KU4CG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM18

Receiver-side FT8 activity involving KU4CG, decoded by SO8OO in southeastern Poland. 81 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-30 and 2026-09-08.

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 81 FT8 messages attributed to KU4CG as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (74%), followed by 80 m (26%). Several six-hour UTC windows tied for the largest share (96%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 21 20m · 60

First attributed message: 2026-06-30
Last attributed message: 2026-09-08 02:26 UTC

Observed FT8 message patterns

Attributed sample: 81 messages
Active dates: 9 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -23 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 33.

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 KU4CG in decoded directed-looking exchanges:

DA0WWA · Fed. Rep. of Germany ×2 EA1FEP · Spain G3TKT · England GB2WWA · England II2WWA · Italy II3WWA · Italy N9W · United States OM8GT · Slovak Republic R2DN · European Russia R6FX · European Russia S51RU · Slovenia UA3SAO · European Russia

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 KU4CG

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: FM18 · 41 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,390 km (approx.)
Last such locator decoded: 2026-09-08 02:26 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	KU4CG S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-09 03:15	80m	- / -	PA3KUS	-5 / -	2	Partial capture
09-09 03:13	80m	- / -3	PI4DX	-2 / -	2	✓ Closing fragment
09-08 02:25	80m	-22 / +4	OV6ZM	-5 / -20	7	Partial capture
09-08 02:24	80m	- / -	RA6ZS	-3 / -	4	Partial capture
09-08 02:24	80m	- / -11	YO4NF	+6 / -	2	✓ Closing fragment
09-08 02:21	80m	-19 / -	DL3MIB	- / -13	3	Partial capture
09-08 02:15	80m	- / -	DL3MIB	+3 / -	6	Partial capture
09-08 02:14	80m	- / -16	9A5E	+8 / -	4	✓ Closing fragment
09-07 01:53	80m	-22 / -	TI2SD	- / +3	2	Partial capture
09-05 23:55	80m	-23 / -	OZ7KJ/P	- / -5	2	Partial capture
09-01 04:52	80m	- / -	DL3MIB	+7 / -	3	Partial capture
09-01 04:45	80m	- / -	EA1IOK	-15 / -	2	✓ Closing fragment
08-29 02:23	80m	-18 / -	WB6AGE	- / -	2	Partial capture
08-29 01:53	80m	-24 / -16	F1PBZ	+3 / -19	3	✓ Full exchange observed
08-29 01:53	80m	- / -	OK1UOZ	+10 / -	10	Partial capture
08-29 01:52	80m	- / -	PA3KUS	0 / -	6	Partial capture
08-29 01:51	80m	- / -16	F4GTB	+5 / -	3	✓ Closing fragment
08-26 01:12	20m	+4 / -	7Z1DS	- / -	2	Partial capture
08-26 01:08	20m	0 / -	UN7BI	- / -	3	Partial capture
08-26 01:04	20m	-10 / -	VU2SW	- / -	5	Partial capture
08-21 02:00	80m	- / -10	DL8MKG	+19 / -	3	Partial capture
08-21 01:53	20m	- / -	SV5BYP	-6 / -	5	Partial capture
08-17 02:34	80m	- / -19	DL1RWN	+18 / -	4	✓ Closing fragment
08-17 02:22	80m	- / -22	OH1MLZ	+8 / -	3	✓ Closing fragment
08-11 03:24	80m	- / -	IW3RUA	-5 / -	4	Partial capture
08-11 03:19	80m	- / -15	DL1STG	+3 / -	5	Partial capture
08-11 03:18	80m	- / -	DK7UY	-6 / -	4	Partial capture
07-25 01:52	80m	-23 / -15	SV8JE	+14 / +4	7	✓ Full exchange observed
07-25 01:50	80m	-20 / -	SP6JIU	- / -	2	Partial capture
07-25 01:33	80m	- / -17	HB9EFK	+12 / -	2	✓ Closing fragment
07-25 01:29	80m	- / -16	IQ4JO	+19 / -	3	✓ Closing fragment
07-15 22:36	20m	- / -14	SV5BYP	-19 / -	5	Partial capture
07-15 19:56	20m	- / -	RN3ZBX	-18 / -	2	Partial capture
07-15 19:37	20m	- / -	DL1R	-2 / -	7	Partial capture
07-14 04:52	40m	- / -11	DC6MY	-7 / -	4	✓ Closing fragment
07-14 04:47	40m	- / -12	OE3DXA	-3 / -	3	✓ Closing fragment
07-10 03:12	40m	- / -8	IC8TEM	-8 / -	2	Partial capture
07-10 03:11	40m	- / -17	DL1USB	-8 / -	3	✓ Closing fragment
07-09 04:33	20m	- / -	TA2M	-8 / -	2	Partial capture
07-09 04:29	20m	- / -7	EA5TE	-11 / -	2	Partial capture
07-05 22:37	20m	- / -9	II2WWA	-16 / -	2	✓ Closing fragment
07-03 04:40	40m	- / -13	OE9DAI	+3 / -	2	✓ Closing fragment
07-03 04:35	40m	- / -	OE9DAI	0 / -	4	Partial capture
07-03 04:02	40m	- / +2	DJ0MAB	-13 / -	2	Partial capture
07-03 03:58	40m	- / -	DJ0MAB	-1 / -	4	Partial capture
07-03 02:48	20m	-8 / -	R2DN	- / -11	2	✓ Closing fragment
07-03 02:44	20m	-8 / -	II9WWA	- / -21	9	Partial capture
07-03 02:42	20m	-7 / -4	DA0WWA	-6 / -10	5	✓ Full exchange observed
07-03 02:39	20m	-10 / -	II3WWA	-9 / -6	3	✓ Closing observed
07-03 02:23	40m	- / -1	OH5WWA	-16 / -	7	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
022500  +6 1034  KU4CG YO4NF RR73
022500  +0  591  KU4CG RA6ZS KN98
022545 -24 1034  OV6ZM KU4CG FM18
022600  -1  591  KU4CG RA6ZS KN98
022615 -19 1034  OV6ZM KU4CG FM18
022630  +0  591  KU4CG RA6ZS KN98
022630 -11 1254  KU4CG OV6ZM +04
022645 -24 1033  OV6ZM KU4CG R-20
022700  -4 1254  KU4CG OV6ZM +04 (x3)
031330  -4  979  KU4CG PI4DX -03 (x2)
031530  -8  439  KU4CG PA3KUS JO21 (x2)

20m

UTC    dB Audio  Message
015345 -11 1684  KU4CG SV5BYP KM46 (x5)
010400 -11 1299  VU2SW KU4CG FM18 (x5)
010845  +0 2896  UN7BI KU4CG FM18 (x3)
011200  +8 2896  7Z1DS KU4CG FM18 (x2)

40m

UTC    dB Audio  Message
031100 -11 1869  KU4CG DL1USB JO60 (x3)
031230  -8  520  KU4CG IC8TEM JN70 (x2)
045545  +2 2144  KU4CG DL6EV JO60
043530 -16  232  KU4CG DL3OCF -12
044730  +1  997  KU4CG OE3DXA -12 (x3)
045130 -24 1972  KU4CG DG1KDD +08
045200  -6  989  KU4CG DC6MY JN58 (x4)

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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