US3LX — 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: Ukraine Most frequent locator attributed to this token: KN89

Receiver-side FT8 activity involving US3LX, decoded by SO8OO in southeastern Poland. 2,691 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 91 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-21.

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 2,691 FT8 messages attributed to US3LX as the transmitting token by decoded message structure across 91 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (33%), followed by 10 m (18%) and 80 m (18%). Most decodes (74%) 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 -11 dB.

Overview

2,691
Messages attributed
91
UTC dates decoded
404
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-10-21 19:23 UTC

Observed FT8 message patterns

Attributed sample
2,691 messages
Active dates
91 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-19 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 681, moderate (-15 to -9 dB) 1,022, strong (≥ -8 dB) 988.

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.

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 US3LX

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
KN89 · 1,821 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,093 km (approx.)
Last such locator decoded
2026-10-21 19:19 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 UTCBandUS3LX S/NCounterpartCounterpart S/NMsgsCapture
10-21 19:22 60m -18 / - TA2EE - / -21 3 Partial capture
10-21 19:19 60m -18 / -10 PI4DX +7 / -9 4 ✓ Full exchange observed
10-21 19:10 60m -12 / - UN7LEW - / -18 5 ✓ Closing fragment
10-21 18:53 40m - / -19 EH6DSY -6 / - 2 ✓ Closing fragment
10-21 18:07 40m - / +8 YT1ZQ -10 / - 4 ✓ Closing fragment
10-21 17:49 40m -19 / - SP9BBA - / - 2 Partial capture
10-21 17:36 40m -16 / - HB0PA - / - 8 Partial capture
10-21 14:41 40m -17 / - YB5WIR - / - 3 Partial capture
10-21 14:31 40m -17 / - YB5WIR - / - 2 Partial capture
10-17 21:03 60m -15 / - SP1ZMO - / - 3 Partial capture
10-17 21:00 60m -14 / - EA5IGV -14 / -19 5 ✓ Closing observed
10-17 20:54 60m -16 / - F5OYA/P - / -24 4 Partial capture
10-17 20:51 60m -13 / - PE3T +1 / -16 5 ✓ Closing observed
10-17 20:48 60m - / -9 OZ5AGJ -16 / - 6 ✓ Closing fragment
10-17 20:47 60m -12 / - F5OYA/P - / - 5 Partial capture
10-17 20:43 60m -9 / -12 UN3QA -14 / -11 4 ✓ Full exchange observed
10-17 20:41 60m -10 / -6 HB9PLH +6 / -13 5 ✓ Full exchange observed
10-17 20:38 60m -9 / -12 ON1EHF -3 / -25 6 ✓ Full exchange observed
10-17 20:35 60m -14 / - G1XOW - / - 4 Partial capture
10-16 18:16 40m -13 / -15 SV1BTK -2 / -10 6 ✓ Full exchange observed
10-16 18:13 40m -10 / - RD9M/3 - / -21 2 Partial capture
10-16 18:11 40m - / -18 OR82CLM -7 / - 3 Partial capture
10-16 18:04 40m -13 / - OR82CLM - / - 3 Partial capture
10-14 18:09 60m -20 / - SP9D - / - 2 Partial capture
10-14 18:06 60m -20 / -3 SV8LMQ -4 / - 5 ✓ Closing observed
10-14 18:02 60m -18 / -13 4X1GA -12 / -21 5 ✓ Full exchange observed
10-13 20:01 60m - / - EA7KBX -18 / - 2 Partial capture
10-13 19:55 60m -11 / -9 OZ7CL -18 / - 10 ✓ Closing observed
10-13 19:51 60m -12 / -9 DL0CG -7 / -21 4 ✓ Full exchange observed
10-13 19:50 60m -12 / -19 F1GTU -9 / -16 11 ✓ Full exchange observed
10-13 19:49 60m -14 / -18 DL1SRS -3 / -20 5 ✓ Full exchange observed
10-13 19:44 60m -14 / - LA9JKA - / - 8 Partial capture
10-13 19:42 60m -10 / - IZ3XBL - / -16 4 ✓ Closing fragment
10-13 19:40 60m -10 / - LA9JKA - / - 4 Partial capture
10-13 19:36 60m -16 / -14 PA4PA +12 / -12 6 ✓ Full exchange observed
10-13 19:35 60m -10 / - DD6ZV - / - 3 Partial capture
10-13 19:29 60m - / - EA5TT -14 / - 3 Partial capture
10-13 19:27 60m -15 / - IQ3TR -3 / -14 10 ✓ Closing observed
10-13 19:26 60m -16 / - I8OHQ -3 / -23 2 ✓ Closing observed
10-13 19:26 60m - / - EA5TT -16 / - 2 Partial capture
10-13 19:16 40m -12 / - PA5VEN - / - 2 Partial capture
10-13 19:14 40m -10 / - 4L6EZ - / -10 2 ✓ Closing fragment
10-13 19:12 40m -8 / - SP4BB - / - 2 Partial capture
10-13 19:10 40m -8 / - BA5AW - / -17 3 ✓ Closing fragment
10-13 18:55 40m -9 / -11 II5GG -2 / - 13 Partial capture
10-12 18:47 60m -13 / -25 SQ9LGF -7 / -15 8 ✓ Full exchange observed
10-12 18:45 60m -14 / -23 LA9GX -6 / -12 6 ✓ Full exchange observed
10-12 18:43 60m -17 / -18 PE3T +5 / - 2 Partial capture
10-12 18:40 60m -20 / - DJ3KS - / - 2 Partial capture
10-12 18:33 60m -14 / - UN7BCF - / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

