KU1CW — 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 KU1CW, decoded by SO8OO in southeastern Poland. 234 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-28.

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 234 FT8 messages attributed to KU1CW as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (83%), followed by 40 m (12%) and 80 m (6%). Most decodes (57%) fell within the six-hour window 00:00-06:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

234

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 13 40m · 27 20m · 194

First attributed message: 2026-06-08
Last attributed message: 2026-08-28 08:58 UTC

Observed FT8 message patterns

Attributed sample: 234 messages
Active dates: 23 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 81, strong (≥ -8 dB) 114.

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 KU1CW in decoded directed-looking exchanges:

7Q5MLV · Malawi ×2 A92AE · Bahrain ×2 4L7T · Georgia 9K2KU · Kuwait 9K2OK · Kuwait A41ZZ · Oman A45XO · Oman A61QQ · United Arab Emirates A91LD · Bahrain BA5AN · China DL3HBT · Fed. Rep. of Germany DL3OCF · Fed. Rep. of Germany

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 KU1CW

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 · 51 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,837 km (approx.)
Last such locator decoded: 2026-08-28 08:58 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	KU1CW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 05:24	40m	- / -	UA4FKT	-10 / -	4	Partial capture
09-10 05:45	80m	- / +1	ON8PR	-17 / -	2	✓ Closing fragment
09-10 05:43	80m	- / -4	DH1DAC	-10 / -	4	✓ Closing fragment
09-10 05:41	80m	- / -16	DH1NSP	+2 / -	4	✓ Closing fragment
08-26 05:30	20m	- / -	RC6OX	-4 / -	3	Partial capture
08-26 05:28	20m	- / -	R3KLJ	+6 / -	10	Partial capture
08-26 05:26	20m	-3 / -	HZ1TT	- / -	3	Partial capture
08-26 02:51	20m	- / -	R7WA	+7 / -	3	Partial capture
08-26 02:49	20m	-7 / -2	A92AE	-3 / 0	5	✓ Full exchange observed
08-24 06:09	40m	- / -11	OK1MXD	+6 / -	4	✓ Closing fragment
08-19 10:11	20m	- / -	PD3ED	-17 / -	2	Partial capture
08-19 00:51	40m	- / -	V26K	-2 / -	2	✓ Closing fragment
08-17 06:25	20m	- / -4	LZ2INP	+4 / -	4	✓ Closing fragment
08-17 06:18	20m	- / -8	DL3OCF	-8 / -	3	✓ Closing fragment
08-17 05:42	20m	-16 / -	Z34K	- / -1	2	Partial capture
08-17 05:38	20m	-15 / -	LX1ER	- / -	7	Partial capture
08-17 05:26	20m	- / -3	R2BQM	0 / -	5	Partial capture
08-17 05:26	20m	- / -	UA3PHB	-2 / -	3	Partial capture
08-17 05:18	20m	-16 / -	VK3JV	- / -7	2	Partial capture
08-17 05:16	20m	-14 / -	Z21ML	- / -16	4	✓ Closing fragment
08-17 05:16	20m	- / -	RV3QI	-8 / -	2	Partial capture
08-11 04:42	80m	- / -	DL6II	0 / -	7	Partial capture
08-10 11:29	20m	-18 / -	SQ4PKO	- / -18	2	✓ Closing fragment
08-10 11:28	20m	-18 / -	JF2IUC	- / -	2	✓ Closing fragment
08-10 11:22	20m	-18 / -	BA5AN	- / -9	2	✓ Closing fragment
08-10 11:21	20m	- / -	RW6MZ	-21 / -	3	Partial capture
08-10 11:16	20m	-17 / -15	A61QQ	-12 / -	2	✓ Closing observed
08-06 01:51	20m	-14 / -	LY5VD	- / -6	5	Partial capture
08-06 01:44	20m	-11 / -	OH0ERF	- / +10	5	✓ Closing fragment
08-06 01:35	40m	-10 / -	RW9WT	- / -13	2	✓ Closing fragment
08-06 01:34	40m	-9 / -	8Q7PR	- / -10	2	✓ Closing fragment
08-06 01:34	40m	- / -	RN6HK	-10 / -	5	Partial capture
08-06 01:32	40m	-8 / -	A65D	- / -3	3	✓ Closing fragment
08-03 02:40	40m	-24 / -	A71XX	- / -	2	Partial capture
08-03 02:23	80m	- / -	OK1WE	+20 / -	4	Partial capture
08-03 02:22	80m	-17 / -	ZP6TT	- / -	3	✓ Closing fragment
08-01 09:48	20m	- / -18	M0LAD	-8 / -	3	Partial capture
08-01 09:32	20m	-19 / -	SV9MBH	- / -	6	Partial capture
08-01 09:27	20m	- / -	M0LAD	-7 / -	2	Partial capture
08-01 09:27	20m	- / 0	DL1ABI	-13 / -	3	Partial capture
08-01 04:12	20m	-10 / -	9K2OK	- / -4	3	✓ Closing fragment
08-01 03:33	20m	- / -	UA6NT	-8 / -	2	Partial capture
08-01 03:32	20m	- / -	R6DVV	-21 / -	3	Partial capture
08-01 03:31	20m	-9 / -1	RV9WF	-9 / -	6	✓ Closing observed
08-01 03:30	20m	-8 / -	4L7T	- / -22	3	✓ Closing fragment
07-31 04:09	20m	- / -	R6LKG	+2 / -	2	Partial capture
07-31 04:08	20m	- / -	RA6FSV	-18 / -	4	Partial capture
07-31 04:07	20m	- / -	RZ6L	-20 / -	2	Partial capture
07-31 04:06	20m	-8 / -	SV8DUU	- / -21	2	✓ Closing fragment
07-31 04:06	20m	-5 / -	XE2V	- / -9	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
013700 -11 2028  KU1CW RN6HK LN14 (x2)
065230  -8 2208  KU1CW UT4PA KO20
040530 -19 1934  KU1CW SP0DF JO73
005115  -2 2754  KU1CW V26K +14 (x2)
060945  +6 2156  KU1CW OK1MXD JN89
061015 -11 1996  KU1CW PA1VW JO22
061015  +9 2156  KU1CW OK1MXD JN89 (x3)
052415  -7 1962  KU1CW UA4FKT LO23 (x4)

80m

UTC    dB Audio  Message
044330  +1 1785  KU1CW DL6II JO31 (x4)
054145  +1 2607  KU1CW DH1NSP JN59 (x4)
054345 -11  744  KU1CW DH1DAC JO31 (x3)
054515  +2  557  KU1CW HB3YFC JN37
054515  -8  744  KU1CW DH1DAC 73
054545 -16 2162  KU1CW ON8PR R+01 (x2)

20m

UTC    dB Audio  Message
052915  +6 1579  KU1CW R3KLJ LO01 (x2)
053015  -5 2554  KU1CW RC6OX KN88
053015  +5 1579  KU1CW R3KLJ LO01
053015 -11 1512  KU1CW R1YY KP69
053045  +0 1579  KU1CW R3KLJ LO01
053115  -4 2554  KU1CW RC6OX KN88
053115  +8 1579  KU1CW R3KLJ LO01 (x2)
053215  -3 2553  KU1CW RC6OX KN88
053215  +8 1579  KU1CW R3KLJ LO01 (x3)
101845  -6 1951  VK6OX KU1CW FN32
085800  -5 1914  SV9MBH KU1CW FN32

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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