4PA -1 / - 4 ✓ Closing fragment
10-30 01:00 60m - / -11 OK7GU +1 / - 6 ✓ Closing fragment
10-30 00:56 60m - / - DK3JW +12 / - 4 Partial capture
10-30 00:14 40m - / - UA3GX -6 / - 2 Partial capture
10-28 23:31 40m - / -1 F8MRQ +2 / - 6 ✓ Closing fragment
10-28 01:07 60m - / -18 DL1OBF -3 / - 4 ✓ Closing fragment
10-26 23:29 60m - / - OP9T +5 / - 15 Partial capture
10-25 23:57 40m - / -9 F1PBZ -16 / - 2 Partial capture
10-22 02:30 60m - / -18 IZ2DDY +5 / - 3 Partial capture
10-22 02:29 60m - / -13 9K2GR -6 / - 2 ✓ Closing fragment
10-20 07:53 40m - / - PD1AC -24 / - 2 Partial capture
10-18 01:07 60m - / +1 PE1MHY 0 / - 4 Partial capture
10-17 00:56 60m - / -18 SP5EXA -3 / - 7 ✓ Closing fragment
10-15 02:23 40m - / -16 F5MOO +15 / - 4 ✓ Closing fragment
10-06 00:11 40m - / -9 EA1ESW -16 / - 2 ✓ Closing fragment
10-03 02:51 80m - / - K4YT -20 / - 4 Partial capture
10-03 00:40 40m - / - F4FPR -11 / - 5 Partial capture
10-03 00:39 40m - / -18 A99AA -1 / - 2 ✓ Closing fragment
10-01 01:26 60m - / -13 OZ1BUR -3 / - 3 ✓ Closing fragment
09-30 01:49 80m - / -17 DL1RWN +17 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

10m 
UTC    dB Audio  Message
141100 -13 1292  WO3U EI2HF -04 (x4)
40m 
UTC    dB Audio  Message
225145  -6 2523  WO3U PD7BDN JO22 (x3)
231430 -14 1735  WO3U EA1JZB -12 (x2)
003315 -13 1931  WO3U OS4K -10
001515 -13 2120  WO3U VE3CM -20 (x2)
003230 -12 2341  WO3U EG1PR -18 (x2)
022315  -5 2020  WO3U CT7BRV -11 (x2)
024600  -6  471  WO3U VP2MCV -23 (x2)
025900  -4  472  WO3U RR73; W3ZQI <...> -14
80m 
UTC    dB Audio  Message
014930 +20  354  WO3U DL1RWN -17 (x2)
021000  +0 1073  WO3U LY5A -22
025145 -17 2013  WO3U K4YT FM19 (x4)
004300 -24 1645  WO3U K8DV 73
015545  +5 1145  WO3U DH8WR -24 (x7)
60m 
UTC    dB Audio  Message
021230 -12 2607  WO3U DF4WQ R-19 (x4)
010730  -5 1979  WO3U PC2J JO22
010830  -9 2538  WO3U S56P JN76 (x6)
011200 -13 1978  WO3U PC2J JO22
012915  -2  434  WO3U HB9LEU -14 (x2)
014445 -19 1285  WO3U VA3DIF RR73
20m 
UTC    dB Audio  Message
221315  -2  929  WO3U HB9JNM JN47
221345 +18  491  WO3U LZ2INP KN34 (x3)
221600 -15 2683  PY5QW WO3U FN00
221745 -12 2684  WO3U DH2RL JN68
230215  +3 2670  WO3U EA7JCR -12 (x2)
230445 +10  280  WO3U EA5ITW -18
190115  +7  966  WO3U F4JZW JN08 (x6)

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.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee