ON4FF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Locator transmitted in a decoded message: JO20

Receiver-side FT8 activity involving ON4FF, decoded by SO8OO in southeastern Poland. 99 related FT8 messages, 9 CQ messages, observed on 40m, 20m, 10m, across 6 UTC dates. Heard between 2026-06-03 and 2026-08-22.

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

-8 dB

Mean decoder S/N

Bands

20m 40m 10m

First seen: 2026-06-03
Last seen: 2026-08-22 20:47 UTC

Frequent QSO partners observed at SO8OO

Stations ON4FF worked most often, as logged from our receiver:

F5RRS · France ×2 TL8GD · Central African Republic OZ5AGJ · Denmark JA4FDZ · Japan BI6PWL · China JA0LFV · Japan IW2DNI · Italy JA7BXS · Japan OA4ENG · Peru JA5XAE · Japan VK3TZ · Australia JY5IB · Jordan

Activity Heatmap

Locator transmitted by ON4FF

Approximate centre of JO20, decoded 2026-08-22 22:45 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	ON4FF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 22:46	40m	- / +3	DK7ZT	-3 / -	3	Partial capture
08-22 22:45	40m	+22 / -	VK6BAD	- / -10	3	✓ Closing fragment
08-22 22:42	40m	+16 / -	JY5IB	- / -8	3	✓ Closing fragment
08-22 22:37	40m	+15 / -	5A1AL	- / -	6	Partial capture
08-22 22:32	40m	- / -	DL9KM	-8 / -	5	Partial capture
08-22 22:30	40m	+11 / -	OA4ENG	- / -18	6	✓ Closing fragment
08-20 21:16	20m	+1 / -14	TA1GRH	-20 / -15	12	Partial capture
08-18 14:54	20m	-19 / -	OJ0JR	- / -	7	Partial capture
08-16 20:31	40m	-12 / -	JA4FDZ	- / -11	6	✓ Closing fragment
08-16 20:29	40m	- / -12	UA9CR	-9 / -	4	Partial capture
08-16 20:27	40m	-10 / -	JR3NZC	- / -11	2	Partial capture
08-16 20:25	40m	-9 / -	F5RRS	-17 / -	2	✓ Closing observed
08-16 20:21	20m	- / -	DL1R	+1 / -	9	Partial capture
08-16 20:20	40m	-10 / -	BI6PWL	- / -22	2	✓ Closing fragment
08-16 20:08	20m	- / -2	M0PBG	+6 / -	2	✓ Closing fragment
08-16 20:08	20m	- / -	DL3RAJ	-16 / -	6	Partial capture
08-16 20:03	40m	-16 / -	M8ROE	- / -17	2	Partial capture
08-16 20:02	20m	- / -7	R6FX	0 / -	2	Partial capture
08-16 20:02	40m	-16 / -	JA0LFV	- / -14	3	Partial capture
08-16 20:02	40m	- / -	DK7ZT	-17 / -	2	Partial capture
08-16 20:01	20m	-11 / -9	CT1BFP	-14 / -8	7	Partial capture
08-16 19:58	20m	- / -11	DL3RAJ	-14 / -	3	Partial capture
07-29 21:04	20m	- / -18	JA5XAE	-14 / -	3	✓ Closing fragment
07-29 21:01	20m	- / -9	F4NKF	-15 / -	2	Partial capture
07-29 20:40	20m	- / -12	F5RRS	-4 / -	3	✓ Closing fragment
07-29 20:08	20m	- / -	MW7RHR	-1 / -	3	Partial capture
07-29 19:55	20m	- / -	EA1IOK	-6 / -	2	Partial capture
07-29 19:54	20m	- / -11	IW2DNI	+4 / -	3	✓ Closing fragment
07-29 19:51	20m	- / -7	JA7BXS	-14 / -	2	✓ Closing fragment
07-29 19:49	20m	- / -	F4BJN	-4 / -	5	Partial capture
07-29 19:47	20m	- / -16	RN6MA	-5 / -	3	Partial capture
07-29 19:43	20m	- / -14	RN6MA	+10 / -	3	Partial capture
07-29 19:43	20m	- / -7	RZ4FWA	-16 / -	2	Partial capture
06-19 21:37	40m	+16 / -	VK3TZ	- / -14	9	✓ Closing fragment
06-19 21:15	40m	+15 / -	VK5PO/P	- / -	25	Partial capture
06-19 21:13	40m	+20 / -	5Z4VJ	- / -	2	Partial capture
06-03 19:26	20m	-12 / -12	JA0LFV	-19 / -8	3	✓ Full exchange observed
06-03 19:18	20m	-11 / -	VK5PO/P	- / -11	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
223730  +8 2801  5A1AL ON4FF JO20 (x6)
224215 +15 2801  JY5IB ON4FF JO20 (x3)
224515 +22 2801  VK6BAD ON4FF JO20 (x3)
224630  -1 1905  ON4FF DK7ZT +03 (x3)

20m

UTC    dB Audio  Message
145615 -20 1383  OJ0JR ON4FF JO20 (x3)
211600  +3  713  TA1GRH ON4FF JO20
211615 -18 2400  ON4FF TA1GRH -14
211630  +4  712  TA1GRH ON4FF R-15 (x2)
211715 -19 2400  ON4FF TA1GRH -14
211730  +1  713  TA1GRH ON4FF R-25
211745 -22 2400  ON4FF TA1GRH -14
211800  +1  713  TA1GRH ON4FF R-18 (x5)

10m

UTC    dB Audio  Message
181900  -7  710  ON4FF EA7HS -14
184445  -1 2732  ON4FF F1PBZ +00

Decoder S/N history by band

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