KR4DWD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EL88

Receiver-side FT8 activity involving KR4DWD, decoded by SO8OO in southeastern Poland. 1,378 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-12.

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 1,378 FT8 messages attributed to KR4DWD as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (90%), followed by 40 m (10%) and 80 m (0%). Most decodes (97%) fell within the six-hour window 23:00-05:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

1,378

Messages attributed

UTC dates decoded

102

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 5 40m · 136 20m · 1,237

First attributed message: 2026-06-07
Last attributed message: 2026-09-12 03:13 UTC

Observed FT8 message patterns

Attributed sample: 1,378 messages
Active dates: 17 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -19 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 354, moderate (-15 to -9 dB) 508, strong (≥ -8 dB) 516.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with KR4DWD in decoded directed-looking exchanges:

EA2DYB · Spain ×2 KJ5MRD · United States ×2 A61QQ · United Arab Emirates EA3CU · Spain EA5FAY · Spain F4EGM · France KC8JPM · United States KC9MU · United States KD4YTW · United States KE8SRY · United States KS0MIK · United States N2LQH · United States

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to KR4DWD

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 · 606 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,589 km (approx.)
Last such locator decoded: 2026-09-12 03:13 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	KR4DWD S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 02:40	80m	- / -21	EA2DYB	-2 / -	3	✓ Closing fragment
09-14 01:01	80m	- / -24	ON1JP	-20 / -	2	Partial capture
09-13 23:42	80m	- / +7	F1PBZ	+2 / -	6	Partial capture
09-13 23:40	80m	- / -18	EA4HPY	-6 / -	2	✓ Closing fragment
09-13 02:56	80m	- / +1	VP2MAA	-10 / -	2	✓ Closing fragment
09-13 02:09	80m	- / -22	SP6JIU	+22 / -	3	✓ Closing fragment
09-13 02:07	80m	- / -	S51TN	+11 / -	4	Partial capture
09-13 01:57	80m	- / -18	F4DIA	0 / -	2	✓ Closing fragment
09-13 01:49	80m	- / -	US2YW	+13 / -	3	Partial capture
09-13 01:48	80m	- / -19	TF3VS	-4 / -	3	✓ Closing fragment
09-13 01:45	80m	- / -20	DH1KJ	+1 / -	3	✓ Closing fragment
09-13 01:44	80m	- / -19	ON1JP	-15 / -	6	Partial capture
09-12 02:35	40m	- / -10	CT7AXN	-18 / -	3	Partial capture
09-12 02:07	40m	-12 / -	SV1BLD	-16 / -	2	✓ Closing observed
09-12 01:46	40m	- / -15	UX1VT	-20 / -	2	Partial capture
09-12 01:41	40m	- / +1	GM6URC	-14 / -	3	Partial capture
09-12 01:37	40m	- / -18	HZ1TT	-10 / -	2	✓ Closing fragment
08-26 00:59	20m	-18 / -	PD0DDA	- / -25	2	Partial capture
08-26 00:58	20m	-16 / -	WB2RRF	- / -5	2	✓ Closing fragment
08-26 00:49	20m	-18 / -	9Y4DG	- / -18	2	Partial capture
08-26 00:43	20m	-15 / +4	N2LQH	-9 / +4	6	✓ Full exchange observed
08-26 00:39	20m	-16 / -	N4OPI	- / +1	2	✓ Closing fragment
08-26 00:31	20m	-13 / -	KS0MIK	- / -16	2	✓ Closing fragment
08-26 00:30	20m	-15 / -	KC9MU	- / +7	2	✓ Closing fragment
08-26 00:25	20m	-12 / -	WA2HIP	- / -15	2	✓ Closing fragment
08-23 01:24	40m	-15 / -	HC1DAZ	- / -	2	✓ Closing fragment
08-23 01:18	40m	- / -	RD7O	+12 / -	2	Partial capture
08-23 01:14	40m	- / +6	PD0IFI	0 / -	2	✓ Closing fragment
08-23 01:09	40m	-13 / -	K4JGC	- / +7	2	Partial capture
08-23 01:06	40m	-18 / -	KJ5MRD	- / -	2	✓ Closing fragment
08-23 01:06	40m	- / -	RD7O	-5 / -	3	Partial capture
08-23 00:59	40m	- / -	UB3KGW	0 / -	3	Partial capture
08-23 00:55	40m	- / -16	IZ7RJT	-14 / -	6	Partial capture
08-23 00:54	40m	-19 / -	N8DRJ	- / 0	2	✓ Closing fragment
08-23 00:53	40m	- / -	RD7O	-3 / -	5	Partial capture
08-23 00:51	40m	- / -	DL6LG	-10 / -	3	Partial capture
08-23 00:49	40m	-21 / +4	PD0IFI	+2 / -15	12	Partial capture
08-23 00:49	40m	- / -	M0PEL	-9 / -	5	Partial capture
08-23 00:47	40m	- / -	RV6F	-15 / -	6	Partial capture
08-23 00:45	40m	-24 / -14	RD3FY	-16 / -24	3	Partial capture
08-23 00:45	40m	-23 / -14	RZ6AKF	+1 / -18	7	✓ Full exchange observed
08-23 00:44	40m	- / -	OH8LXT	-8 / -	2	Partial capture
08-23 00:43	40m	- / -14	DK0ACI	-1 / -	3	Partial capture
08-23 00:41	40m	- / -	PE1NPS	-8 / -	3	Partial capture
08-23 00:41	40m	-21 / -11	UA3GDJ	+6 / -	4	✓ Closing observed
08-23 00:35	40m	- / -15	RU3FA	+2 / -	4	✓ Closing fragment
08-23 00:35	40m	- / -	M0PEL	-10 / -	5	Partial capture
08-23 00:32	40m	- / -	RX3DCZ	0 / -	5	Partial capture
08-23 00:30	40m	-22 / -	KB3MTU	- / -	2	✓ Closing fragment
08-23 00:25	40m	-19 / -10	R2SL	+5 / -9	8	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
025630 -12  998  KR4DWD VP2MAA RR73
234000  -6 2091  KR4DWD EA4HPY -18 (x2)
234200  +6  704  KR4DWD F1PBZ +07 (x6)
001015  -7 2547  KR4DWD N1NK RR73
010145 -20 1504  KR4DWD ON1JP -24 (x2)
024015  -3 1246  KR4DWD EA2DYB IN83 (x3)

40m

UTC    dB Audio  Message
020630 -11 2677  CQ KR4DWD EL88 (x2)
020715 -16 2451  KR4DWD SV1BLD KM17
020800 -12 2678  SV1BLD KR4DWD RR73
020830 -11 2677  CQ KR4DWD EL88 (x3)
021030 -11 2677  KC7MVO KR4DWD -08
021130 -12 2677  CQ KR4DWD EL88
023545 -19 1541  KR4DWD CT7AXN -10 (x3)
023745  -7 2678  KR4DWD VE3XN EN93
024615 -13 2679  KR4DWD N2FBV FN30
031315 -16 2653  CQ KR4DWD EL88                        a1

20m

UTC    dB Audio  Message
004900 -17 1915  9Y4DG KR4DWD R-18 (x2)
005100 -18 1913  N8QQS KR4DWD -13
005130 -18 1914  CQ KR4DWD EL88
005330 -18 2067  KF8BED KR4DWD EL88
005500 -17 2067  CQ KR4DWD EL88                        a1 (x5)
005800 -17 2067  WB2RRF KR4DWD -05 (x2)
005900 -20 2066  PD0DDA KR4DWD -25 (x2)
010000 -23 2066  CQ KR4DWD EL88                        a1

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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