60m
UTC    dB Audio  Message
210330 -14 1371  SP1ZMO US3LX KN89 (x2)
191000 -13 1002  UN7LEW US3LX KN89 (x5)
191630 -17 1535  US3LX Z30A RR73
191930 -21 1644  PI4DX US3LX KN89
191945  +7  907  US3LX PI4DX -10
192000 -20 1644  PI4DX US3LX R-09 (x2)
192200 -14 1644  TA2EE US3LX -21 (x3)
40m
UTC    dB Audio  Message
173730 -14 1631  HB0PA US3LX KN89 (x6)
174900 -15 1929  SP9BBA US3LX KN89 (x2)
175815 -20 1472  PD5BT US3LX R-24
180700  -9 1660  US3LX YT1ZQ +08 (x4)
185315  -9  655  US3LX EH6DSY -19 (x2)
80m
UTC    dB Audio  Message
180745 -13 1633  US3LX II5GG RR73
180800  -7 1885  II5GG US3LX 73
181000  +7  692  US3LX DJ3HW -08
181015 -11 1885  DJ3HW US3LX R-18
181030 +12  692  US3LX DJ3HW RR73
181045 -11 1885  DJ3HW US3LX 73
181130  -7 1885  IU8SDA US3LX KN89
181145  +4 1683  US3LX IU8SDA -11
181200  -4 1885  IU8SDA US3LX R-18
181215  +0 1683  US3LX IU8SDA RR73
181230 -12 1885  IU8SDA US3LX 73
181300 -13 1885  UR3QCV US3LX KN89 (x4)
10m
UTC    dB Audio  Message
113600 -14 2138  US3LX 9A7Y RR73
141030 -11 2544  US3LX CE2SV -17
20m
UTC    dB Audio  Message
095415 -13 1530  <...> US3LX KN89 (x3)
100630  +3 1026  US3LX GM3AND -07
100930  -7 1505  G1UZL US3LX KN89 (x4)
101330  -3 1506  <...> US3LX R-17
101945  -8 1459  ER1SKI/P US3LX KN89 (x2)
102945 -13 1837  GB2WVR US3LX KN89
103000  -6 1241  US3LX GB2WVR -07 (x2)
103045  -9 1836  GB2WVR US3LX 73

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

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