KC2YYF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN21

Receiver-side FT8 activity involving KC2YYF, decoded by SO8OO in southeastern Poland. 71 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-06 and 2026-07-12.

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 71 FT8 messages attributed to KC2YYF 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 (77%), followed by 40 m (20%) and 20 m (3%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

80m · 55 40m · 14 20m · 2

First attributed message: 2026-07-06
Last attributed message: 2026-07-12 02:59 UTC

Observed FT8 message patterns

Attributed sample: 71 messages
Active dates: 4 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -24 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 0.

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 KC2YYF in decoded directed-looking exchanges:

IQ4JO · Italy ×3 R6OK · European Russia ×2 DO1OAS · Fed. Rep. of Germany ×2 9A2AA · Croatia CS8ABF · Azores DF7EF · Fed. Rep. of Germany DK9NP · Fed. Rep. of Germany EA3GXK · Spain EA3HRE · Spain EA4HQH · Spain F4LNM · France F4MTU · France

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 KC2YYF

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: FN21 · 34 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,033 km (approx.)
Last such locator decoded: 2026-07-12 02:58 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	KC2YYF S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-12 05:31	40m	- / -14	S59YL	-12 / -	2	✓ Closing fragment
07-12 05:23	40m	- / -9	DL9HK	-3 / -	3	✓ Closing fragment
07-12 04:59	40m	- / +8	DL6NDN	-4 / -	2	✓ Closing fragment
07-12 04:44	40m	- / -10	OZ5ABO	-21 / -	2	✓ Closing fragment
07-12 04:37	40m	- / -5	HB9DGK	-5 / -	2	✓ Closing fragment
07-12 04:16	40m	- / +1	DG1KFR	-12 / -	2	✓ Closing fragment
07-12 03:58	40m	- / -	ON3CX	-14 / -	4	✓ Closing fragment
07-12 03:16	40m	- / 0	DA1MK	-8 / -	2	✓ Closing fragment
07-12 03:14	40m	- / +6	DL2VEL	-18 / -	2	✓ Closing fragment
07-12 02:56	80m	- / -	DO1YSF	-9 / -	2	Partial capture
07-12 02:22	40m	-17 / -	PD1WMD	-15 / -	2	✓ Closing observed
07-12 02:11	40m	- / -14	SV2KD	-7 / -	3	✓ Closing fragment
07-12 02:01	40m	- / -13	RN6LPC	-14 / -	3	✓ Closing fragment
07-12 01:49	40m	- / -19	DL4GCJ	-3 / -	7	✓ Closing fragment
07-12 01:30	40m	- / -10	UB6SAN	0 / -	3	✓ Closing fragment
07-12 01:20	40m	- / +1	DL1SRS	-13 / -	4	✓ Closing fragment
07-12 01:03	40m	- / -	IK4LZH	-1 / -	4	Partial capture
07-12 00:19	40m	- / -15	IU2UCH	-6 / -	3	✓ Closing fragment
07-12 00:16	40m	- / -18	RA3WY	-9 / -	3	✓ Closing fragment
07-12 00:10	40m	- / -	DK2MAX	-10 / -	2	✓ Closing fragment
07-11 23:58	40m	- / -5	HB9HRR	-10 / -	3	Partial capture
07-11 23:43	40m	- / -12	DF8RU	+8 / -	6	✓ Closing fragment
