M7DDW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO94

Receiver-side FT8 activity involving M7DDW, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-09-14.

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 20 FT8 messages attributed to M7DDW as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (85%), followed by 40 m (15%). Most decodes (85%) fell within the six-hour window 09:00-15:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 3 20m · 17

First attributed message: 2026-06-20
Last attributed message: 2026-09-14 07:08 UTC

Observed FT8 message patterns

Attributed sample: 20 messages
Active dates: 8 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -22 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 4.

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 M7DDW in decoded directed-looking exchanges:

IK4LZH · Italy ×2 DG3KCW · Fed. Rep. of Germany E75AA · Bosnia-Herzegovina EA3NG · Spain EW1MN · Belarus IQ4JO · Italy LZ1ZF · Bulgaria M7GFJ · England OE8PIT · Austria UA6YW · European Russia YO9PH · Romania DG7BST · 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 M7DDW

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: IO94 · 14 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,625 km (approx.)
Last such locator decoded: 2026-09-14 07:08 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	M7DDW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-14 07:10	40m	- / -15	EV4R	+11 / -	4	Partial capture
09-14 07:03	40m	- / -	SP6AXW	-14 / -	2	Partial capture
09-14 06:52	40m	- / -17	DK4FH	+8 / -	2	✓ Closing fragment
09-14 06:43	40m	- / -17	EU4U	+3 / -	4	✓ Closing fragment
09-14 06:40	40m	- / -4	ES3YJ	-13 / -	3	✓ Closing fragment
09-14 06:36	40m	- / -	9A4ZM	-12 / -	2	Partial capture
09-14 06:33	40m	- / -11	SM7WNM	-4 / -	2	✓ Closing fragment
09-13 22:39	40m	- / -	EB3JT	-10 / -	7	Partial capture
09-13 22:38	40m	-24 / -12	EA1AGM	-20 / -	2	Partial capture
09-13 22:34	40m	- / -9	IU5RPJ	-5 / -	5	Partial capture
09-13 22:33	40m	- / -22	EX7CQ	-6 / -	3	Partial capture
09-13 07:54	40m	- / -	ON4KEB	-15 / -	4	Partial capture
09-13 07:39	40m	- / -9	DK6WH	-4 / -	3	✓ Closing fragment
09-13 07:36	40m	- / -8	F4IFO	-18 / -	2	✓ Closing fragment
09-13 07:21	40m	- / -	PD1AC	-19 / -	6	Partial capture
09-13 07:19	40m	- / -3	PA3T	-10 / -	2	✓ Closing fragment
09-12 13:52	40m	- / -1	DM5KM	+2 / -	2	✓ Closing fragment
09-11 07:46	40m	- / -6	DL7EDU	+3 / -	5	Partial capture
09-11 07:43	40m	- / -7	PG4T	-11 / -	2	✓ Closing fragment
09-11 07:40	40m	- / -	F5RRS	-4 / -	4	Partial capture
09-11 07:38	40m	- / -4	F5LPL	-20 / -	2	✓ Closing fragment
09-11 07:24	40m	- / -	F5RRS	+2 / -	4	Partial capture
09-11 07:17	40m	- / -	F1HFP	-10 / -	5	Partial capture
09-11 07:11	40m	- / -	IK2ZJR	-2 / -	2	Partial capture
09-11 07:09	40m	- / +8	DL2BCY	-4 / -	2	✓ Closing fragment
09-11 07:09	40m	- / -	PA2RO	-9 / -	3	Partial capture
09-11 07:05	40m	- / -	PI4DX	-2 / -	2	✓ Closing fragment
09-11 07:04	40m	- / -	F5RRS	+4 / -	4	Partial capture
09-11 06:59	40m	- / -	DL3MIB	0 / -	5	Partial capture
09-11 06:46	40m	- / -15	LB2WD	-14 / -	2	✓ Closing fragment
09-11 06:37	40m	- / -	PD1AC	-11 / -	7	Partial capture
07-15 09:24	20m	-13 / -16	UA6YW	-10 / +3	3	✓ Full exchange observed
07-15 09:21	20m	-4 / -19	OE8PIT	+2 / -10	6	✓ Full exchange observed
07-14 11:27	20m	- / -15	IQ4JO	-4 / -	2	✓ Closing fragment
07-14 11:21	20m	- / -5	YO9PH	-20 / -	2	✓ Closing fragment
07-14 11:17	20m	- / -23	IK4LZH	+3 / -	3	Partial capture
07-11 22:21	40m	- / -	PD0LBY	-18 / -	2	Partial capture
07-11 22:21	40m	- / -16	RC6OD	-12 / -	3	✓ Closing fragment
07-09 22:03	40m	- / -	F5PBG	-8 / -	3	Partial capture
07-09 22:02	40m	- / -16	IK4LZH	-4 / -	2	✓ Closing fragment
07-08 22:12	40m	- / -	DK7ZT	-12 / -	4	Partial capture
07-08 11:41	10m	- / -	DL8LE	+4 / -	3	Partial capture
06-24 08:46	20m	- / -4	LZ1ZF	-6 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
064345  +3 2546  M7DDW EU4U -17 (x4)
065245  +9  982  M7DDW DK4FH -17 (x2)
065445  -9  983  M7DDW ON4KEB JO20
065600  +4 2199  M7DDW SN40KZE -16
070330 -13 2173  M7DDW SP6AXW JO80 (x2)
070800 -10 2814  DH5MK M7DDW IO94
071015 +11 2695  M7DDW EV4R -15 (x4)

20m

UTC    dB Audio  Message
092145  -2  374  M7DDW OE8PIT RR73
092200  -2  374  OE8PIT M7DDW 73
092215  +4  374  M7DDW OE8PIT 73
092300 -17  986  CT1BFP M7DDW IO94
092415  -8  818  M7DDW UA6YW -16
092430 -13  986  UA6YW M7DDW R+03
092445 -11  818  M7DDW UA6YW RR73
101045 -21 1931  M7DDW EA3NG RR73
101215 -13  526  M7DDW EW1MN RR73
101430 -18  807  M7DDW M7GFJ RR73
102215 -14  863  LZ1WV M7DDW IO94
103545  -3  761  M7DDW IK4LZH RR73
103700  -9  482  SM6DTG M7DDW IO94
104215 -19 1100  DJ2MS M7DDW IO94
112700 -21 2202  DL7VTE M7DDW IO94

10m

UTC    dB Audio  Message
114100  +6 2360  M7DDW DL8LE JN68 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee