WA4KBM — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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. 16 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-09-20.

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 16 FT8 messages attributed to WA4KBM as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (88%), followed by 40 m (13%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.

Overview

16
Messages attributed
2
UTC dates decoded
5
Active 15-min windows
-20 dB
Estimated median S/N

Bands

First attributed message: 2026-06-20
Last attributed message: 2026-09-20 23:54 UTC

Observed FT8 message patterns

Attributed sample
16 messages
Active dates
2 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) 16, 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).

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 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,310 km (approx.)
Last such locator decoded
2026-09-20 23:54 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
10-31 21:54 40m - / - EA3ACA -15 / - 4 Partial capture
10-28 21:33 40m - / - DF2UA -13 / - 3 Partial capture
10-25 23:05 40m - / -8 CT1BFP -20 / - 3 Partial capture
10-25 22:59 40m - / -8 CT1BFP -18 / - 6 Partial capture
10-25 22:59 40m - / - DL1OBF -10 / - 4 ✓ Closing fragment
10-25 22:56 40m - / - DG5PW -15 / - 5 Partial capture
10-24 08:05 40m - / +4 GJ0KYZ -18 / - 2 Partial capture
10-24 07:59 40m - / -17 F4LNM -11 / - 4 ✓ Closing fragment
10-24 07:47 40m - / - F4BYA -5 / - 4 Partial capture
10-23 23:12 40m - / -9 EI4LE -9 / - 2 Partial capture
10-23 22:55 40m - / -9 G1LQT -10 / - 4 Partial capture
10-23 22:50 40m - / -14 ON1JP -15 / - 4 Partial capture
10-23 22:43 40m - / -11 M0DPK -13 / - 8 Partial capture
10-22 22:30 40m - / - G0MSE -9 / - 2 Partial capture
10-18 22:55 40m - / -16 F1PBZ -6 / - 3 ✓ Closing fragment
10-18 22:50 40m - / -6 IK2ZJR -11 / - 3 ✓ Closing fragment
10-12 22:15 40m - / - CT4KQ -22 / - 2 Partial capture
10-10 00:11 40m - / - CT3MD -14 / - 4 Partial capture
10-05 23:18 40m - / -5 CT3IQ -12 / - 4 ✓ Closing fragment
09-30 23:22 40m - / - F4MCI -15 / - 2 Partial capture
09-30 23:20 40m - / - F4BYA +15 / - 4 Partial capture
09-30 23:10 40m - / - F4BYA +10 / - 4 Partial capture
09-30 22:53 40m - / - F4BQS -7 / - 9 Partial capture
09-30 22:52 40m - / -8 F4EGM +2 / - 5 Partial capture
09-30 22:48 40m - / -13 EC3A -5 / - 4 ✓ Closing fragment
09-30 22:48 40m - / - M7TUP -8 / - 4 Partial capture
09-30 22:46 40m - / -11 LB7ZG +3 / - 5 ✓ Closing fragment
09-30 22:45 40m - / - F6FDY -14 / - 4 Partial capture
09-30 22:42 40m - / - OP1D -11 / - 3 Partial capture
09-30 22:39 40m - / -13 EC3A -12 / - 2 Partial capture
09-30 22:37 40m - / - LB7ZG +3 / - 3 Partial capture
09-30 22:34 40m - / - IK1DFH -4 / - 4 Partial capture
09-27 23:19 40m - / - G4YAN +3 / - 7 Partial capture
09-27 23:12 40m - / -12 PD2RAL -6 / - 10 Partial capture
09-27 23:03 40m - / -13 OS4K -15 / - 3 Partial capture
09-27 22:42 40m - / - OT8T -3 / - 5 Partial capture
09-27 22:39 40m - / -11 F1PBZ -11 / - 5 ✓ Closing fragment
09-27 22:27 40m - / - F4BYA +4 / - 2 Partial capture
09-27 22:26 40m - / - MW1CFA -12 / - 2 Partial capture
09-26 23:44 80m - / -17 EA8AJ -6 / - 2 ✓ Closing fragment
09-21 22:27 40m - / +1 ON3MOH -7 / - 2 Partial capture
09-20 23:43 40m - / - AJ8B -14 / - 2 Partial capture
09-20 23:35 40m - / - M0PEL -2 / - 3 Partial capture
09-20 22:46 40m - / -25 G0NGL -6 / - 3 ✓ Closing fragment
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

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
230215  -5 2232  WA4KBM DL1OBF 73
230215 -15 1476  WA4KBM CT1BFP R-08 (x5)
213345 -12 1846  WA4KBM DF2UA JN49 (x3)
214415 -11 1982  WA4KBM EA3ACA JN01 (x6)
80m
UTC    dB Audio  Message
234415  -6 1277  WA4KBM EA8AJ R-17 (x2)
013200 +10 2765  WA4KBM F5HNQ IN98
004415 -24 1369  WA4KBM ON1JP -21
20m
UTC    dB Audio  Message
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)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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