GM4CXF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Scotland Locator transmitted in a decoded message: IO75

Receiver-side FT8 activity involving GM4CXF, decoded by SO8OO in southeastern Poland. 316 related FT8 messages, observed on 40m, 10m, across 39 UTC dates. Heard between 2026-05-21 and 2026-08-18.

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

316

Related messages

CQ messages

UTC dates heard

-9 dB

Mean decoder S/N

Bands

40m 10m

First seen: 2026-05-21
Last seen: 2026-08-18 18:59 UTC

Frequent QSO partners observed at SO8OO

Stations GM4CXF worked most often, as logged from our receiver:

SP2OSA · Poland ×2 OK1DOL · Czech Republic ×2 DK1TBL · Fed. Rep. of Germany ×2 DK5UR · Fed. Rep. of Germany ×2 M7ORI · England M0PBF · England HB9HBY · Switzerland TJ1GD · Cameroon PA2WDR/P · Netherlands OZ0JX · Denmark LA1WWA · Norway PA8S · Netherlands

Activity Heatmap

Locator transmitted by GM4CXF

Approximate centre of IO75, decoded 2026-08-21 22:04 UTC. A transmitted locator is not proof of the operator's permanent location.

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	GM4CXF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-18 20:59	40m	- / -9	SP1LON	-15 / -	2	✓ Closing fragment
08-17 21:42	40m	-13 / -	MM0CWJ	- / -	3	Partial capture
08-17 21:34	40m	-11 / -	M7LBT	- / -	4	Partial capture
08-17 19:42	40m	-12 / -	TA3NK	- / -8	4	✓ Closing fragment
08-17 19:40	40m	-11 / -	G0VAX	- / -	2	✓ Closing fragment
08-17 19:23	40m	-13 / -	EA8AT	- / -	3	Partial capture
08-17 19:21	40m	- / -15	OE7LVI	-14 / -	2	✓ Closing fragment
08-17 19:19	40m	-19 / -	OR1A	- / +5	2	Partial capture
08-17 19:11	40m	-7 / -	PD0RKO	- / -	2	Partial capture
08-13 23:00	40m	-13 / -	VA2MM	- / -	4	Partial capture
08-08 16:51	40m	- / -	LY1DY	-9 / -	3	Partial capture
08-07 23:34	40m	-7 / -	CU2JX	- / -	2	Partial capture
08-07 23:24	40m	-17 / -10	KE4EB	-18 / -	3	✓ Closing observed
08-07 23:21	40m	-14 / -	9K2GR	-19 / -4	4	✓ Closing observed
08-07 23:17	40m	-15 / -7	9K2GR	-19 / -	4	Partial capture
08-07 23:06	40m	-19 / -	EA4ILE	- / +5	2	✓ Closing fragment
08-07 22:55	40m	-20 / -	CR7BRV	- / -	2	✓ Closing fragment
08-07 22:53	40m	-16 / -	G7NPW	-18 / +7	2	Partial capture
08-07 22:52	40m	-17 / -	DD7MK	-7 / -	2	✓ Closing observed
08-07 22:50	40m	-18 / -4	<...>	-3 / -	3	Partial capture
08-06 22:14	40m	-5 / -	M0GLT	- / -	2	✓ Closing fragment
08-06 20:20	40m	-7 / -	VK6BAD	- / -17	7	✓ Closing fragment
08-04 17:34	40m	- / -	RV3YN	-16 / -	2	✓ Closing fragment
08-01 22:03	40m	-10 / -	VK6BAD	- / -	3	Partial capture
07-30 22:30	40m	- / -2	DL9KM	-5 / -	6	✓ Closing fragment
07-30 22:22	40m	-10 / -	VK6DW	- / -24	2	Partial capture
07-30 22:16	40m	-12 / -	YM4KT	- / -18	2	✓ Closing fragment
07-30 22:14	40m	-9 / +5	R70OBN	-4 / -	5	✓ Full exchange observed
07-30 22:12	40m	-13 / -14	OZ/DG1ATN	-16 / +6	5	Partial capture
07-30 22:10	40m	-13 / -	EA2DR	- / +8	2	✓ Closing fragment
07-30 22:05	40m	-14 / -	LW2EKY	- / -	2	Partial capture
07-30 22:02	40m	-12 / -10	RC6O	-6 / -5	5	✓ Full exchange observed
07-30 22:00	40m	-10 / -	M0EGG	- / +7	3	✓ Closing fragment
07-28 19:09	40m	- / -3	RA4FW	-11 / -	3	✓ Closing fragment
07-28 19:08	40m	-13 / -	LA1HW	- / -	2	Partial capture
07-24 22:12	40m	-6 / -	TM74TFR	- / -1	2	Partial capture
07-24 22:08	40m	-11 / -	M6GPH	-12 / -	3	✓ Closing observed
07-23 21:41	40m	- / -7	RA5CO	-6 / -	3	✓ Closing fragment
07-23 21:37	40m	- / -3	IU2UEH	-15 / -	3	Partial capture
07-23 21:36	40m	- / -5	R7CD	+2 / -	2	✓ Closing fragment
07-23 19:05	40m	-16 / -	RA3SI	- / +2	2	✓ Closing fragment
07-21 22:07	40m	-15 / -	HS0ZKB	- / -	8	Partial capture
07-21 22:02	40m	-4 / -13	UA1WFH	-4 / -	3	✓ Closing observed
07-21 21:59	40m	- / -	LA6VQ	-20 / -	2	✓ Closing fragment
07-20 22:26	40m	-18 / -	LW5DR	- / -	5	Partial capture
07-20 21:55	40m	-11 / -	BI8AWT	- / -	7	Partial capture
07-19 22:43	40m	-20 / -	CE2SV	- / -4	2	Partial capture
07-19 22:39	40m	- / -4	IT9GJK/P	-20 / -	2	✓ Closing fragment
07-18 23:00	40m	-18 / -	OA4ENG	- / -10	3	✓ Closing fragment
07-17 22:28	40m	-14 / -	LB0OG/P	- / +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
194415 -13  639  TA3NK GM4CXF R-08 (x2)
195045 -11  639  PD0DEX GM4CXF IO75
213445 -11  641  M7LBT GM4CXF IO75 (x4)
213715  -9  641  F5SJC GM4CXF IO75
214215 -13  990  MM0CWJ GM4CXF IO75 (x3)
214700 -16  990  M8WTW GM4CXF R+11
205900 -15 2315  GM4CXF SP1LON R-09 (x2)
220430  -3 1988  RV0AAE GM4CXF IO75

10m

UTC    dB Audio  Message
134830  -4 2326  GM4CXF OZ9WRH -12 (x2)
140100  -9 1189  GM4CXF DN9SGE JO42
144645  -1 2760  GM4CXF DO1NUE -05 (x4)

Decoder S/N history by band

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