RD5Q — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO90

Receiver-side FT8 activity involving RD5Q, decoded by SO8OO in southeastern Poland. 636 related FT8 messages, 228 CQ messages, observed on 80m, 40m, 20m, 10m, across 56 UTC dates. Heard between 2026-05-24 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

636
Related messages
228
CQ messages
56
UTC dates heard
-6 dB
Mean decoder S/N

Bands

80m 20m 40m 10m
First seen: 2026-05-24
Last seen: 2026-08-21 16:49 UTC

Frequent QSO partners observed at SO8OO

Stations RD5Q worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by RD5Q

Approximate centre of KO90, decoded 2026-08-17 05:22 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 UTCBandRD5Q S/NCounterpartCounterpart S/NMsgsCapture
08-19 17:08 20m - / -12 TA2ED -11 / - 2 ✓ Closing fragment
08-17 05:21 20m 0 / - R9FDE/P - / - 3 Partial capture
08-08 02:12 40m -1 / - K4VP - / - 3 Partial capture
08-08 01:48 40m -6 / - UA9SY - / -12 2 ✓ Closing fragment
08-08 01:47 40m - / - F1IQH -8 / - 4 Partial capture
08-08 01:47 40m - / - F5MYH -9 / - 14 Partial capture
08-08 01:37 40m -4 / - XE1SWW - / -15 10 Partial capture
08-08 01:31 40m -14 / - XE1SWW - / -26 7 Partial capture
08-08 01:27 40m -10 / - XE1RK - / -13 6 ✓ Closing fragment
08-05 03:21 20m -10 / - KA9FOX - / -22 2 ✓ Closing fragment
08-01 03:26 40m -11 / - CE8EIO - / - 3 Partial capture
08-01 03:23 40m -11 / -12 F1IQH -20 / -19 4 Partial capture
08-01 03:20 40m -14 / -15 F5SJC -15 / -18 2 Partial capture
08-01 03:17 40m -17 / - R4CFH - / +1 3 Partial capture
08-01 03:14 40m -14 / - RD3FY -13 / - 2 ✓ Closing observed
08-01 03:07 40m -7 / - PY8WW - / - 4 Partial capture
07-31 18:43 80m - / -14 RW4HD +5 / - 3 Partial capture
07-31 18:43 80m -12 / -7 RK4FAJ -12 / -7 4 ✓ Full exchange observed
07-31 18:42 80m -13 / -9 R4HFK -16 / -12 4 ✓ Full exchange observed
07-31 18:40 80m -16 / -12 RW4HUD -6 / -6 4 ✓ Full exchange observed
07-31 18:38 80m -13 / -9 R8FB -3 / -11 5 ✓ Full exchange observed
07-31 18:37 80m -10 / -15 RG6OR -8 / -5 6 ✓ Full exchange observed
07-31 18:37 80m - / -4 RW4HD +3 / - 3 Partial capture
07-31 18:36 80m - / -4 RV3X 0 / - 3 ✓ Closing fragment
07-31 18:33 80m -13 / -21 E70SZ +2 / -18 7 ✓ Full exchange observed
07-31 18:27 80m -12 / -10 RN6LBT -6 / +2 4 ✓ Full exchange observed
07-31 18:23 80m - / -13 RK6MC +8 / - 2 ✓ Closing fragment
07-31 18:23 80m -13 / -11 RM5F 0 / - 5 ✓ Closing observed
07-29 15:17 20m -18 / - R0AY - / -3 2 ✓ Closing fragment
07-29 10:12 20m - / - SA3SHN -12 / - 2 ✓ Closing fragment
07-29 10:12 20m - / - EA5AR -16 / - 3 Partial capture
