HB9TUL — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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

Receiver-side FT8 activity involving HB9TUL, decoded by SO8OO in southeastern Poland. 13 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-19 and 2026-10-21.

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 13 FT8 messages attributed to HB9TUL as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.

Overview

13
Messages attributed
3
UTC dates decoded
3
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-10-19
Last attributed message: 2026-10-21 12:20 UTC

Observed FT8 message patterns

Attributed sample
13 messages
Active dates
3 UTC dates
Estimated median S/N
-11 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 3, 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. 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 HB9TUL in decoded directed-looking exchanges:

Most frequent locator attributed to HB9TUL

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 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,116 km (approx.)
Last such locator decoded
2026-10-21 12:20 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 UTCBandHB9TUL S/NCounterpartCounterpart S/NMsgsCapture
10-20 14:00 40m - / - PD1AC -15 / - 2 Partial capture
10-20 13:53 40m -21 / - 9A4ZM -7 / +5 4 ✓ Closing observed
10-20 13:52 40m - / +2 HB9CEX +1 / - 3 ✓ Closing fragment
10-20 13:51 40m -20 / - PA2WDR - / - 2 Partial capture
10-20 13:48 40m -6 / - EX7CQ - / - 5 Partial capture
10-19 11:46 40m -17 / -15 OE3SKB -14 / -10 9 ✓ Full exchange observed
10-19 11:45 40m - / - DJ0MAB -13 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
135115 -17 1877  PA2WDR HB9TUL JN37
135200  +3  639  HB9TUL HB9CEX +02
135215 -24 1877  PA2WDR HB9TUL JN37
135330  +0  639  HB9TUL HB9CEX -05
135330  -7 1872  HB9TUL 9A4ZM JN86
135400  +0  639  HB9TUL HB9CEX RR73
135430  -7 1872  HB9TUL 9A4ZM JN86
135445 -21 1873  9A4ZM HB9TUL +05
135530  -6 1872  HB9TUL 9A4ZM 73
135645 -16 2489  DK7ZT HB9TUL 73
135700 -19 1693  HB9TUL OH1TEV KP20
140000 -16  859  HB9TUL PD1AC JO22 (x2)
121930 -11 1079  HB9HKJ HB9TUL JN37
122030 -13  746  F4FHM/QRP HB9TUL JN37

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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