LU4BBI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Argentina Most frequent locator attributed to this token: GF05

Receiver-side FT8 activity involving LU4BBI, decoded by SO8OO in southeastern Poland. 24 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-08-29.

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 24 FT8 messages attributed to LU4BBI as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.

Overview

24
Messages attributed
2
UTC dates decoded
4
Active 15-min windows
-16 dB
Estimated median S/N

Bands

20m · 24
First attributed message: 2026-06-29
Last attributed message: 2026-08-29 20:51 UTC

Observed FT8 message patterns

Attributed sample
24 messages
Active dates
2 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-17 to -14 dB
Recurring-pattern threshold
Not met

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

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with LU4BBI in decoded directed-looking exchanges:

Most frequent locator attributed to LU4BBI

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
GF05 · 6 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
12,276 km (approx.)
Last such locator decoded
2026-08-29 20:45 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 UTCBandLU4BBI S/NCounterpartCounterpart S/NMsgsCapture
08-29 20:46 20m -15 / - UA6YW -19 / -10 4 ✓ Closing observed
08-29 20:45 20m -16 / - DC6KI - / -9 2 ✓ Closing fragment
08-25 23:11 40m - / - PA1PXL +3 / - 3 Partial capture
08-25 22:54 40m - / -18 PD2RAL -10 / - 4 Partial capture
08-25 22:45 40m - / - F5NBU +6 / - 4 Partial capture
08-25 22:39 40m - / - PC2J +7 / - 6 Partial capture
08-25 22:34 40m - / -18 EA1CQ -8 / - 4 ✓ Closing fragment
08-17 23:28 40m - / - G0ANS -10 / - 2 ✓ Closing fragment
08-17 22:59 20m - / -19 PD7BDN -16 / - 2 Partial capture
08-09 00:11 40m - / -20 YO6LM -6 / - 2 Partial capture
07-19 14:10 10m - / -9 OZ5VO -15 / - 3 Partial capture
07-18 22:27 20m - / -18 E75C -20 / - 2 ✓ Closing fragment
07-18 21:55 20m - / - DL1R +4 / - 9 Partial capture
07-18 21:50 20m - / -11 PD0BOR -12 / - 5 ✓ Closing fragment
07-18 21:37 40m - / -22 LB7ZG -4 / - 2 ✓ Closing fragment
07-12 23:41 40m - / -17 IU6STP -15 / - 3 ✓ Closing fragment
07-12 23:36 40m - / -16 F4KOL -6 / - 2 ✓ Closing fragment
07-12 23:33 40m - / -17 IU6STP -16 / - 2 Partial capture
07-12 23:28 40m - / - IU6STP -11 / - 3 Partial capture
07-12 23:28 40m - / -24 PD0LBY -20 / - 2 Partial capture
07-12 23:10 40m - / -17 R6LPF -16 / - 5 ✓ Closing fragment
07-12 23:03 40m - / -23 F5RRS -13 / - 4 Partial capture
07-12 22:11 40m - / - F5RRS -16 / - 2 Partial capture
07-12 22:05 40m - / -18 DK2SW -2 / - 7 Partial capture
07-12 22:00 40m - / -15 RA3TKS -18 / - 8 Partial capture
07-12 22:00 40m - / -18 SV3GKU -16 / - 2 ✓ Closing fragment
07-12 21:53 40m - / -22 IQ4JO -16 / - 3 ✓ Closing fragment
07-12 21:43 40m - / -12 IK0XBX -13 / - 6 ✓ Closing fragment
07-12 21:42 40m - / -18 DF1KBN -10 / - 2 ✓ Closing fragment
07-12 21:40 40m - / -16 DL3KVR -7 / - 4 ✓ Closing fragment
06-29 21:59 20m - / - RN1QG -14 / - 2 Partial capture
06-29 21:54 20m - / -15 LB1RJ -9 / - 6 ✓ Closing fragment
06-29 21:40 20m -14 / - SH4PLD - / -16 2 ✓ Closing fragment
06-29 21:39 20m -16 / -14 R4FDW -14 / -19 11 Partial capture
06-29 21:36 20m -14 / -12 G4DBW -12 / - 5 ✓ Closing observed
06-29 21:30 20m -16 / - EH5WWA - / - 4 Partial capture
06-29 21:29 20m - / -12 HB9TIH -21 / - 3 Partial capture
06-29 21:19 20m - / -17 R2UC -1 / - 3 Partial capture
06-29 20:17 10m - / -5 LA3BO +2 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
215845  +2 2720  LU4BBI DL1R JN58 (x3)
222730 -21 1942  LU4BBI E75C -18 (x2)
225945 -16 2366  LU4BBI PD7BDN JO22 (x2)
204500 -17 2367  CQ LU4BBI GF05                        a1
204530 -15 2366  DC6KI LU4BBI R-09 (x2)
204645 -19 2366  LU4BBI UA6YW LN04
204730 -15 2366  UA6YW LU4BBI -10 (x3)
205100 -13 2367  DF4FW LU4BBI -19
40m 
UTC    dB Audio  Message
224015  +8 2329  LU4BBI PC2J JO22 (x4)
224545 +10 2330  LU4BBI F5NBU JN28 (x4)
225445 -12 2329  LU4BBI PD2RAL -18 (x4)
231100  +6 2328  LU4BBI PA1PXL JO21 (x3)
10m 
UTC    dB Audio  Message
201715  +3 2667  LU4BBI LA3BO -05 (x2)
141130  -9 2369  LU4BBI PD0OTH JO21
142330 -21 1584  LU4BBI A99AA RR73
141045 -16 1037  LU4BBI OZ5VO -09 (x3)

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.

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