HB9GWX — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving HB9GWX, decoded by SO8OO in southeastern Poland. 577 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-21 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 577 FT8 messages attributed to HB9GWX as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (74%), followed by 20 m (25%) and 40 m (1%). In this small sample, the estimated median decoder S/N was +2 dB; no usual signal pattern is inferred.

Overview

577
Messages attributed
2
UTC dates decoded
34
Active 15-min windows
+2 dB
Estimated median S/N

Bands

40m · 8 20m · 144 10m · 425
First attributed message: 2026-06-21
Last attributed message: 2026-08-29 21:52 UTC

Observed FT8 message patterns

Attributed sample
577 messages
Active dates
2 UTC dates
Estimated median S/N
+2 dB
Estimated 10th-90th percentile
-8 to +10 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 528.

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 HB9GWX in decoded directed-looking exchanges:

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 HB9GWX

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 · 291 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
975 km (approx.)
Last such locator decoded
2026-08-29 21:52 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 UTCBandHB9GWX S/NCounterpartCounterpart S/NMsgsCapture
08-29 21:52 40m - / -5 F1PBZ 0 / - 3 Partial capture
08-29 21:52 40m - / - 2E0ROJ -4 / - 4 Partial capture
08-29 21:43 40m +19 / - A61OK - / - 3 Partial capture
08-29 21:10 20m - / - JA1NVF -14 / - 2 Partial capture
08-29 21:09 20m - / - W7PJS -9 / - 2 Partial capture
08-29 21:01 20m - / -21 K1WY -11 / - 2 Partial capture
08-29 20:44 20m - / -5 IZ0EAC -13 / - 3 Partial capture
08-29 20:16 20m +6 / - IK8IUQ - / +1 6 Partial capture
08-29 20:09 20m +7 / - BH5HIE - / -11 12 Partial capture
08-29 20:06 20m +4 / - BI4JJO - / -10 2 ✓ Closing fragment
08-29 19:46 20m -10 / - DM5WGL - / -24 3 Partial capture
08-29 19:42 20m -4 / - DM5WGL - / -24 3 Partial capture
08-29 19:16 20m +6 / - UA3NFG - / -6 11 Partial capture
08-29 19:14 20m - / -19 N4TD -20 / - 2 Partial capture
08-29 19:08 20m - / - N4TD -17 / - 4 Partial capture
08-29 19:07 20m - / - BG7BVI -20 / - 2 Partial capture
06-21 19:50 10m - / +2 PA3ANZ +3 / - 3 ✓ Closing fragment
06-21 19:45 10m - / - PA4F -10 / - 4 Partial capture
06-21 19:34 10m - / - DO1FDK -10 / - 4 Partial capture
06-21 19:34 10m - / -8 DO2PY -12 / - 3 ✓ Closing fragment
06-21 19:31 10m -5 / -16 PP5BP -21 / -8 4 ✓ Full exchange observed
06-21 19:22 10m -5 / - WP4OWI - / -17 5 Partial capture
06-21 19:17 10m -7 / - M7KSV - / -3 5 ✓ Closing fragment
06-21 19:14 10m - / - DA6BR -9 / - 3 Partial capture
06-21 19:14 10m -10 / - M1EAS - / +8 2 ✓ Closing fragment
06-21 19:12 10m - / - DO1FDK -9 / - 6 Partial capture
06-21 19:06 10m -7 / - EA1KCU - / 0 2 ✓ Closing fragment
06-21 18:57 10m - / -7 PY2FZ -16 / - 2 ✓ Closing fragment
06-21 18:53 10m -14 / - S55A - / - 2 ✓ Closing fragment
06-21 18:53 10m - / - DO1FDK -3 / - 4 Partial capture
06-21 18:45 10m - / - DO1FDK -1 / - 7 Partial capture
06-21 18:38 10m -2 / - DK3TNA - / -13 2 ✓ Closing fragment
06-21 18:35 10m - / - DO1FDK -1 / - 3 Partial capture
06-21 18:29 10m -7 / -3 IU8PML -10 / -10 7 ✓ Full exchange observed
06-21 18:22 10m -6 / - LA3WMA - / -11 2 ✓ Closing fragment
06-21 18:21 10m - / - DO1FDK -3 / - 15 Partial capture
06-21 18:19 10m 0 / - G1NXS - / -6 2 ✓ Closing fragment
06-21 18:13 10m +2 / - <...> - / -7 6 Partial capture
06-21 18:05 10m +3 / -24 F4NDC -2 / -20 12 Partial capture
06-21 17:59 10m +1 / - F4LZZ - / +8 8 Partial capture
06-21 17:57 10m -1 / - M7YNE - / -24 2 ✓ Closing fragment
06-21 17:49 10m +4 / - S79CMW - / -17 10 ✓ Closing fragment
06-21 17:37 10m +10 / - SV1BVH - / +7 2 ✓ Closing fragment
06-21 17:35 10m +8 / -8 IU5VLT 0 / - 5 ✓ Full exchange observed
06-21 17:33 10m +7 / - UR5FIX - / - 3 Partial capture
06-21 17:27 10m +4 / - SP5EXA - / - 6 Partial capture
06-21 17:22 10m -3 / -22 RK6DV -8 / -11 4 ✓ Full exchange observed
06-21 17:18 10m +1 / - IZ0EAE -13 / - 3 ✓ Closing observed
06-21 17:17 10m - / - F1SZC -10 / - 2 Partial capture
06-21 17:13 10m - / +1 F1PBZ +10 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
214315 +12 1051  CQ HB9GWX JN47
214345 +19  395  A61OK HB9GWX JN47 (x3)
214515 +17  396  CQ HB9GWX JN47 (x2)
215200  -3  541  HB9GWX 2E0ROJ IO92
215215 +17  541  CQ HB9GWX JN47
215230  +5 2785  HB9GWX F1PBZ -05
215230  -5  541  HB9GWX 2E0ROJ IO92
215245 +17  541  CQ HB9GWX JN47
215300  -6  541  HB9GWX 2E0ROJ IO92
215300  +2 2785  HB9GWX F1PBZ -05 (x2)
215330  -2  541  HB9GWX 2E0ROJ IO92
20m 
UTC    dB Audio  Message
210645  +0  706  CQ HB9GWX JN47 (x5)
210900  -9  394  HB9GWX W7PJS EM75
210915  +0  706  CQ HB9GWX JN47
210930  -9  393  HB9GWX W7PJS EM75
211015  -8  706  CQ HB9GWX JN47
211030 -13  854  HB9GWX JA1NVF PM95
211045  -5  706  CQ HB9GWX JN47
211100 -14  855  HB9GWX JA1NVF PM95
211345 -10  706  CQ HB9GWX JN47 (x3)
10m 
UTC    dB Audio  Message
193515 -12 2447  HB9GWX DO1FDK JO41
193515 -12  915  HB9GWX DO2PY 73
193545 -10 2448  HB9GWX DO1FDK JO41
193645  -3 2657  HB9GWX IQ4JO JN63
193815 -13 2447  HB9GWX DO1FDK JO41
194545 -12 2592  HB9GWX PA4F JO21 (x2)
194645  -4 2657  HB9GWX IQ4JO JN63
194645 -10 2590  HB9GWX PA4F JO21 (x2)
195045  +3  682  HB9GWX PA3ANZ JO22 (x3)
195445  -6 2656  HB9GWX IQ4JO JN63
200045  -4 1919  HB9GWX G0JCC IO82

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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