HB9ZZ — 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: JN47

Receiver-side FT8 activity involving HB9ZZ, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-01 and 2026-10-05.

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 8 FT8 messages attributed to HB9ZZ as the transmitting token by decoded message structure across 2 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 -1 dB; no usual signal pattern is inferred.

Overview

8
Messages attributed
2
UTC dates decoded
2
Active 15-min windows
-1 dB
Estimated median S/N

Bands

First attributed message: 2026-10-01
Last attributed message: 2026-10-05 15:33 UTC

Observed FT8 message patterns

Attributed sample
8 messages
Active dates
2 UTC dates
Estimated median S/N
-1 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 8.

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 HB9ZZ in decoded directed-looking exchanges:

Most frequent locator attributed to HB9ZZ

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 · 4 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
975 km (approx.)
Last such locator decoded
2026-10-05 15:32 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 UTCBandHB9ZZ S/NCounterpartCounterpart S/NMsgsCapture
10-05 15:35 40m - / +4 DL0HAM +2 / - 7 Partial capture
10-05 15:32 40m -2 / +1 SP9MZU -5 / +2 5 ✓ Full exchange observed
10-01 19:32 40m +5 / - EA8FB - / -4 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
193415 +10 1188  EA8FB HB9ZZ R-04 (x2)
153230  -3 1040  SP9MZU HB9ZZ JN47
153245 -10 1539  HB9ZZ SP9MZU +01
153300  -2 1039  SP9MZU HB9ZZ R+02
153315  +0 1540  HB9ZZ SP9MZU RR73
153330  -1 1040  SP9MZU HB9ZZ 73
153345 -13 1040  HB9ZZ F6FHZ JN18
153515  +6 1685  HB9ZZ DL0HAM JO62 (x7)

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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