MU9MNA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Guernsey Most frequent locator attributed to this token: IN89

Receiver-side FT8 activity involving MU9MNA, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-08-25.

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 8 FT8 messages attributed to MU9MNA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (63%), followed by 40 m (38%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 3 20m · 5

First attributed message: 2026-06-13
Last attributed message: 2026-08-25 20:17 UTC

Observed FT8 message patterns

Attributed sample: 8 messages
Active dates: 2 UTC dates
Estimated median S/N: -11 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 2.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with MU9MNA in decoded directed-looking exchanges:

DO7DE · Fed. Rep. of Germany I1RJP · Italy C31CT · Andorra OK5AG/P · Czech Republic

Most frequent locator attributed to MU9MNA

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: IN89 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,775 km (approx.)
Last such locator decoded: 2026-08-25 20:16 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	MU9MNA S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-25 20:18	40m	- / -	UA4FKT	+8 / -	2	Partial capture
08-25 20:16	40m	-8 / -	C31CT	- / +5	3	✓ Closing fragment
07-24 13:19	10m	- / -	DN9EIS	-4 / -	3	Partial capture
07-24 13:09	10m	- / +8	DJ0MAB	-4 / -	2	Partial capture
07-24 13:03	10m	- / -11	DN9EIS	-1 / -	7	Partial capture
07-24 13:02	10m	- / -	DO1DX	+2 / -	3	Partial capture
07-24 12:47	10m	- / -9	I1RJP	-12 / -	4	Partial capture
07-24 12:46	10m	- / 0	DO7DE	-4 / -	3	✓ Closing fragment
07-24 03:33	40m	- / -	I1RJP	-8 / -	3	Partial capture
07-22 20:24	40m	- / -	I1RJP	-10 / -	4	Partial capture
07-21 19:46	80m	- / -	DO5WG	+1 / -	5	Partial capture
07-21 19:44	80m	- / -1	F5PBG	-12 / -	2	Partial capture
07-18 21:20	40m	- / -	9A3K	+8 / -	2	Partial capture
07-16 19:53	40m	- / -17	DL5DQZ	-10 / -	13	Partial capture
07-15 20:21	40m	- / -	DL1API	-1 / -	6	Partial capture
07-15 20:21	40m	- / -	R3PMI	-18 / -	2	Partial capture
07-15 20:17	40m	- / -	RX3DTN	-15 / -	5	Partial capture
07-09 15:53	40m	- / -11	OK5AG/P	-1 / -	5	✓ Closing fragment
07-09 09:34	20m	- / -	F4HSB	-22 / -	2	Partial capture
07-04 19:02	20m	- / -18	I1RJP	-2 / -	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
212045  +9 2398  MU9MNA 9A3K JN65 (x2)
202415 -10  250  MU9MNA I1RJP JN45 (x7)
201645  -8  487  C31CT MU9MNA IN89 (x3)
201800  -2 1518  MU9MNA UW5KW KO30
201800  +8  487  MU9MNA UA4FKT LO23 (x2)

10m

UTC    dB Audio  Message
130315  +1  476  MU9MNA DO1DX JO30
130315  -7  861  MU9MNA DJ0MAB JN49
130345  +1  476  MU9MNA DO1DX JO30
130345  -4  860  MU9MNA DN9EIS JN48 (x7)
130915  -3  688  MU9MNA DJ0MAB JN49 (x2)
131915  -5  689  MU9MNA DN9EIS JN48 (x3)

80m

UTC    dB Audio  Message
194415 -14 1355  MU9MNA F5PBG IN78 (x2)
194615  +1  551  MU9MNA DO5WG JO40 (x5)

20m

UTC    dB Audio  Message
190200  -6  269  MU9MNA I1RJP JN45 (x4)
093315 -18 1792  MU9MNA TM33TDF -02
093445 -22 1659  MU9MNA F4HSB JN37 (x2)
094045 -21 2130  MU9MNA PD0OKP JO32
211300  -9 2837  MU9MNA UB4HVA LO53

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