R0SDC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Locator transmitted in a decoded message: OO22

Receiver-side FT8 activity involving R0SDC, decoded by SO8OO in southeastern Poland. 637 related FT8 messages, 60 CQ messages, observed on 80m, 40m, 20m, 10m, across 41 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

637
Related messages
60
CQ messages
41
UTC dates heard
-7 dB
Mean decoder S/N

Bands

First seen: 2026-05-23
Last seen: 2026-08-21 14:30 UTC

Activity Heatmap

Locator transmitted by R0SDC

Approximate centre of OO22, decoded 2026-08-21 16:28 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 UTCBandR0SDC S/NCounterpartCounterpart S/NMsgsCapture
08-17 17:13 20m -8 / -3 R6OQ -11 / 0 5 ✓ Full exchange observed
08-17 17:09 20m -9 / -19 RG6S -10 / - 3 ✓ Closing observed
08-15 17:17 80m - / -19 R7CD +8 / - 2 ✓ Closing fragment
08-12 17:09 20m - / -18 F5IXN -6 / - 4 ✓ Closing fragment
08-11 16:57 20m - / -15 YT7DX +6 / - 3 Partial capture
08-11 16:53 40m - / -2 RK6MC -6 / - 6 ✓ Closing fragment
08-11 16:36 20m - / -6 F1NQP -4 / - 3 ✓ Closing fragment
08-10 16:29 20m -13 / - DL7ARV - / -9 2 ✓ Closing fragment
08-10 15:33 20m -13 / - YO9CX - / -3 2 ✓ Closing fragment
08-07 17:02 20m -14 / - R2BGZ - / -10 2 ✓ Closing fragment
08-07 17:00 20m -10 / - BI9BLG - / -12 2 ✓ Closing fragment
08-07 16:59 20m -12 / - R6OAQ - / -8 2 ✓ Closing fragment
08-07 16:56 20m -9 / -17 M1WLK -13 / -13 5 ✓ Full exchange observed
08-07 16:55 20m -12 / - UA3DLP - / -7 2 ✓ Closing fragment
08-07 16:54 20m -9 / - IK8WCP - / -18 2 ✓ Closing fragment
08-07 16:51 20m -12 / - UT8IFE - / -13 2 ✓ Closing fragment
08-07 16:51 20m -10 / -17 G0OSK -3 / -13 7 ✓ Full exchange observed
08-07 16:49 20m -12 / - RX7O - / -3 2 ✓ Closing fragment
08-07 16:49 20m -10 / - SV2AEL -18 / -2 4 ✓ Closing observed
08-07 15:51 20m -20 / -14 EB3JT -15 / -17 5 ✓ Full exchange observed
08-07 15:48 20m -18 / - R2DYC - / -15 2 Partial capture
08-07 15:47 20m -20 / - BI3UPU - / -7 2 ✓ Closing fragment
08-07 15:46 20m -20 / -3 IV3IUM -8 / -8 6 ✓ Full exchange observed
08-07 15:44 20m -20 / -16 EA5AR -12 / -14 5 ✓ Full exchange observed
08-07 15:42 20m -21 / - R9FFZ - / -13 2 ✓ Closing fragment
08-07 15:41 20m - / - DL7DO -16 / - 2 Partial capture
08-07 15:41 20m - / - IV3IUM -8 / - 3 Partial capture
08-07 15:41 20m -20 / +9 R6YG -4 / -7 6 ✓ Full exchange observed
08-07 15:38 20m -22 / -6 PD0RDD -20 / -7 4 ✓ Full exchange observed
08-06 14:02 20m - / -7 F1ODM 0 / - 2 ✓ Closing fragment
08-06 13:46 20m - / -3 RW6MZ -18 / - 3 ✓ Closing fragment
08-06 13:42 20m - / -11 DL8TV -3 / - 2 ✓ Closing fragment
08-04 13:01 20m - / -2 R6ZE -12 / - 2 ✓ Closing fragment
08-04 10:41 20m - / - DL9RDM -3 / - 3 Partial capture
08-03 18:03 40m - / -13 RW3QW -4 / - 3 ✓ Closing fragment
08-03 16:52 20m - / - IW5ABF -15 / - 3 ✓ Closing fragment
08-03 16:07 20m -17 / - I4WQH -14 / -17 3 ✓ Closing observed
08-03 16:04 20m -18 / - RA9AMO - / -7 2 ✓ Closing fragment
08-03 15:53 20m - / -15 RM4N -6 / - 4 ✓ Closing fragment
08-03 15:52 20m - / -4 IZ3ZPO +5 / - 3 ✓ Closing fragment
08-03 15:41 20m - / -12 RA6OY 0 / - 2 Partial capture
07-31 18:37 20m - / -4 DL6KA -8 / - 2 Partial capture
07-31 18:29 20m - / -19 PD3LKN -13 / - 3 Partial capture
07-31 18:23 20m - / +3 RC6OG -13 / - 3 ✓ Closing fragment
07-31 16:18 20m - / -7 RA6ZS 0 / - 2 ✓ Closing fragment
07-25 17:08 40m - / -20 R2SL -4 / - 3 ✓ Closing fragment
07-25 16:27 20m - / - R3XG -12 / - 3 Partial capture
07-25 16:05 20m - / +9 RV3F -10 / - 2 ✓ Closing fragment
07-18 16:38 20m - / -17 F8AGD -13 / - 2 ✓ Closing fragment
07-18 16:04 20m - / -3 R2AL +2 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
170930 -10  958  R0SDC RG6S RR73
170945  -9 2590  RG6S R0SDC 73
171115  -8 2590  RG4D R0SDC -06
171215  -6 2589  CQ R0SDC OO22
171300 -13 2074  R0SDC R6OQ KN87
171315  -7 2589  R6OQ R0SDC +00
171330 -14 2075  R0SDC R6OQ R-03
171345  -8 2589  R6OQ R0SDC RR73
171400  -6 2075  R0SDC R6OQ 73
162815 -17 2273  UA6XDA R0SDC OO22
163000  +1 1600  R0SDC RA4L -12
163115 -15 2273  RL1B R0SDC R-04
163245 -24 2273  UA6XDA R0SDC R-07
163430 -13 2272  RD1A R0SDC 73
163515 -19 2272  UA6XDA R0SDC R-07
80m
UTC    dB Audio  Message
173345  -6 1265  R0SDC UI4I R-18 (x2)
163830 -24 1678  R0SDC UA7N -19 (x2)
171730  +8  781  R0SDC R7CD -19 (x2)
40m
UTC    dB Audio  Message
172930  -8 2458  R0SDC UE6RU RR73
173030 -10 1243  R0SDC R3DMS R-10
170845  -5 2537  R0SDC R2SL -20 (x3)
180100 -21 1736  R0SDC R6YG -15
180300  -6 2117  R0SDC RW3QW -13 (x3)
165300  -7  902  R0SDC RK6MC -02 (x6)
10m
UTC    dB Audio  Message
144200 -16 2182  R0SDC RZ6DX RR73
160900  -9  709  R0SDC SV2CLJ KN10 (x2)

Decoder S/N history by band

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