RU5A — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO85

Receiver-side FT8 activity involving RU5A, decoded by SO8OO in southeastern Poland. 264 related FT8 messages, 41 CQ messages, observed on 80m, 40m, 20m, 10m, across 20 UTC dates. Heard between 2026-05-23 and 2026-08-14.

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

264
Related messages
41
CQ messages
20
UTC dates heard
-8 dB
Mean decoder S/N

Bands

80m 20m 40m 10m
First seen: 2026-05-23
Last seen: 2026-08-14 20:05 UTC

Frequent QSO partners observed at SO8OO

Stations RU5A worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by RU5A

Approximate centre of KO85, decoded 2026-08-14 22:05 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 UTCBandRU5A S/NCounterpartCounterpart S/NMsgsCapture
08-14 22:04 80m -8 / -2 HB9EFK -2 / -7 7 ✓ Full exchange observed
08-14 21:38 80m - / - DO5HOK +1 / - 3 Partial capture
08-14 21:35 80m - / - DO5UH/P +9 / - 5 Partial capture
08-14 21:22 80m +6 / +2 ES1KRM +9 / -10 6 ✓ Full exchange observed
08-14 21:18 80m - / - RA9LY -12 / - 2 Partial capture
08-14 21:16 80m -6 / - RN3YN - / - 2 Partial capture
08-14 21:09 80m +3 / -2 OI5AY +1 / -8 9 ✓ Full exchange observed
08-14 21:06 80m -1 / +1 RM5F +5 / -10 5 ✓ Full exchange observed
08-14 21:03 80m +2 / -5 RA1AUS/P +6 / -13 9 ✓ Full exchange observed
08-14 20:22 80m +8 / 0 R1WCK -11 / -11 9 ✓ Full exchange observed
08-14 20:19 80m +8 / - R3WDW/P - / -9 2 Partial capture
08-01 22:28 20m - / -1 CT7AUT -6 / - 2 ✓ Closing fragment
08-01 22:15 20m - / -10 UA4POO -4 / - 2 ✓ Closing fragment
08-01 22:06 20m - / - G3ROY -18 / - 3 Partial capture
08-01 22:05 20m - / -3 BI4XDT -22 / - 2 Partial capture
07-31 22:39 20m - / -13 W8BLA -20 / - 3 ✓ Closing fragment
07-31 22:36 20m - / -13 WB8YJF -10 / - 2 Partial capture
07-31 21:47 20m - / +5 NO6V -5 / - 2 ✓ Closing fragment
07-26 13:02 20m -6 / - <...> - / - 6 Partial capture
07-26 12:58 20m -8 / -6 DH1FA -14 / +6 5 ✓ Full exchange observed
07-26 12:55 20m -12 / - DL8LRZ - / +1 3 ✓ Closing fragment
07-26 12:46 20m -8 / - RZ3Z/P - / - 3 Partial capture
07-24 23:05 40m -12 / -12 <...> -10 / -7 2 Partial capture
07-24 23:04 40m -10 / - R5BM - / -5 2 ✓ Closing fragment
07-24 22:42 40m -10 / +5 TK5K -22 / +3 8 ✓ Full exchange observed
07-24 22:34 40m -12 / - TJ1GD/P - / -11 11 Partial capture
07-24 22:31 40m -14 / - PZ5RA - / -4 3 ✓ Closing fragment
07-24 22:27 40m -9 / - TF8KW - / - 5 Partial capture
07-24 22:25 40m -8 / - <...> - / -4 2 Partial capture
07-24 22:21 40m -11 / - UA3AVY - / - 7 Partial capture
07-19 19:56 20m -18 / -2 DL9KM -14 / -9 7 ✓ Full exchange observed
