ON5ACO — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving ON5ACO, decoded by SO8OO in southeastern Poland. 402 related FT8 messages, 47 CQ messages, observed on 80m, 40m, 20m, 10m, across 50 UTC dates. Heard between 2026-05-23 and 2026-08-21.

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

402
Related messages
47
CQ messages
50
UTC dates heard
-8 dB
Mean decoder S/N

Bands

80m 20m 40m 10m
First seen: 2026-05-23
Last seen: 2026-08-21 16:09 UTC

Frequent QSO partners observed at SO8OO

Stations ON5ACO worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by ON5ACO

Approximate centre of JO21, decoded 2026-08-21 18:09 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 UTCBandON5ACO S/NCounterpartCounterpart S/NMsgsCapture
08-21 18:54 40m -13 / - G0WTZ - / +2 3 Partial capture
08-21 18:08 40m -12 / - MW7IDN - / -11 2 Partial capture
08-21 17:21 40m -9 / - IK2SAU -13 / -11 3 ✓ Closing observed
08-21 17:19 40m -13 / - M0OLM - / -8 2 ✓ Closing fragment
08-20 14:18 20m -13 / - LB9CJ - / -6 2 Partial capture
08-20 14:06 20m -9 / - EA1HFI - / +1 2 ✓ Closing fragment
08-20 12:46 20m - / -10 M0LHJ -12 / - 2 ✓ Closing fragment
08-18 17:02 40m - / +3 HA1RJ +2 / - 2 Partial capture
08-17 14:11 20m - / -16 CR7BRV -1 / - 2 ✓ Closing fragment
08-15 16:03 40m - / -8 SP3RK -12 / - 2 ✓ Closing fragment
08-15 15:45 40m - / -13 OE3WOM -14 / - 2 ✓ Closing fragment
08-13 20:58 80m - / -4 DO1SJF +6 / - 3 ✓ Closing fragment
08-13 20:50 80m -18 / -2 TF4M -12 / -2 5 ✓ Full exchange observed
08-12 05:31 40m - / -4 HA3FIC -8 / - 2 ✓ Closing fragment
08-11 18:43 40m - / -17 EU6UE -17 / - 2 ✓ Closing fragment
08-05 19:57 40m - / -11 9A2Z -14 / - 2 ✓ Closing fragment
08-04 16:31 40m - / -4 DL6KIX -7 / - 3 ✓ Closing fragment
08-04 16:29 40m - / -1 DF2RG -12 / - 2 ✓ Closing fragment
08-02 09:26 20m -11 / - <...> - / -9 2 Partial capture
07-31 03:29 40m -10 / - K4YJ - / - 2 ✓ Closing fragment
07-10 18:28 40m - / -2 DH3CW -12 / - 2 ✓ Closing fragment
07-10 17:26 40m - / -19 EU2ABM -19 / - 2 ✓ Closing fragment
07-10 17:05 40m - / -5 SQ2PHC -15 / - 2 ✓ Closing fragment
07-10 17:03 40m - / -6 YL3MM -9 / - 3 ✓ Closing fragment
07-10 16:41 40m - / -11 SP1TMH -12 / - 2 ✓ Closing fragment
07-08 19:18 40m -17 / - PA1TW - / -19 2 Partial capture
07-08 18:57 40m -9 / -20 UR4UUR -16 / - 3 ✓ Closing observed
07-08 18:55 40m -10 / - EA1FAW - / -4 2 Partial capture
07-07 17:05 40m - / -16 9A1BTU -4 / - 2 ✓ Closing fragment
07-05 08:32 40m - / -5 DF8RU -14 / - 2 ✓ Closing fragment
07-03 22:28 40m -12 / - ZB2CM - / -11 2 Partial capture
