DK9BM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO41

Receiver-side FT8 activity involving DK9BM, decoded by SO8OO in southeastern Poland. 872 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-06 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 872 FT8 messages attributed to DK9BM as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (41%), followed by 20 m (25%) and 80 m (21%). Most decodes (77%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was -2 dB.

Overview

872

Messages attributed

UTC dates decoded

106

Active 15-min windows

-2 dB

Estimated median S/N

Bands

80m · 181 60m · 28 40m · 359 20m · 214 10m · 90

First attributed message: 2026-06-06
Last attributed message: 2026-09-20 17:33 UTC

Observed FT8 message patterns

Attributed sample: 872 messages
Active dates: 33 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -10 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 106, strong (≥ -8 dB) 749.

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 DK9BM in decoded directed-looking exchanges:

DL3BH · Fed. Rep. of Germany ×2 F1PBZ · France ×2 OK2VCR · Czech Republic ×2 DK8IZ · Fed. Rep. of Germany ×2 DL1UDO · Fed. Rep. of Germany ×2 DM2HB · Fed. Rep. of Germany ×2 DO1BWO · Fed. Rep. of Germany EW7DDR · Belarus F4IOH/P · France HB9MZI · Switzerland IK2SND · Italy IW1QBR · 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 DK9BM

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: JO41 · 527 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 916 km (approx.)
Last such locator decoded: 2026-09-20 17:31 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	DK9BM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 17:33	80m	+2 / +3	DG3YEV	0 / -16	4	✓ Full exchange observed
09-20 17:32	80m	+3 / -	DJ8TX	- / -12	2	✓ Closing fragment
09-20 17:11	40m	+11 / -4	PD0RCQ	+1 / +9	5	✓ Full exchange observed
09-20 17:10	40m	+11 / -	TC2EYL	- / -15	2	Partial capture
09-20 17:08	40m	+16 / -	DJ7XY	- / -6	2	✓ Closing fragment
09-20 17:07	40m	+9 / -3	SQ6FHT	-14 / -8	4	✓ Full exchange observed
09-20 16:51	80m	+3 / -	RI1FJZ	- / -10	2	Partial capture
09-20 12:48	40m	-16 / -	G7HJX	- / -9	2	✓ Closing fragment
09-20 12:47	40m	-15 / +3	DD1OO	-12 / -	5	✓ Closing observed
09-18 18:31	80m	-3 / -	G0ACQ	- / -7	2	✓ Closing fragment
09-18 18:29	40m	-4 / -	IZ8PPI	- / -13	2	✓ Closing fragment
09-18 18:26	40m	-4 / -	DF6WE	-4 / -1	6	✓ Full exchange observed
09-18 18:22	40m	-6 / +1	S57CT	0 / -11	5	✓ Full exchange observed
09-18 18:20	40m	-2 / +4	SP9EVL	+4 / 0	5	✓ Full exchange observed
09-18 18:18	40m	-1 / -4	DB1IUA	-4 / -3	5	✓ Full exchange observed
09-18 18:18	40m	0 / +10	9A5BDE	-5 / -6	3	✓ Full exchange observed
09-18 17:01	40m	+6 / -	R8LCA	- / -14	2	✓ Closing fragment
09-18 16:59	40m	+10 / -	G7SQW	- / -4	2	✓ Closing fragment
09-18 16:55	40m	+3 / -	UA4FKT	+4 / +2	5	Partial capture
09-18 16:54	40m	+4 / -	PD0JEW	- / -4	2	✓ Closing fragment
09-11 20:58	80m	0 / -	F1PBZ	- / -5	2	✓ Closing fragment
09-11 20:53	80m	- / -21	US5WFL	-7 / -	2	Partial capture
09-11 20:51	80m	+1 / -	CT2GQA	- / -11	2	✓ Closing fragment
09-11 18:34	80m	- / +10	DA6WM	-6 / -	3	✓ Closing fragment
09-11 16:00	40m	+9 / -	M8JJS	- / -16	6	Partial capture
09-11 15:59	40m	+6 / +2	YL3GCJ	-14 / -12	3	✓ Full exchange observed
09-11 15:56	40m	+12 / -	SP7IIX	- / -2	2	✓ Closing fragment
09-11 15:54	40m	+5 / -	DM8TB	- / -12	2	✓ Closing fragment
09-11 15:46	40m	+10 / -	G3YPP/P	- / -5	2	✓ Closing fragment
09-11 15:41	40m	+13 / -	DF4JY	- / -10	2	✓ Closing fragment
09-05 18:57	40m	+1 / -	T77NC	- / -11	2	Partial capture
09-05 18:56	40m	+4 / +3	DL1UDO	+7 / +3	5	✓ Full exchange observed
09-05 18:54	40m	+8 / -	T77NC	- / -6	2	Partial capture
09-05 18:50	40m	+6 / -	Z62NS	- / -	2	Partial capture
09-05 18:47	40m	+1 / -7	EX7CQ	-1 / -12	5	✓ Full exchange observed
09-04 18:49	40m	-2 / -	G4XLO	- / -16	2	✓ Closing fragment
09-04 18:43	40m	+15 / -	EW8DG	- / -9	2	✓ Closing fragment
09-04 18:35	80m	-5 / -	IZ4AIF	-5 / -12	3	✓ Closing observed
09-04 18:31	80m	-12 / -	IK2BUF	- / +8	2	Partial capture
09-04 15:58	40m	+9 / -	IK2SGF	- / +2	6	Partial capture
09-03 18:56	40m	+11 / -	DL2KAC	- / -16	2	✓ Closing fragment
09-03 18:55	40m	+8 / -4	EA4D	-1 / +4	5	✓ Full exchange observed
09-03 18:42	40m	+10 / -	ON1DGN	- / -3	2	✓ Closing fragment
09-03 15:05	40m	0 / -	IK2BUF	-17 / -8	3	✓ Full exchange observed
09-02 20:47	40m	+4 / -	JG3TRB	- / -5	2	Partial capture
09-02 20:43	40m	+12 / -	DS5USH	- / -11	5	✓ Closing fragment
09-02 20:42	40m	+6 / -	VK3NX	- / -12	2	Partial capture
09-02 20:40	40m	+7 / -	RI1FJL	- / -18	3	Partial capture
09-02 20:21	40m	+4 / -9	IU4CNX	0 / -	3	✓ Closing observed
09-01 20:16	80m	-11 / -	RI1FJL	- / -	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
210115  -4 2719  CQ DK9BM JO41
210245  -4 2719  M7GOA DK9BM RR73
183100  -2 2821  CQ DK9BM JO41
183130  -3 2821  G0ACQ DK9BM -07 (x2)
171300 -23 2247  CQ DK9BM JO41
165145  +4 2924  RI1FJZ DK9BM -10 (x2)
173145  +2 2828  CQ DK9BM JO41
173215  +5 2828  DJ8TX DK9BM -12 (x2)
173315  +3 2828  DG3YEV DK9BM -16
173330  +4 1282  DK9BM DG3YEV R+03
173345  +2 2828  DG3YEV DK9BM RR73
173400  -3 1282  DK9BM DG3YEV 73

