W5KMK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM26

Receiver-side FT8 activity involving W5KMK, decoded by SO8OO in southeastern Poland. 3 FT8 messages attributed to this token as transmitter, on 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-26 and 2026-08-11.

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 3 FT8 messages attributed to W5KMK as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The available sample contains attributed decodes on 80 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

3
Messages attributed
2
UTC dates decoded
2
Active 15-min windows
-
S/N pattern not inferred

Bands

80m · 3
First attributed message: 2026-07-26
Last attributed message: 2026-08-11 03:03 UTC

Observed FT8 message patterns

Attributed sample
3 messages
Active dates
2 UTC dates
S/N summary
Too few decodes
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

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 W5KMK in decoded directed-looking exchanges:

Most frequent locator attributed to W5KMK

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
EM26 · 3 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,581 km (approx.)
Last such locator decoded
2026-08-11 03:03 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 UTCBandW5KMK S/NCounterpartCounterpart S/NMsgsCapture
09-14 23:51 80m - / -18 EA8AJ -21 / - 3 ✓ Closing fragment
09-13 01:04 40m - / -10 EA8BS -9 / - 5 ✓ Closing fragment
09-11 04:21 80m - / -2 TI5CDA -15 / - 2 ✓ Closing fragment
09-05 01:28 80m - / -19 EI4KF +9 / - 4 ✓ Closing fragment
08-19 01:00 40m - / +3 V26K 0 / - 2 ✓ Closing fragment
08-19 00:39 40m - / -14 IC8TEM -2 / - 2 Partial capture
08-16 17:43 20m - / - RN1ON -4 / - 3 Partial capture
08-11 03:04 80m - / -4 DL1RWN +4 / - 2 Partial capture
08-11 03:03 80m -21 / -16 SP6JIU +21 / - 4 Partial capture
08-11 01:10 80m - / -23 SP6JIU +22 / - 2 ✓ Closing fragment
08-10 04:21 40m - / - F1HFP -17 / - 2 Partial capture
08-10 04:19 40m - / -6 SV7BAY -14 / - 2 Partial capture
08-10 04:16 40m - / - 9A4ZM -14 / - 2 Partial capture
08-10 04:16 40m - / -13 YO6LM -14 / - 2 Partial capture
07-26 02:11 80m - / - EB1LA -9 / - 4 Partial capture
07-26 02:10 80m - / - DK5WL -4 / - 2 Partial capture
07-26 02:07 80m - / - F4FPR -14 / - 2 Partial capture
07-26 02:06 80m - / - DK5WL +2 / - 3 Partial capture
07-26 02:02 80m - / +1 W4IEE -9 / - 2 ✓ Closing fragment
07-23 04:08 40m - / -10 I1RJP -5 / - 3 ✓ Closing fragment
07-21 00:45 40m - / - I1RJP -8 / - 2 Partial capture
07-21 00:44 40m - / - DK9OV -11 / - 3 Partial capture
07-21 00:39 40m - / - I1RJP -7 / - 3 Partial capture
07-21 00:22 40m - / - I1RJP -3 / - 3 Partial capture
07-21 00:13 40m - / - SV5BYP -17 / - 4 Partial capture
07-21 00:08 40m - / - SV5BYP -20 / - 4 Partial capture
07-21 00:07 40m - / - I1RJP -2 / - 3 Partial capture
07-21 00:04 40m - / - SV5BYP -21 / - 2 Partial capture
07-19 20:27 10m - / -20 PT9PA -9 / - 2 Partial capture
07-17 02:06 80m - / -16 SM6MUY +21 / - 3 ✓ Closing fragment
07-17 01:30 40m - / -14 EI2IXB -10 / - 2 ✓ Closing fragment
07-12 02:01 40m - / - I1RJP -9 / - 3 Partial capture
07-09 02:27 80m - / -1 W1C -24 / - 5 Partial capture
06-25 00:59 20m - / - I1RJP -7 / - 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
042100 -17 2290  W5KMK F1HFP JN28
042130 -15 1103  W5KMK P40AA +17
042130 -17 2290  W5KMK F1HFP JN28
003915  -5 2925  W5KMK IC8TEM JN70 (x2)
010045  +1 2755  W5KMK V26K +03 (x2)
010945 -21 1656  W5KMK HK4QXX FJ26
010445  -8  779  W5KMK EA8BS -10 (x5)
031145 -14 2097  W5KMK VP5/K5UR -09
234600  -6 1109  W5KMK G0IUS -05
80m 
UTC    dB Audio  Message
030400 +21 2653  W5KMK SP6JIU -16
030400  +5 2440  W5KMK DL1RWN JO64
030430 +21 2653  W5KMK SP6JIU -16
030430  +3 2441  W5KMK DL1RWN R-04
023400 -24 1165  W5KMK KD2QFW FN32
012815 +15  506  W5KMK EI4KF -19 (x4)
042115 -13 2301  W5KMK TI5CDA -02 (x2)
042215  -3  803  W5KMK ON8DM JO10
235145 -14 1191  W5KMK EA8AJ -18 (x3)
20m 
UTC    dB Audio  Message
005945  -8  267  W5KMK I1RJP JN45 (x2)
174330  -2 2899  W5KMK RN1ON LP04 (x3)
225230 -22 1383  W5KMK IU5HIU JN53
10m 
UTC    dB Audio  Message
202730  -9  580  W5KMK PT9PA -20 (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.

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