ON8XT — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving ON8XT, decoded by SO8OO in southeastern Poland. 177 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-05.

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 177 FT8 messages attributed to ON8XT 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 -9 dB; no usual signal pattern is inferred.

Overview

177
Messages attributed
1
UTC dates decoded
7
Active 15-min windows
-9 dB
Estimated median S/N

Bands

40m · 177
First attributed message: 2026-09-05
Last attributed message: 2026-09-05 07:52 UTC

Observed FT8 message patterns

Attributed sample
177 messages
Active dates
1 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-12 to -6 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 103, strong (≥ -8 dB) 74.

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 ON8XT in decoded directed-looking exchanges:

Most frequent locator attributed to ON8XT

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 · 101 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-09-05 07:52 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 UTCBandON8XT S/NCounterpartCounterpart S/NMsgsCapture
09-05 07:46 40m - / - US1MM -15 / - 5 Partial capture
09-05 07:43 40m -8 / +2 DL9KM 0 / -2 6 ✓ Full exchange observed
09-05 07:41 40m -6 / - F1PBZ -10 / -13 3 ✓ Closing observed
09-05 07:39 40m - / -8 F1UFX -17 / - 3 Partial capture
09-05 07:37 40m -10 / -10 ON1BH -9 / -24 4 ✓ Full exchange observed
09-05 07:34 40m -9 / - EA5W - / -18 3 ✓ Closing fragment
09-05 07:31 40m -9 / - SO100PKP - / -12 3 ✓ Closing fragment
09-05 07:24 40m -12 / - F4NKF - / -21 3 ✓ Closing fragment
09-05 07:21 40m -12 / - HB9HDK - / -13 3 ✓ Closing fragment
09-05 07:20 40m -10 / -9 OK2PHI -18 / -11 4 ✓ Full exchange observed
09-05 07:17 40m -12 / +9 SP5ALV +2 / -6 7 ✓ Full exchange observed
09-05 07:09 40m -10 / -1 9A3AUH -3 / -7 6 ✓ Full exchange observed
09-05 07:08 40m - / - SP5ALV 0 / - 5 Partial capture
09-05 07:03 40m -10 / - GJ0KYZ - / +5 2 ✓ Closing fragment
09-05 06:57 40m -9 / - OE3CJB - / - 2 ✓ Closing fragment
09-05 06:57 40m - / - US1MM -4 / - 6 Partial capture
09-05 06:54 40m -9 / - SO100PKP - / -13 3 ✓ Closing fragment
09-05 06:52 40m -8 / - SA7BYQ - / -16 3 ✓ Closing fragment
09-05 06:49 40m -9 / - F4NJT - / -8 2 ✓ Closing fragment
09-05 06:47 40m -10 / +1 DK5HH -24 / -9 4 ✓ Full exchange observed
09-05 06:45 40m -7 / -12 SP7TF -4 / -9 3 ✓ Full exchange observed
09-05 06:43 40m -7 / - DC9GT - / +2 3 ✓ Closing fragment
09-05 06:40 40m -7 / - F4AWT - / -13 3 ✓ Closing fragment
09-05 06:36 40m -8 / +6 DK5DW -6 / -21 6 ✓ Full exchange observed
09-05 06:36 40m - / - YO3GNF -1 / - 2 Partial capture
09-05 06:34 40m -4 / -2 DF8RU +3 / +4 5 ✓ Full exchange observed
09-05 06:33 40m - / - YO3GNF -3 / - 3 Partial capture
09-05 06:30 40m -8 / - F1PSX - / -12 3 ✓ Closing fragment
09-05 06:30 40m -8 / -10 SP5EXA +16 / +4 9 ✓ Full exchange observed
09-05 06:29 40m -6 / - SO100PKP - / -17 2 ✓ Closing fragment
09-05 06:26 40m -10 / - DL6LG -5 / -20 4 ✓ Closing observed
09-05 06:26 40m - / +2 S54ZGA -13 / - 2 Partial capture
09-05 06:24 40m -9 / - EA2AUK - / -5 3 ✓ Closing fragment
09-05 06:22 40m -7 / +4 EW6DM +2 / -16 6 ✓ Full exchange observed
09-05 06:20 40m - / - EU6KA -10 / - 5 Partial capture
09-05 06:20 40m -7 / - OH3MB -10 / -10 3 Partial capture
09-05 06:20 40m - / - SP5EXA +18 / - 4 Partial capture
09-05 06:19 40m - / - DH5NC -11 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
074700 -15 1610  ON8XT US1MM KO30
074715  -6 1608  CQ ON8XT JO21
074730 -16 1609  ON8XT US1MM KO30
074745  -4 1608  CQ ON8XT JO21
074800 -14 1609  ON8XT US1MM KO30
074815  -5 1608  CQ ON8XT JO21
074830 -15 1608  ON8XT US1MM KO30
074845  -6 1608  CQ ON8XT JO21 (x8)

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