07-19 19:56 20m -20 / - PD3CFG - / -15 2 ✓ Closing fragment
07-19 19:46 20m -12 / - <...> - / - 8 Partial capture
07-19 19:42 20m -9 / - OH0/DL1SVA - / - 4 Partial capture
07-19 19:41 20m -14 / - SP6AXW - / -11 2 ✓ Closing fragment
07-19 19:36 20m -12 / - A61SD -17 / -17 4 ✓ Closing observed
07-11 06:06 20m -9 / - KF0YOB - / - 3 Partial capture
07-11 06:04 20m -13 / - R1BRY/P - / - 3 Partial capture
07-11 05:59 20m -13 / - <...> - / - 2 Partial capture
07-11 05:57 20m -10 / - HF43ZW - / - 4 Partial capture
07-11 05:55 20m -6 / -1 E70A 0 / -13 5 ✓ Full exchange observed
07-11 05:53 20m -6 / - F6IJT - / - 2 Partial capture
07-11 05:48 20m -9 / - M7JVT - / -12 4 ✓ Closing fragment
07-11 05:46 20m -8 / -4 DB7GE +3 / -9 8 ✓ Full exchange observed
07-11 05:43 20m -8 / - OR7K - / +2 3 Partial capture
07-11 05:41 20m -11 / - A41KB - / -8 2 ✓ Closing fragment
07-11 05:37 20m -9 / - SP5DJ - / -9 3 Partial capture
07-11 05:36 20m -12 / - A41KB - / - 2 Partial capture
07-11 05:31 20m -8 / - RX7T - / +1 4 ✓ Closing fragment
07-11 05:29 20m -14 / -10 A92GE -17 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
213800  -8  703  CQ RU5A KO85
213815 +14  802  RU5A DO5UH/P JO61
213830  -2  704  CQ RU5A KO85
213845  +2  808  RU5A DO5HOK JO41
213900 -15  704  CQ RU5A KO85 (x2)
213945  +3  808  RU5A DO5HOK JO41 (x2)
220400  -9  703  HB9EFK RU5A KO85 (x3)
220515  -2  210  RU5A HB9EFK -02
220530 -12  703  HB9EFK RU5A R-07
220545  -3  210  RU5A HB9EFK RR73
220600  -6  704  HB9EFK RU5A 73
20m 
UTC    dB Audio  Message
223945 -22 1929  RU5A W8BLA EM84 (x3)
225945  -5  822  RU5A M7BUY -08
213315  -2  466  RU5A K2TQC -03
220500 -21 2098  RU5A BI4XDT PM01 (x2)
220600 -17 2020  RU5A G3ROY IO70 (x3)
220930 -16 2319  RU5A 5Z4VJ 73
221530  -6  796  RU5A UA4POO -10 (x2)
222830  -5 1771  RU5A CT7AUT -01 (x2)
40m 
UTC    dB Audio  Message
224045  -9 1962  TJ1GD/P RU5A R-11
224245 -11 1962  TK5K RU5A KO85 (x4)
224500 -22 1768  RU5A TK5K +05
224515 -10 1962  TK5K RU5A R+03
224600 -22 1768  RU5A TK5K RR73
224615 -13 1962  TK5K RU5A 73
230315 -17 1963  <...> RU5A KO85
230345  -6 2557  RK3DWA/3 RU5A KO85
230415  -6 2557  R5BM RU5A -05 (x2)
230530 -10 2558  RU5A <...> -12
230545 -12 2557  <...> RU5A R-07
10m 
UTC    dB Audio  Message
125415  -8 2242  CQ RU5A KO85
161715 -17 2244  HA1BF RU5A KO85 (x2)
161945 -19 2242  RA7T RU5A 73
162145 -17 1431  RU5A A71QQ -05 (x2)
164745  -4 2640  RU5A PD0HLA -10 (x2)
164915  -2  629  RU5A RA3PN -13 (x3)
165545 -15 2241  R1BED RU5A R-10 (x2)
170045 -20 2240  ER3CT RU5A 73
170145 -14 2239  R6OF RU5A KO85

Decoder S/N history by band

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