R3LDM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO64

Receiver-side FT8 activity involving R3LDM, decoded by SO8OO in southeastern Poland. 2,561 related FT8 messages, 1,005 CQ messages, observed on 40m, 20m, across 5 UTC dates. Heard between 2026-06-16 and 2026-06-20.

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

2,561
Related messages
1,005
CQ messages
5
UTC dates heard
-6 dB
Mean decoder S/N

Bands

First seen: 2026-06-16
Last seen: 2026-06-20 03:09 UTC

Activity Heatmap

Locator transmitted by R3LDM

Approximate centre of KO64, decoded 2026-06-20 04:56 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 UTCBandR3LDM S/NCounterpartCounterpart S/NMsgsCapture
06-20 05:08 40m - / -7 R3WDW -10 / - 2 ✓ Closing fragment
06-20 05:00 40m - / +5 UB3DQR -15 / - 2 Partial capture
06-20 04:56 40m - / +5 EU6KA -15 / - 3 ✓ Closing fragment
06-20 04:25 40m -15 / - S52UF -9 / -14 4 Partial capture
06-20 04:18 40m - / - F4BYA -4 / - 4 Partial capture
06-20 04:14 40m - / - F4BYA -1 / - 3 Partial capture
06-20 04:10 40m - / - F4BYA -1 / - 3 Partial capture
06-20 04:05 40m - / - F4BYA -1 / - 3 Partial capture
06-20 03:58 40m -10 / - UR5VLC -13 / -5 3 ✓ Closing observed
06-20 03:58 40m - / - F4BYA -1 / - 4 Partial capture
06-20 03:49 40m - / -11 RA3LCI -14 / - 2 ✓ Closing fragment
06-20 03:46 40m - / - F4BYA +4 / - 4 Partial capture
06-20 03:36 40m -8 / - IZ5FSO -2 / -9 3 Partial capture
06-20 03:36 40m - / - F4BYA +1 / - 4 Partial capture
06-20 03:26 40m - / - F4BYA +6 / - 3 Partial capture
06-20 03:19 40m - / - F4BYA +4 / - 3 Partial capture
06-20 03:15 40m - / - F4BYA -2 / - 3 Partial capture
06-20 03:12 40m - / -5 RA3ZGT -10 / - 4 ✓ Closing fragment
06-20 03:07 40m - / -10 UA6LIK -7 / - 3 ✓ Closing fragment
06-20 03:04 40m - / - R7DX -8 / - 2 ✓ Closing fragment
06-20 03:04 40m - / - F4BYA 0 / - 3 Partial capture
06-20 02:56 40m -12 / - RA9SVO - / -10 2 Partial capture
06-20 02:54 40m - / - F4BYA +4 / - 3 Partial capture
06-20 02:51 40m - / +5 R2PX -15 / - 3 ✓ Closing fragment
06-20 02:49 40m -13 / -23 RZ1AS -7 / -12 4 ✓ Full exchange observed
06-20 02:44 40m - / - F4BYA +3 / - 3 Partial capture
06-20 02:38 40m - / - F4BYA +6 / - 4 Partial capture
06-20 02:32 40m - / -8 DL3IAK -10 / - 7 ✓ Closing fragment
06-20 02:24 40m - / -5 RV6MX -4 / - 2 ✓ Closing fragment
06-20 02:20 40m - / +5 RN4AZ -16 / - 3 ✓ Closing fragment
06-20 02:16 40m - / - F4BYA +3 / - 4 Partial capture
06-20 02:04 40m - / - F4BYA +4 / - 3 Partial capture
06-20 01:58 40m - / - F4BYA +5 / - 4 Partial capture
06-20 01:44 40m - / - F4BYA +10 / - 7 Partial capture
06-20 01:38 40m - / - F4BYA +7 / - 7 Partial capture
06-20 01:24 40m - / - F4BYA +1 / - 3 Partial capture
06-20 01:22 40m - / -2 R6DOP -10 / - 3 ✓ Closing fragment
06-20 01:14 40m - / - F4BYA +3 / - 3 Partial capture
06-20 01:08 40m -9 / -19 9A2KO 0 / -3 4 ✓ Full exchange observed
06-20 01:04 40m - / - F4BYA +7 / - 14 Partial capture
06-20 01:01 40m - / -3 OE5FIL -12 / - 4 ✓ Closing fragment
06-20 00:59 40m -10 / - EI8LC - / -9 2 ✓ Closing fragment
06-20 00:58 40m - / - F4BYA +6 / - 4 Partial capture
06-20 00:51 40m - / +2 G3TKT -7 / - 2 ✓ Closing fragment
06-20 00:48 40m - / - F4BYA +4 / - 4 Partial capture
06-20 00:40 40m - / - F4BYA -1 / - 3 Partial capture
06-20 00:34 40m - / - F4BYA +5 / - 3 Partial capture
06-20 00:30 40m - / - F4BYA +2 / - 3 Partial capture
06-20 00:05 40m - / -11 R2ATY -20 / - 2 ✓ Closing fragment
06-19 23:52 40m - / - F4BYA +3 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
042330 -11 1043  CQ R3LDM KO64
042430 -14 1043  R3DDS R3LDM +00
042530 -15 1043  CQ R3LDM KO64
042545 -10 1877  R3LDM S52UF JN76 (x3)
042800 -15 1043  S52UF R3LDM -14
045600 -15 1043  CQ R3LDM KO64
045615 -15 2021  R3LDM EU6KA KO55 (x3)
050045 -15 1032  R3LDM UB3DQR KO85 (x2)
050845 -10  918  R3LDM R3WDW -07 (x2)
20m
UTC    dB Audio  Message
112245 -14 2673  R3LDM DL9PN JN39
112245 -15  889  R3LDM F1IQH JN27

Decoder S/N history by band

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