G4CFS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Locator transmitted in a decoded message: IO91

Receiver-side FT8 activity involving G4CFS, decoded by SO8OO in southeastern Poland. 749 related FT8 messages, 244 CQ messages, observed on 40m, 20m, 10m, across 60 UTC dates. Heard between 2026-05-26 and 2026-08-23.

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

749

Related messages

244

CQ messages

UTC dates heard

-4 dB

Mean decoder S/N

Bands

40m 20m 10m

First seen: 2026-05-26
Last seen: 2026-08-23 19:20 UTC

Frequent QSO partners observed at SO8OO

Stations G4CFS worked most often, as logged from our receiver:

DG3VB · Fed. Rep. of Germany ×2 IK7NXU · Italy ×2 DF8RU · Fed. Rep. of Germany ×2 9A3TF · Croatia ×2 IK4LZH · Italy ×2 UR5WCS · Ukraine ×2 RV6F · European Russia ×2 DL9KM · Fed. Rep. of Germany ×2 S55A · Slovenia ×2 DL7KI · Fed. Rep. of Germany 9A3SM · Croatia JF0CSK · Japan

Activity Heatmap

Locator transmitted by G4CFS

Approximate centre of IO91, decoded 2026-08-23 21:20 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	G4CFS S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 21:14	40m	-7 / +6	F5SJC	-7 / -3	7	✓ Full exchange observed
08-23 21:14	40m	-6 / -	ON4MAP	-13 / -	2	✓ Closing observed
08-23 21:11	40m	-4 / -	DL9KM	-4 / -8	5	✓ Closing observed
08-23 21:10	40m	-4 / -2	M8MFU	-10 / -15	4	✓ Full exchange observed
08-23 21:08	40m	-3 / -	PD3JW	- / -8	2	✓ Closing fragment
08-23 21:07	40m	-4 / -	RY3F	- / -3	3	Partial capture
08-23 21:05	40m	-4 / -4	OK7TB	+4 / -7	4	✓ Full exchange observed
08-23 21:02	40m	-4 / -14	UT8SQ	-11 / -8	5	✓ Full exchange observed
08-23 21:01	40m	-3 / -	OZ5AGJ	-4 / +1	5	✓ Full exchange observed
08-23 20:56	40m	-3 / -	EA8J	- / -10	3	✓ Closing fragment
08-23 20:54	40m	-4 / -	<...>	- / -4	2	Partial capture
08-23 20:52	40m	0 / +2	DA1EA	+2 / -3	4	✓ Full exchange observed
08-23 20:42	40m	+2 / -	BG2GWN	- / -	9	Partial capture
08-23 20:34	40m	+2 / -	VJ6X	- / -23	4	✓ Closing fragment
08-23 08:50	20m	- / -	F4AWT	+16 / -	2	Partial capture
08-23 08:50	20m	0 / -	PD9FLX	+3 / -19	4	Partial capture
08-22 21:01	20m	+5 / -	VJ2Q	- / -	6	Partial capture
08-22 20:55	20m	+2 / -	RX9ABI	- / -11	4	✓ Closing fragment
08-22 20:46	20m	+5 / -	JF2HPA	- / -16	3	✓ Closing fragment
08-22 20:40	20m	+1 / -5	CX6TU	0 / -15	6	✓ Full exchange observed
08-22 20:38	20m	-1 / -16	BU2FW	-7 / -16	5	✓ Full exchange observed
08-22 11:03	20m	-2 / -	HA2NA	- / -	29	Partial capture
08-22 10:51	20m	-7 / -	HA2NA	- / -	19	Partial capture
08-22 06:40	20m	0 / -	DL1EHF	-15 / -2	5	✓ Closing observed
08-22 06:24	20m	-1 / -	XQ1KK	- / -	11	Partial capture
08-21 12:36	20m	- / -7	DL5LB	+4 / -	2	✓ Closing fragment
08-21 12:24	20m	- / -10	DK0PB	-22 / -	2	✓ Closing fragment
08-21 08:40	20m	- / -8	RA3XFR	-10 / -	2	✓ Closing fragment
08-20 07:49	20m	-7 / -	F6DZU	- / -	9	Partial capture
08-20 06:53	20m	-7 / -	ZL4TT	- / -20	6	Partial capture
08-20 06:47	20m	0 / -	F5SFT	- / -	4	Partial capture
08-17 07:12	20m	-10 / -	OE8PPL	- / -	17	Partial capture
08-17 07:01	20m	-13 / -	IW0RLC	- / -14	3	✓ Closing fragment
08-17 06:49	20m	-3 / -	HK3YL	- / -	15	Partial capture
08-17 06:47	20m	-12 / -	OZ2PJ	- / -8	2	✓ Closing fragment
08-17 06:38	20m	-7 / -	VK7AC	- / -	4	Partial capture
08-15 08:51	20m	+4 / -	LY5O	- / -	4	Partial capture
08-15 07:44	20m	+2 / -	R9UBE	- / -	5	Partial capture
08-15 07:34	20m	+5 / -	OH3MB	- / -	19	Partial capture
08-15 07:21	20m	-8 / -	UA3DPM	- / -	5	Partial capture
08-15 07:14	20m	-7 / +5	IK4HLQ	-19 / -2	5	✓ Full exchange observed
08-14 09:23	20m	-5 / -	F4NBB	- / -	6	Partial capture
08-14 09:06	20m	-3 / -	EG5DX	- / -	3	Partial capture
08-14 09:05	20m	-2 / -	OK2QP	- / -13	2	✓ Closing fragment
08-12 08:48	20m	- / -7	S57DEV	-2 / -	2	✓ Closing fragment
08-11 12:40	40m	- / -4	DL8NW	-16 / -	2	✓ Closing fragment
08-11 10:52	20m	-4 / -	OH7MFO	- / -	2	Partial capture
08-11 10:48	20m	-4 / -3	DH2RL	-10 / -	4	✓ Closing observed
08-11 10:29	20m	-3 / -	EA3RT	- / -6	2	✓ Closing fragment
08-11 09:01	20m	-4 / -20	R9LY	-15 / -12	9	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
211415  -6 2276  G4CFS F5SJC JN05
211415 -13  294  G4CFS ON4MAP 73
211500  -6 2275  F5SJC G4CFS -03
211600  -7 2275  CQ G4CFS IO91
211615  -5 2276  G4CFS F5SJC JN05
211630  -7 2275  F5SJC G4CFS -02
211645  -9 2276  G4CFS F5SJC R+06
211700  -8 2275  F5SJC G4CFS RR73
211715  -8 2276  G4CFS F5SJC 73
211730  -9 2275  CQ G4CFS IO91 (x6)

