F4MIZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: IN94

Receiver-side FT8 activity involving F4MIZ, decoded by SO8OO in southeastern Poland. 81 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-12.

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 F4MIZ as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (62%), followed by 40 m (31%) and 60 m (4%). Several six-hour UTC windows tied for the largest share (56%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 1 60m · 3 40m · 25 20m · 50 10m · 2

First attributed message: 2026-06-06
Last attributed message: 2026-09-12 21:40 UTC

Observed FT8 message patterns

Attributed sample: 81 messages
Active dates: 17 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -19 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 46.

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 F4MIZ in decoded directed-looking exchanges:

BG0HP · China ON4KBU · Belgium RX9WM · Asiatic Russia UR4QWW · Ukraine 7X5CY · Algeria HB9EFK · Switzerland

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 F4MIZ

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: IN94 · 50 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,816 km (approx.)
Last such locator decoded: 2026-09-12 21:39 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	F4MIZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 21:39	60m	-18 / +2	HB9EFK	+4 / -	4	✓ Closing observed
09-12 21:36	60m	-11 / -	7X5CY	-6 / +2	2	✓ Closing observed
09-10 23:49	40m	-14 / -	KE9END	- / -	2	Partial capture
09-10 23:47	40m	-5 / -	OA4ENG	- / -	3	Partial capture
09-10 23:46	40m	+3 / -	W9DHI	- / -	2	Partial capture
09-09 22:31	40m	-18 / -	UR4QWW	-21 / -5	3	✓ Closing observed
09-09 22:29	40m	- / -14	RX9WM	-4 / -	3	✓ Closing fragment
09-09 22:22	40m	-6 / -	N1WI	- / -15	3	Partial capture
09-07 21:37	40m	-10 / -	IH9/IT9JUI	- / -14	2	Partial capture
08-26 16:53	20m	-8 / -	YB4ECU	- / -	3	Partial capture
08-12 09:31	20m	- / -11	PD2WL	-10 / -	3	Partial capture
08-12 09:28	20m	- / -11	PD2WL	-12 / -	2	Partial capture
07-11 17:28	20m	-13 / -	UK7AL	- / -	2	Partial capture
07-11 17:17	20m	-4 / -	BG0HP	- / -25	4	✓ Closing fragment
07-09 08:47	20m	-18 / -18	ON4KBU	-18 / -	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
213615 -11  558  7X5CY F4MIZ R+02
213630  -6  558  F4MIZ 7X5CY RR73
213930 -17 2232  HB9EFK F4MIZ IN94
213945  +4 2233  F4MIZ HB9EFK +02 (x2)
214030 -20 2233  HB9EFK F4MIZ 73

40m

UTC    dB Audio  Message
222945  -2 1249  F4MIZ RX9WM R-14 (x2)
223030 -12 1178  DK4ET F4MIZ -04
223115 -21 1574  F4MIZ UR4QWW KN77
223200 -19 1574  UR4QWW F4MIZ -05 (x2)
234615  +1 2888  W9DHI F4MIZ IN94 (x2)
234715  -4 2433  OA4ENG F4MIZ IN94 (x3)
234945 -11 1814  KE9END F4MIZ IN94 (x2)
235145 -15 1729  HZ1TT F4MIZ IN94
223030 -11  641  PW8BR F4MIZ IN94

80m

UTC    dB Audio  Message
212930  +2 2367  F4MIZ IQ4JO JN63
213300 -21 2530  YO3HUI F4MIZ IN94

20m

UTC    dB Audio  Message
084800 -18 1063  ON4KBU F4MIZ RR73
171730  -5 2847  BG0HP F4MIZ IN94 (x4)
172800 -12 2291  UK7AL F4MIZ IN94 (x2)
092800 -11 3078  F4MIZ PD2WL -11 (x5)
165330  -3 1389  YB4ECU F4MIZ IN94 (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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