KF8N — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM17

Receiver-side FT8 activity involving KF8N, decoded by SO8OO in southeastern Poland. 81 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-07-23.

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 KF8N as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (80%), followed by 40 m (19%) and 20 m (1%). 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 -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

80m · 65 40m · 15 20m · 1

First attributed message: 2026-06-07
Last attributed message: 2026-07-23 01:23 UTC

Observed FT8 message patterns

Attributed sample: 81 messages
Active dates: 7 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -24 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 37, moderate (-15 to -9 dB) 39, strong (≥ -8 dB) 5.

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 KF8N in decoded directed-looking exchanges:

YN7DS · Nicaragua 9K2OD · Kuwait A71UN · Qatar A71XX · Qatar E75AA · Bosnia-Herzegovina LA7DMA · Norway MW7RHR · Wales OH2CLX · Finland R6FX · European Russia R6FY · European Russia RN6HK · European Russia SV5BYP · Dodecanese

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 KF8N

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: FM17 · 31 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,470 km (approx.)
Last such locator decoded: 2026-07-23 01:20 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	KF8N S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-01 01:54	40m	- / -	PE1NPS	-9 / -	3	Partial capture
08-01 01:53	40m	- / -5	A71UN	-11 / -	2	✓ Closing fragment
07-23 01:23	80m	- / -	DK5WL	-4 / -	3	Partial capture
07-23 01:22	80m	-19 / -4	EA3HMM	-9 / -	4	✓ Closing observed
07-23 01:22	80m	- / -	HG8LXL	+13 / -	4	Partial capture
07-23 01:20	80m	-13 / -	HI3A	- / -	2	✓ Closing fragment
07-23 01:03	40m	-3 / -	5N0YEN	- / -	2	Partial capture
07-22 02:05	80m	- / -	DK5WL	+2 / -	3	Partial capture
07-22 02:04	80m	-7 / -	W8TA	- / -	2	✓ Closing fragment
07-22 02:00	80m	- / -26	DK5WL	-3 / -	6	Partial capture
07-22 01:58	80m	-15 / 0	PI4DX	0 / -12	6	✓ Full exchange observed
07-22 01:56	80m	-9 / -13	LA9GX	+16 / -14	6	✓ Full exchange observed
07-22 01:54	80m	- / -	DK5WL	-4 / -	2	Partial capture
07-22 01:54	80m	- / -	F5PBG	+6 / -	4	Partial capture
07-22 01:54	80m	- / -	OM0RX	-20 / -	3	Partial capture
07-22 01:51	80m	-10 / -	KD9DWU	- / -11	2	✓ Closing fragment
07-22 01:49	80m	-12 / -10	SP3IOE	+25 / -15	11	✓ Full exchange observed
07-22 01:49	80m	- / -	DK5WL	+4 / -	2	Partial capture
07-22 00:52	40m	- / -	RN6HK	-9 / -	3	✓ Closing fragment
07-21 23:39	40m	- / -	UA4FKT	-6 / -	2	Partial capture
07-21 02:46	40m	- / -9	OH2CLX	-9 / -	3	✓ Closing fragment
07-21 01:45	40m	- / -	9A3AUH	-18 / -	4	Partial capture
07-21 01:43	40m	- / -14	DH2PC	0 / -	3	Partial capture
07-18 01:23	80m	- / -7	SP9TBT	+17 / -	6	✓ Closing fragment
07-18 01:22	80m	-12 / -	KB1O	- / -	2	Partial capture
07-18 01:19	80m	-14 / -6	HB9EFK	+18 / -12	4	✓ Full exchange observed
07-18 01:12	40m	- / -3	TM74TFR	-23 / -	2	Partial capture
07-18 01:01	40m	- / -13	UT5ZZ	-12 / -	2	✓ Closing fragment
07-18 00:59	40m	- / -	LA7DMA	-15 / -	2	✓ Closing fragment
07-16 02:53	80m	-24 / -21	F5RRS	-8 / -	6	✓ Closing observed
07-16 02:53	80m	-24 / -6	M0DRF	-10 / -19	3	Partial capture
07-16 02:52	80m	-24 / -18	DO9BAU	+4 / -14	4	✓ Full exchange observed
07-16 02:48	80m	- / -	9A4ZM	+6 / -	2	Partial capture
07-16 02:48	80m	- / -15	YO8RAW	+6 / -	2	Partial capture
07-16 02:47	80m	- / -	DK1MCS	+5 / -	5	Partial capture
07-16 02:46	80m	-23 / -12	HA7TM	+14 / -	3	✓ Closing observed
07-16 02:45	80m	-14 / -20	OK2BUZ	+8 / -16	7	✓ Full exchange observed
07-16 02:43	80m	-16 / -	ON3URT	- / -	2	Partial capture
07-16 02:42	80m	-19 / -9	HB9CXZ	+6 / -6	5	✓ Full exchange observed
07-16 02:31	40m	-22 / -	CN2DX	- / -	2	Partial capture
07-15 03:00	80m	- / -	DK5WL	-1 / -	3	Partial capture
07-15 02:58	80m	-13 / -10	OM1II	+9 / -14	4	Partial capture
07-15 02:54	80m	- / -15	IN3IZQ	-8 / -	4	✓ Closing fragment
07-15 02:51	80m	- / -3	DO9JTR	+11 / -	3	✓ Closing fragment
07-15 02:45	80m	-13 / -8	SM6FZO	-4 / -22	7	✓ Full exchange observed
07-15 02:44	80m	- / -	HB9HVG	-2 / -	2	Partial capture
07-15 02:43	80m	-14 / -9	DK5WL	0 / -24	4	Partial capture
07-15 02:43	80m	-15 / -16	DK7ZT	+12 / -16	4	✓ Full exchange observed
07-15 02:42	80m	-14 / -	<...>	- / -8	2	Partial capture
07-15 02:40	80m	- / -13	SV8JE	+18 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
233930  -4 1512  KF8N UA4FKT LO23
004045  +9  698  KF8N UA3DIB RR73
005245  -6  698  KF8N RN6HK LN14 (x3)
004215  -1  996  KF8N GI5RPG -06
005830  -6 2847  KF8N R6FX 73
010330  -3 2848  5N0YEN KF8N FM17 (x2)
015300 -11 1033  KF8N A71UN -05 (x2)
015400 -12 2434  KF8N PE1NPS JO22 (x3)
015730 -12  951  KF8N MW7RHR RR73

80m

UTC    dB Audio  Message
020730 -18  663  W4WWQ KF8N FM17
011900 -24  768  NP4PS KF8N FM17
012030 -10  768  HI3A KF8N FM17 (x2)
012215 +14 1202  KF8N HG8LXL KN06
012215  -7  329  KF8N EA3HMM JN00
012245 +14 1202  KF8N HG8LXL KN06
012245 -11  329  KF8N EA3HMM R-04
012300 -19  769  EA3HMM KF8N RR73
012315 +12 1202  KF8N HG8LXL KN06
012315 -10  329  KF8N EA3HMM 73
012315  -5 1603  KF8N DK5WL JN39
012345 +13 1202  KF8N HG8LXL KN06
012345  -5 1603  KF8N DK5WL JN39 (x2)

20m

UTC    dB Audio  Message
000030 -10  487  KF8N YN7DS RR73
000930  -3  919  KF8N 9K2YM -11

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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