KC3UTO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FN20

Receiver-side FT8 activity involving KC3UTO, decoded by SO8OO in southeastern Poland. 79 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-14.

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 79 FT8 messages attributed to KC3UTO as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 20 m (43%) and 80 m (8%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 6 40m · 39 20m · 34

First attributed message: 2026-06-12
Last attributed message: 2026-09-14 03:51 UTC

Observed FT8 message patterns

Attributed sample: 79 messages
Active dates: 3 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -14 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 50.

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 KC3UTO in decoded directed-looking exchanges:

CT3MD · Madeira Islands DL5DQZ · Fed. Rep. of Germany EC3A · Spain F1PBZ · France HA7TM · Hungary MI7XHT · Northern Ireland R6LE · European Russia SP9UPH · Poland TA2EE · Asiatic Turkey W5MYR · United States DL1UDO · Fed. Rep. of Germany EA1IOK · Spain

Most frequent locator attributed to KC3UTO

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: FN20 · 31 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,111 km (approx.)
Last such locator decoded: 2026-09-13 01:39 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	KC3UTO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 03:38	80m	- / -24	SV8JE	+19 / -	5	✓ Closing fragment
09-19 03:14	40m	- / -	UA4FKT	+5 / -	2	Partial capture
09-19 03:11	40m	- / -18	SP9UPH	-12 / -	2	✓ Closing fragment
09-19 03:10	40m	- / -14	GM6URC	-13 / -	4	Partial capture
09-14 03:49	80m	-18 / -	K3ATA	- / -	2	✓ Closing fragment
09-14 03:48	80m	- / -21	F5RRS	-3 / -	5	✓ Closing fragment
09-14 03:47	80m	- / -13	SQ9DJQ	+3 / -	5	Partial capture
09-14 03:46	80m	-19 / -15	MI0OBC	-12 / -17	3	Partial capture
09-14 03:45	80m	- / -22	DL1UDO	-10 / -	4	✓ Closing fragment
09-14 03:45	80m	- / -	DL6ET	-19 / -	3	Partial capture
09-14 03:44	80m	- / -2	ON8DM	+4 / -	3	✓ Closing fragment
09-14 03:42	80m	-24 / -6	EA1IOK	-18 / -	4	✓ Closing observed
09-13 01:35	40m	-8 / -	W5MYR	- / -	3	✓ Closing fragment
09-13 01:29	40m	-8 / -	DL7UKM	- / -19	2	Partial capture
09-13 01:28	40m	- / -19	UR5QW	-4 / -	4	Partial capture
09-13 01:28	40m	-10 / -	KC9RXM	- / +4	2	Partial capture
09-13 01:25	40m	-6 / -	TA2EE	-9 / -24	5	✓ Closing observed
09-13 01:23	40m	-4 / -	F1PBZ	- / -17	2	✓ Closing fragment
09-13 01:21	40m	-4 / -	SP5MIG	- / -20	2	Partial capture
09-13 01:20	40m	-6 / -	R6LE	-20 / -24	3	✓ Closing observed
09-13 01:19	40m	-6 / -	WB3FME	- / -1	2	Partial capture
09-13 01:17	40m	-5 / -	HA7TM	- / +2	3	✓ Closing fragment
09-13 01:15	40m	-8 / -	OE8DDX	- / -	2	Partial capture
08-21 02:19	40m	- / -15	EC3A	-6 / -	2	Partial capture
08-21 01:50	40m	- / -13	F4DIA	-4 / -	5	Partial capture
08-20 20:22	20m	- / -	EA5ET	-9 / -	3	Partial capture
08-20 20:19	20m	- / -	DF4WC	+12 / -	3	Partial capture
08-20 20:19	20m	- / -	F4HQB	-8 / -	2	Partial capture
08-20 03:27	40m	- / -20	CT3MD	-4 / -	4	✓ Closing fragment
08-20 03:15	40m	- / -18	MI7XHT	-19 / -	3	✓ Closing fragment
08-20 03:15	40m	- / -14	PD0RCQ	-11 / -	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
034830  +4 2631  KC3UTO SQ9DJQ -13
034830  +0 1944  KC3UTO F5RRS JN36
034900  +1 2631  KC3UTO SQ9DJQ -13
034900  +0 1944  KC3UTO F5RRS JN36
034915 -17 2272  K3ATA KC3UTO RRR
034930  -4 1943  KC3UTO F5RRS JN36 (x3)
035045 -18 2271  K3ATA KC3UTO 73
035115 -16 2272  WA1KXV KC3UTO -19
033845 +19  561  KC3UTO SV8JE KM08 (x5)

40m

UTC    dB Audio  Message
014315 -13 2472  R6DOB/M KC3UTO R-24
014500 -13  737  KC3UTO EH1SDC -05
031230  +1 2405  KC3UTO R6FY LN05
033630  -2 1687  KC3UTO SV1DKR KM18
033730  -9 2307  KC3UTO EA5JHD -15
025930  -6  641  KC3UTO TF3VS R-17
030100 -20 1541  KC3UTO F4HQB JO10
031015 -15 1812  KC3UTO GM6URC -14 (x2)
031115 -13  733  KC3UTO SP9UPH R-18
031115 -11 1813  KC3UTO GM6URC -14
031145 -11  733  KC3UTO SP9UPH 73
031145 -13 1812  KC3UTO GM6URC -14
031445  +2  734  KC3UTO UA4FKT LO23 (x2)

20m

UTC    dB Audio  Message
201945  -8 1579  KC3UTO F4HQB JO10
201945 +11 2842  KC3UTO DF4WC JN49
202015  -8 1579  KC3UTO F4HQB JO10
202015 +13 2842  KC3UTO DF4WC JN49 (x2)
202245  -8 2842  KC3UTO EA5ET IM99 (x3)

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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