KC1J — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN32

Receiver-side FT8 activity involving KC1J, decoded by SO8OO in southeastern Poland. 38 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-27 and 2026-09-21.

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 38 FT8 messages attributed to KC1J as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (66%), followed by 40 m (34%). Most decodes (100%) 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 -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 25 40m · 13

First attributed message: 2026-08-27
Last attributed message: 2026-09-21 04:46 UTC

Observed FT8 message patterns

Attributed sample: 38 messages
Active dates: 4 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -13 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 16.

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 KC1J in decoded directed-looking exchanges:

4X1UF · Israel EI2IXB · Ireland KC4RNF · United States N4DWD · United States YO4NF · Romania DL3OCF · Fed. Rep. of Germany EC3A · Spain F4LZZ · France F6ECI · France G0BLB · England HK4QHD · Colombia K4JJL · 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 KC1J

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: FN32 · 8 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,837 km (approx.)
Last such locator decoded: 2026-09-21 00:12 UTC

Other locator fields attributed to this token: FN30 (1).

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	KC1J S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 04:46	80m	-6 / -	M22LYF	- / -21	2	Partial capture
09-21 04:43	80m	-16 / -	HK4QHD	- / +2	2	✓ Closing fragment
09-21 04:41	80m	- / -13	GM6URC	-6 / -	4	Partial capture
09-21 04:40	80m	- / -19	YO7CFD	+14 / -	3	Partial capture
09-21 04:40	80m	-6 / -12	F4LZZ	-11 / -	4	✓ Closing observed
09-21 04:40	80m	- / -	F5RRS	+2 / -	2	Partial capture
09-21 04:40	80m	-11 / -1	F6ECI	+3 / 0	7	✓ Full exchange observed
09-21 04:35	80m	-6 / -7	G0BLB	-4 / -7	6	✓ Full exchange observed
09-21 04:34	80m	-9 / -	WA4TED	- / -4	2	✓ Closing fragment
09-21 04:34	80m	- / -	DL2RPN	-13 / -	2	Partial capture
09-21 04:33	80m	-9 / -1	SM5DIC	+7 / -19	11	✓ Full exchange observed
09-21 04:32	80m	-9 / -8	F4LZZ	-12 / -19	10	Partial capture
09-21 04:32	80m	-5 / -	N7PWZ	- / -15	2	✓ Closing fragment
09-21 04:31	80m	- / -3	F1PBZ	+5 / -	3	Partial capture
09-21 04:31	80m	- / -	US7KC	+9 / -	3	Partial capture
09-21 04:31	80m	- / -18	YO7CFD	+13 / -	4	Partial capture
09-21 04:31	80m	-10 / -5	DL3OCF	+3 / -2	17	✓ Full exchange observed
09-21 04:30	80m	- / -	ES6DO	-11 / -	9	Partial capture
09-21 04:28	80m	- / -13	EC3A	-18 / -	3	✓ Closing fragment
09-21 04:28	80m	- / -15	OM3ZAS	-7 / -	2	Partial capture
09-21 00:11	40m	-10 / -	A61DD	- / -	2	Partial capture
09-21 00:07	40m	- / +6	N4DWD	-12 / -	3	✓ Closing fragment
09-20 23:57	40m	-6 / -	A61DD	- / -	3	Partial capture
09-20 23:56	40m	-9 / -	4X1UF	-13 / -18	4	✓ Closing observed
09-09 02:17	40m	- / -	F5PBG	+6 / -	6	Partial capture
09-09 02:16	40m	- / -	RZ6L	-1 / -	2	Partial capture
09-09 02:15	40m	- / -	5Z4VJ	-3 / -	4	Partial capture
09-04 01:17	40m	- / -4	HI3JCC	-18 / -	3	Partial capture
08-27 01:54	40m	-13 / -	UR4SXA	- / -	2	Partial capture
08-27 01:53	40m	- / -12	EI2IXB	-4 / -	2	✓ Closing fragment
08-26 20:39	20m	- / -	DL5DF	+3 / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
044215  +7 2222  KC1J F6ECI 73
044215 -10 2360  KC1J F4LZZ R-02
044215  -2  227  KC1J DL3OCF -04
044230  -6 2414  F4LZZ KC1J RR73
044245  -9 1778  KC1J GM6URC -13
044245 -15 2360  KC1J F4LZZ 73
044245  -2  227  KC1J DL3OCF -07
044300 -20 2414  HK4QHD KC1J +02 (x2)
044400  -6 2414  DL3OCF KC1J R-15
044415  +1  227  KC1J DL3OCF RR73
044430 -12 2415  DL3OCF KC1J 73
044530  -7 2414  SQ3MZU KC1J -01
044600  -7 2414  M22LYF KC1J -21 (x2)

40m

UTC    dB Audio  Message
235600  -9  364  4X1UF KC1J R-18
235615 -16  229  KC1J 4X1UF RR73
235630  -9  364  4X1UF KC1J R-18
235645 -10  229  KC1J 4X1UF RR73
235700  -7  364  A61DD KC1J FN32 (x3)
000300  -8  364  YO4NF KC1J 73
000400 -10  364  W9MDM KC1J RRR
000600 -10  364  PY1USK KC1J FN32
000745 -11  876  KC1J N4DWD EM86 (x3)
001130 -10  364  A61DD KC1J FN32 (x2)

20m

UTC    dB Audio  Message
203930  -3 1298  KC1J DL5DF JO52 (x5)
222215 -15  752  KC1J K3JDG FN33

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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