DT — FT8 activity observed at SO8OO

Receiver-side FT8 activity involving DT, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-08-28.

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 DT as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (38%) and 20 m (13%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.

Overview

8
Messages attributed
5
UTC dates decoded
5
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-06-09
Last attributed message: 2026-08-28 15:31 UTC

Observed FT8 message patterns

Attributed sample
8 messages
Active dates
5 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) 0, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 2.

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 UTCBandDT S/NCounterpartCounterpart S/NMsgsCapture
08-28 15:31 80m - / - IS +2 / - 2 Partial capture
07-17 19:55 40m -13 / - R1IO - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
153115  -3 1594  SYNC DT PSE
153145  +1 1595  DT IS 17 (x2)
40m
UTC    dB Audio  Message
195545 -12 2081  R1IO DT TIME (x3)
20m
UTC    dB Audio  Message
003945 -10  815  CHECK DT

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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