M7DFM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO91

Receiver-side FT8 activity involving M7DFM, decoded by SO8OO in southeastern Poland. 173 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-16.

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 173 FT8 messages attributed to M7DFM as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (47%), followed by 40 m (38%) and 80 m (14%). Most decodes (90%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

173

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 1 80m · 24 40m · 66 20m · 82

First attributed message: 2026-06-08
Last attributed message: 2026-09-16 22:48 UTC

Observed FT8 message patterns

Attributed sample: 173 messages
Active dates: 21 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -16 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 81, strong (≥ -8 dB) 68.

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 M7DFM in decoded directed-looking exchanges:

F1PBZ · France ×3 GM4JYB · Scotland ×2 PY7XC · Brazil ×2 E75W · Bosnia-Herzegovina F1GIW · France F4FSY · France F6FDY · France I4WQH · Italy IZ4JMA · Italy RV6HE · European Russia YO9HP · Romania DK2EU · 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 M7DFM

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: IO91 · 83 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,607 km (approx.)
Last such locator decoded: 2026-09-16 22:48 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	M7DFM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 10:30	40m	- / +1	DA1ST	-7 / -	4	✓ Closing fragment
09-16 22:47	40m	+1 / -	K1UHF	- / -	2	Partial capture
09-16 20:04	40m	- / -16	HB9ELE	+12 / -	2	Partial capture
09-16 20:02	40m	- / -13	IK4RVY	-8 / -	2	✓ Closing fragment
09-16 20:00	40m	-17 / -1	F1BBM	-14 / -	5	Partial capture
09-16 19:57	40m	-14 / -	MI7JQH	- / +1	5	✓ Closing fragment
09-14 04:49	80m	-11 / -13	S55OO	-4 / -	6	Partial capture
09-14 04:47	80m	-10 / -6	SP6JIU	+26 / -	3	✓ Closing observed
09-12 10:27	40m	- / -	S55OO	-10 / -	5	Partial capture
09-12 07:54	40m	- / -5	OT7K	+7 / -	2	✓ Closing fragment
09-12 07:52	40m	- / +2	PB0ACU	-17 / -	3	✓ Closing fragment
09-12 07:44	40m	- / -	SP6FME	+5 / -	3	Partial capture
09-11 21:09	80m	-12 / -	IU1DXU	- / -	6	Partial capture
09-11 21:08	80m	-16 / -4	DD7EE	+17 / -6	5	✓ Full exchange observed
09-11 01:55	80m	- / -10	SQ6ELK	+4 / -	2	✓ Closing fragment
09-11 01:53	80m	- / -18	OH6IH	-11 / -	2	✓ Closing fragment
09-11 01:50	80m	- / -	YO6LM	+22 / -	2	Partial capture
09-11 01:44	80m	-19 / -11	ON1JP	-11 / -13	2	Partial capture
09-11 01:44	80m	- / -20	OH6IH	-5 / -	3	Partial capture
09-11 01:43	80m	- / -	YO6LM	+24 / -	2	Partial capture
09-11 01:41	80m	-12 / -6	MM3JFM	-5 / -	5	✓ Closing observed
09-11 01:37	80m	- / -21	F1PBZ	+8 / -	3	Partial capture
09-11 01:34	80m	- / -17	OH6IH	-6 / -	3	Partial capture
09-08 21:49	40m	-5 / -	EA8BIA	- / -	3	Partial capture
09-08 21:47	40m	-5 / -	5B4AMM	- / -	2	Partial capture
09-08 21:46	40m	-2 / -	CS8ABF	- / -	2	Partial capture
09-08 21:27	160m	- / -9	GM4JYB	-17 / -	6	✓ Closing fragment
09-07 10:13	40m	- / -11	OZ9FF	-16 / -	5	Partial capture
09-07 10:08	40m	- / -16	DK8EW	0 / -	3	✓ Closing fragment
09-06 17:06	40m	- / -	PD0TH	-15 / -	3	Partial capture
09-06 16:56	40m	- / -3	IK2BUF	0 / -	2	✓ Closing fragment
09-06 16:48	40m	- / -10	PD1BJO	-21 / -	3	✓ Closing fragment
09-06 04:18	160m	- / -13	DF2NV	-10 / -	2	Partial capture
09-06 03:28	160m	- / -17	OK1DXR	+11 / -	3	✓ Closing fragment
09-06 03:15	160m	- / -14	DK2EU	-4 / -	3	✓ Closing fragment
09-06 03:13	160m	- / -3	F1PBZ	+3 / -	2	✓ Closing fragment
09-06 03:11	160m	- / -12	SM3JGG	0 / -	3	✓ Closing fragment
09-06 03:05	160m	- / -7	HA7TM	+1 / -	2	✓ Closing fragment
09-06 03:03	160m	- / -3	LA4O	-14 / -	3	✓ Closing fragment
09-06 03:00	160m	- / -5	G8MIA	-8 / -	3	✓ Closing fragment
08-26 20:26	20m	-6 / -14	US5ZCO	-9 / -	5	Partial capture
08-24 17:48	20m	-2 / -	JN1ILK	- / -	3	Partial capture
08-24 17:35	20m	- / -	RZ4FWA	+2 / -	3	Partial capture
08-24 17:08	40m	- / -10	DG4BBK	-6 / -	3	✓ Closing fragment
08-24 05:40	40m	- / -11	DC1KN	-19 / -	2	✓ Closing fragment
08-24 05:32	40m	- / -14	DJ3HW	-7 / -	3	✓ Closing fragment
08-24 05:30	40m	- / -5	HB9EFK	0 / -	2	✓ Closing fragment
08-23 22:54	40m	- / -8	M0LHJ	-11 / -	2	✓ Closing fragment
08-14 18:28	20m	-13 / -	BG7BVI	- / -	6	Partial capture
08-14 18:20	20m	-7 / -	SQ8ACE	- / -3	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
200130 -15 1857  M7DFM F1BBM -01 (x2)
200245  -9 2010  M7DFM IK4RVY -13 (x2)
200415 +12  739  M7DFM HB9ELE -16 (x2)
224745  -1 2654  K1UHF M7DFM IO91 (x2)
103030  -9 2555  M7DFM DA1ST JO41 (x4)
103500 -19 2286  M7DFM DG3BD JO30
103930 -21 1280  M7DFM PG5FRL JO22
104130 -14 2488  M7DFM DK1XAM JO42

