HB9IJL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Switzerland Most frequent locator attributed to this token: JN37

Receiver-side FT8 activity involving HB9IJL, decoded by SO8OO in southeastern Poland. 62 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-28 and 2026-09-17.

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 62 FT8 messages attributed to HB9IJL as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 20 m (19%) and 10 m (19%). Most decodes (81%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

62
Messages attributed
6
UTC dates decoded
11
Active 15-min windows
-12 dB
Estimated median S/N

Bands

40m · 38 20m · 12 10m · 12
First attributed message: 2026-06-28
Last attributed message: 2026-09-17 20:28 UTC

Observed FT8 message patterns

Attributed sample
62 messages
Active dates
6 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-19 to -7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 13.

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 HB9IJL 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 HB9IJL

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
JN37 · 28 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,116 km (approx.)
Last such locator decoded
2026-09-17 20:28 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 UTCBandHB9IJL S/NCounterpartCounterpart S/NMsgsCapture
09-17 20:27 40m -12 / - G0WTZ - / - 2 Partial capture
09-17 20:26 40m -17 / - S55X - / - 3 Partial capture
09-16 21:19 40m -10 / - 2E0UMK - / 0 3 Partial capture
09-16 21:11 40m -10 / - UX5UW - / - 8 Partial capture
09-16 21:08 40m -14 / - SP7TF - / - 2 Partial capture
09-13 14:10 40m - / -9 PD0LBY -22 / - 2 Partial capture
09-13 14:08 40m - / -11 MW0USK -21 / - 2 ✓ Closing fragment
09-12 19:57 40m - / -7 S52D +15 / - 3 ✓ Closing fragment
09-12 19:54 40m -11 / - IC8TEM - / +5 3 Partial capture
09-12 19:52 40m -7 / - DL6LG -14 / - 2 Partial capture
09-12 19:49 40m - / - IC8TEM 0 / - 2 Partial capture
09-12 19:49 40m -5 / -12 YO4NF +10 / +6 4 ✓ Full exchange observed
09-12 19:43 40m - / - DJ0MAB +6 / - 2 Partial capture
09-12 19:42 40m -12 / - OR1A - / -6 2 ✓ Closing fragment
08-30 13:57 20m -10 / - PD1B - / -15 4 Partial capture
06-29 22:50 20m -20 / - K1SM - / -9 4 Partial capture
06-29 22:40 20m - / -10 EC3A -15 / - 2 ✓ Closing fragment
06-29 22:40 20m - / -3 IK1RQX -7 / - 3 ✓ Closing fragment
06-29 22:27 20m -17 / - A61DD - / -2 2 Partial capture
06-29 22:17 20m - / - EA1IOK -10 / - 3 Partial capture
06-29 22:15 20m - / 0 LZ2VQ -14 / - 4 ✓ Closing fragment
06-28 16:28 10m -18 / - SP6CE - / - 4 Partial capture
06-28 16:23 10m -10 / - 4X1YY - / - 2 Partial capture
06-28 16:23 10m -10 / - DO1FDK -18 / -12 6 Partial capture
06-28 16:22 10m -10 / - OM5AX - / +2 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
211415 -12 2198  UX5UW HB9IJL RRR (x2)
211515 -11 2198  CQ HB9IJL JN37 (x3)
211845 -15 2198  UX7QV HB9IJL RRR
211915  -5 2198  2E0UMK HB9IJL +00 (x3)
212045 -16 2198  OZ5AGJ HB9IJL -05
202600 -17 1799  S55X HB9IJL JN37 (x3)
202730 -18 1797  G0WTZ HB9IJL JN37 (x2)
20m 
UTC    dB Audio  Message
223530 -19 2109  W3XOX HB9IJL JN37
223945 -19 2205  HB9IJL E2WWA RR73
224045 -10 2607  HB9IJL IK1RQX JN44
224045 -16 2045  HB9IJL EC3A -10
224115  -8 2607  HB9IJL IK1RQX R-03 (x2)
224215 -14 2045  HB9IJL EC3A RR73
225030 -19 2021  K1SM HB9IJL JN37 (x4)
135730  -8 1489  PD1B HB9IJL JN37 (x4)
10m 
UTC    dB Audio  Message
162200 -10 1219  OM5AX HB9IJL R+02 (x2)
162315 -18 2446  HB9IJL DO1FDK JO41
162330 -11 1295  4X1YY HB9IJL JN37
162345 -17 2446  HB9IJL DO1FDK JO41
162400  -8 1295  4X1YY HB9IJL JN37
162430  -7 2445  DO1FDK HB9IJL -12 (x4)
162800 -19 1572  SP6CE HB9IJL JN37 (x4)

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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