WA4KBM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM19

Receiver-side FT8 activity involving WA4KBM, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-20.

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 14 FT8 messages attributed to WA4KBM as the transmitting token by decoded message structure across 1 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 -20 dB; no usual signal pattern is inferred.

Overview

14
Messages attributed
1
UTC dates decoded
3
Active 15-min windows
-20 dB
Estimated median S/N

Bands

20m · 14
First attributed message: 2026-06-20
Last attributed message: 2026-06-20 00:45 UTC

Observed FT8 message patterns

Attributed sample
14 messages
Active dates
1 UTC dates
Estimated median S/N
-20 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 0, 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 WA4KBM in decoded directed-looking exchanges:

Most frequent locator attributed to WA4KBM

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
FM19 · 9 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,310 km (approx.)
Last such locator decoded
2026-06-20 00:45 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 UTCBandWA4KBM S/NCounterpartCounterpart S/NMsgsCapture
09-14 22:13 40m - / -18 IU1QYF -3 / - 5 ✓ Closing fragment
09-14 21:59 40m - / -9 EA8UP -8 / - 3 ✓ Closing fragment
09-14 21:54 40m - / -23 G0DYW -7 / - 3 ✓ Closing fragment
09-13 22:48 40m - / -15 IZ4EFV -11 / - 3 ✓ Closing fragment
09-13 22:27 40m - / -17 IK3BVD -12 / - 3 ✓ Closing fragment
09-13 22:16 40m - / -14 F4CQS -2 / - 2 ✓ Closing fragment
08-30 22:55 40m - / - DL3MIB -6 / - 7 Partial capture
08-30 22:04 20m - / -9 IK8EQG -10 / - 4 ✓ Closing fragment
08-30 21:58 20m - / -17 KE4NVI -8 / - 2 ✓ Closing fragment
08-18 22:44 40m - / -17 F5NBU -3 / - 5 Partial capture
08-13 22:55 40m - / -14 G5TV -18 / - 3 ✓ Closing fragment
08-12 22:47 20m - / -4 OZ8ABE -4 / - 2 ✓ Closing fragment
08-12 22:27 20m - / -3 CR7BRV -10 / - 3 ✓ Closing fragment
08-08 12:36 20m - / -16 MI0JZZ +4 / - 2 ✓ Closing fragment
08-02 22:26 20m - / -13 CT1BFP -23 / - 2 Partial capture
08-01 22:15 20m - / -17 M9KTM +2 / - 6 ✓ Closing fragment
07-31 21:16 20m - / -14 F4MZI -2 / - 2 ✓ Closing fragment
07-30 21:57 20m - / - PH7R +3 / - 2 Partial capture
07-30 21:54 20m - / -24 IW9FRA -10 / - 4 ✓ Closing fragment
07-30 21:21 20m - / -17 G4SRT -9 / - 3 ✓ Closing fragment
07-30 21:20 20m - / -14 M1DOZ -14 / - 3 ✓ Closing fragment
07-29 22:16 20m - / +3 MM3WYM -13 / - 3 ✓ Closing fragment
07-26 23:22 40m - / -19 A71XX -15 / - 5 ✓ Closing fragment
07-26 23:13 40m - / - EB1LA -18 / - 2 Partial capture
07-22 22:01 20m - / - DG5PW -13 / - 2 Partial capture
07-06 23:44 20m - / -13 PD1HPB -16 / - 4 ✓ Closing fragment
07-06 23:28 20m - / - IK4LZH -6 / - 4 Partial capture
07-04 00:17 40m - / -18 OH5WWA -14 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
224815 -11 2010  WA4KBM IZ4EFV JN64 (x3)
225445  -3  680  WA4KBM CT2HEX R-03
215400  -7 1193  WA4KBM G0DYW IO91 (x3)
215930  -7 1784  WA4KBM EA8UP -09 (x3)
221330  -7 2331  WA4KBM IU1QYF JN44 (x5)
20m 
UTC    dB Audio  Message
222715 -23 1826  WA4KBM CT1BFP R-13
123615  +4 2780  WA4KBM MI0JZZ -16 (x2)
222730  -8  605  WA4KBM CR7BRV IM58 (x3)
224700  -2 1838  WA4KBM OZ8ABE R-04 (x2)
215815  -8 1000  WA4KBM KE4NVI -17 (x2)
220345  -3 2576  WA4KBM F1PBZ -14
220415 -11 1077  WA4KBM IK8EQG JN71 (x4)
80m 
UTC    dB Audio  Message
003300  -5 2109  WA4KBM RR73; KG4LDK <...> -16

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