07-03 22:25 40m -12 / -18 G0GFQ -8 / +6 3 ✓ Full exchange observed
07-03 22:22 40m -10 / -6 R2FDI -12 / -3 4 ✓ Full exchange observed
07-03 22:12 40m - / -20 DL1ESZ -10 / - 4 Partial capture
07-03 22:06 40m -18 / -3 SP7WTC -15 / - 3 ✓ Closing observed
07-03 22:04 40m -15 / 0 2E0AOZ -12 / - 2 ✓ Closing observed
07-03 21:55 40m -11 / - M7XSJ - / -17 2 Partial capture
07-03 20:33 40m - / -11 PD7YY -12 / - 2 ✓ Closing fragment
07-03 20:20 40m - / -13 DK3BK +1 / - 2 ✓ Closing fragment
07-03 20:18 20m - / -15 EA5FGC -15 / - 4 Partial capture
07-03 14:49 40m - / +3 DF0GDX -4 / - 2 ✓ Closing fragment
07-02 19:08 40m - / -17 YR50NADIA -7 / - 3 Partial capture
07-02 16:42 40m - / +3 DB6LL/P -2 / - 2 ✓ Closing fragment
06-30 19:40 40m - / -14 R1QF -16 / - 3 ✓ Closing fragment
06-26 18:24 20m - / -7 F4HTA +2 / - 2 ✓ Closing fragment
06-26 17:02 10m - / -21 M0JFG -16 / - 2 ✓ Closing fragment
06-26 16:52 20m - / -11 IU4PRI -13 / - 3 ✓ Closing fragment
06-24 14:44 20m -11 / - RA4L -13 / - 2 ✓ Closing observed
06-23 19:56 40m - / -5 DD2ML 0 / - 2 ✓ Closing fragment
06-23 19:51 40m - / -6 SP7MKG -8 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
171830 -12  792  CQ ON5ACO JO21
171900 -13  792  M0OLM ON5ACO -08 (x2)
172030 -10  792  CQ ON5ACO JO21
172100  -9  792  IK2SAU ON5ACO -11 (x2)
172145 -13 1034  ON5ACO IK2SAU 73
172400 -11  894  CQ ON5ACO JO21
172430  -6  893  IZ4SJP ON5ACO -08
180845 -10  745  MW7IDN ON5ACO JO21
180915 -15  889  CQ ON5ACO JO21
180945 -14  890  MW7IDN ON5ACO -11
185445 -15  748  G0WTZ ON5ACO +02 (x3)
20m 
UTC    dB Audio  Message
194845  -6  825  EA8AFB ON5ACO -03
194915  -8  825  TN8GD ON5ACO +06
194945 -14  825  CQ ON5ACO JO21
195115 -17 1396  9A5AGV ON5ACO -14
141145  +1  586  ON5ACO CR7BRV R-16 (x2)
124645 -13  825  ON5ACO M0LHJ R-10 (x2)
125345 -16  753  SP5PDA ON5ACO -06
125845 -16 1472  ON5ACO G4YTW 73
140630  -7  673  EA1HFI ON5ACO +01 (x2)
141845 -16  674  LB9CJ ON5ACO -06 (x2)
142045 -10  676  R3PLN/P ON5ACO -16
80m 
UTC    dB Audio  Message
205045 -21 1039  TF4M ON5ACO -02
205100 -14 2023  ON5ACO TF4M R-02
205115 -17 1039  TF4M ON5ACO RR73
205130 -11 2025  ON5ACO TF4M RR73
205145 -17 1039  TF4M ON5ACO 73
205415  +5  473  ON5ACO HB3YQP R+01
205830  +3 1743  ON5ACO DO1SJF R-04 (x3)
210515  +1  473  ON5ACO DP6SEVEN R-06
10m 
UTC    dB Audio  Message
133915 +11 2645  ON5ACO IQ4JO JN63 (x2)
134700  -7  928  CQ ON5ACO JO21                        a1 (x2)
124600  -3  922  ON5ACO HA1ORA JN96 (x2)
124845  +9  541  ON5ACO IK0PAV 73
170215 -16 1027  ON5ACO M0JFG R-21 (x2)

Decoder S/N history by band

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