07-11 23:36	20m	- / -	R8CKD	-4 / -	2	Partial capture
07-11 23:28	20m	- / -13	UA9CMR	-12 / -	2	Partial capture
07-11 10:06	20m	- / -24	EA3HRE	-10 / -	3	✓ Closing fragment
07-11 09:52	20m	- / -5	EC2ASL	-20 / -	2	Partial capture
07-11 09:49	20m	- / -16	IW5DLY	-18 / -	2	✓ Closing fragment
07-11 09:22	20m	- / -20	UA6FZ	-9 / -	3	✓ Closing fragment
07-11 06:57	20m	- / -14	OZ6ABL	-9 / -	2	✓ Closing fragment
07-11 06:55	20m	- / -	9A2AA	-4 / -	2	✓ Closing fragment
07-11 06:52	20m	- / -15	LZ1ZJ	-14 / -	3	✓ Closing fragment
07-11 06:45	20m	- / -24	I4BUQ	-14 / -	4	✓ Closing fragment
07-11 06:25	20m	- / -14	IU5TUG	-12 / -	2	✓ Closing fragment
07-11 06:07	20m	- / -	DG4YT	-16 / -	9	Partial capture
07-11 06:04	20m	- / -	R7OV	-18 / -	2	Partial capture
07-11 06:03	20m	- / -	DG4YT	-14 / -	3	Partial capture
07-11 05:58	20m	- / -15	RC3D	+14 / -	2	✓ Closing fragment
07-11 05:57	20m	- / -	DG4YT	-14 / -	2	Partial capture
07-11 05:56	20m	- / -10	IU0TPA	-5 / -	3	✓ Closing fragment
07-11 05:56	20m	- / -	R7OV	-22 / -	2	Partial capture
07-11 05:53	20m	- / -	IU0TPA	-9 / -	2	Partial capture
07-11 05:51	20m	- / -	DG4YT	-16 / -	3	Partial capture
07-11 05:46	20m	- / -	DG4YT	-16 / -	2	Partial capture
07-11 05:34	20m	- / -	R6ZEJ	-13 / -	2	Partial capture
07-11 05:32	20m	- / -10	UR6II	-8 / -	5	✓ Closing fragment
07-11 05:30	20m	- / -6	RV3QI	-18 / -	2	✓ Closing fragment
07-11 05:29	20m	- / -7	DK9NP	+6 / -	3	✓ Closing fragment
07-11 05:25	20m	- / -17	PD4SN	-18 / -	2	Partial capture
07-11 05:19	20m	- / -16	DL6FR	-8 / -	4	Partial capture
07-11 05:11	20m	- / -16	RA6OB	-10 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
094930 -19 1719  KC2YYF IW5DLY 73
095200 -21 2043  KC2YYF EC2ASL IN93 (x2)
095400 -24 1978  KC2YYF HB9BEM JN37
100630 -13 2441  KC2YYF EA3HRE JN01 (x3)
220530 -16 1813  KC2YYF W8HW 73
230400 -19 1814  KC2YYF RT3K RR73
232830 -12 2164  KC2YYF UA9CMR MO06 (x2)
233630  -4  567  KC2YYF R8CKD MO06 (x2)
233745 -24 1813  CQ KC2YYF FN21
205330 -18 1342  KC2YYF S52TW JN76

40m

UTC    dB Audio  Message
042830 -12  534  KC2YYF Z34K -14
043330  -8  294  KC2YYF DG4BRT RR73
043730  -4  593  KC2YYF HB9DGK -05 (x2)
044430 -19 1983  KC2YYF OZ5ABO -10 (x2)
045900  -6 2257  KC2YYF DL6NDN +08 (x2)
052330  -3 2592  KC2YYF DL9HK -09 (x3)
053100 -12 1973  KC2YYF S59YL -14 (x2)
054800 -24 1444  KC2YYF DG1FBA -18
055630  -5  447  KC2YYF TM40TFR -02

80m

UTC    dB Audio  Message
033830  -9 2722  KC2YYF HB9MZI JN46 (x5)
035100  -4 1317  KC2YYF IS0BOZ -10 (x3)
035415  +6  359  KC2YYF EA5AQB -06 (x2)
025645 -10 1906  KC2YYF DO1YSF JO61 (x2)
025745  +7 2264  KC2YYF YO9IAB KN25
025800 -21 1132  CA6SNT KC2YYF FN21
025930 -21 1131  HI7S KC2YYF -14

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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