9A5MTV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Croatia Most frequent locator attributed to this token: JN95

Receiver-side FT8 activity involving 9A5MTV, decoded by SO8OO in southeastern Poland. 463 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-17 and 2026-09-13.

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 463 FT8 messages attributed to 9A5MTV as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (57%), followed by 40 m (43%). Most decodes (84%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

463

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 197 20m · 266

First attributed message: 2026-06-17
Last attributed message: 2026-09-13 19:26 UTC

Observed FT8 message patterns

Attributed sample: 463 messages
Active dates: 38 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 102, moderate (-15 to -9 dB) 176, strong (≥ -8 dB) 185.

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 9A5MTV in decoded directed-looking exchanges:

PE1NPS · Netherlands ×3 F1PBZ · France ×2 LZ1ZF · Bulgaria ×2 5B4AMM · Cyprus ×2 IQ4JO · Italy ×2 R2AL · European Russia ×2 R5AV · European Russia ×2 TM2WWA · France ×2 GB2WWA · England ×2 IK4LZH · Italy ×2 DH1GKS · Fed. Rep. of Germany F6DJL · France

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 9A5MTV

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: JN95 · 189 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 536 km (approx.)
Last such locator decoded: 2026-09-13 19:26 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	9A5MTV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 19:51	40m	- / -6	TC2EYL	-7 / -	2	✓ Closing fragment
09-14 20:29	40m	- / -11	EA3FP	-6 / -	3	✓ Closing fragment
09-14 20:26	40m	- / -4	G7NUT	-12 / -	5	✓ Closing fragment
09-13 19:31	40m	- / -	IK1MJK/P	-14 / -	2	✓ Closing fragment
09-13 19:22	40m	-3 / +4	DL8TV	-1 / +3	3	✓ Full exchange observed
09-12 19:41	40m	- / -4	G4KRF	-9 / -	3	✓ Closing fragment
09-12 19:34	40m	-12 / -1	RA6OY	+9 / +1	4	✓ Full exchange observed
09-11 21:05	40m	- / +6	DG1ROL	0 / -	4	✓ Closing fragment
09-10 19:10	40m	- / -13	5B4AMM	+8 / -	2	✓ Closing fragment
09-04 20:44	40m	-12 / +6	DL3JHK	-5 / -6	5	✓ Full exchange observed
09-04 20:40	40m	- / -16	JA0RUG	-4 / -	3	✓ Closing fragment
09-04 20:36	40m	-7 / -18	UN7PPV	-14 / -14	3	✓ Full exchange observed
09-04 20:29	40m	- / -8	ON1DGN	-13 / -	3	✓ Closing fragment
09-04 20:29	40m	- / -15	R3MAR	-6 / -	7	Partial capture
09-04 20:05	40m	-3 / -	RI1FJL	- / -8	2	Partial capture
08-30 20:05	20m	- / -3	PA4AV	+8 / -	11	Partial capture
08-30 20:02	20m	- / 0	TA2CAX	-5 / -	3	✓ Closing fragment
08-30 19:24	20m	-10 / +4	R7OV	-18 / -	3	✓ Closing observed
08-30 19:21	20m	- / -6	EA2EDI	-16 / -	4	Partial capture
08-30 15:47	20m	- / -6	M9LCB	-2 / -	2	Partial capture
08-29 20:33	40m	- / -18	PD2XX	-6 / -	5	Partial capture
08-29 20:27	40m	-14 / 0	ON1AEY	-1 / -5	6	✓ Full exchange observed
08-29 20:20	40m	-15 / -	EA1IOK	-9 / -9	7	Partial capture
08-29 20:15	40m	-16 / +1	DF5JU	-10 / -11	6	✓ Full exchange observed
08-29 20:10	40m	-6 / -5	DK0RE	-3 / -1	5	✓ Full exchange observed
08-29 20:07	40m	-4 / -	UA3VVA	-8 / -11	5	✓ Closing observed
08-29 05:26	20m	- / -14	OA1F	-2 / -	2	✓ Closing fragment
08-29 04:53	20m	-18 / -	YO8RSL	- / -10	2	Partial capture
08-29 04:48	20m	-1 / -	ZL3TX	- / -	2	Partial capture
08-29 04:34	20m	- / -18	US5LD	-22 / -	2	Partial capture
08-26 19:53	20m	- / -5	R6HD	+7 / -	3	✓ Closing fragment
08-25 20:07	40m	-1 / -15	R6KX	+8 / +2	7	✓ Full exchange observed
08-25 20:06	40m	0 / -	PE1PEO	- / -21	5	Partial capture
08-25 20:05	40m	0 / -	<...>	- / -23	2	Partial capture
08-25 20:01	40m	-2 / -1	PD0IFI	+3 / +3	5	✓ Full exchange observed
08-25 20:01	40m	+2 / +1	DM2BM	+8 / -	4	✓ Full exchange observed
08-25 19:55	40m	-5 / -	SV1DKR	- / +4	2	✓ Closing fragment
08-25 19:49	40m	-2 / 0	DL6EL	-2 / +1	6	✓ Full exchange observed
08-25 19:49	40m	-5 / -	SA7BYQ	- / -9	2	✓ Closing fragment
08-25 19:45	40m	-6 / -	VJ6X	- / -24	4	✓ Closing fragment
08-25 19:43	40m	-3 / -12	SP6EFY	+6 / +7	4	✓ Full exchange observed
08-25 19:39	40m	- / -5	SP3SXU	-1 / -	3	✓ Closing fragment
08-25 19:34	40m	-1 / -	DL1HKL	-3 / +3	4	✓ Closing observed
08-25 19:31	40m	- / -16	RZ6AKF	+10 / -	2	Partial capture
08-25 19:31	40m	- / -	DB9JH	-3 / -	3	Partial capture
08-25 19:31	40m	-4 / 0	IK4LZH	+3 / -25	5	✓ Full exchange observed
08-25 19:27	40m	-4 / -	ON6CQ	- / -13	3	Partial capture
08-24 20:01	20m	- / -	G6MTI	-2 / -	2	Partial capture
08-23 19:41	20m	-8 / -5	TA1MB	-8 / -2	4	✓ Full exchange observed
08-23 19:39	20m	-6 / -	PA0ARR	- / -13	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
192600  -2 1283  CQ 9A5MTV JN95
193145 -16 1283  9A5MTV IK1MJK/P JN35 (x2)
193745  -7 1284  9A5MTV R5AV RR73
200330 -21 1446  9A5MTV TA2EE KM69
202630 -13  306  9A5MTV G7NUT IO91 (x5)
202930  -7  885  9A5MTV EA3FP JN11 (x3)
195100  -7 1733  9A5MTV TC2EYL R-06 (x2)

20m

UTC    dB Audio  Message
192630 -12 1708  CQ 9A5MTV JN95
200200  -5 2766  9A5MTV TA2CAX KM69 (x3)
200500  +6 1501  9A5MTV PA4AV JO21 (x11)

10m

UTC    dB Audio  Message
143115  -9  991  9A5MTV F6DJL R-16 (x4)
182615  -9 2149  9A5MTV LZ2EW KN13 (x3)
183245 -21 1544  9A5MTV TA3OER KN30 (x2)
183445  -7 1306  9A5MTV LZ1ZF KN22 (x2)
151930 -10 1643  9A5MTV RC6OU KN98 (x4)

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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