M7SDQ — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO83

Receiver-side FT8 activity involving M7SDQ, decoded by SO8OO in southeastern Poland. 202 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 25 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-21.

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 202 FT8 messages attributed to M7SDQ as the transmitting token by decoded message structure across 25 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (37%), followed by 40 m (35%) and 80 m (21%). Most decodes (71%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

202

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 43 40m · 70 20m · 75 10m · 14

First attributed message: 2026-06-06
Last attributed message: 2026-10-21 21:39 UTC

Observed FT8 message patterns

Attributed sample: 202 messages
Active dates: 25 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -21 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 80, moderate (-15 to -9 dB) 82, strong (≥ -8 dB) 40.

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 M7SDQ in decoded directed-looking exchanges:

DL1SRS · Fed. Rep. of Germany ×2 EW8AAC · Belarus ×2 F4MVU · France ×2 IQ4JO · Italy ×2 R5AV · European Russia ×2 EA3HCJ · Spain ×2 CU8AF · Azores EA8UP · Canary Islands IX1ABE · Italy LA1QAA · Norway PD0HLA · Netherlands XQ1KK · Chile

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 M7SDQ

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: IO83 · 102 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,744 km (approx.)
Last such locator decoded: 2026-10-21 21:39 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	M7SDQ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 00:40	40m	- / +3	F1PBZ	-9 / -	3	Partial capture
10-21 23:57	40m	- / -12	4X1UF	-10 / -	2	✓ Closing fragment
10-21 23:35	40m	- / -	IU8RFW	-5 / -	4	Partial capture
10-21 21:38	40m	-8 / -	EY7BP	- / -	2	Partial capture
10-21 21:19	40m	-10 / -	YO9HP	- / -16	2	Partial capture
10-21 21:17	40m	-11 / -11	F4MVU	+3 / +3	10	✓ Full exchange observed
10-21 21:10	40m	-7 / -	AP5ARS	- / -	2	Partial capture
10-21 21:09	40m	-14 / -	BD8ENX	- / -	2	Partial capture
10-21 21:05	40m	+2 / -	R5AV	- / -8	3	✓ Closing fragment
10-18 23:47	40m	-18 / -	R2AL	- / +10	3	Partial capture
10-18 23:38	40m	- / -	R2AL	-12 / -	4	Partial capture
10-18 23:36	40m	- / -13	RN6HK	+3 / -	7	Partial capture
10-18 23:36	40m	- / -	UR9QQ	-19 / -	2	Partial capture
10-18 23:35	40m	- / -9	IQ4JO	-13 / -	2	✓ Closing fragment
10-18 21:40	80m	-14 / -	R4FDD	-18 / -20	6	Partial capture
10-18 21:26	40m	-14 / +2	EA5FD	-19 / -21	5	✓ Full exchange observed
10-18 21:23	40m	-14 / -	DC1RSS	- / -1	2	✓ Closing fragment
10-18 19:54	40m	-21 / -	GJ0KYZ	- / -	2	Partial capture
10-18 19:06	40m	-12 / -7	DL1SRS	-6 / -	3	✓ Closing observed
10-18 18:55	40m	- / -11	DL7ACA	+2 / -	6	✓ Closing fragment
10-03 23:59	40m	-14 / -	EX7CQ	-7 / -5	4	✓ Closing observed
10-03 23:42	40m	+2 / -	WV9T	- / -	2	Partial capture
10-03 23:34	40m	0 / -	N1WI	- / -18	4	Partial capture
10-03 23:21	40m	-8 / -	VE1LAW	- / -19	4	✓ Closing fragment
10-01 23:00	40m	- / -	IU8RFW	-6 / -	4	Partial capture
10-01 22:58	40m	-18 / -	CN8NY	- / +2	2	Partial capture
10-01 22:56	40m	-15 / -	LZ1ZF	- / -	2	Partial capture
10-01 22:52	40m	- / -	EA1IOK	-13 / -	4	Partial capture
10-01 22:45	40m	-20 / -	YO4NF	-4 / -	2	✓ Closing observed
10-01 22:39	40m	- / -	EA1IOK	-12 / -	2	Partial capture
10-01 22:38	40m	-18 / -	9A4ZM	- / -3	2	✓ Closing fragment
10-01 22:36	40m	-11 / -	OH2CUB/P	- / -	2	Partial capture
09-25 20:37	80m	- / -25	DK7ZT	+7 / -	4	Partial capture
08-31 22:51	80m	-18 / -	F6BHK	- / -2	5	Partial capture
08-31 22:45	80m	- / -	DL9KM	-4 / -	7	Partial capture
08-31 22:45	80m	-18 / -12	LZ2VQ	+5 / -12	5	✓ Full exchange observed
08-31 22:41	80m	-9 / -	9A3TGY	- / -	2	Partial capture
08-31 22:09	40m	- / 0	DL3MIB	+2 / -	3	✓ Closing fragment
08-31 21:54	40m	-10 / -	RI1FJL	- / -	2	Partial capture
08-31 21:39	80m	-13 / -21	YO3OBB	-9 / -	8	Partial capture
08-31 21:39	80m	- / -	LZ2VQ	-8 / -	2	Partial capture
08-31 21:37	80m	- / -	F1PBZ	+1 / -	2	✓ Closing fragment
08-31 21:34	80m	- / -11	F1PBZ	0 / -	2	Partial capture
08-31 21:34	80m	- / -16	IQ4JO	0 / -	3	✓ Closing fragment
08-31 21:28	80m	-17 / -11	DL1SRS	-7 / -15	5	✓ Full exchange observed
08-31 21:27	80m	-20 / -2	CT7AIU	-17 / +1	6	✓ Full exchange observed
08-31 21:23	80m	- / -1	GM6URC	-10 / -	2	✓ Closing fragment
08-31 21:15	80m	- / -17	DO9BAU	+1 / -	4	✓ Closing fragment
08-31 21:15	80m	- / -	SP9YGD	+10 / -	2	Partial capture
08-31 21:10	80m	-17 / -11	OG2KAJ	-14 / -17	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
211930  +2  565  M7SDQ F4MVU R-11
211945 -10  564  YO9HP M7SDQ R-16
212015  -8  564  F4MVU M7SDQ RR73
212130  -6 1919  M7SDQ CT9/DF7EE -04
213845  -8  929  EY7BP M7SDQ IO83 (x2)
233515  -3 2839  M7SDQ IU8RFW JN70 (x4)
235745  -9  229  M7SDQ 4X1UF -12 (x2)
004030  -7 2536  M7SDQ F1PBZ +03 (x3)

80m

UTC    dB Audio  Message
225315 -16 1056  F6BHK M7SDQ -02 (x2)
203745  +2 2262  M7SDQ DK7ZT -25
203815  +1 2262  M7SDQ LA4NM JO49
203845  +8 2263  M7SDQ DK7ZT -25 (x3)
191845 -12 2647  RL2F M7SDQ IO83
214000 -10 1830  CQ M7SDQ IO83
214015 -16 1831  M7SDQ R4FDD LO33 (x3)
214200 -12 1830  R4FDD M7SDQ -20 (x3)

20m

UTC    dB Audio  Message
203400 -13 1643  F1PPH M7SDQ +07 (x2)
203530  -9 1631  CQ M7SDQ IO83 (x8)
204000  -1 1631  IX1ABE M7SDQ -25
204045 -10  462  M7SDQ IK4LZH JN54
204100  +5 1631  IX1ABE M7SDQ -25 (x3)

10m

UTC    dB Audio  Message
124945  -4 2644  M7SDQ F1PBZ +01

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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