DH3MFW — 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 DH3MFW, decoded by SO8OO in southeastern Poland. 482 FT8 messages attributed to this token as transmitter, on 80m, 20m, 10m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-29.

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 482 FT8 messages attributed to DH3MFW as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (77%), followed by 80 m (12%) and 10 m (11%). Most decodes (67%) fell within the six-hour window 06:00-12:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.8 dB.

Overview

482

Messages attributed

UTC dates decoded

Active 15-min windows

-9.8 dB

Estimated median S/N

Bands

80m · 59 20m · 371 10m · 52

First attributed message: 2026-06-07
Last attributed message: 2026-08-29 23:55 UTC

Observed FT8 message patterns

Attributed sample: 482 messages
Active dates: 22 UTC dates
Estimated median S/N: -9.8 dB
Estimated 10th-90th percentile: -15 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 47, moderate (-15 to -9 dB) 230, strong (≥ -8 dB) 205.

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 DH3MFW in decoded directed-looking exchanges:

F1PBZ · France ×2 TF4M · Iceland ×2 EA3AKY · Spain F4BJN · France HA3MN · Hungary PE1K · Netherlands SP0LPR · Poland SP2LNY · Poland 3Z6I · Poland CT1BFP · Portugal DC5QV · Fed. Rep. of Germany DF2JK · Fed. Rep. of Germany

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 DH3MFW

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 · 292 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 799 km (approx.)
Last such locator decoded: 2026-08-29 23:55 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	DH3MFW S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 23:53	80m	- / -	PG9S	-16 / -	2	Partial capture
08-29 23:47	80m	-6 / -	HB9IIH	+2 / -	3	✓ Closing observed
08-29 23:46	80m	-3 / -	YO5QDN	- / -	2	Partial capture
08-29 23:44	80m	-3 / +2	DO5HOK	0 / +2	5	✓ Full exchange observed
08-29 23:42	80m	+1 / +2	YL4U	+9 / +2	6	✓ Full exchange observed
08-29 23:40	80m	+4 / +1	LZ1GC	+20 / -	5	✓ Closing observed
08-29 23:39	80m	+1 / -9	9A2TN	+3 / -	3	✓ Closing observed
08-29 23:36	80m	+2 / +1	DO2RG	+11 / +3	6	✓ Full exchange observed
08-29 23:34	80m	+5 / -	E71AVW	- / -	4	Partial capture
08-29 23:32	80m	0 / -1	TF4M	-13 / -15	4	✓ Full exchange observed
08-29 23:29	80m	+1 / -17	M9DNC	-8 / -19	8	✓ Full exchange observed
08-29 23:27	80m	+7 / 0	DO5HB	-10 / +5	7	✓ Full exchange observed
08-29 23:25	80m	+3 / -1	DO1DX	+1 / -8	5	✓ Full exchange observed
08-29 23:19	80m	+1 / -	AA1V	- / -16	7	Partial capture
08-29 23:16	80m	0 / -4	UA9UR	0 / -3	6	✓ Full exchange observed
08-29 23:10	80m	- / +6	HB3YBG	-2 / -	3	✓ Closing fragment
08-29 23:09	80m	-1 / -2	DL3HN	-3 / -9	6	Partial capture
08-29 23:08	80m	0 / -	F5HNQ	- / -3	2	Partial capture
08-29 23:06	80m	- / -13	IQ4JO	+4 / -	4	✓ Closing fragment
08-29 23:01	80m	+4 / -	DO5PY	-10 / -1	5	Partial capture
08-29 23:01	80m	- / -1	OK1UOZ	+12 / -	7	✓ Closing fragment
08-29 22:59	80m	+8 / -	UF4S	- / -	2	Partial capture
08-28 08:23	10m	-14 / -14	F5MYH	-5 / -8	5	Partial capture
08-28 08:02	10m	-14 / -	PE1K	-13 / -1	2	✓ Closing observed
08-28 07:53	10m	-9 / -	PE1NPS	- / +6	11	Partial capture
08-28 07:50	10m	-10 / +3	F4BJN	-23 / -4	5	✓ Full exchange observed
08-28 07:44	10m	-7 / -	EA3AKY	- / 0	3	✓ Closing fragment
08-28 07:41	10m	-4 / -	F1OUN	- / -	2	Partial capture
08-28 07:35	10m	-6 / -8	ON6AA	-6 / -	3	Partial capture
08-28 07:31	10m	-8 / -	SP0LPR	- / -	3	✓ Closing fragment
08-28 07:22	10m	-6 / -	SP2LNY	- / +10	4	✓ Closing fragment
08-28 07:20	10m	-5 / -	SP1ETT	- / -	3	Partial capture
08-28 07:18	10m	-9 / -	RA1WZ	- / -4	2	Partial capture
08-27 23:20	40m	- / -14	F1PBZ	0 / -	4	✓ Closing fragment
08-27 08:17	20m	+2 / -	SP2KW	- / -17	2	Partial capture
08-27 08:08	20m	+6 / -	CT1END/P	- / -	2	Partial capture
08-16 08:19	20m	-10 / -	OG8V	- / -16	2	Partial capture
08-15 07:08	20m	- / -21	R9FEM	-5 / -	3	✓ Closing fragment
08-15 06:52	20m	-6 / -	OH3MB	- / -20	2	✓ Closing fragment
08-14 14:18	20m	-10 / -	RD0L	- / -	2	Partial capture
08-11 14:57	20m	-14 / -	BI4KYT	- / -	4	Partial capture
08-11 14:53	20m	-14 / -	PD4FL	-24 / -4	4	Partial capture
08-11 14:39	20m	-10 / -	JG1SYK	- / -12	5	Partial capture
08-11 14:34	20m	-6 / -	JG1SYK	- / -12	4	Partial capture
08-11 14:31	20m	-6 / -	F6FBI	- / +8	3	Partial capture
08-11 14:14	20m	-6 / -	TA3ZGR	- / -15	2	Partial capture
08-11 14:10	20m	-13 / -	TA3ZGR	- / -15	3	Partial capture
08-11 14:08	20m	-11 / -	JA8RVP	- / -15	3	✓ Closing fragment
08-11 13:52	20m	-15 / -	YO3FVR/P	- / -24	2	✓ Closing fragment
08-11 13:38	20m	-6 / -12	PE0F	-2 / -	5	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
223400 -14  856  DH3MFW LY8O -10 (x2)
074530 -18 1252  DH3MFW OM6APJ R-04
075130 -16  240  DH3MFW DK5DW JN68
232045  -3  489  DH3MFW F1PBZ -14 (x4)
074000  -2 2401  DH3MFW SN40KZE -13
083115 -20 2077  DH3MFW IR0IADU -12