20m

UTC    dB Audio  Message
084815  -8 2805  N5XZ G4CFS IO91
084945 -12 2805  CQ G4CFS IO91 (x2)
085030 +16 2806  G4CFS F4AWT JN24
085030  +3 2675  G4CFS PD9FLX JO22
085045  -2 2805  PD9FLX G4CFS -19
085100 +15 2806  G4CFS F4AWT JN24
085115  -2 2805  PD9FLX G4CFS -19 (x2)
085215  +2 2805  CQ G4CFS IO91 (x5)
085830 +13 2804  <...> G4CFS IO91

10m

UTC    dB Audio  Message
122145 -13 3006  II3WWA G4CFS R+01
110330 -16 2314  G4CFS IW1PPB -19 (x3)
115945 -10 2655  G4CFS OK1MAE +12
164945 -13 1028  PY4BSC G4CFS IO91 (x2)
174530 -14  766  PD1B G4CFS 73
174745 -14  766  OZ1AXG G4CFS IO91
180115 -12  768  DG4BRT G4CFS IO91
180415 -13  766  PD0PHA G4CFS R-02
180545 -13  766  HB9EKJ G4CFS R-05
180930 -13  766  F1BAY G4CFS R-01
181115 -13  766  IU5QTD G4CFS R-10
192730  -3 2802  DL8DUL G4CFS IO91

Decoder S/N history by band

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