07-29 09:38 20m - / - R2AL -8 / - 4 Partial capture
07-28 03:19 20m - / - W8JRK -21 / - 3 ✓ Closing fragment
07-27 17:21 20m - / -14 F1ODM -2 / - 6 ✓ Closing fragment
07-27 16:37 20m - / -8 F1PBZ -5 / - 2 ✓ Closing fragment
07-27 03:47 20m -10 / - VP5G - / -16 5 Partial capture
07-26 18:52 40m -6 / - UB3FDA - / -14 2 ✓ Closing fragment
07-26 18:46 40m -4 / - UA4AOC - / - 7 ✓ Closing fragment
07-26 18:43 40m - / -10 S59A +4 / - 2 ✓ Closing fragment
07-26 18:38 40m -8 / -2 SQ8LE -6 / -22 5 ✓ Full exchange observed
07-25 18:07 20m - / - F4HSB -16 / - 2 ✓ Closing fragment
07-25 17:57 20m - / -8 DG0VO +5 / - 2 Partial capture
07-24 03:15 20m - / - 5Z4VJ -12 / - 2 Partial capture
07-24 03:03 40m - / -8 RA1TR -11 / - 3 ✓ Closing fragment
07-22 18:23 40m -8 / - JA0LFV - / -12 2 ✓ Closing fragment
07-22 18:19 40m -8 / - RO2T - / 0 2 ✓ Closing fragment
07-22 18:16 40m -10 / -5 DL2RPN -9 / -5 5 ✓ Full exchange observed
07-22 18:15 40m -9 / - R3HH -8 / - 2 ✓ Closing observed
07-22 18:10 40m -10 / +2 RA6ABO -9 / -4 6 ✓ Full exchange observed
07-22 18:09 40m -10 / - VU4R - / - 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
152900  -8  643  A41ZZ RD5Q 73
153130 -13  644  CQ RD5Q KO90
080615 -16 1901  RD5Q R9WH -12
032130  -8  507  KA9FOX RD5Q -22 (x2)
032345 -10  510  7Z1FF RD5Q KO90
032600 -12  534  PD0RCQ RD5Q -21
112145 -13  615  SV0TPN RD5Q KO90
052130  -2  626  R9FDE/P RD5Q KO90 (x3)
170830 -14 1016  RD5Q TA2ED -12 (x2)
184915  -8 2103  RD5Q SV2AEL 73
080915  -9  781  RU0AX RD5Q 73
40m 
UTC    dB Audio  Message
014900  -5  524  UA9SY RD5Q RR73
014945 -10 2470  RD5Q F5MYH JN07 (x11)
021215  +1  590  K4VP RD5Q KO90 (x3)
80m 
UTC    dB Audio  Message
184015  -3  493  RD5Q RW4HUD R-12
184030 -16 1154  RW4HUD RD5Q RR73
184045  -9  493  RD5Q RW4HUD 73
184200 -16 1154  CQ RD5Q KO90
184230 -13 1154  R4HFK RD5Q -12
184245 -15 1153  RD5Q R4HFK R-09
184300 -13 1154  R4HFK RD5Q RR73
184315 -16 1154  RD5Q R4HFK 73
184330 -13 1154  RK4FAJ RD5Q -07
184345 -13 1153  RD5Q RK4FAJ R-07
184345  +4 2605  RD5Q RW4HD -14
184400 -12 1154  RK4FAJ RD5Q RR73
184415  +7 2605  RD5Q RW4HD -14
184415 -11 1154  RD5Q RK4FAJ 73
184445  +5 2605  RD5Q RW4HD -14
10m 
UTC    dB Audio  Message
174100  -4  632  LW4ERH RD5Q KO90
184600  +2 2872  RD5Q D44EC -22
144800 -13  844  LU3HBA RD5Q KO90 (x2)
180345 -12 1365  PR2CC RD5Q KO90 (x4)
180700 -17 2264  RD5Q RA3FH KO84
180715  -8 2499  PR2CC RD5Q KO90
181745  -3 2201  CX5ABM RD5Q KO90 (x4)
111430 -11  511  UA1OJL RD5Q 73

Decoder S/N history by band

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