ON3LBU — 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: Belgium Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving ON3LBU, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-29 and 2026-11-04.

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 19 FT8 messages attributed to ON3LBU as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.

Overview

19
Messages attributed
3
UTC dates decoded
7
Active 15-min windows
-21 dB
Estimated median S/N

Bands

First attributed message: 2026-10-29
Last attributed message: 2026-11-04 17:23 UTC

Observed FT8 message patterns

Attributed sample
19 messages
Active dates
3 UTC dates
Estimated median S/N
-21 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

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 ON3LBU

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
JO21 · 15 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-11-04 17:23 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 UTCBandON3LBU S/NCounterpartCounterpart S/NMsgsCapture
11-04 17:23 40m - / - DM2CNE -7 / - 3 Partial capture
11-04 17:20 40m -17 / -6 9A1CCB -6 / - 5 Partial capture
11-04 17:18 40m - / +9 DL1DEU -5 / - 3 Partial capture
11-04 17:10 40m - / - 9A1CCB -5 / - 2 Partial capture
11-04 17:07 40m -19 / -13 IZ1PQL -6 / +1 5 Partial capture
11-04 17:07 40m - / - SV1DKR -7 / - 3 ✓ Closing fragment
11-04 17:06 40m - / - DL6UM -1 / - 2 Partial capture
11-04 17:06 40m - / - IK2TCV -7 / - 3 Partial capture
11-04 13:49 40m -24 / -7 OE5PEN -8 / 0 5 Partial capture
11-04 13:41 40m - / -12 9A4ZM -7 / - 3 ✓ Closing fragment
11-04 13:36 40m - / - UX7QV +4 / - 7 Partial capture
11-04 13:03 40m - / -7 DJ0WJ -10 / - 4 ✓ Closing fragment
11-04 13:01 40m - / -12 9A4ZM -12 / - 2 Partial capture
11-04 12:54 40m - / - DJ0WJ -5 / - 6 Partial capture
11-04 12:54 40m - / +1 DL3TC 0 / - 4 ✓ Closing fragment
11-04 12:52 40m - / -2 DA1ST -13 / - 3 ✓ Closing fragment
11-04 11:12 40m - / -16 9A4ZM -10 / - 3 Partial capture
11-04 11:03 40m - / -15 9A4ZM -9 / - 3 Partial capture
11-04 10:55 40m - / -10 HA7TM +1 / - 3 ✓ Closing fragment
11-04 10:31 40m - / -7 PD7BDN -19 / - 5 Partial capture
11-04 10:30 40m - / - DB2HA -1 / - 9 Partial capture
11-04 10:27 40m - / +1 DH2NJS -18 / - 3 ✓ Closing fragment
11-04 10:23 40m - / -8 OE6OCG -14 / - 3 Partial capture
11-04 10:20 40m - / -19 S53AK -10 / - 4 ✓ Closing fragment
11-04 10:19 40m - / - HA7TM -4 / - 2 Partial capture
11-04 10:17 40m - / -5 DF2JK -22 / - 3 ✓ Closing fragment
11-04 10:15 40m - / - 9A4ZM -12 / - 2 Partial capture
11-02 15:36 40m - / - DA1ST -8 / - 6 Partial capture
10-31 09:34 40m - / - 9A4ZM -10 / - 2 Partial capture
10-31 09:33 40m - / -5 ON1DGN -20 / - 2 ✓ Closing fragment
10-31 09:27 40m - / -10 F4MSA -11 / - 2 Partial capture
10-31 09:26 40m - / -4 DJ0MAB -10 / - 4 Partial capture
10-31 09:24 40m - / - DL6UM -3 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
171845  -4 1491  ON3LBU DL1DEU JN59 (x3)
172030 -12 1491  CQ ON3LBU JO21
172045  -6 1491  ON3LBU 9A1CCB JN85
172100 -17 1491  9A1CCB ON3LBU +14
172115  -7 1491  ON3LBU 9A1CCB R-06 (x3)
172230 -17 1491  CQ ON3LBU JO21 (x2)
172315  -7  890  ON3LBU DM2CNE JO73 (x3)
172445 -18 1491  ON3LBU OE5DML 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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