ON6DX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving ON6DX, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-24 and 2026-08-27.

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 21 FT8 messages attributed to ON6DX as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (71%), followed by 10 m (29%). In this small sample, the estimated median decoder S/N was -3 dB; no usual signal pattern is inferred.

Overview

21
Messages attributed
3
UTC dates decoded
4
Active 15-min windows
-3 dB
Estimated median S/N

Bands

First attributed message: 2026-07-24
Last attributed message: 2026-08-27 11:50 UTC

Observed FT8 message patterns

Attributed sample
21 messages
Active dates
3 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-22 to +6 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 11.

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 ON6DX in decoded directed-looking exchanges:

Most frequent locator attributed to ON6DX

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
JO21 · 13 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-08-17 23:24 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 UTCBandON6DX S/NCounterpartCounterpart S/NMsgsCapture
09-08 23:26 40m - / +6 D44TWO -20 / - 2 ✓ Closing fragment
09-08 23:22 40m - / -2 J38LD -7 / - 2 ✓ Closing fragment
08-27 11:49 10m -24 / - JA2KVB - / -2 2 ✓ Closing fragment
08-17 23:27 40m -16 / - PY4PK - / -21 2 ✓ Closing fragment
08-17 22:56 40m -4 / - OJ0YL - / - 4 Partial capture
08-17 22:49 40m +4 / - VJ6X - / - 8 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
225215  +0 2489  VJ6X ON6DX JO21 (x4)
225615  -1 2008  OJ0YL ON6DX JO21 (x4)
232445 -14 1599  <...> ON6DX JO21
232715 -16 1273  PY4PK ON6DX -21 (x2)
232215  -6  473  ON6DX J38LD -02 (x2)
232645 -18 1911  ON6DX D44TWO +06 (x2)
10m
UTC    dB Audio  Message
200430 -17 2105  CQ DX ON6DX JO21
200530 -12 2106  PY2MTG ON6DX 73
200600  -9 2106  PU2XEE ON6DX R-01
114915 -24 1910  JA2KVB ON6DX R-02 (x2)
115045 -22 1911  DL9KM ON6DX RR73

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee