7M4RRM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan

Receiver-side FT8 activity involving 7M4RRM, decoded by SO8OO in southeastern Poland. 70 related FT8 messages, 4 CQ messages, observed on 80m, 40m, 20m, across 16 UTC dates. Heard between 2026-05-18 and 2026-08-13.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

Related messages

CQ messages

UTC dates heard

-5 dB

Mean decoder S/N

Bands

80m 20m 40m

First seen: 2026-05-18
Last seen: 2026-08-13 14:36 UTC

Frequent QSO partners observed at SO8OO

Stations 7M4RRM worked most often, as logged from our receiver:

YO2MD · Romania YU7ZZ · Serbia YL2KF · Latvia BG5CNL · China IQ4JO · Italy IZ0MIT · Italy IQ8PZ · Italy BI8SCC · China HB9EFK · Switzerland DK2LG · Fed. Rep. of Germany R3DHP · European Russia DK8RE · Fed. Rep. of Germany

Activity Heatmap

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	7M4RRM S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-13 16:36	80m	- / -19	R4IK	-14 / -	2	✓ Closing fragment
07-17 21:26	20m	- / -14	YO4DWD	-12 / -	2	Partial capture
07-07 21:16	20m	- / -18	DC5IMM	-8 / -	5	✓ Closing fragment
07-06 21:04	20m	- / -13	DK2LG	0 / -	4	✓ Closing fragment
06-23 19:32	40m	- / -18	YL3CU	-4 / -	2	✓ Closing fragment
06-16 19:19	20m	- / -	IW9HPG	+20 / -	3	Partial capture
06-16 19:17	20m	-18 / -	DK8RE	- / -	2	✓ Closing fragment
06-14 20:25	20m	- / -11	IQ8PZ	-11 / -	3	✓ Closing fragment
06-13 20:17	20m	- / -	IV3JRY	+2 / -	2	Partial capture
06-10 23:59	20m	- / -17	YL2KF	-12 / -	2	✓ Closing fragment
06-04 23:31	20m	- / -18	BI8SCC	-16 / -	2	✓ Closing fragment
06-02 21:00	20m	- / -11	IQ4JO	+2 / -	2	✓ Closing fragment
06-02 20:50	20m	- / -14	M0BEW	-1 / -	4	Partial capture
06-01 21:21	20m	- / -24	A61CK	-6 / -	6	Partial capture
05-30 19:04	20m	- / -16	RA3ZH	-1 / -	5	✓ Closing fragment
05-30 18:47	40m	- / -16	TA9AAR	-6 / -	2	Partial capture
05-30 18:26	20m	-14 / -	SQ2WSZ	- / -13	2	Partial capture
05-30 18:08	20m	- / -20	R3DHP	-6 / -	2	✓ Closing fragment
05-30 18:04	20m	-10 / -	LU5FF	- / -2	2	✓ Closing fragment
05-30 18:02	20m	-9 / -10	TA3TK	-10 / -14	3	Partial capture
05-30 18:00	20m	-13 / -	EP2AES	- / -23	3	Partial capture
05-30 17:58	20m	-16 / -	A92AE	- / -13	2	Partial capture
05-30 17:56	20m	-16 / -	SV9KNA	- / -18	2	Partial capture
05-30 17:46	20m	-18 / -	Z34CMF	- / -21	2	Partial capture
05-30 17:45	20m	-14 / -	IS0KNG	- / -17	2	Partial capture
05-30 17:43	20m	-16 / -25	R4PEX	-20 / -15	3	✓ Full exchange observed
05-30 17:42	20m	-18 / -	BD8FDL	- / -4	2	✓ Closing fragment
05-30 17:36	20m	-19 / -	YU7ZZ	- / -16	2	✓ Closing fragment
05-29 21:14	20m	-10 / -12	HB9EFK	+16 / -10	4	✓ Full exchange observed
05-29 21:07	20m	-13 / -	UX5UO	-15 / -5	3	✓ Closing observed
05-29 21:03	20m	- / +2	JF1FAO	-5 / -	3	✓ Closing fragment
05-29 20:39	20m	-15 / -	BG5CNL	- / -14	2	✓ Closing fragment
05-29 20:37	20m	-15 / -	GB9SOS	- / -18	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
163600 -15  942  7M4RRM R4IK R-19 (x2)

20m

UTC    dB Audio  Message
191945 +17 1051  7M4RRM IW9HPG JM78 (x3)
210430  -5 3139  7M4RRM DK2LG JO53 (x4)
211630  -7 1110  7M4RRM DC5IMM JO60 (x5)
212645 -22 2079  7M4RRM TF3VS HP94
212645 -10 1709  7M4RRM YO4DWD -14 (x2)

40m

UTC    dB Audio  Message
184700  -5 1810  7M4RRM TA9AAR R-16 (x2)
193215  -3 2384  7M4RRM YL3CU R-18 (x2)
193415 -10 2003  7M4RRM UB6C KN94
193415  +2 2893  7M4RRM IQ4JO JN63
193715 -11  674  7M4RRM R6DJR RR73

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.