DO9MAT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN58

Receiver-side FT8 activity involving DO9MAT, decoded by SO8OO in southeastern Poland. 417 FT8 messages attributed to this token as transmitter, on 80m, 10m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-07-05.

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 417 FT8 messages attributed to DO9MAT as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (64%), followed by 80 m (36%). Most decodes (65%) 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 -16 dB.

Overview

417

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 152 10m · 265

First attributed message: 2026-06-11
Last attributed message: 2026-07-05 09:17 UTC

Observed FT8 message patterns

Attributed sample: 417 messages
Active dates: 15 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -24 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 234, moderate (-15 to -9 dB) 165, strong (≥ -8 dB) 18.

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 DO9MAT in decoded directed-looking exchanges:

DD7EE · Fed. Rep. of Germany ×2 EA8UP · Canary Islands ×2 CE2SV · Chile DL6EL · Fed. Rep. of Germany DN9TB · Fed. Rep. of Germany E75W · Bosnia-Herzegovina EA1AA · Spain ER3CT · Moldova F5RMK · France G8KHF · England HA5LB · Hungary IQ7PU · Italy

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 DO9MAT

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: JN58 · 276 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 799 km (approx.)
Last such locator decoded: 2026-07-05 09:16 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	DO9MAT S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-30 20:43	10m	- / +5	EA8UP	-16 / -	2	✓ Closing fragment
07-05 09:16	10m	-17 / -	YT2FA	- / -9	3	✓ Closing fragment
07-05 09:13	10m	-16 / -	UT4VL	- / -9	4	Partial capture
07-05 09:10	10m	-14 / -	OZ0JX	- / -	4	✓ Closing fragment
07-05 09:04	10m	-16 / -	LZ1JZ	- / -10	10	✓ Closing fragment
07-05 09:02	10m	-13 / -	UX2SB	- / -9	3	✓ Closing fragment
07-05 09:01	10m	-11 / -	DN9TB	- / -16	3	✓ Closing fragment
07-05 08:59	10m	-11 / -	TA3ZZ	- / -8	3	✓ Closing fragment
07-05 08:56	10m	-15 / -	LZ1JZ	- / -	6	Partial capture
07-05 08:53	10m	-13 / -	EW8ABG	- / -	4	Partial capture
07-05 08:51	10m	-14 / -16	RQ7R	-18 / -15	3	Partial capture
07-04 00:33	80m	-23 / -	MM0HVU	- / -	3	Partial capture
07-04 00:32	80m	-18 / -3	9A4ZM	0 / -7	5	✓ Full exchange observed
07-04 00:31	80m	-19 / -4	TM2WWA	-7 / -	4	✓ Closing observed
07-04 00:29	80m	-24 / -18	TM8WWA	-12 / -	3	✓ Closing observed
07-04 00:26	80m	-24 / -	IQ4JO	- / -	5	Partial capture
07-04 00:23	80m	-22 / -13	MM0KQC	+1 / -6	2	Partial capture
07-04 00:22	80m	-20 / -20	IK4LZH	+7 / -7	9	✓ Full exchange observed
07-01 21:33	80m	- / -13	II3WWA	-10 / -	2	Partial capture
07-01 21:29	80m	- / -17	SN4WWA	-16 / -	2	✓ Closing fragment
06-28 21:12	10m	- / -3	M0BEW	-3 / -	2	✓ Closing fragment
06-28 20:32	10m	- / -2	EA1AA	-6 / -	2	✓ Closing fragment
06-28 20:16	10m	- / -6	PV8AJ	-14 / -	2	Partial capture
06-28 20:09	10m	- / -9	DL6EL	+2 / -	2	✓ Closing fragment
06-28 20:09	10m	- / +8	EA8UP	-16 / -	4	✓ Closing fragment
06-28 20:01	10m	- / +1	IQ7PU	-10 / -	2	✓ Closing fragment
06-28 18:34	10m	- / -16	LZ1ZF	-10 / -	2	✓ Closing fragment
06-25 21:31	80m	-17 / -	IK0HBN	- / -	5	Partial capture
06-25 21:30	80m	-21 / -19	DD7EE	-4 / -3	5	✓ Full exchange observed
06-25 21:29	80m	-16 / -	DL9KM	-12 / -10	3	✓ Closing observed
06-25 21:22	80m	-16 / -	OO0O	- / -	6	Partial capture
06-25 21:18	80m	- / -17	ON3BLC	-24 / -	2	✓ Closing fragment
06-25 21:16	80m	- / -11	SP6JIU	+28 / -	2	✓ Closing fragment
06-25 21:06	10m	- / -16	CE2SV	+2 / -	2	✓ Closing fragment
06-25 18:50	10m	-14 / -	OZ9WRH	-4 / -	8	✓ Closing observed
06-25 18:45	10m	-16 / -	SP3CHT	- / -	2	✓ Closing fragment
06-25 18:38	10m	-15 / -	PR2CC	- / -10	3	Partial capture
06-25 18:29	10m	-13 / -	YU4FQN	- / -7	6	✓ Closing fragment
06-25 17:28	10m	-16 / -	IK7OFI	- / -	3	Partial capture
06-25 17:24	10m	-16 / -	PD5SAP	- / -	3	Partial capture
06-25 17:21	10m	-15 / -	DL2KBX	- / -	6	Partial capture
06-25 17:17	10m	-12 / -	HA5LB	- / -10	2	✓ Closing fragment
06-25 17:16	10m	-15 / -11	DD7EE	-12 / -	4	✓ Closing observed
06-25 17:14	10m	-11 / -	G6PHF	- / -	2	Partial capture
06-25 17:07	10m	-15 / -	9A6ACN	- / -15	4	Partial capture
06-25 17:06	10m	-15 / -	SQ5WBW/P	- / -	3	Partial capture
06-25 17:01	10m	-13 / -	G6PHF	- / -	4	Partial capture
06-25 16:58	10m	-12 / -	SQ5WBW/P	- / -	4	Partial capture
06-25 16:53	10m	-15 / -	LZ2VM	- / -17	5	Partial capture
06-25 16:52	10m	-14 / -	ER3CT	- / -9	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
090945 -13 1566  LZ1JZ DO9MAT 73
091045 -14 1565  OZ0JX DO9MAT JN58 (x3)
091200 -19 2180  DO9MAT OO26TRUDO -20
091245 -15 1565  OZ0JX DO9MAT 73
091315 -20 1565  UT4VL DO9MAT JN58 (x4)
091645 -19 1565  YT2FA DO9MAT JN58 (x3)
204300 -15 1781  DO9MAT EA8UP +05 (x2)

80m

UTC    dB Audio  Message
002930 -24 1845  TM8WWA DO9MAT JN58
002945 -11 1651  DO9MAT TM8WWA -18 (x2)
003100 -21 1845  TM2WWA DO9MAT JN58
003115  -5 2564  DO9MAT TM2WWA -04 (x2)
003200 -17 1845  TM2WWA DO9MAT 73
003215  +1 1841  DO9MAT 9A4ZM JN86
003230 -13 1845  9A4ZM DO9MAT -07
003245  +2 1842  DO9MAT 9A4ZM R-03
003300 -24 1845  9A4ZM DO9MAT RR73
003315  -4 1841  DO9MAT 9A4ZM 73
003330 -24 1845  MM0HVU DO9MAT JN58 (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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