MW0KJN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Wales Most frequent locator attributed to this token: IO81

Receiver-side FT8 activity involving MW0KJN, decoded by SO8OO in southeastern Poland. 439 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-07-27.

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 439 FT8 messages attributed to MW0KJN as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (58%), followed by 40 m (39%) and 80 m (2%). Most decodes (62%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.

Overview

439

Messages attributed

UTC dates decoded

105

Active 15-min windows

-17 dB

Estimated median S/N

Bands

80m · 7 40m · 171 20m · 255 10m · 6

First attributed message: 2026-06-09
Last attributed message: 2026-07-27 03:22 UTC

Observed FT8 message patterns

Attributed sample: 439 messages
Active dates: 15 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -24 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 240, moderate (-15 to -9 dB) 133, strong (≥ -8 dB) 66.

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 MW0KJN in decoded directed-looking exchanges:

F4HSB · France ×2 F5HNQ · France ×2 IK4LZH · Italy ×2 E75W · Bosnia-Herzegovina EA5JGR · Spain EA5OL · Spain F5JUS · France HB9HNU · Switzerland IZ4JMA · Italy IZ5SIH · Italy LZ5UY · Bulgaria 9A2L · Croatia

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 MW0KJN

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: IO81 · 325 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,746 km (approx.)
Last such locator decoded: 2026-07-27 03:22 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	MW0KJN S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-27 07:02	40m	- / -5	SP3VST	-9 / -	5	✓ Closing fragment
07-27 05:17	40m	- / +3	II3DRC	-8 / -	2	✓ Closing fragment
07-27 05:15	40m	- / -19	SP6U	-12 / -	2	✓ Closing fragment
07-27 05:13	40m	- / -19	SV2JAO	-14 / -	2	Partial capture
07-27 04:29	40m	- / -1	OM3WFH	-10 / -	2	✓ Closing fragment
07-27 03:37	40m	- / -6	YO9IAB	-1 / -	3	✓ Closing fragment
07-27 03:15	40m	- / -	DM8MH	-14 / -	2	Partial capture
07-27 02:58	40m	- / -2	YL3CU	-8 / -	2	✓ Closing fragment
07-27 02:43	40m	-13 / -	UR4SXA	- / -	2	Partial capture
07-27 02:12	40m	- / -15	UW5ESX	-13 / -	2	✓ Closing fragment
07-27 02:06	40m	- / -	RN3DN	-3 / -	5	✓ Closing fragment
07-27 01:27	40m	- / -3	R2ASV	-3 / -	2	✓ Closing fragment
07-27 01:16	40m	- / +3	PA2ES	-4 / -	2	✓ Closing fragment
07-27 00:46	40m	-12 / -	KB9JJF	- / -	2	Partial capture
07-27 00:27	40m	-12 / -	KE2NV	- / -	2	Partial capture
07-27 00:20	40m	- / -	DK3AE	-5 / -	2	Partial capture
07-26 23:51	40m	- / -	R2AL	+1 / -	4	Partial capture
07-26 23:39	40m	- / -	A71XX	-4 / -	2	Partial capture
07-26 23:34	40m	- / -	R2AL	0 / -	3	Partial capture
07-26 23:27	40m	- / -3	RV6AVU	-8 / -	3	Partial capture
