9A3NM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Croatia Most frequent locator attributed to this token: JN85

Receiver-side FT8 activity involving 9A3NM, decoded by SO8OO in southeastern Poland. 137 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-07-17 and 2026-09-14.

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 137 FT8 messages attributed to 9A3NM as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (53%), followed by 20 m (19%) and 40 m (18%). Several six-hour UTC windows tied for the largest share (79%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +8 dB.

Overview

137

Messages attributed

UTC dates decoded

Active 15-min windows

+8 dB

Estimated median S/N

Bands

160m · 13 80m · 73 40m · 25 20m · 26

First attributed message: 2026-07-17
Last attributed message: 2026-09-14 16:28 UTC

Observed FT8 message patterns

Attributed sample: 137 messages
Active dates: 10 UTC dates
Estimated median S/N: +8 dB
Estimated 10th-90th percentile: -8 to +17 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 124.

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 9A3NM in decoded directed-looking exchanges:

KH8WW · American Samoa ×2 NQ9N · United States ×2 RI1FJL · Franz Josef Land 3A2MW · Monaco AD9GE · United States K1BIF · United States KA1MXL · United States KR4IRP · United States KZ4X · United States KP2B · US Virgin Islands AA3B · United States AA6KJ · United States

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 9A3NM

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: JN85 · 90 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 610 km (approx.)
Last such locator decoded: 2026-09-14 16:26 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	9A3NM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-14 16:28	80m	- / -	UA4FKT	+9 / -	3	Partial capture
09-14 16:25	80m	+5 / -	KH8WW	- / -11	6	✓ Closing fragment
09-13 18:08	40m	+10 / -	KH8WW	- / 0	12	✓ Closing fragment
08-31 20:13	20m	-10 / -	RV9CX/0	- / -	2	Partial capture
08-31 08:12	20m	- / -	F5PBG	+8 / -	4	Partial capture
08-30 23:13	20m	-1 / -	3A2MW	- / -	5	Partial capture
08-29 22:52	160m	+13 / -	RI1FJL	- / -11	13	✓ Closing fragment
08-29 01:22	20m	-9 / -	KR4IRP	- / -3	3	✓ Closing fragment
08-29 01:21	20m	- / -16	YO4NF	-12 / -	2	Partial capture
08-29 01:19	20m	-11 / -	K1BIF	- / +7	3	✓ Closing fragment
08-29 01:15	20m	-9 / -	KZ4X	- / -20	4	✓ Closing fragment
08-29 01:12	20m	-5 / -	KA1MXL	- / +5	3	✓ Closing fragment
08-29 01:06	80m	+15 / -	YV4KWT	- / -12	3	✓ Closing fragment
08-29 01:05	80m	+18 / +1	AA3B	-22 / -10	5	✓ Full exchange observed
08-29 01:02	80m	+14 / -	W8LRL	-23 / -14	5	✓ Closing observed
08-29 01:01	80m	+17 / -	KA1ERL	- / -24	4	✓ Closing fragment
08-29 01:01	80m	- / -	R2AL	+6 / -	3	Partial capture
08-29 01:01	80m	- / -2	R2EN	+4 / -	5	Partial capture
08-29 01:00	80m	+17 / -2	K1SFA	-10 / -2	5	✓ Full exchange observed
08-29 00:59	80m	+17 / +3	AA3B	-24 / -	4	Partial capture
08-28 02:52	80m	+14 / -	PP5JR	- / -18	3	✓ Closing fragment
08-28 02:50	80m	- / +9	DK7ZT	+8 / -	8	Partial capture
08-28 02:50	80m	+12 / -8	ES2AJ	+11 / -	5	✓ Full exchange observed
08-28 02:49	80m	+17 / -2	NQ9N	-19 / -13	5	✓ Full exchange observed
08-28 02:47	80m	- / -	EA1IOK	-15 / -	3	Partial capture
08-28 02:47	80m	+18 / -11	R2EA/P	-14 / -6	4	✓ Full exchange observed
08-28 02:46	80m	+15 / -12	AA6KJ	-15 / -11	6	✓ Full exchange observed
08-28 02:32	20m	-3 / -	K0BLT	- / -	3	Partial capture
08-26 23:15	20m	-9 / -	AD9GE	-11 / -	2	✓ Closing observed
08-26 23:13	20m	- / -15	YO4NF	+8 / -	2	Partial capture
08-25 23:11	80m	+5 / -	RI1FJL	- / -20	36	Partial capture
08-24 02:01	20m	- / +2	3A2MW	-14 / -	2	✓ Closing fragment
08-24 01:57	40m	0 / +7	KP2B	-18 / -2	6	✓ Full exchange observed
07-23 12:38	10m	- / -	DO4ZH	-22 / -	2	Partial capture
07-17 17:25	40m	+7 / -	T22TT	- / -17	3	Partial capture
07-17 16:56	40m	+15 / -	T22TT	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
010530 +16 2479  AA3B 9A3NM R-10
010545 -24 1296  9A3NM AA3B RR73
010600 +17 2479  AA3B 9A3NM 73
010630 +14 2479  YV4KWT 9A3NM JN85 (x3)
162515  +9  964  KH8WW 9A3NM JN85 (x6)
162830  +7  963  9A3NM UA4FKT LO23 (x3)

40m

UTC    dB Audio  Message
015915  +0 1288  KP2B 9A3NM 73
015930 -18 1906  9A3NM DK7ZT +11
020030 -18 2521  9A3NM R2EA/P +02
180845 +14 1828  KH8WW 9A3NM JN85 (x12)

20m

UTC    dB Audio  Message
012230  -7  980  KR4IRP 9A3NM JN85 (x3)
231315  +6 2090  3A2MW 9A3NM JN85 (x5)
081215  +4 1783  9A3NM R2AL KO85
081215 +15 2879  9A3NM F5PBG IN78 (x4)
201345 -11 1502  RV9CX/0 9A3NM JN85 (x2)

160m

UTC    dB Audio  Message
225215 +16  572  RI1FJL 9A3NM 73 (x13)

10m

UTC    dB Audio  Message
123815 -23 2169  9A3NM DO4ZH JO64 (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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