DF1MAT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN48

Receiver-side FT8 activity involving DF1MAT, decoded by SO8OO in southeastern Poland. 114 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-20.

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 114 FT8 messages attributed to DF1MAT as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (39%), followed by 60 m (19%) and 160 m (18%). Several six-hour UTC windows tied for the largest share (75%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -6 dB.

Overview

114

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

160m · 21 80m · 9 60m · 22 40m · 7 20m · 44 10m · 11

First attributed message: 2026-06-13
Last attributed message: 2026-09-20 07:53 UTC

Observed FT8 message patterns

Attributed sample: 114 messages
Active dates: 10 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 78.

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 DF1MAT in decoded directed-looking exchanges:

YU7AS · Serbia ×2 UA4COA · European Russia 9A5E · Croatia IW5DNZ · Italy UA1OMS · European Russia JA9ELE · Japan K2AK · United States RI1FJL · Franz Josef Land UA6YW · European Russia UN0GY · Kazakhstan DK7ZT · Fed. Rep. of Germany IU2BZV · 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 DF1MAT

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: JN48 · 59 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 941 km (approx.)
Last such locator decoded: 2026-09-20 07:53 UTC

Other locator fields attributed to this token: JO30 (4).

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	DF1MAT S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 07:52	40m	-8 / -	TF5B	- / -	2	Partial capture
09-18 16:42	60m	- / -	DL7UKM	+1 / -	6	Partial capture
09-18 16:41	60m	-16 / -1	IV3FSG	-3 / -	3	Partial capture
09-18 16:39	60m	-13 / +2	DL5NON	-9 / -5	5	Partial capture
09-17 18:14	160m	- / -16	9A5E	-7 / -	2	✓ Closing fragment
09-17 18:14	80m	- / -	DO9SAM	+4 / -	2	Partial capture
09-17 18:12	80m	-5 / -5	OH5KNL	+2 / -	3	✓ Closing observed
08-29 19:18	60m	-1 / +3	OM5JG	+4 / -	5	✓ Full exchange observed
08-29 19:15	60m	-8 / -5	F5MYK	-7 / -3	4	✓ Full exchange observed
08-29 19:14	60m	-3 / -	F6FHZ	- / -16	5	Partial capture
08-29 19:13	60m	-2 / -4	OV5SP	-6 / +4	5	✓ Full exchange observed
08-29 19:10	80m	-2 / -12	DO9BAU	-1 / -7	5	✓ Full exchange observed
08-29 19:08	80m	+2 / -8	YU7AS	+3 / 0	7	✓ Full exchange observed
08-29 19:04	80m	-3 / -6	SM5RYW	-7 / -4	4	Partial capture
08-29 19:00	160m	-9 / -19	UA1OMS	0 / +6	9	✓ Full exchange observed
08-29 18:59	160m	-8 / -	DO1BWO	- / -14	2	Partial capture
08-29 18:58	160m	-5 / -	IW5DNZ	- / -14	3	✓ Closing fragment
08-29 18:57	160m	-8 / -	RU3XK	- / -	2	Partial capture
08-29 18:29	20m	-1 / -	SV1EAG	- / -	2	Partial capture
08-29 18:27	20m	+5 / -	RI1FJL	- / -10	3	✓ Closing fragment
08-29 18:26	20m	+4 / -	ZS6HON	- / -	2	Partial capture
08-29 18:25	20m	+3 / -	BG7BVI	- / -	2	Partial capture
08-29 18:24	20m	+2 / -	UA6YW	+4 / +1	4	✓ Closing observed
08-29 18:22	20m	+5 / -	K2AK	- / -9	3	✓ Closing fragment
08-29 18:17	20m	-3 / -	ZS6HON	- / -	9	Partial capture
08-29 18:16	20m	-2 / -	SV1EAG	- / -	2	Partial capture
08-29 18:14	20m	-3 / -	JA9ELE	- / -18	4	✓ Closing fragment
08-22 13:20	40m	-12 / -	DK7ZT	-19 / +7	3	✓ Full exchange observed
08-22 13:19	40m	-13 / -	IU2BZV	- / -9	3	✓ Closing fragment
08-22 13:13	60m	- / -18	DD6ZV	-13 / -	5	✓ Closing fragment
08-22 12:21	10m	+8 / -	SV2CLJ	- / -2	2	Partial capture
08-08 19:09	160m	- / -	HF5A	-5 / -	5	Partial capture
08-08 18:55	160m	-22 / -20	SV2JAO	-6 / -	5	Partial capture
08-08 09:28	20m	-3 / -	R2FBW	- / -	2	Partial capture
07-24 14:06	40m	- / -	HG8LXL	-12 / -	2	Partial capture
07-24 13:26	20m	-14 / -	KF0YOB	- / -	2	Partial capture
07-24 13:22	20m	-6 / -	KF0YOB	- / -	4	Partial capture
07-19 12:46	10m	+9 / -	SM2LIY	- / -	2	Partial capture
07-19 12:42	10m	+4 / -	UA4COA	- / -2	2	✓ Closing fragment
06-26 18:13	20m	-16 / -3	UA4FEN	+5 / +3	4	Partial capture
06-26 18:10	20m	-15 / -	UN0GY	- / -	2	✓ Closing fragment
06-26 17:59	60m	-13 / -	IW2OHP	-17 / -4	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
140600 -14 1492  DF1MAT HG8LXL KN06 (x2)
131915 -13 2484  IU2BZV DF1MAT JN48 (x3)
132030 -20 1906  DF1MAT DK7ZT +31
132045 -12 2484  DK7ZT DF1MAT R+07
132100 -18 1905  DF1MAT DK7ZT RR73
132145 -14 2484  F8MRQ DF1MAT -01
153700  -3 1684  DF1MAT UA4FEN -20
075230  -8 2377  TF5B DF1MAT JN48 (x2)