40m

UTC    dB Audio  Message
170715  +8 2762  SQ6FHT DK9BM -08
170730 -13 1409  DK9BM SQ6FHT R-03
170745 +10 2762  SQ6FHT DK9BM RR73
170815 +14 2762  CQ DK9BM JO41
170845 +17 2761  DJ7XY DK9BM -06 (x2)
170945 +11 2761  CQ DK9BM JO41
171015 +11 2761  TC2EYL DK9BM -15 (x2)
171115 +12 2761  CQ DK9BM JO41
171130  +3 2760  DK9BM PD0RCQ JO21
171145 +13 2761  PD0RCQ DK9BM +09
171200  -2 2760  DK9BM PD0RCQ R-04
171215  +9 2760  PD0RCQ DK9BM RR73
171230  +2 2760  DK9BM PD0RCQ 73

60m

UTC    dB Audio  Message
190215  -8  980  DK9BM PE1MHY RR73
190230  -2 2829  PE1MHY DK9BM 73
190300 -10 2830  CQ DK9BM JO41                         a1 (x4)
190515  +0 1425  DK9BM DL8UD +14
190530  +0 2829  DL8UD DK9BM R+21
190545  +0 1425  DK9BM DL8UD RR73
190600  -5 2829  DL8UD DK9BM 73
190630  -5 2829  CQ DK9BM JO41 (x2)
203400 -22 1848  DK9BM DK2CC JO63
200815  -3 2890  CQ DK9BM JO41 (x2)

20m

UTC    dB Audio  Message
163830  -8 2323  CQ WW DK9BM JO41 (x4)
094415 -12 3007  EP2AES DK9BM RR73
094530 -14 2248  DK9BM UT7AM KO70
094615  -4 3007  UT7AM DK9BM RR73 (x2)
094715  -9 3007  CQ DK9BM JO41 (x5)
094945  -4 3007  LY2BSW DK9BM +15 (x2)

10m

UTC    dB Audio  Message
162645  -7 2802  CQ DK9BM JO41
162715  -8 2802  M0IAP DK9BM +13 (x2)
162815  -4 2801  CQ DK9BM JO41
162845  -8 2802  IW1QBR DK9BM -09 (x2)
162945  -6 2802  CQ DK9BM JO41 (x2)
164645  -4 2803  F4IOH/P DK9BM RR73
164715  -6 2802  CQ DK9BM JO41 (x3)
113045 -16 1522  DK9BM IK2SND JN45 (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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