K4HXM — 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: FM07

Receiver-side FT8 activity involving K4HXM, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-22.

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 17 FT8 messages attributed to K4HXM 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 (100%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.

Overview

17
Messages attributed
2
UTC dates decoded
6
Active 15-min windows
-12 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-08-22 22:42 UTC

Observed FT8 message patterns

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

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 2.

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 K4HXM in decoded directed-looking exchanges:

Most frequent locator attributed to K4HXM

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
FM07 · 10 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,591 km (approx.)
Last such locator decoded
2026-08-22 22:42 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 UTCBandK4HXM S/NCounterpartCounterpart S/NMsgsCapture
10-02 22:57 40m - / -24 DJ6GI -5 / - 4 Partial capture
10-02 22:45 40m - / -20 EA1FAW -15 / - 4 Partial capture
10-02 22:42 40m - / -7 HI8JCD -19 / - 2 Partial capture
09-27 23:17 40m - / -18 EA5HM -15 / - 5 Partial capture
09-22 23:41 40m - / -11 G0NGL -12 / - 16 Partial capture
08-27 22:43 20m - / - RL6MT -4 / - 2 Partial capture
08-27 22:42 20m - / - DL3MIB +9 / - 7 Partial capture
08-27 22:42 20m - / -5 SV5BYP -12 / - 4 ✓ Closing fragment
08-24 23:33 40m - / -20 IU0NAD -7 / - 3 Partial capture
08-23 12:00 20m - / - F1PPH -4 / - 9 Partial capture
08-22 22:40 20m -12 / - N0SNO - / - 3 Partial capture
08-16 19:33 20m - / -14 EA4T -18 / - 3 ✓ Closing fragment
08-16 19:23 20m - / -8 EA4T -17 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
231700 -19 1389  K4HXM EA5HM IM99 (x5)
224215 -19 1710  K4HXM HI8JCD -07 (x2)
224545 -18 1472  K4HXM EA1FAW -20 (x4)
225715  -9 2479  K4HXM DJ6GI JO43 (x4)
20m
UTC    dB Audio  Message
120445  +4  570  K4HXM F1PPH JN07 (x2)
224200 -18 2016  K4HXM SV5BYP KM46
224200  +7 1049  K4HXM DL3MIB JN57
224230 -13 2016  K4HXM SV5BYP KM46
224230  +8 1049  K4HXM DL3MIB JN57
224300  -8 2016  K4HXM SV5BYP R-05
224300  +9 1049  K4HXM DL3MIB JN57
224330  -7 2016  K4HXM SV5BYP 73
224330  -5 2527  K4HXM RL6MT LN08
224330  +7 1049  K4HXM DL3MIB JN57
224400  -4 2526  K4HXM RL6MT LN08
224400  +6 1049  K4HXM DL3MIB JN57 (x3)

CW

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

Explore CW reception at SO8OO

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