ON4AOI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Locator transmitted in a decoded message: JO21

Receiver-side FT8 activity involving ON4AOI, decoded by SO8OO in southeastern Poland. 4,053 related FT8 messages, 3,425 CQ messages, observed on 40m, 20m, across 8 UTC dates. Heard between 2026-07-13 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

4,053

Related messages

3,425

CQ messages

UTC dates heard

-1 dB

Mean decoder S/N

Bands

40m 20m

First seen: 2026-07-13
Last seen: 2026-08-23 16:36 UTC

Frequent QSO partners observed at SO8OO

Stations ON4AOI worked most often, as logged from our receiver:

HA1ZW · Hungary ×3 SA3KAK · Sweden ×3 PD2WL · Netherlands ×3 UR5WCS · Ukraine ×3 EA4DZR · Spain ×3 SM5MEK · Sweden ×2 DJ7LWD · Fed. Rep. of Germany ×2 RA4CEH · European Russia ×2 PD8XXX · Netherlands ×2 DL8MAK/P · Fed. Rep. of Germany ×2 SQ8AA · Poland ×2 CT2HEX · Portugal ×2

Activity Heatmap

Locator transmitted by ON4AOI

Approximate centre of JO21, decoded 2026-08-23 18:36 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	ON4AOI S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 18:37	40m	+8 / -	JA8CJY	- / -17	3	✓ Closing fragment
08-23 18:31	40m	+10 / -	DG1JP	- / -14	2	✓ Closing fragment
08-23 18:29	40m	+10 / -	ZL2NU	- / -18	4	Partial capture
08-23 18:21	40m	+14 / -	<...>	- / -18	4	Partial capture
08-23 18:03	20m	+4 / -	DG2EBG	- / -13	14	Partial capture
08-23 18:00	20m	- / +2	CT1CIH	+2 / -	3	✓ Closing fragment
08-23 17:59	20m	-8 / -	DG5LP	- / -17	2	✓ Closing fragment
08-23 17:47	20m	+7 / -	JA4LKY	- / -16	3	✓ Closing fragment
08-23 17:45	20m	+16 / -	Z21ML	- / -20	2	✓ Closing fragment
08-23 17:41	20m	+24 / +4	CS8ABF	+2 / -9	4	✓ Full exchange observed
08-23 17:31	20m	-5 / -	HF2RR	- / -16	4	Partial capture
08-23 17:21	20m	-11 / +4	RT4A	+2 / -	3	✓ Closing observed
08-23 17:12	20m	- / +9	R6YG	+14 / -	3	✓ Closing fragment
08-23 16:52	20m	-12 / -2	JR1UTC	-18 / -4	4	✓ Full exchange observed
08-23 16:47	20m	- / -20	BG8PN	-12 / -	2	✓ Closing fragment
08-23 16:44	20m	- / -	BG8PN	-15 / -	2	Partial capture
08-23 16:22	20m	+2 / -4	OZ5YN	-8 / -10	4	✓ Full exchange observed
08-23 16:15	20m	0 / -	BH2XSM	- / -13	2	✓ Closing fragment
08-23 16:10	20m	+2 / -3	UW5EMC	-5 / -5	5	✓ Full exchange observed
08-23 15:55	20m	+4 / -	BG7MOM	- / -3	3	Partial capture
08-23 15:51	20m	-4 / -15	PD2WL	-10 / -	3	✓ Closing observed
08-23 15:49	20m	-2 / -	RZ9WA	- / -11	2	✓ Closing fragment
08-23 15:41	20m	-1 / -15	PD2WL	-14 / -19	15	✓ Full exchange observed
08-23 15:36	20m	+2 / -18	MW7GQB	+6 / -15	5	✓ Full exchange observed
08-23 15:30	20m	-3 / -	YC1GDF	- / -15	2	✓ Closing fragment
08-23 15:28	20m	+4 / -	JA1SKG	- / -16	2	✓ Closing fragment
08-23 15:27	20m	+10 / -	UN0PA	- / -11	2	✓ Closing fragment
08-23 15:23	20m	+15 / -	DL6AZ	- / -10	3	✓ Closing fragment
08-23 15:20	20m	+5 / -10	YO4KMU	-10 / -11	5	✓ Full exchange observed
08-23 15:16	20m	0 / -	9W2SQ	- / +1	2	✓ Closing fragment
08-23 15:12	20m	+1 / -	R9HFA	- / -11	2	✓ Closing fragment
08-23 15:08	20m	+8 / -	PD5N	-5 / -15	4	✓ Closing observed
08-23 15:08	20m	0 / -	UN6PC	- / -10	2	✓ Closing fragment
08-23 15:05	20m	0 / -	IZ5YBN	- / +2	2	✓ Closing fragment
08-23 15:01	20m	0 / -	LY2BAA	- / +1	2	✓ Closing fragment
08-23 14:58	20m	+2 / -	JA8QO	- / -18	3	✓ Closing fragment
08-23 14:56	20m	+3 / -	R9UIQ	- / -15	2	✓ Closing fragment
08-23 14:50	20m	-4 / -8	R6DBT	-12 / -13	6	✓ Full exchange observed
08-23 14:38	20m	0 / 0	R3IX	-18 / -7	4	✓ Full exchange observed
08-23 14:32	20m	+5 / -	IW1QBR	-12 / -12	3	✓ Closing observed
08-23 14:28	20m	+2 / -4	G0OFD	-2 / -5	4	✓ Full exchange observed
08-23 14:22	20m	+9 / -	DL7SLB	- / -2	2	✓ Closing fragment
08-23 14:22	20m	+8 / -19	DL1NRC	-7 / +4	9	✓ Full exchange observed
08-23 14:17	20m	-3 / -	I8JPO	+3 / +7	5	✓ Closing observed
08-23 14:17	20m	+6 / -11	OE5ABL	+3 / -11	3	✓ Full exchange observed
08-23 14:14	20m	+7 / -	BH1PFJ	- / -12	2	✓ Closing fragment
08-23 14:12	20m	+4 / -	M0PFX	- / +1	2	✓ Closing fragment
08-23 14:09	20m	+8 / -	RN4AZ	-8 / -10	3	✓ Closing observed
08-23 14:06	20m	+12 / -	UA9UFG	- / -11	2	✓ Closing fragment
08-23 14:03	20m	+5 / -	IN3JRZ	- / -10	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
183030 +11  762  ZL2NU ON4AOI RRR
183100 +10  762  CQ JA ON4AOI JO21
183130 +10  762  DG1JP ON4AOI -14 (x2)
183230  +8  762  CQ JA ON4AOI JO21 (x8)
183730  +6  762  JA8CJY ON4AOI -17 (x3)

20m

UTC    dB Audio  Message
181100 +22  536  CQ ON4AOI JO21 (x12)
181645 -11  534  ON4AOI KJ1R FN32
181700 +21  536  CQ ON4AOI JO21 (x2)

Decoder S/N history by band

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