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. 217 related FT8 messages, 9 CQ messages, observed on 80m, 40m, 20m, 10m, across 30 UTC dates. Heard between 2026-05-29 and 2026-08-24.

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

217
Related messages
9
CQ messages
30
UTC dates heard
-9 dB
Mean decoder S/N

Bands

80m 20m 40m 10m
First seen: 2026-05-29
Last seen: 2026-08-24 15:05 UTC

Frequent QSO partners observed at SO8OO

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

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 UTCBandON4CVL S/NCounterpartCounterpart S/NMsgsCapture
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.

40m 
UTC    dB Audio  Message
072630 -22 2175  ON4CVL SP5ROM RR73
064245 -12 1539  ON4CVL SP1ZMO -12 (x5)
125545 -12 1690  ON4CVL DL2USR -11 (x6)
164915 -15 2164  ON4CVL IK1MJK/P RR73
165500 -14 2329  I/DH3YAK ON4CVL R-01
170515  -9 1614  ON4CVL LA2GCA -02
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)
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.