LU7DUE — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving LU7DUE, decoded by SO8OO in southeastern Poland. 85 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-07-28.

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 85 FT8 messages attributed to LU7DUE as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (89%), followed by 20 m (11%). Most decodes (99%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -5 dB.

Overview

85
Messages attributed
7
UTC dates decoded
11
Active 15-min windows
-5 dB
Estimated median S/N

Bands

20m · 9 10m · 76
First attributed message: 2026-06-12
Last attributed message: 2026-07-28 12:34 UTC

Observed FT8 message patterns

Attributed sample
85 messages
Active dates
7 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-14 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 60.

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 LU7DUE in decoded directed-looking exchanges:

Most frequent locator attributed to LU7DUE

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 · 32 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
12,276 km (approx.)
Last such locator decoded
2026-06-29 19:45 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 UTCBandLU7DUE S/NCounterpartCounterpart S/NMsgsCapture
09-16 21:43 40m - / - DF7EF +2 / - 18 Partial capture
08-28 11:39 20m - / - SK2TT -19 / - 4 Partial capture
08-28 11:24 20m - / - SK2TT -19 / - 2 Partial capture
08-08 21:01 20m - / - HB9TIH -14 / - 2 Partial capture
08-07 21:27 40m - / -24 EH1SAR -23 / - 3 Partial capture
08-01 21:12 40m - / - EA7ALL -11 / - 6 Partial capture
08-01 21:11 40m - / -13 UR5SD +1 / - 3 Partial capture
08-01 21:09 40m - / -17 IK4RVY -18 / - 2 ✓ Closing fragment
07-31 20:49 20m - / -16 TA4SM -14 / - 2 Partial capture
07-31 20:48 20m - / -13 PD5MVH -1 / - 9 Partial capture
07-31 20:46 20m - / -18 TA3GO +2 / - 2 ✓ Closing fragment
07-31 20:44 20m - / - M0LAD -4 / - 3 Partial capture
07-30 21:42 20m - / -14 ON4NYO -10 / - 2 ✓ Closing fragment
07-26 19:06 10m - / -13 HB10GBT -12 / - 3 Partial capture
07-25 17:45 10m - / - IW2HUS -19 / - 4 Partial capture
07-24 21:48 80m - / - DD7EE -2 / - 2 Partial capture
07-24 20:51 20m - / -10 HB9EXE -16 / - 5 ✓ Closing fragment
07-22 19:41 10m - / -8 PD3AFI -9 / - 3 ✓ Closing fragment
07-21 18:41 10m - / - LZ5XP -5 / - 2 Partial capture
07-18 19:01 10m - / -13 R6OD +2 / - 4 ✓ Closing fragment
07-17 22:31 40m - / -15 ON4VMA -8 / - 3 ✓ Closing fragment
07-17 21:21 20m - / -19 YV5WL -17 / - 2 ✓ Closing fragment
07-17 21:01 20m - / -22 IK4TVP -6 / - 5 Partial capture
07-17 20:06 20m - / -22 SV5BYP -10 / - 4 Partial capture
07-17 12:44 20m - / - UB4FGK -12 / - 2 Partial capture
07-03 20:18 20m - / -12 F5RAV -2 / - 2 Partial capture
07-03 20:13 20m - / -20 G4YLJ -10 / - 5 Partial capture
07-03 19:33 10m - / -6 HB9CEX -6 / - 2 Partial capture
07-01 22:32 80m - / -14 LA4SIA -18 / - 2 ✓ Closing fragment
06-26 20:44 20m - / -17 EW2ZC -18 / - 2 Partial capture
06-26 19:52 20m - / -18 IZ5BLN -14 / - 3 Partial capture
06-24 17:04 10m - / -9 IU6OSN -9 / - 5 ✓ Closing fragment
06-23 22:32 40m - / - IU7RQC -16 / - 2 Partial capture
06-23 22:32 40m - / - US2YW -7 / - 3 Partial capture
06-23 22:31 40m - / -20 E74MG -4 / - 2 ✓ Closing fragment
06-23 22:16 80m - / -19 LA9GX +11 / - 2 ✓ Closing fragment
06-23 21:16 20m - / -2 M7LYG -4 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
221600 +15 1903  LU7DUE LA9GX -19 (x2)
223230 -17 1592  LU7DUE LA4SIA -14 (x2)
214815  -1  925  LU7DUE DD7EE JO41 (x2)
012145 -17  199  LU7DUE R9LE MO27
40m 
UTC    dB Audio  Message
214445  +0  355  LU7DUE DF7EF JO30 (x15)
20m 
UTC    dB Audio  Message
205045  -5 2263  LU7DUE PD5MVH -13 (x4)
204430 -22 1991  LU7DUE SV5BYP RR73
204545 +17 2961  LU7DUE G0VXE -20
210100 -11 1447  LU7DUE HB9TIH JN36 (x2)
112045 -19 2315  LU7DUE RA0SE -20
112415 -23 1573  LU7DUE SK2TT JP94 (x6)
10m 
UTC    dB Audio  Message
194115 -14  914  LU7DUE PD3AFI JO21 (x3)
174545 -20 1779  LU7DUE IW2HUS JN45 (x5)
180645  -8  888  LU7DUE PD1HPB JO22
190600  -9 1178  LU7DUE HB10GBT -13 (x3)
123445 -14  945  YO8DHD LU7DUE -08
192345 -19 1468  LU7DUE DA1VID JO31
174215 -12 2040  LU7DUE DG1IAH -18

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.

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