N3OUC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States

Receiver-side FT8 activity involving N3OUC, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-21.

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 26 FT8 messages attributed to N3OUC as the transmitting token by decoded message structure across 1 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

26
Messages attributed
1
UTC dates decoded
2
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-09-21
Last attributed message: 2026-09-21 03:41 UTC

Observed FT8 message patterns

Attributed sample
26 messages
Active dates
1 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-16 to -4 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 10, 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. 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 UTCBandN3OUC S/NCounterpartCounterpart S/NMsgsCapture
09-21 03:39 40m -14 / - US5EAA +6 / -24 5 Partial capture
09-21 03:39 40m -14 / - W5MMW - / -7 2 Partial capture
09-21 03:37 40m -16 / -3 EB3JT -20 / - 3 ✓ Closing observed
09-21 03:37 40m -9 / -13 UR9QQ +6 / -13 7 ✓ Full exchange observed
09-21 03:35 40m - / -7 F5NBU +8 / - 3 ✓ Closing fragment
09-21 03:33 40m -14 / - SP6AMI - / -16 2 Partial capture
09-21 03:32 40m - / - EB3JT -10 / - 2 Partial capture
09-21 03:32 40m - / - UR9QQ +1 / - 3 Partial capture
09-21 03:31 40m - / - IU8RFW -4 / - 2 Partial capture
09-21 03:31 40m -10 / -1 MI7XHT -17 / -13 5 ✓ Full exchange observed
09-21 03:29 40m -6 / - SP6AMI - / -21 2 Partial capture
09-21 03:26 40m -6 / -16 RZ6LY 0 / - 6 ✓ Closing observed
09-21 03:25 40m -6 / - IK4TVP - / -17 2 ✓ Closing fragment
09-21 03:23 40m -5 / - CN8NS -6 / -13 4 ✓ Closing observed
09-21 03:20 40m -4 / - CN8NS - / -13 2 Partial capture
09-21 03:17 40m -11 / -20 CN8NS -7 / -18 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
033730 -21 1959  N3OUC EB3JT R-03
033745 -16 1960  EB3JT N3OUC RR73
033800  -1 2583  N3OUC UR9QQ KN77
033800  -8 1959  N3OUC IU8RFW JN70
033815  -7 1960  UR9QQ N3OUC -13
033830 +10 2583  N3OUC UR9QQ R-13
033845 -11 1960  UR9QQ N3OUC RR73
033900  +6 2583  N3OUC UR9QQ 73
033915 -14 1960  W5MMW N3OUC -07
033930  +5 2090  N3OUC US5EAA KN78
033945 -15 1960  W5MMW N3OUC -07
034000  +8 2090  N3OUC US5EAA KN78
034015 -16 1960  US5EAA N3OUC -24 (x3)
10m
UTC    dB Audio  Message
130300 -21 1968  N3OUC D2UY RR73

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