ON4CVL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Locator transmitted in a decoded message: JO10

Receiver-side FT8 activity involving ON4CVL, decoded by SO8OO in southeastern Poland. 222 related FT8 messages, 9 CQ messages, observed on 80m, 40m, 20m, 10m, across 30 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

222

Related messages

CQ messages

UTC dates heard

-9 dB

Mean decoder S/N

Bands

80m 20m 40m 10m

First seen: 2026-05-25
Last seen: 2026-08-23 01:13 UTC

Frequent QSO partners observed at SO8OO

Stations ON4CVL worked most often, as logged from our receiver:

SQ9M · Poland ×2 IQ0VT · Italy ×2 F5MYK · France TM8WWA · France DL0IPA · Fed. Rep. of Germany HG3FMZ · Hungary DH0HD · Fed. Rep. of Germany F4JJA · France DO9BAU · Fed. Rep. of Germany DA0WWA · Fed. Rep. of Germany CT1END/P · Portugal DL2FM · Fed. Rep. of Germany

Activity Heatmap

Locator transmitted by ON4CVL

Approximate centre of JO10, decoded 2026-08-23 03:13 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	ON4CVL S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 03:09	80m	- / -	G8OO	+6 / -	9	Partial capture
08-23 03:06	80m	-24 / -7	IQ4JO	+7 / -9	5	✓ Full exchange observed
08-23 03:05	80m	-24 / -21	S52UF	+4 / -19	8	Partial capture
08-23 03:04	80m	- / -	DG4BZ	0 / -	2	Partial capture
08-23 03:00	80m	-18 / -	DO1MER	+4 / +5	3	Partial capture
08-23 03:00	80m	-22 / -8	TF3VS	+4 / -4	5	✓ Full exchange observed
08-23 02:54	80m	-2 / -15	TA3NE	+6 / -14	7	✓ Full exchange observed
08-23 02:53	80m	-8 / +7	PA4G	-2 / +6	5	✓ Full exchange observed
08-23 02:47	80m	-11 / -16	EA7LIC	-12 / -8	5	✓ Full exchange observed
08-23 02:44	80m	-5 / -7	OK1HEH	0 / -8	6	✓ Full exchange observed
08-23 02:42	80m	-1 / -8	DO9BAU	+8 / +3	5	✓ Full exchange observed
08-22 13:32	20m	-8 / -	AO25FDM	- / -3	2	Partial capture
08-22 12:55	40m	- / -11	DL2USR	-12 / -	6	✓ Closing fragment
08-22 07:07	20m	-7 / -	OK1VCB	- / -5	3	✓ Closing fragment
08-21 11:51	20m	-18 / -	EC3A	- / -14	2	✓ Closing fragment
08-21 06:42	40m	- / -12	SP1ZMO	-8 / -	5	✓ Closing fragment
08-20 12:50	20m	0 / -	CT1END/P	- / -12	3	✓ Closing fragment
08-19 07:26	40m	- / -16	SP5ROM	-22 / -	2	✓ Closing fragment
08-17 16:40	40m	- / -16	OE3RWR	-6 / -	2	✓ Closing fragment
08-17 06:41	20m	-22 / -	SV0LS	- / -	4	Partial capture
08-17 04:22	80m	-24 / -	GB8VJ	- / -	4	Partial capture
08-17 04:20	80m	- / -	OZ1HYM	-18 / -	2	Partial capture
08-17 04:19	80m	-24 / +4	DO2NM	0 / -3	5	✓ Full exchange observed
08-17 04:18	80m	-24 / -13	DO1FFO	-8 / -15	2	Partial capture
08-16 16:13	40m	- / +1	OK3NKO/P	-16 / -	3	✓ Closing fragment
08-16 16:11	40m	- / -	S55OO	-11 / -	5	Partial capture
08-16 15:09	40m	- / -16	HG3FMZ	-15 / -	3	✓ Closing fragment
08-12 16:03	20m	- / +6	CR5VP	-22 / -	2	✓ Closing fragment
08-10 18:41	10m	- / -	CT3MD	-8 / -	3	Partial capture
08-10 01:32	80m	-2 / -2	DL1UDO	0 / +2	5	✓ Full exchange observed
08-10 01:10	80m	-3 / -	IU1LEB	-10 / -11	3	✓ Closing observed
08-09 18:58	80m	-8 / +1	G4YKQ	-10 / +10	5	✓ Full exchange observed
08-09 18:24	40m	- / -16	LY2MM	-14 / -	2	✓ Closing fragment
08-09 13:57	40m	- / -15	SQ9M	-16 / -	2	✓ Closing fragment
08-09 13:00	20m	-24 / -	G3BAM	- / -	2	Partial capture
08-08 18:00	40m	-13 / -	PD0IFI	-8 / +9	7	Partial capture
08-08 17:59	40m	- / -10	OE3SGU	-8 / -	2	✓ Closing fragment
08-08 17:08	20m	-2 / -	F1LPT/P	- / -	3	Partial capture
08-08 17:04	40m	- / -	DL5ML	-20 / -	2	✓ Closing fragment
08-08 14:53	10m	- / +7	7Q6UJ	-16 / -	2	✓ Closing fragment
08-08 13:47	40m	- / -	DK8EW	-16 / -	2	✓ Closing fragment
08-08 06:53	20m	-8 / -	SQ8AA	- / -5	3	Partial capture
08-08 06:52	20m	-8 / -	TA3F	- / -18	2	✓ Closing fragment
08-08 06:49	20m	- / -6	R4FDW	-19 / -	5	Partial capture
08-08 06:49	20m	-4 / -1	RZ4FWA	-17 / -11	3	Partial capture
08-08 06:47	20m	-2 / -	F9DK	- / -19	3	✓ Closing fragment
08-08 06:46	20m	- / -	IW2DNI	-6 / -	22	Partial capture
08-08 06:43	20m	-5 / -4	F4FSY	-6 / -12	4	✓ Full exchange observed
08-08 06:40	20m	-7 / +2	UA6HGM	-20 / -4	14	✓ Full exchange observed
08-08 06:37	20m	-10 / -	F4DIA	-22 / -1	5	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
030845  +5 1565  ON4CVL S52UF R-21 (x2)
030915  +5  542  ON4CVL G8OO JO02 (x5)
031130 -13 1742  CQ ON4CVL JO10
031145 +10  542  ON4CVL G8OO JO02
031200 -16 1742  CQ ON4CVL JO10
031215  +8  542  ON4CVL G8OO JO02
031230 -10 1742  CQ ON4CVL JO10
031245  +8  542  ON4CVL G8OO JO02
031300 -16 1742  CQ ON4CVL JO10
031315  +8  543  ON4CVL G8OO JO02

