OH3OJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Finland Locator transmitted in a decoded message: KP20

Receiver-side FT8 activity involving OH3OJ, decoded by SO8OO in southeastern Poland. 2,552 related FT8 messages, 1,043 CQ messages, observed on 80m, 40m, 20m, 10m, across 71 UTC dates. Heard between 2026-05-26 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

2,552
Related messages
1,043
CQ messages
71
UTC dates heard
-7 dB
Mean decoder S/N

Bands

80m 20m 40m 10m
First seen: 2026-05-26
Last seen: 2026-08-23 16:28 UTC

Frequent QSO partners observed at SO8OO

Stations OH3OJ worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by OH3OJ

Approximate centre of KP20, decoded 2026-08-23 18:23 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 UTCBandOH3OJ S/NCounterpartCounterpart S/NMsgsCapture
08-23 18:28 40m -13 / -10 R3DQK -12 / - 3 ✓ Closing observed
08-23 18:25 40m +1 / - II7MGBT -8 / - 3 ✓ Closing observed
08-23 18:23 40m -6 / - UR5XEJ -3 / -8 6 ✓ Closing observed
08-23 18:22 40m -10 / - DL1YAW/P - / -6 2 Partial capture
08-23 18:20 40m -6 / - R1BRZ - / -7 2 ✓ Closing fragment
08-23 18:10 40m +3 / - DL9GF - / -17 2 ✓ Closing fragment
08-23 18:09 40m +1 / -8 YO9CB -6 / - 3 ✓ Closing observed
08-23 18:05 40m -6 / - UB0SMX/P - / -13 3 Partial capture
08-23 18:03 40m -4 / - M6RVA - / -13 2 ✓ Closing fragment
08-23 18:02 40m -4 / - UB0SMX/P - / -12 2 Partial capture
08-23 18:01 40m -8 / - PD7PIN - / -10 2 ✓ Closing fragment
08-23 17:25 20m - / -4 TA2TDW +3 / - 3 ✓ Closing fragment
08-23 16:52 20m - / - DA1EA -17 / - 2 ✓ Closing fragment
08-23 12:44 10m - / -2 DL6TK -7 / - 2 ✓ Closing fragment
08-23 05:51 20m -16 / - UR5WCS - / -6 5 ✓ Closing fragment
08-23 05:39 20m -16 / - G0COG - / -4 2 Partial capture
08-23 05:17 40m -10 / - II7MGBT - / -13 2 Partial capture
08-23 05:06 40m -6 / - IZ2CPO/QRP - / -15 2 Partial capture
08-23 05:02 40m -12 / - 3Z100LKK - / -14 2 Partial capture
08-22 16:26 40m -10 / -22 IK8OXO -18 / - 3 ✓ Closing observed
08-22 12:13 10m - / -10 DL2UR -19 / - 2 ✓ Closing fragment
08-22 11:19 10m - / +10 M8FQT -8 / - 4 ✓ Closing fragment
08-22 11:13 10m - / -2 PD4FLD -11 / - 2 Partial capture
08-22 11:09 10m - / +9 PE9JAN -18 / - 3 ✓ Closing fragment
08-22 11:08 10m - / -11 DR9P -16 / - 2 ✓ Closing fragment
08-22 06:39 20m -11 / - DB100FT - / -11 2 Partial capture
08-22 06:38 20m -12 / - M0LAD - / +2 2 Partial capture
08-22 06:37 20m -13 / - PE4BEN - / -7 2 ✓ Closing fragment
08-22 06:29 20m -7 / - YV4PPC - / -18 2 Partial capture
08-22 06:17 20m -4 / - VK2GQR - / -6 2 Partial capture
08-22 06:15 20m -3 / - KJ5PTH - / -14 2 Partial capture
08-21 15:41 20m - / -4 F1UGD +9 / - 13 Partial capture
08-21 15:32 20m - / -23 BH4PPY -16 / - 2 ✓ Closing fragment
