OZ/HB9TYU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark

Receiver-side FT8 activity involving OZ/HB9TYU, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-05 and 2026-09-07.

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 94 FT8 messages attributed to OZ/HB9TYU 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 -11 dB; no usual signal pattern is inferred.

Overview

94
Messages attributed
2
UTC dates decoded
10
Active 15-min windows
-11 dB
Estimated median S/N

Bands

40m · 94
First attributed message: 2026-09-05
Last attributed message: 2026-09-07 19:42 UTC

Observed FT8 message patterns

Attributed sample
94 messages
Active dates
2 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-18 to +3 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 32.

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).

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 UTCBandOZ/HB9TYU S/NCounterpartCounterpart S/NMsgsCapture
09-08 16:34 40m - / - YT3BL +12 / - 7 Partial capture
09-08 15:19 40m - / -14 DL1EMV -2 / - 2 Partial capture
09-08 14:41 40m - / -5 UR4LG +4 / - 4 Partial capture
09-08 03:20 40m - / -10 RW9WT -4 / - 2 Partial capture
09-07 21:11 40m - / - S58Z +12 / - 4 Partial capture
09-07 20:59 40m - / - JG1SYK -14 / - 2 Partial capture
09-07 19:37 40m 0 / 0 UB3ANV -9 / -8 2 Partial capture
09-07 19:36 40m 0 / - <...> -10 / - 4 ✓ Closing fragment
09-07 19:28 40m - / -7 OE6TNO +6 / - 10 Partial capture
09-07 19:27 40m +4 / - <...> +9 / - 6 ✓ Closing fragment
09-07 19:22 40m +5 / +1 SP6JIU +24 / - 2 Partial capture
09-07 19:22 40m +6 / - <...> +24 / - 3 ✓ Closing fragment
09-05 21:12 40m -7 / - F4MBU - / -5 8 Partial capture
09-05 21:01 40m - / - <...> -8 / - 2 ✓ Closing fragment
09-05 20:53 40m -11 / - <...> - / - 5 ✓ Closing fragment
09-05 20:49 40m -15 / -11 F6BHK -5 / -3 3 Partial capture
09-05 20:41 40m -14 / - <...> -2 / - 2 ✓ Closing fragment
09-05 20:40 40m - / -8 LY4Q -4 / - 2 Partial capture
09-05 20:36 40m - / - <...> -18 / - 2 ✓ Closing fragment
09-05 20:28 40m -13 / - G4MHJ - / -1 2 Partial capture
09-05 20:28 40m -12 / -17 UX7QG -16 / -7 3 Partial capture
09-05 20:24 40m -14 / - RN2F - / +9 2 Partial capture
09-05 20:23 40m -14 / - <...> -14 / - 4 ✓ Closing fragment
09-05 20:21 40m - / -8 TA4SSK -13 / - 2 Partial capture
09-05 20:11 40m -20 / - <...> - / - 4 Partial capture
09-05 20:03 40m - / - OZ2NYB/P -7 / - 5 Partial capture
09-05 20:03 40m - / - PD0LBY -6 / - 2 Partial capture
09-05 20:03 40m - / - <...> -12 / - 3 ✓ Closing fragment
09-05 19:59 40m -9 / - <...> +2 / - 2 ✓ Closing fragment
09-05 19:54 40m -13 / - <...> +7 / - 5 ✓ Closing fragment
09-05 19:53 40m -11 / -4 IU4DTV -4 / +1 2 Partial capture
09-05 19:51 40m -12 / -10 SP3SWJ -24 / -10 2 Partial capture
09-05 19:51 40m -16 / - <...> -12 / - 3 ✓ Closing fragment
09-05 19:50 40m -13 / -12 IU2HUQ -8 / -3 2 Partial capture
09-05 19:48 40m -12 / - IZ8PPI - / -13 2 Partial capture
09-05 19:39 40m -10 / - <...> +6 / - 7 ✓ Closing fragment
09-05 19:38 40m - / -19 LZ2VQ -5 / - 3 Partial capture
09-05 19:36 40m -10 / - DL3IAK - / -2 3 Partial capture
09-05 19:32 40m -8 / -5 SP6FME -16 / -1 2 Partial capture
09-05 19:30 40m -8 / - <...> - / - 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
070830  +7  278  OZ/HB9TYU DF0AWG -06
144115  +5 2960  OZ/HB9TYU UR4LG KN89 (x4)
151915  -1  444  OZ/HB9TYU DL1EMV JO31 (x2)
163400 +10 2968  OZ/HB9TYU YT3BL JN95 (x7)
191315 -17  277  OZ/HB9TYU HF5A R-08

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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