G4ZFJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Locator transmitted in a decoded message: JO01

Receiver-side FT8 activity involving G4ZFJ, decoded by SO8OO in southeastern Poland. 958 related FT8 messages, 15 CQ messages, observed on 80m, 60m, 40m, 10m, across 70 UTC dates. Heard between 2026-05-25 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

958

Related messages

CQ messages

UTC dates heard

-5 dB

Mean decoder S/N

Bands

80m 60m 40m 10m

First seen: 2026-05-25
Last seen: 2026-08-23 19:58 UTC

Frequent QSO partners observed at SO8OO

Stations G4ZFJ worked most often, as logged from our receiver:

HA5LB · Hungary ×4 DL9KM · Fed. Rep. of Germany ×3 SQ8AA · Poland ×3 YB5QZ · Indonesia ×3 IW0FGX · Italy ×3 EA7LGM · Spain ×2 9J2FI · Zambia ×2 TM2WWA · France ×2 UB3ADO/P · European Russia ×2 IU7RQC · Italy ×2 G4UJS · England ×2 SQ5EXI · Poland ×2

Activity Heatmap

Locator transmitted by G4ZFJ

Approximate centre of JO01, decoded 2026-08-23 21:57 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	G4ZFJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 21:57	80m	+5 / -	RD9U	-11 / -11	4	✓ Closing observed
08-23 21:53	80m	+6 / -	PP5JR	- / -10	3	✓ Closing fragment
08-23 21:51	60m	-4 / -10	SP5GEO	-3 / -13	5	✓ Full exchange observed
08-23 21:49	60m	+2 / -	LA1HU	-4 / -3	4	✓ Full exchange observed
08-23 21:29	60m	+8 / -7	SQ5EXI	+3 / -3	5	✓ Full exchange observed
08-23 21:10	60m	+12 / +1	GM2OT	-12 / 0	4	✓ Full exchange observed
08-23 21:08	60m	+7 / +9	DL3RDO	-3 / -6	5	✓ Full exchange observed
08-23 21:05	60m	+8 / -	IZ8LDQ	- / -	2	Partial capture
08-23 20:55	80m	+4 / +1	OH0TS	-2 / -3	12	✓ Full exchange observed
08-23 20:48	60m	+2 / -	OE9DAI	-14 / -	4	✓ Closing observed
08-23 20:45	60m	+1 / -	US7UR	- / -	6	Partial capture
08-23 20:10	60m	-1 / -	OH1VESA	- / -	8	Partial capture
08-23 20:06	60m	+3 / -	IW2CXJ	- / -7	6	✓ Closing fragment
08-23 19:59	60m	-3 / 0	SM7WNM	-16 / +4	9	✓ Full exchange observed
08-23 19:52	60m	+2 / -6	LB6BK	-11 / -3	5	✓ Full exchange observed
08-23 19:50	60m	-4 / -	EA3JIJ	- / -	3	Partial capture
08-23 19:46	60m	-1 / -	OH1VESA	- / -	7	Partial capture
08-23 19:41	60m	-2 / -	HB0/HB9FXF	- / -	10	Partial capture
08-23 18:51	80m	-2 / -	II7MGXX	- / -	2	Partial capture
08-23 05:35	60m	-11 / -	ZL2AGY	- / -24	5	✓ Closing fragment
08-23 04:47	80m	- / -9	SP6FME	+16 / -	3	✓ Closing fragment
08-23 04:44	80m	-10 / -10	DL7ARV	-9 / -	5	✓ Closing observed
08-22 22:23	60m	-1 / -	DG4BZ	0 / -	5	✓ Full exchange observed
08-22 22:21	60m	-1 / +7	OZ1LGJ	-6 / +8	6	✓ Full exchange observed
08-22 22:17	80m	+7 / -4	<...>	+6 / -5	3	Partial capture
08-22 21:44	80m	+10 / -	EA3FR	- / -13	2	✓ Closing fragment
08-22 21:41	80m	+6 / -7	RY2B	-2 / -17	5	✓ Full exchange observed
08-22 21:37	80m	+6 / -	<...>	- / -14	4	Partial capture
08-22 21:32	60m	+2 / -	DL7UKM	- / -	2	Partial capture
08-22 21:28	60m	+1 / -	DK7NL	-6 / +10	7	✓ Full exchange observed
08-22 21:24	60m	0 / -	DL7UKM	- / -	3	Partial capture
08-22 21:19	80m	+9 / -18	UA0TP	-16 / -24	7	✓ Full exchange observed
08-22 21:14	80m	+6 / 0	UB3BGN	+4 / -17	5	✓ Full exchange observed
08-22 21:07	80m	+12 / -12	R0QBB/3	+15 / -1	2	Partial capture
08-22 21:01	60m	0 / +10	SQ1QAT	-10 / -5	6	✓ Full exchange observed
08-22 20:58	60m	-3 / +3	DF6QN	-3 / +7	5	✓ Full exchange observed
08-22 20:56	60m	0 / -1	OH2DOF	-16 / -5	7	✓ Full exchange observed
08-22 20:13	60m	0 / +7	LB9RE	-10 / +2	6	✓ Full exchange observed
08-22 19:49	60m	+1 / -	OE2JKN	- / -14	4	✓ Closing fragment
08-22 19:44	80m	-1 / -	UA4FET	- / -	4	Partial capture
08-22 19:37	60m	0 / -	OH/SM5MRW	- / +1	2	Partial capture
08-22 05:37	60m	-10 / -	LA5AKA	-14 / -6	4	✓ Closing observed
08-22 05:31	60m	-12 / -	W2JIT	- / -14	5	✓ Closing fragment
08-22 05:27	60m	-4 / -	KQ4RLN	- / -10	3	✓ Closing fragment
08-21 22:35	80m	-3 / -2	DL9ATW	+12 / +2	5	✓ Full exchange observed
08-21 22:33	80m	-3 / -7	R3MDA	-6 / -6	6	✓ Full exchange observed
08-21 22:31	80m	-1 / -5	R4FBT	-2 / -3	5	✓ Full exchange observed
08-21 22:29	80m	+10 / -7	RA9FUE	-17 / -8	5	✓ Full exchange observed
08-21 22:26	80m	0 / -	5A1AL	- / -12	5	✓ Closing fragment
08-21 21:19	80m	-2 / +3	G4UJS	-2 / -2	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
205915  +1  508  OH0TS G4ZFJ JO01 (x4)
210100  -3 1161  G4ZFJ OH0TS +01
210115  +5  508  OH0TS G4ZFJ R-03
210130  -2 1160  G4ZFJ OH0TS RR73
210145  +0  508  OH0TS G4ZFJ 73
215330  +6  480  PP5JR G4ZFJ JO01 (x3)
215715  +7 2576  RD9U G4ZFJ JO01 (x2)
215800 -11 2187  G4ZFJ RD9U RR73
215815  +0 2576  RD9U G4ZFJ 73

