RO5K — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO91

Receiver-side FT8 activity involving RO5K, decoded by SO8OO in southeastern Poland. 923 related FT8 messages, 181 CQ messages, observed on 80m, 40m, 20m, 10m, across 48 UTC dates. Heard between 2026-04-21 and 2026-07-10.

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

923
Related messages
181
CQ messages
48
UTC dates heard
-5 dB
Mean decoder S/N

Bands

80m 20m 40m 10m
First seen: 2026-04-21
Last seen: 2026-07-10 07:38 UTC

Frequent QSO partners observed at SO8OO

Stations RO5K worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by RO5K

Approximate centre of KO91, decoded 2026-07-10 10:31 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 UTCBandRO5K S/NCounterpartCounterpart S/NMsgsCapture
07-09 19:09 80m +2 / -1 RC6OD +3 / 0 6 ✓ Full exchange observed
07-09 19:04 40m -11 / -9 R3PBR -6 / -26 3 ✓ Full exchange observed
07-09 18:41 40m -12 / - RL3F -17 / - 2 ✓ Closing observed
07-09 17:08 20m - / -4 SV1OML -13 / - 4 Partial capture
07-09 17:03 20m -18 / - <...> - / -13 2 Partial capture
07-05 08:27 20m - / - 3Z6I +20 / - 2 ✓ Closing fragment
07-05 08:23 20m - / -10 EW4DX -3 / - 5 ✓ Closing fragment
07-05 01:06 80m - / -10 TM2WWA +11 / - 3 ✓ Closing fragment
07-05 00:27 80m +2 / +4 SK3WWA -2 / - 8 ✓ Closing observed
07-05 00:25 80m +1 / -11 GB2WWA -12 / -14 5 ✓ Full exchange observed
07-05 00:22 80m +6 / - II0WWA - / -19 3 ✓ Closing fragment
07-05 00:20 80m +7 / - OH5WWA -9 / -5 4 ✓ Closing observed
07-05 00:14 80m +5 / -5 SN4WWA +2 / -7 2 Partial capture
07-05 00:12 80m +6 / - OL6WWA - / -1 4 ✓ Closing fragment
07-05 00:11 80m - / - RR73; -4 / - 2 Partial capture
07-05 00:10 80m +9 / -17 SN0WWA -14 / -8 3 Partial capture
07-04 21:14 80m -8 / - R3HX/P - / 0 3 ✓ Closing fragment
07-04 21:09 80m -4 / - SN4WWA - / -10 2 Partial capture
07-04 21:07 80m -13 / +5 SN2WWA +6 / -9 6 ✓ Full exchange observed
07-04 21:01 80m -11 / - II2WWA - / - 11 Partial capture
07-04 19:33 80m +6 / -12 II7WWA +8 / -8 5 ✓ Full exchange observed
07-04 19:23 40m -19 / -10 R7RCG -10 / - 3 ✓ Closing observed
07-04 19:17 40m -16 / -7 DA0WWA +7 / -12 3 Partial capture
07-04 19:13 40m -21 / -11 II3WWA +2 / -8 3 Partial capture
07-04 19:07 40m -14 / - UB8QCA - / -16 3 Partial capture
07-04 18:38 40m -14 / - VJ6X - / - 2 Partial capture
07-03 23:57 80m - / - DL6LG -9 / - 2 Partial capture
07-03 23:55 80m -10 / -2 UA3UCV -4 / +2 6 ✓ Full exchange observed
07-03 23:53 80m -6 / -10 R90PNR +2 / - 5 ✓ Closing observed
07-03 23:42 20m - / -10 VP2MAA -6 / - 2 ✓ Closing fragment
07-03 23:27 40m - / -21 GB2WWA -10 / - 2 ✓ Closing fragment
