RU5X — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO84

Receiver-side FT8 activity involving RU5X, decoded by SO8OO in southeastern Poland. 780 related FT8 messages, 256 CQ messages, observed on 80m, 40m, 20m, 10m, across 60 UTC dates. Heard between 2026-05-25 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

780
Related messages
256
CQ messages
60
UTC dates heard
-7 dB
Mean decoder S/N

Bands

80m 40m 20m 10m
First seen: 2026-05-25
Last seen: 2026-08-23 13:38 UTC

Frequent QSO partners observed at SO8OO

Stations RU5X worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by RU5X

Approximate centre of KO84, decoded 2026-08-23 16:54 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 UTCBandRU5X S/NCounterpartCounterpart S/NMsgsCapture
08-23 15:39 20m -4 / - OK2VCR - / -7 2 ✓ Closing fragment
08-23 15:36 20m -6 / -20 XU7O -14 / -9 5 ✓ Full exchange observed
08-21 18:37 80m -24 / -15 UA9FMT -9 / -13 4 ✓ Full exchange observed
08-21 18:32 80m -23 / 0 R4FET -10 / -9 2 Partial capture
08-21 18:31 80m -20 / - R2DRE - / -7 2 ✓ Closing fragment
08-21 18:29 80m -11 / -11 RU3NCW +1 / -4 4 ✓ Full exchange observed
08-21 18:26 80m - / +1 UA3XDR -17 / - 2 ✓ Closing fragment
08-21 18:17 40m +3 / - R4AAR - / -12 3 ✓ Closing fragment
08-21 13:07 20m -10 / - XU7O - / - 4 Partial capture
08-18 16:32 40m -13 / - R9FFH - / -9 3 ✓ Closing fragment
08-14 19:22 80m -9 / - RK2Y - / - 3 Partial capture
08-14 19:20 80m -4 / - RA0SCA - / - 2 Partial capture
08-14 19:13 80m -16 / - R1WCK -13 / -11 3 ✓ Closing observed
08-14 19:11 80m - / -18 HA7XL +16 / - 3 ✓ Closing fragment
08-14 19:10 80m -13 / -14 RX3DQL -6 / -6 5 ✓ Full exchange observed
08-14 19:06 80m -8 / - R6DOB/7 - / -10 2 Partial capture
08-14 18:04 80m -5 / -6 OK1FRG +21 / -14 5 ✓ Full exchange observed
08-14 18:00 80m +2 / -15 R6BH 0 / -11 5 ✓ Full exchange observed
08-14 17:59 80m -2 / +2 R4HMI -13 / -4 5 ✓ Full exchange observed
08-14 17:55 80m -5 / +2 R2GFD -2 / -4 4 ✓ Full exchange observed
08-14 17:53 80m -10 / - RQ3D -15 / -14 3 ✓ Closing observed
08-14 17:50 80m -6 / - <...> - / -19 3 Partial capture
08-12 19:14 80m - / -9 HA7XL +13 / - 13 Partial capture
08-12 19:14 80m - / -19 RC6OU +12 / - 2 Partial capture
08-12 17:56 80m -8 / - RV3SBS/P - / - 2 Partial capture
08-10 18:58 40m -11 / - <...> - / - 4 Partial capture
08-10 18:54 40m -15 / - UF4S/6 - / -12 3 Partial capture
08-10 18:46 20m -19 / - EP2AES - / - 3 Partial capture
08-10 18:29 80m -12 / -1 R50RKZ +4 / -5 3 Partial capture
08-09 16:21 40m -12 / - UK8FCM - / -18 2 ✓ Closing fragment
08-09 16:18 40m -9 / - R2PX -14 / 0 3 ✓ Full exchange observed