80m

UTC    dB Audio  Message
211045 -11 2618  IU1DXU M7DFM IO91 (x4)
211400 -17 2618  EH4PDA M7DFM IO91
044730 +26 2849  M7DFM SP6JIU -06 (x2)
044815 -10 2620  SP6JIU M7DFM 73
044915 -11 2619  <S55OO> M7DFM
044945 -15 2618  GX4RAF/P M7DFM
045000  +1 1906  M7DFM S55OO -13 (x5)

160m

UTC    dB Audio  Message
031500  -5 1520  M7DFM DK2EU JO31 (x3)
031715 -21 1522  CQ M7DFM IO91
032815 +12 1196  M7DFM OK1DXR -17 (x3)
041845 -10  927  M7DFM DF2NV -13 (x2)
212745 -16 1797  M7DFM GM4JYB -09 (x6)

20m

UTC    dB Audio  Message
173500  +0 1811  CQ M7DFM IO91
173515  +1 2068  M7DFM RZ4FWA LO23 (x3)
173800  -8 1811  JN1ILK M7DFM IO91
174300 -11 1811  CQ M7DFM IO91
174800  -3 1812  JN1ILK M7DFM IO91 (x4)
202615  -4  820  US5ZCO M7DFM IO91 (x4)
202830  -9  821  M7DFM US5ZCO -14

10m

UTC    dB Audio  Message
075230  -6 1808  M7DFM F4FSY -16
075300 -10 1145  M7DFM F6FDY JN33 (x3)
094130 -10  777  M7DFM IZ4JMA JN54 (x2)
094630  +4  934  M7DFM YO9HP -12 (x2)
095100  -2 2543  M7DFM E75W -12 (x3)
100330  -3 2544  M7DFM I4WQH JN54 (x3)
101630 -17 1046  M7DFM CS8ABF +10

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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