KA1BJX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN42

Receiver-side FT8 activity involving KA1BJX, decoded by SO8OO in southeastern Poland. 12 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-26.

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 12 FT8 messages attributed to KA1BJX as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

12
Messages attributed
4
UTC dates decoded
6
Active 15-min windows
-17 dB
Estimated median S/N

Bands

First attributed message: 2026-06-10
Last attributed message: 2026-08-26 00:00 UTC

Observed FT8 message patterns

Attributed sample
12 messages
Active dates
4 UTC dates
Estimated median S/N
-17 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 0.

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 KA1BJX in decoded directed-looking exchanges:

Most frequent locator attributed to KA1BJX

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
FN42 · 7 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
6,716 km (approx.)
Last such locator decoded
2026-08-26 00:00 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 UTCBandKA1BJX S/NCounterpartCounterpart S/NMsgsCapture
08-28 00:59 20m - / -21 XQ1KK -1 / - 2 ✓ Closing fragment
08-25 23:51 20m -20 / - IU5AWQ - / -15 3 ✓ Closing fragment
08-25 21:13 20m -11 / - F1PBZ - / 0 2 Partial capture
08-21 19:50 20m - / -14 TF3VS -12 / - 2 ✓ Closing fragment
08-11 23:49 20m - / -12 F1PBZ -6 / - 2 Partial capture
08-06 23:14 20m - / -11 HB9TIH -19 / - 4 ✓ Closing fragment
07-31 21:57 20m - / -9 GM3JIM -18 / - 3 ✓ Closing fragment
07-16 01:16 20m - / -10 LZ1KU -4 / - 2 ✓ Closing fragment
06-29 01:41 20m - / -16 OD5KU -4 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
231645 -17 1756  KA1BJX HB9TIH 73
234915  -9 2773  KA1BJX F1PBZ -12 (x2)
195030 -14 2083  KA1BJX TF3VS R-14 (x2)
211215 -14 2381  CQ KA1BJX FN42 (x2)
211345 -10 2381  F1PBZ KA1BJX R+00 (x2)
235115 -24 1824  IU5AWQ KA1BJX FN42 (x3)
000000 -19 2218  9A3TY KA1BJX FN42
005915  -1  714  KA1BJX XQ1KK -21 (x2)

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