80m

UTC    dB Audio  Message
234500  -4  703  DO5HOK DH3MFW R+02
234515  +0  808  DH3MFW DO5HOK RR73
234530  -4  703  DO5HOK DH3MFW 73
234630  -5  703  YO5QDN DH3MFW JN58 (x2)
234745  +0  702  DH3MFW HB9IIH R JN36
234800  -6  703  HB9IIH DH3MFW RR73
234815  +5  702  DH3MFW HB9IIH 73
234900  -5  703  RV0AR DH3MFW JN58
235245 -13 1120  DH3MFW EA1KCN -18
235345 -15 2382  DH3MFW PG9S JO32
235345  +3  658  DH3MFW PE2JMR JO33
235345  +2 2000  DH3MFW F5HNQ IN98
235415 -17  752  DH3MFW PG9S JO32
235500  +3  752  IT9BYL DH3MFW JN58

20m

UTC    dB Audio  Message
081930 -12  762  OG8V DH3MFW JN58 (x2)
060815 -12  947  DH3MFW G4SRT IO82
080400 -17  945  E70SZ DH3MFW -21
080830  +5  943  CT1END/P DH3MFW JN58 (x2)
081130  +5  910  CQ DH3MFW JN58 (x4)
081330  -2  800  N5AJY DH3MFW JN58
081730  +0  800  SP2KW DH3MFW -17 (x2)
160445 -13  777  BG7BVI DH3MFW JN58
221600 -10 1767  DH3MFW PY2XAT RR73

10m

UTC    dB Audio  Message
075800 -11  742  PE1NPS DH3MFW +06 (x2)
080100  -6  646  CQ DH3MFW JN58 (x2)
080200 -14  646  PE1K DH3MFW -01
080245 -13  646  DH3MFW PE1K 73
080330 -11  646  OK2XCG DH3MFW -11
080600 -12  646  HA3MN DH3MFW 73
080900 -11  645  BG5CZD DH3MFW JN58
082300 -12  704  F5MYH DH3MFW JN58
082345  -3 2016  DH3MFW F5MYH -14
082400 -12  816  F5MYH DH3MFW R-08
082415  -7 2016  DH3MFW F5MYH -14
082430 -17  816  F5MYH DH3MFW R-08 (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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