07-03 23:00 80m -9 / -1 TM8WWA -6 / -12 6 ✓ Full exchange observed
07-03 22:57 80m +1 / -9 LA1WWA -9 / - 4 ✓ Closing observed
07-03 22:56 80m - / -13 CS2WWA -20 / - 2 Partial capture
07-03 22:46 80m - / -3 CR2WWA -21 / - 2 ✓ Closing fragment
07-03 21:53 80m -5 / - 3Z6I - / - 3 ✓ Closing fragment
07-03 21:39 40m - / -5 UD6X -7 / - 3 ✓ Closing fragment
07-03 21:36 40m - / -13 TM8WWA -15 / - 2 Partial capture
07-03 21:06 80m -6 / - LA1WWA - / - 2 Partial capture
07-03 21:02 80m -5 / - II2WWA - / - 2 Partial capture
07-03 21:00 80m 0 / - II0WWA - / - 2 Partial capture
07-03 20:58 80m -5 / - SN4WWA +7 / -7 4 ✓ Closing observed
07-03 20:56 80m -5 / - GB2WWA - / -19 3 ✓ Closing fragment
07-03 20:50 80m -5 / -5 DA0WWA +5 / -8 5 ✓ Full exchange observed
07-02 19:50 80m - / -21 II8WWA -10 / - 2 Partial capture
07-02 19:38 80m -10 / -3 SN4WWA -8 / - 2 ✓ Closing observed
07-02 19:35 80m -8 / - II6WWA - / - 3 Partial capture
07-02 19:32 80m -10 / +8 RA6ZD -3 / +1 5 ✓ Full exchange observed
07-02 19:30 80m -14 / - SN3WWA - / - 2 ✓ Closing fragment
07-02 19:24 40m - / -6 DA0WWA -4 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
082630  -7  456  RO5K EW4DX 73
082700 +20 2618  RO5K 3Z6I +11 (x2)
170300 -18 2302  <...> RO5K KO91 (x2)
170430 -17 2303  RY8CAA RO5K KO91
170545 -20 2304  R1BGR RO5K KO91
170800 -15 1529  RO5K SV1OML KM18 (x4)
171130 -18 1577  RO5K 9K2OK RR73
093845 -10  876  RO5K R9FAI -05
103115 -24 1927  UA4LND RO5K KO91
103800 -21 1927  R90PNR RO5K 73
80m 
UTC    dB Audio  Message
002830  +2 2309  SK3WWA RO5K KO91 (x3)
002945  -5 1331  RO5K SK3WWA +04 (x2)
003030  +3 2309  SK3WWA RO5K 73
010645 +12  507  RO5K TM2WWA -10 (x3)
190900  +4  368  RC6OD RO5K KO91 (x3)
191045  +3 1092  RO5K RC6OD -01
191100  +6  368  RC6OD RO5K R+00 (x2)
40m 
UTC    dB Audio  Message
191315 -19 2289  II3WWA RO5K R-08 (x2)
191700  +7  606  RO5K DA0WWA -07
191715 -16 2289  DA0WWA RO5K R-12 (x2)
191930  +3  606  RO5K RR73; EA4GVT <...> -08
192045 -17 2290  SN3WWA RO5K R-01
192300 -19 2289  R7RCG RO5K KO91
192445 -11 1793  RO5K R7RCG -10 (x2)
184130 -17 2452  RO5K RL3F RR73
184145 -12  381  RL3F RO5K 73
190445 -11  382  R3PBR RO5K R-26
190600  -6 2079  RO5K R3PBR -09 (x2)
10m 
UTC    dB Audio  Message
184345 -18 2128  LY1SR RO5K KO91
184400  -9 1257  RO5K LY1SR -14
184415 -11 2128  LY1SR RO5K R-17
184430 -12 1257  RO5K LY1SR RR73
184445 -10 2128  LY1SR RO5K 73
184615 -18 2130  R4HIV RO5K KO91 (x2)
184900 -22 2116  HG7JAK RO5K R-11 (x2)
185000 -18 2116  R4RB RO5K KO91
185245 -13 2115  RO5K YO4NF -10 (x2)
185530 -11 2585  RO5K UB6C -05
190530  +1 2713  RO5K RX6AOB -03 (x2)

Decoder S/N history by band

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