LU5HCB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Argentina Most frequent locator attributed to this token: FF88

Receiver-side FT8 activity involving LU5HCB, decoded by SO8OO in southeastern Poland. 86 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-22.

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 86 FT8 messages attributed to LU5HCB as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (83%), followed by 10 m (16%) and 40 m (1%). Several six-hour UTC windows tied for the largest share (84%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

86
Messages attributed
5
UTC dates decoded
15
Active 15-min windows
-16 dB
Estimated median S/N

Bands

40m · 1 20m · 71 10m · 14
First attributed message: 2026-06-07
Last attributed message: 2026-08-22 23:29 UTC

Observed FT8 message patterns

Attributed sample
86 messages
Active dates
5 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-22 to -10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 43, moderate (-15 to -9 dB) 38, strong (≥ -8 dB) 5.

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 LU5HCB in decoded directed-looking exchanges:

Most frequent locator attributed to LU5HCB

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
FF88 · 29 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
12,286 km (approx.)
Last such locator decoded
2026-08-22 23:26 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 UTCBandLU5HCB S/NCounterpartCounterpart S/NMsgsCapture
09-19 23:34 40m - / - DD1VB +5 / - 4 Partial capture
09-16 22:39 40m - / - PA1PXL -14 / - 4 Partial capture
09-16 22:38 40m - / - IZ4AFM +8 / - 2 Partial capture
09-16 22:38 40m - / -16 G0ANS -4 / - 2 Partial capture
09-16 22:32 40m - / -12 G0ANS -3 / - 2 Partial capture
08-22 23:33 20m - / -4 DL2AX -4 / - 3 ✓ Closing fragment
08-22 23:30 20m - / -20 UA6CE -8 / - 2 ✓ Closing fragment
08-22 23:30 20m - / -10 OE7MAH -12 / - 2 Partial capture
08-22 23:29 20m -8 / - RA0AF - / +9 2 ✓ Closing fragment
08-22 23:24 20m -11 / - DL750RTG - / -16 2 Partial capture
08-22 23:23 20m -9 / - KJ1R - / -5 3 Partial capture
08-22 23:17 20m - / - DD8HG -14 / - 3 Partial capture
08-22 23:11 20m - / -18 DB3EH -8 / - 7 ✓ Closing fragment
08-22 23:08 20m - / - DA1EA +2 / - 4 ✓ Closing fragment
08-22 22:48 20m -12 / - OK1JR -12 / -14 3 Partial capture
08-22 22:45 20m -12 / - DL4LBT -8 / -14 5 ✓ Closing observed
08-22 22:41 20m -15 / - DL9UXF - / -14 2 Partial capture
08-22 22:40 20m -12 / -20 TA1CQ -7 / -7 4 ✓ Full exchange observed
08-22 22:37 20m -13 / -15 E70SZ +2 / - 7 ✓ Closing observed
08-14 23:22 20m - / - S57LU -1 / - 7 Partial capture
08-14 23:03 20m - / - S57LU 0 / - 2 Partial capture
08-14 22:12 20m - / - LZ4VR -17 / - 4 Partial capture
08-14 22:05 20m - / - LZ4VR -20 / - 2 Partial capture
07-07 23:53 20m -20 / - RA3TKS - / -7 2 ✓ Closing fragment
07-07 23:48 20m -20 / - IU5TSN - / -3 2 ✓ Closing fragment
07-07 23:37 20m - / - LZ2VQ -14 / - 2 Partial capture
07-07 23:36 20m -22 / -5 IW5BT -22 / +5 2 Partial capture
07-07 23:31 20m - / -10 IW5BT -24 / - 2 Partial capture
07-07 22:57 20m - / - EI7LK -5 / - 3 Partial capture
07-07 22:41 20m - / -9 M7NHD -6 / - 4 ✓ Closing fragment
07-07 22:37 20m - / -12 G4UZG -14 / - 4 ✓ Closing fragment
07-07 22:28 20m - / - G7RCQ -15 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
223430 -16 2259  LU5HCB PA1PXL JO21
223700 -16 1906  LU5HCB DK7ZT -08
223800  -5 2259  LU5HCB G0ANS -16
223830  +9  352  LU5HCB IZ4AFM JN64
223830  -3 2259  LU5HCB G0ANS -16
223900  +6  352  LU5HCB IZ4AFM JN64
223900 -10  877  LU5HCB DK5WL JN39
223930 -13 2260  LU5HCB PA1PXL JO21 (x4)
233445  +4 2263  LU5HCB DD1VB JN39 (x4)
20m 
UTC    dB Audio  Message
232415 -13 1358  KJ1R LU5HCB -08
232445 -11 1358  DL750RTG LU5HCB -16 (x2)
232545 -10 1358  CQ LU5HCB FF88 (x2)
232645 -10 1358  BH4PPY LU5HCB -14
232915  -9 1358  RA0AF LU5HCB R+09 (x2)
233000 -13 2907  LU5HCB OE7MAH -10
233030  -8 1359  LU5HCB UA6CE -20 (x2)
233100 -10 2907  LU5HCB OE7MAH -10
233300  -5 1358  LU5HCB DL2AX JO51 (x3)

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