60m

UTC    dB Audio  Message
211045 +16  541  GM2OT G4ZFJ 73
212900  +8  541  SQ5EXI G4ZFJ JO01
212915  -6  541  G4ZFJ SQ5EXI -07
212930  +5  541  SQ5EXI G4ZFJ R-03
212945 +12  541  G4ZFJ SQ5EXI RR73
213000 +10  541  SQ5EXI G4ZFJ 73
214930  -6 1226  G4ZFJ LA1HU +15
214945  +1  541  LA1HU G4ZFJ R-03
215000  -2 1226  G4ZFJ LA1HU RR73
215015  +4  541  LA1HU G4ZFJ 73
215115 -10  541  SP5GEO G4ZFJ JO01
215130  -2  983  G4ZFJ SP5GEO -10
215145  -5  541  SP5GEO G4ZFJ R-13
215200  -4  983  G4ZFJ SP5GEO RR73
215215  +4  540  SP5GEO G4ZFJ 73

10m

UTC    dB Audio  Message
155930  -2  379  G4ZFJ C91RU -08
061200  +0 2464  G4ZFJ F4JRC -02 (x2)
185945 -10  634  PY4STO G4ZFJ JO01
073615 -11 2668  TK4BB G4ZFJ JO01 (x3)

40m

UTC    dB Audio  Message
212830  -8  604  <...> G4ZFJ JO01
212845  +4 2829  G4ZFJ GB198KHZ +08
212900  -4  604  <...> G4ZFJ R+17
233700 -10 2513  N2OB G4ZFJ 4D DX (x5)
055100 -11 2522  OA4ENG G4ZFJ R-16
055245 -14 2521  T48FCR G4ZFJ JO01 (x4)
061445  -3 2520  G4ZFJ UT4PA KO20 (x2)

20m

UTC    dB Audio  Message
060615 -12  708  VK5JR G4ZFJ JO01 (x3)
060745 -10  708  RA3ZDU G4ZFJ -09 (x2)
061100  -8 2400  8P6GE G4ZFJ JO01 (x3)
230915 +15  655  D4OL G4ZFJ JO01 (x2)
175315  -8 2678  TJ1GD/P G4ZFJ JO01
160600 -14 3141  OX3LX G4ZFJ JO01 (x4)

Decoder S/N history by band

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