HB9DQK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN47

Receiver-side FT8 activity involving HB9DQK, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-24 and 2026-07-29.

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 32 FT8 messages attributed to HB9DQK as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (69%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

32
Messages attributed
6
UTC dates decoded
11
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-06-24
Last attributed message: 2026-07-29 14:51 UTC

Observed FT8 message patterns

Attributed sample
32 messages
Active dates
6 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-21 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 10.

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.

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 HB9DQK

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
JN47 · 8 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
975 km (approx.)
Last such locator decoded
2026-07-29 08:42 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 UTCBandHB9DQK S/NCounterpartCounterpart S/NMsgsCapture
07-29 14:50 20m -12 / -9 <...> -16 / -14 4 Partial capture
07-29 08:42 20m -16 / - HB10GBT - / - 2 Partial capture
07-28 19:23 80m - / +8 SES/IW2OEF +4 / - 2 Partial capture
07-28 19:03 20m -5 / - BH4ECL - / -1 2 ✓ Closing fragment
07-28 19:02 20m -16 / +2 R4FDW -13 / -9 5 ✓ Full exchange observed
07-28 19:01 20m +4 / - JF1LMB - / -9 2 ✓ Closing fragment
07-28 18:59 20m +5 / - RK0SC - / -9 2 ✓ Closing fragment
07-26 07:21 20m +2 / - OH8JEP - / - 2 Partial capture
07-13 14:22 20m -15 / - SP6AXW - / +2 2 ✓ Closing fragment
07-13 14:16 20m -15 / - VU3IHP - / -21 5 ✓ Closing fragment
06-24 13:15 20m -19 / -18 PD2WL -21 / -24 10 ✓ Full exchange observed
06-24 13:13 20m -16 / - RI0SP - / 0 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
190130  +4  414  JF1LMB HB9DQK -09 (x2)
190245 -13 1919  HB9DQK R4FDW +02
190300  -2 1077  BH4ECL HB9DQK -01 (x2)
190345 -13 1919  HB9DQK R4FDW +02 (x2)
190430 -16 1919  R4FDW HB9DQK R-09
190445 -13 1919  HB9DQK R4FDW RR73
084215 -16 1213  HB10GBT HB9DQK JN47 (x2)
145030 -14 1212  HB9DQK <...> -09
145045 -12 1213  <...> HB9DQK R-14
145100 -17 1212  HB9DQK <...> -09
145115 -11 1213  <...> HB9DQK R-14
80m
UTC    dB Audio  Message
192315  +5 1101  HB9DQK SES/IW2OEF +08 (x2)

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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