08-09 16:14 40m -10 / - DM1AD - / -14 3 Partial capture
08-09 16:12 40m -13 / - RW0AE - / -15 2 ✓ Closing fragment
08-09 16:10 40m -12 / -8 R4CCE -17 / - 2 ✓ Closing observed
08-09 16:06 40m -12 / - SP9MOA - / -19 2 ✓ Closing fragment
08-09 16:03 40m -11 / -7 UC6D -11 / - 4 ✓ Closing observed
08-09 16:02 40m -16 / - YE4FNN - / -11 2 ✓ Closing fragment
08-09 15:56 40m -16 / - DL6CMF - / -24 2 ✓ Closing fragment
08-09 15:52 40m -15 / - UB4HVI - / - 2 Partial capture
08-09 15:44 40m -11 / - R9OON - / - 2 ✓ Closing fragment
08-08 17:11 40m -11 / -1 R3YAU -10 / - 6 ✓ Closing observed
08-08 11:54 20m - / -13 PD2WL -5 / - 5 Partial capture
08-07 18:30 20m -12 / - PD8RB/P - / - 5 Partial capture
08-07 08:09 20m -20 / -21 R50RKZ 0 / - 2 Partial capture
08-07 04:21 20m -4 / - K0SSD - / -13 2 ✓ Closing fragment
08-06 18:57 40m -9 / - R9WH/P - / -16 5 Partial capture
08-06 18:53 80m -20 / - R8CKD - / -20 2 Partial capture
08-06 18:50 80m -22 / - R4FES - / -17 2 ✓ Closing fragment
08-06 15:08 20m -19 / -9 UF4S/6 -13 / -6 3 Partial capture
08-05 18:26 20m -14 / - R4ADE/P - / - 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
185515 -16 1276  UF4S/6 RU5X R-12
185830 -13  760  <...> RU5X KO84 (x4)
155515 -22 1444  UB4HVI RU5X KO84
161030 -14 2409  VJ6X RU5X 73
163245 -14 1039  R9FFH RU5X R-09 (x3)
181700  +3 1696  R4AAR RU5X KO84 (x3)
182230 -12 1851  RU5X R3KMI RR73
165445  -6 2696  UA9ZZ RU5X KO84
20m 
UTC    dB Audio  Message
184630 -19 2099  EP2AES RU5X KO84 (x3)
130715 -10  793  XU7O RU5X KO84 (x4)
130930  -8 1711  RU5X R6AO KN95
153615 -14 1172  XU7O RU5X KO84 (x2)
153800 -14  500  RU5X XU7O -20
153815  -4  551  XU7O RU5X R-09 (x2)
153945  -2  551  OK2VCR RU5X -07 (x2)
80m 
UTC    dB Audio  Message
192300 -10 2406  RK2Y RU5X KO84
182600 -17 1501  RU5X UA3XDR +01 (x2)
182915 -12  469  RU3NCW RU5X KO84
182930  +0  469  RU5X RU3NCW -11
182945 -10  469  RU3NCW RU5X R-04
183000  +2  468  RU5X RU3NCW RR73
183115 -20 1804  R2DRE RU5X R-07 (x2)
183200 -10 1346  RU5X R4FET +00
183245 -23 1804  R4FET RU5X R-09
183730 -23 1406  UA9FMT RU5X KO84
183745  -9 1405  RU5X UA9FMT -15
183800 -24 1405  UA9FMT RU5X R-13
183815  -9 1405  RU5X UA9FMT RR73
10m 
UTC    dB Audio  Message
102145  -7 1921  CQ RU5X KO84 (x2)
102245  -8 1921  DL8OAZ RU5X -08 (x2)
102345  -7 1921  CQ RU5X KO84 (x2)
102445 -11 1921  DN9IL RU5X -04
102545  -9 1921  CQ RU5X KO84
102615  -8 1921  SP9DPI RU5X -04 (x2)
102715 -17 1921  CQ RU5X KO84 (x2)
102845 -12 2146  PU7MJD RU5X KO84 (x3)

Decoder S/N history by band

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