HB9DUT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN36

Receiver-side FT8 activity involving HB9DUT, decoded by SO8OO in southeastern Poland. 1 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-07-23.

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 1 FT8 messages attributed to HB9DUT as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

1
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-
S/N pattern not inferred

Bands

First attributed message: 2026-07-23
Last attributed message: 2026-07-23 13:49 UTC

Observed FT8 message patterns

Attributed sample
1 messages
Active dates
1 UTC dates
S/N summary
Too few decodes
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

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 HB9DUT in decoded directed-looking exchanges:

Most frequent locator attributed to HB9DUT

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
JN36
SO8OO receiver locator
KN09VW
Locator-centre separation
1,158 km (approx.)
Last such locator decoded
2026-07-23 13:49 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 UTCBandHB9DUT S/NCounterpartCounterpart S/NMsgsCapture
07-26 12:05 20m - / -11 DG1KFR -21 / - 2 Partial capture
07-23 13:17 20m - / -18 OZ9FF -16 / - 2 ✓ Closing fragment
07-23 12:25 20m - / -15 DK3HV -12 / - 2 ✓ Closing fragment
07-23 12:23 20m - / -8 TK5K -8 / - 3 ✓ Closing fragment
07-23 12:13 20m - / - DL3JAC -14 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
122330 -11  532  HB9DUT TK5K -08 (x3)
122530 -14 1207  HB9DUT DK3HV R-15 (x2)
122930 -16 2245  HB9DUT SV1CQN -10
131745 -17 2324  HB9DUT OZ9FF -18 (x2)
133115 -21 1420  HB9DUT R4LBP RR73
134315 -15  913  HB9DUT CT1EDA -15
134930 -22 1207  PD4RJ HB9DUT JN36
143400 -12 2170  HB9DUT SV5AZK -14
143900 -21 1241  HB9DUT ON8PB -03
120545 -20 1920  HB9DUT DG1KFR -11 (x2)

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