07-26 23:19	40m	- / -4	RN6HK	0 / -	4	✓ Closing fragment
07-26 23:19	40m	- / 0	UA3IAP	-15 / -	2	Partial capture
07-26 23:12	40m	- / +5	LA3PT	-14 / -	2	✓ Closing fragment
07-26 23:01	40m	- / +5	DL7DL	-12 / -	2	✓ Closing fragment
07-26 22:55	40m	- / -15	9A3AUH	-12 / -	3	✓ Closing fragment
07-26 22:41	40m	- / -9	OH4TQ	-6 / -	2	✓ Closing fragment
07-26 22:25	40m	- / -	R2AL	+4 / -	3	Partial capture
07-26 22:20	40m	- / -	UA3IAP	-15 / -	7	Partial capture
07-26 22:07	40m	- / -8	UA1WFH	-18 / -	2	✓ Closing fragment
07-26 21:51	40m	- / -5	SP2OSP	-14 / -	2	✓ Closing fragment
07-26 21:47	40m	- / -	EB1LA	-17 / -	3	Partial capture
07-26 21:41	40m	- / -1	SP6ZLT	-10 / -	4	Partial capture
07-26 21:28	40m	- / -9	DL3HO	-8 / -	2	✓ Closing fragment
07-26 21:26	40m	- / -	F5RMK	-18 / -	2	✓ Closing fragment
07-26 21:24	40m	- / -10	SQ8LE	-18 / -	4	✓ Closing fragment
07-26 21:19	20m	-11 / -	KC2OUV	- / -	2	Partial capture
07-26 21:06	20m	- / -6	PY2GIG	-13 / -	3	Partial capture
07-26 20:51	20m	- / -8	DL9KM	-18 / -	2	Partial capture
07-26 20:05	20m	-10 / -	KZ4EK/W1	- / -	2	Partial capture
07-26 20:02	20m	- / -18	I1WUA	-7 / -	2	✓ Closing fragment
07-26 19:39	20m	-9 / -	SP2SGZ	- / -	3	✓ Closing fragment
07-26 19:34	20m	- / -	G6MTI	-10 / -	3	Partial capture
07-26 19:22	20m	- / -11	YO3SL	-10 / -	2	Partial capture
07-26 18:58	20m	- / -3	S52TW	+4 / -	2	✓ Closing fragment
07-26 18:51	20m	- / -	RD3FY	-8 / -	2	Partial capture
07-26 18:22	20m	- / -14	JA0JWQ	-20 / -	2	✓ Closing fragment
07-26 18:03	20m	-6 / -	ON5RJ	- / +2	2	✓ Closing fragment
07-26 17:52	20m	- / +3	DL5KSS	-6 / -	3	✓ Closing fragment
07-26 17:43	20m	- / -10	PE9JAN	-8 / -	3	✓ Closing fragment
07-26 17:09	20m	-8 / -	EA3IAP	-10 / -11	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
050445  -4  281  MW0KJN DM2AB JN49
051330 -14 1841  MW0KJN SV2JAO -19 (x2)
051530 -15 1226  MW0KJN SP6U -19 (x2)
051715  -8  356  MW0KJN II3DRC +03 (x2)
051815  +5  282  MW0KJN SP1MGM -02
055315  -8 2736  MW0KJN DM5KM RR73
060230  -6  282  MW0KJN SP1MGM -13
070245 -10  815  MW0KJN SP3VST -05 (x5)

20m

UTC    dB Audio  Message
200245  -6 2012  MW0KJN I1WUA RR73
200530 -13  319  KZ4EK/W1 MW0KJN IO81 (x2)
201215 -12  319  OH8CCS MW0KJN IO81
201445 -16  319  KP4AH MW0KJN 73
201545 -11  319  DL7VBJ MW0KJN IO81
205115 -19 1689  MW0KJN DL9KM JN68 (x2)
205900 -12  319  SM7OYP MW0KJN IO81
210615 -12  867  MW0KJN PY2GIG -06 (x3)
211815 -12  318  JH0AHI MW0KJN IO81
211915 -11  319  KC2OUV MW0KJN IO81 (x2)

10m

UTC    dB Audio  Message
102215 -13 2323  MW0KJN IZ5SIH RR73
102600  -3 1287  MW0KJN LZ5UY -07 (x3)
102800 -10 1245  MW0KJN HB9HNU +12 (x2)
103630 -12  896  MW0KJN DN9MDS -11 (x3)
104945  -4 1807  MW0KJN F4FSY -09
125130  +7 2799  MW0KJN DG0KS -01 (x4)
113645 -16 2408  MW0KJN LA6OCA -18

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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