K4DKD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM16

Receiver-side FT8 activity involving K4DKD, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-19 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 27 FT8 messages attributed to K4DKD as the transmitting token by decoded message structure across 2 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 -10 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 27

First attributed message: 2026-09-19
Last attributed message: 2026-09-20 00:18 UTC

Observed FT8 message patterns

Attributed sample: 27 messages
Active dates: 2 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -13 to -3 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 12.

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 K4DKD in decoded directed-looking exchanges:

N3GTY · United States N8HRZ · United States W1XI · United States

Most frequent locator attributed to K4DKD

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: FM16 · 15 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,551 km (approx.)
Last such locator decoded: 2026-09-20 00:18 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	K4DKD S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 00:16	40m	-12 / -	N3BBJ	- / -	5	Partial capture
09-20 00:15	40m	- / -	IZ8DBJ	-1 / -	2	Partial capture
09-20 00:13	40m	- / +2	OS4K	-16 / -	4	Partial capture
09-20 00:13	40m	- / -	PE1NPS	+8 / -	4	Partial capture
09-20 00:12	40m	- / -	F5PBG	+2 / -	2	Partial capture
09-20 00:12	40m	- / -	PD9OH	+4 / -	2	Partial capture
09-20 00:11	40m	-7 / -	W1XI	- / 0	2	✓ Closing fragment
09-20 00:10	40m	- / -	2E0BTX	-5 / -	2	Partial capture
09-20 00:09	40m	- / -	R7BN	+1 / -	8	Partial capture
09-20 00:06	40m	- / -	F5PBG	+3 / -	2	Partial capture
09-20 00:06	40m	- / -	PD9OH	+8 / -	3	Partial capture
09-20 00:01	40m	-10 / -	DK7ZT	- / -17	5	Partial capture
09-20 00:00	40m	- / -	PE1NPS	+7 / -	3	Partial capture
09-20 00:00	40m	-2 / -	N3GTY	- / -4	2	✓ Closing fragment
09-19 23:59	40m	- / -	IZ8DBJ	-11 / -	2	Partial capture
09-19 23:40	40m	- / -	PD0LBY	-8 / -	3	Partial capture
09-19 23:40	40m	- / -	PE1NPS	-4 / -	4	Partial capture
09-19 23:38	40m	-6 / +7	N8HRZ	-8 / -	5	✓ 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
001445  +1  765  K4DKD R7BN LN05
001445 +12  509  K4DKD PE1NPS JO22
001445 -20 1531  K4DKD OS4K +02
001500 -12  766  CQ K4DKD FM16
001515  +3  765  K4DKD R7BN LN05
001515  -4 1578  K4DKD IZ8DBJ JN70
001530 -12  766  CQ K4DKD FM16
001545 -15 1441  K4DKD JY5IB -18
001545  +2 1578  K4DKD IZ8DBJ JN70
001545 +12  765  K4DKD IK6DLK JN63
001600 -12  766  N3BBJ K4DKD FM16 (x5)

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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