K4NTO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM16

Receiver-side FT8 activity involving K4NTO, decoded by SO8OO in southeastern Poland. 24 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-09-17.

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 24 FT8 messages attributed to K4NTO as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (92%), followed by 20 m (8%). Several six-hour UTC windows tied for the largest share (96%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (88%); the estimated median was -20 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-20 dB

Estimated median S/N

Bands

80m · 22 20m · 2

First attributed message: 2026-06-20
Last attributed message: 2026-09-17 03:29 UTC

Observed FT8 message patterns

Attributed sample: 24 messages
Active dates: 5 UTC dates
Estimated median S/N: -20 dB
Estimated 10th-90th percentile: -24 to -15 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 3, 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 K4NTO in decoded directed-looking exchanges:

HB9TIH · Switzerland F6DZU · France OJ0YL · Market Reef OK7GU · Czech Republic SM4IED · Sweden 9A5E · Croatia AF4HS · United States DO1ID · Fed. Rep. of Germany K8BL · United States KC5GR · United States KE8DIE · United States N1KSY · United States

Most frequent locator attributed to K4NTO

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: FM16 · 13 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,551 km (approx.)
Last such locator decoded: 2026-09-17 03:29 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	K4NTO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 03:28	80m	-22 / -	W6I	- / -	3	Partial capture
09-17 03:20	80m	-22 / -18	DO1ID	+7 / -8	6	✓ Full exchange observed
09-17 03:20	80m	-22 / -	W6M	- / -	4	Partial capture
09-05 03:32	80m	- / -1	9A5E	+10 / -	2	✓ Closing fragment
09-05 03:32	80m	- / -10	DO1ID	+12 / -	2	Partial capture
08-26 03:51	60m	- / -6	SM4IED	+2 / -	2	✓ Closing fragment
08-26 03:47	60m	- / -7	OK7GU	-6 / -	2	✓ Closing fragment
08-26 03:40	80m	- / -19	SP7XIF	+10 / -	12	Partial capture
08-26 03:40	80m	- / -24	SN40KZE	+4 / -	2	✓ Closing fragment
08-25 03:58	40m	- / -10	HB9IRO	+2 / -	2	Partial capture
08-25 03:56	40m	- / -14	PC2J	-11 / -	2	Partial capture
08-25 03:53	40m	- / -	HB9IRO	+4 / -	3	Partial capture
08-22 01:40	20m	- / -5	HB9TIH	-9 / -	6	✓ Closing fragment
08-20 02:05	60m	- / -13	OJ0YL	+4 / -	3	✓ Closing fragment
08-01 02:56	80m	- / -	DO1ID	+18 / -	4	Partial capture
08-01 02:55	80m	-20 / -	K8BL	- / -	2	✓ Closing fragment
08-01 02:53	80m	-18 / -	KE8DIE	- / +5	2	✓ Closing fragment
08-01 02:51	80m	-16 / -	AF4HS	-22 / +9	6	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
051530 -10  761  K4NTO F6DZU 73
051600 -10  555  K4NTO EC5JC JM08
035345  +3 1774  K4NTO HB9IRO JN46 (x3)
035645 -14 1773  K4NTO PC2J JO22 (x2)
035815  -1 1772  K4NTO HB9IRO JN46 (x2)
042300  -5 1340  K4NTO HB0/HB9HDI -08

80m

UTC    dB Audio  Message
033230 +12  383  K4NTO DO1ID -10
033230 +14 2134  K4NTO 9A5E RR73
032000 -20 1332  W6M K4NTO FM16 (x2)
032045  +6  382  K4NTO DO1ID -18
032100 -24 1332  W6M K4NTO FM16
032130 -24 1332  DO1ID K4NTO R-08 (x2)
032215 +12  382  K4NTO DO1ID RR73
032230 -24 1332  W6M K4NTO FM16
032345  +2  382  K4NTO DO1ID -14 (x2)
032800 -24 2027  W6I K4NTO FM16 (x3)

20m

UTC    dB Audio  Message
013730 -19 2182  K4NTO IW3BYL JN56
014030 -10 1923  K4NTO HB9TIH JN36 (x6)
160330 -22 1225  LX7I K4NTO FM16

60m

UTC    dB Audio  Message
020530  +7 1256  K4NTO OJ0YL -13 (x3)
034700  -8 1232  K4NTO OK7GU -07 (x2)
035100  +2 1555  K4NTO SM4IED -06 (x2)

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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