S52C — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovenia Most frequent locator attributed to this token: JN76

Receiver-side FT8 activity involving S52C, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-04.

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 9 FT8 messages attributed to S52C 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 +3 dB; no usual signal pattern is inferred.

Overview

9
Messages attributed
1
UTC dates decoded
2
Active 15-min windows
+3 dB
Estimated median S/N

Bands

First attributed message: 2026-09-04
Last attributed message: 2026-09-04 17:31 UTC

Observed FT8 message patterns

Attributed sample
9 messages
Active dates
1 UTC dates
Estimated median S/N
+3 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) 9.

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 S52C in decoded directed-looking exchanges:

Most frequent locator attributed to S52C

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
JN76 · 2 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
631 km (approx.)
Last such locator decoded
2026-09-04 17:27 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 UTCBandS52C S/NCounterpartCounterpart S/NMsgsCapture
09-04 17:30 40m 0 / -6 IU5HIU -9 / -3 7 ✓ Full exchange observed
09-04 17:29 40m - / - DL3IAK -9 / - 2 Partial capture
09-04 17:28 40m +2 / - R4IK +3 / -7 5 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
172745  -4 2592  S52C F1PBZ -10
172800  -1 2492  R4IK S52C R-07
172815  +3 2491  S52C R4IK RR73
172900  +3 2492  R4IK S52C R-07
172915  -9  342  S52C DL3IAK JN49
172930  +5 2492  R4IK S52C R-07
172945  -9  341  S52C DL3IAK JN49
173000  +3 2492  R4IK S52C R-07
173015 -10 2731  S52C IU5HIU JN53
173030  -3 2492  IU5HIU S52C -03
173045  -7 2731  S52C IU5HIU R-06
173100  -1 2492  IU5HIU S52C RR73
173115  -8 2731  S52C IU5HIU 73
173130  +3 2492  IU5HIU S52C RR73
173315 -11 2731  S52C IU5HIU 73

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