KK4HET — 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: EL88

Receiver-side FT8 activity involving KK4HET, decoded by SO8OO in southeastern Poland. 21 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 2026-09-10.

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 21 FT8 messages attributed to KK4HET 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 (52%), followed by 40 m (48%). In this small sample, the estimated median decoder S/N was -7 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

40m · 10 20m · 11

First attributed message: 2026-06-20
Last attributed message: 2026-09-10 03:08 UTC

Observed FT8 message patterns

Attributed sample: 21 messages
Active dates: 2 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -18 to -1 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 11.

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 KK4HET in decoded directed-looking exchanges:

5B4AMX · Cyprus EI2IXB · Ireland OA4ENG · Peru VA3QBR · Canada

Most frequent locator attributed to KK4HET

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: EL88 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,589 km (approx.)
Last such locator decoded: 2026-09-10 02:51 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 UTC	Band	KK4HET S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-30 03:03	40m	- / -13	5B4AMX	-16 / -	2	✓ Closing fragment
09-10 03:08	40m	- / -	RZ6L	0 / -	2	Partial capture
09-10 03:07	40m	-19 / -	OA4ENG	- / -17	2	✓ Closing fragment
09-10 02:54	40m	-14 / -	YN8ZAC	- / -15	2	Partial capture
09-10 02:50	40m	-17 / -	YN8ZAC	- / -	2	Partial capture
09-10 02:50	40m	- / -	R6FX	+6 / -	2	Partial capture
09-10 02:49	40m	-12 / -	VA3QBR	- / -10	2	✓ Closing fragment
09-10 02:47	40m	-14 / -6	EI2IXB	-4 / -7	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
024915 -14 2438  VA3QBR KK4HET R-10 (x2)
025000  +5 2439  KK4HET R6FX LN14 (x2)
025045 -16 1519  YN8ZAC KK4HET EL88 (x4)
030745 -19 1953  OA4ENG KK4HET R-17 (x2)
030830  -2 2793  KK4HET RZ6L KN97 (x2)
025800 -13  543  KK4HET EA9QD -17
030330 -13 2199  KK4HET 5B4AMX -13 (x2)

CW

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

Explore CW reception at SO8OO

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