60m

UTC    dB Audio  Message
163915 -13 1778  CQ DF1MAT JN48
163945 -13 1778  DL5NON DF1MAT -05
164000  -9  802  DF1MAT DL5NON R+02
164015 -11 1778  DL5NON DF1MAT RRR (x3)
164145 -16 1778  IV3FSG DF1MAT JN48
164230  +3  722  DF1MAT DL7UKM JO62
164300  -4  772  DF1MAT IV3FSG -01
164300  +1  722  DF1MAT DL7UKM JO62
164330  -2  772  DF1MAT IV3FSG -01
164330  +2  722  DF1MAT DL7UKM JO62 (x4)

160m

UTC    dB Audio  Message
185900  -6  567  IW5DNZ DF1MAT 73
185930  -9  567  DO1BWO DF1MAT -14 (x2)
190030 -10  567  UA1OMS DF1MAT JN48 (x4)
190215  +0 1769  DF1MAT UA1OMS -19
190230  -6  567  UA1OMS DF1MAT R+06 (x2)
190315  -1 1769  DF1MAT UA1OMS RR73
190330  -6  567  UA1OMS DF1MAT 73
181445  -8 2127  DF1MAT 9A5E -16 (x2)
181745 -10  716  DF1MAT IU3RRX JN55

80m

UTC    dB Audio  Message
190915  +5 1124  DF1MAT YU7AS -08
190930  -2  783  YU7AS DF1MAT R+00
190945  +1 1124  DF1MAT YU7AS RR73
191030  +5  783  YU7AS DF1MAT 73
191045  +3 1124  DF1MAT YU7AS 73
191045  +0 2402  DF1MAT DO9BAU JO62
191100  -5  783  DO9BAU DF1MAT -07
191115  -6 2402  DF1MAT DO9BAU R-12
191130  +2  783  DO9BAU DF1MAT RRR
191145  +4 2402  DF1MAT DO9BAU 73
181215  -5  807  OH5KNL DF1MAT JN48
181230  +3 2494  DF1MAT OH5KNL -05 (x2)
181400  +6  807  DF1MAT DO9SAM JO61 (x2)

20m

UTC    dB Audio  Message
182345  +3 2758  K2AK DF1MAT 73
182400  +6 2759  DF1MAT UA6YW LN04
182415  +2 2759  UA6YW DF1MAT +01 (x2)
182500  +1 2759  DF1MAT UA6YW 73
182515  +4 2758  BG7BVI DF1MAT JN48 (x2)
182615  +3 2758  ZS6HON DF1MAT JN48 (x2)
182715  +6 2758  RI1FJL DF1MAT JN48 (x3)
182915  -1 2758  SV1TRJ DF1MAT JN48
182945  -3 2759  SV1EAG DF1MAT JN48 (x2)

10m

UTC    dB Audio  Message
124045 -19 1845  EX8ABR DF1MAT R+04
124215  -3 2889  UA4COA DF1MAT R-02 (x2)
124315  +6 2890  UA4FEN DF1MAT R-22
124445  +9 2889  EA1AA DF1MAT +03
124615  +7 2889  <...> DF1MAT JO30
124645  +8 2889  SM2LIY DF1MAT JO30 (x2)
122115 +11 2762  SV2CLJ DF1MAT JO30 (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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