20m

UTC    dB Audio  Message
064230 -24 1972  SV0LS ON4CVL JO10 (x2)
125000  +0 1358  CT1END/P ON4CVL JO10 (x3)
065500 -20 1517  ON4CVL CT1END/P +04
075545 -10 2335  F1THK ON4CVL JO10
115130 -18 1593  EC3A ON4CVL R-14 (x2)
070745  -6 1325  OK1VCB ON4CVL JO10 (x3)
130700  -9 1723  DL2USR ON4CVL R-17
133245  -5 1809  AO25FDM ON4CVL JO10 (x2)

40m

UTC    dB Audio  Message
164015  -5 2097  ON4CVL OE3RWR -16 (x2)
072600 -21 2175  ON4CVL SP5ROM -16 (x2)
064245 -12 1539  ON4CVL SP1ZMO -12 (x5)
125545 -12 1690  ON4CVL DL2USR -11 (x6)

10m

UTC    dB Audio  Message
093615  -2 1583  IQ7PU ON4CVL R+01
191900 -19 1568  ON4CVL PV8AJ -02 (x2)
074800 -24 1484  SP9OJ ON4CVL JO10 (x2)
075100 -17 2231  S51DD ON4CVL 73
075300 -21 1538  EA3ISZ ON4CVL JO10 (x2)
095630 -20 1557  EA5JGR ON4CVL 73
145300 -17 2228  ON4CVL 7Q6UJ +07 (x2)
175215 -19 1702  ON4CVL IU5TUG +02
184145  -8  968  ON4CVL CT3MD IM13 (x3)

Decoder S/N history by band

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