08-21 15:29 20m - / -7 IZ5IOT -5 / - 2 Partial capture
08-21 09:09 20m -9 / -21 9A5RIS -6 / -14 3 ✓ Full exchange observed
08-21 09:06 20m -9 / - PD5GO - / -7 2 Partial capture
08-21 08:55 20m -12 / -6 ON5GQ -4 / -2 3 ✓ Full exchange observed
08-21 08:53 20m - / -6 F5HND -14 / - 2 ✓ Closing fragment
08-21 08:43 20m - / -5 IZ5EME +9 / - 2 ✓ Closing fragment
08-21 08:39 20m -12 / - PD2HK - / -12 2 Partial capture
08-21 08:39 20m - / - DK9IP +16 / - 2 ✓ Closing fragment
08-21 08:37 20m -14 / - R2DRY - / -11 2 ✓ Closing fragment
08-21 08:34 20m -12 / - IK2LHR - / -15 2 Partial capture
08-21 07:42 20m -14 / - IW2KGL - / -6 2 ✓ Closing fragment
08-21 07:41 20m -14 / - IZ6YMF - / -16 2 ✓ Closing fragment
08-21 07:36 20m -18 / - IK2IPY -4 / 0 4 ✓ Full exchange observed
08-21 07:35 20m -14 / - PA3BME - / -4 2 ✓ Closing fragment
08-21 07:31 20m -14 / - F4HMT - / -16 2 Partial capture
08-21 07:29 20m -8 / -1 IW2KGL -8 / -12 3 ✓ Full exchange observed
08-21 07:22 20m -12 / - PH0AS - / -7 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
182300 -12  719  CQ OH3OJ KP20
182315  -3 1432  OH3OJ UR5XEJ KO40 (x2)
182400 -11  719  CT2KNA OH3OJ RR73
182430  -4  720  UR5XEJ OH3OJ -08
182500  -6 2066  <OH3OJ> II7MGBT RR73
182500  -4  719  UR5XEJ OH3OJ -08
182515  +1 2065  II7MGBT OH3OJ 73
182530  -9  719  UR5XEJ OH3OJ RR73
182545  +1 1194  OH3OJ UR5XEJ 73
182600 -10 2066  OH3OJ II7MGBT 73
182700  -8  719  SP5BK OH3OJ +05
182815 -12 2671  OH3OJ R3DQK R-10
182830 -13  719  R3DQK OH3OJ RR73
182845 -12 2671  OH3OJ R3DQK 73
20m 
UTC    dB Audio  Message
055130 -16  578  UR5WCS OH3OJ R-06 (x5)
055430 -12  256  F4NGR OH3OJ -14
165230 -16 1278  OH3OJ DA1EA R+11 (x2)
170015  +2 1029  OH3OJ G4FHL 73
170245 -14  266  OH3OJ G4WJJ 73
171045  -8  275  OH3OJ EA4DZR 73
172515  +3 2925  OH3OJ TA2TDW KN40 (x3)
174315 -12 2392  OH3OJ RZ9SP LO71
10m 
UTC    dB Audio  Message
111030 -20 1738  OH3OJ PE9JAN 73
111330 -10  786  OH3OJ PD4FLD R-02 (x2)
111930  -3  785  OH3OJ M8FQT IO93 (x4)
113500  -9 2139  OH3OJ 9A7Y 73
120445  -7  713  OH3OJ DL4MBY R-08
121315 -20 1490  OH3OJ DL2UR R-10 (x2)
121815  -4  491  OH3OJ IK4LZH JN54
124415  -7 2128  OH3OJ DL6TK R-02 (x2)
135530  +6 1234  OH3OJ LZ1EV RR73
80m 
UTC    dB Audio  Message
185715  -9  333  R50RKZ OH3OJ RR73
185730  +6 2249  OH3OJ R50RKZ RR73
185745  -6  333  SQ5TA OH3OJ -04 (x2)
185845  -4  333  RO2E/M OH3OJ -15 (x3)
190000 -21 1192  OH3OJ RO2E/M R-10
190200  -5  333  RO2E/M OH3OJ -07
190230  -5  333  OI5AY OH3OJ -04 (x2)
190315  -2 1693  OH3OJ OI5AY R+08
190330  +1  333  OI5AY OH3OJ RR73
190345  -3 1693  OH3OJ OI5AY 73
190400  +0  333  RO2E/M OH3OJ -05

Decoder S/N history by band

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