KA1WPM — 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: FN31

Receiver-side FT8 activity involving KA1WPM, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-10 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 10 FT8 messages attributed to KA1WPM as the transmitting token by decoded message structure across 4 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 -11 dB; no usual signal pattern is inferred.

Overview

10
Messages attributed
4
UTC dates decoded
4
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-09-10
Last attributed message: 2026-09-20 23:24 UTC

Observed FT8 message patterns

Attributed sample
10 messages
Active dates
4 UTC dates
Estimated median S/N
-11 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 1.

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 KA1WPM in decoded directed-looking exchanges:

Most frequent locator attributed to KA1WPM

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
FN31 · 7 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
6,913 km (approx.)
Last such locator decoded
2026-09-20 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 UTCBandKA1WPM S/NCounterpartCounterpart S/NMsgsCapture
09-14 23:56 40m - / -8 ER3PM -13 / - 2 ✓ Closing fragment
09-14 23:52 40m -11 / - D2ACE - / -11 4 ✓ Closing fragment
09-10 22:54 40m - / -17 HZ1TT +2 / - 4 ✓ Closing fragment
08-15 23:32 40m - / -18 F5RRS -10 / - 3 ✓ Closing fragment
08-15 23:31 40m - / -6 G5TV -22 / - 3 ✓ Closing fragment
08-15 23:29 40m - / -24 G0LZX -8 / - 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
225745 -17 2382  KA1WPM KA1CTL RR73
230100 -17 2382  T46W KA1WPM FN31
232315 -10 2581  IS0/IK2YCW KA1WPM R-01
232500  -5 2582  VA2KFU KA1WPM FN31
232630 -12 2582  W4LAB KA1WPM FN31
232900 -20 2131  HK1E KA1WPM FN31
235230 -10 2609  D2ACE KA1WPM FN31 (x4)
235515  -4 2609  KA1WPM R3PJV KO94
235630 -15 1083  KA1WPM ER3PM -08 (x2)
232445 -19 2305  TF8KW KA1WPM FN31
233030  -3 2304  KA1WPM EB3JT JN01
20m
UTC    dB Audio  Message
183845 -15 1934  KA1WPM LX7I -11

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.

CW

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

Explore CW reception at SO8OO

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