RK3OS — FT8 station from European Russia

European Russia Grid: KO90

Amateur radio station RK3OS operating from European Russia (grid square KO90). 1,131 FT8 spots received at SO8OO WebSDR, 53 CQ calls, active on 80m, 40m, 20m, over 34 days, best SNR +22 dB. Heard between 2026-04-29 and 2026-06-26.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

1,131
Total spots
53
CQ calls
34
Days active
-4 dB
Avg SNR

Bands

80m 40m 20m
First seen: 2026-04-29
Last seen: 2026-06-26 04:36 UTC

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandRK3OSPartnerPartner SNRMsgs
06-26 06:47 20m - / -5 R4FDW -2 / - 2 ✓ Confirmed
06-26 06:44 20m - / - M0DRN -10 / - 5 Partial
06-26 06:41 20m - / - ON8CA -12 / - 4 Partial
06-26 06:38 20m - / -12 DL1UDO -13 / - 4 Partial
06-26 06:32 20m -11 / -13 9A4ZM -9 / - 3 Partial
06-26 06:31 20m - / -13 IZ1HJU -8 / - 4 ✓ Confirmed
06-26 06:27 20m - / -12 PD0RWH -11 / - 6 Partial
06-26 06:24 20m - / -13 EA5ISA -11 / - 4 ✓ Confirmed
06-26 06:23 20m -9 / - 9A4ZM - / - 3 Partial
06-26 06:22 20m - / -12 IQ0OS -11 / - 4 ✓ Confirmed
06-26 06:17 20m - / -11 R6TA 0 / - 3 ✓ Confirmed
06-26 06:14 20m -7 / -9 HB9EFK +7 / -13 5 ✓ Complete
06-24 19:49 40m -12 / -7 HG8IT -13 / -3 3 Partial
06-24 19:46 40m - / -11 AO25HSJ -11 / - 2 Partial
06-24 19:43 40m - / - II9RICT -4 / - 4 Partial
06-24 19:37 40m -2 / - IK4LZH - / - 4 Partial
06-24 19:34 40m - / -13 F1UNR -11 / - 4 ✓ Confirmed
06-24 19:24 40m - / -8 IR0RPER -2 / - 3 Partial
06-24 18:46 40m -10 / -5 E71AT -8 / - 4 ✓ Complete
06-24 18:45 40m - / - EI8GS -13 / - 3 Partial
06-24 18:38 40m - / - EI8GS -15 / - 3 Partial
06-24 18:26 40m - / - IW8XOU -4 / - 2 Partial
06-24 02:56 40m - / - PV8AJ -19 / - 2 Partial
06-24 02:53 40m - / -13 HC2GRC -6 / - 4 ✓ Confirmed
06-06 08:23 20m - / -7 PD1ADA +4 / - 2 ✓ Confirmed
06-06 08:23 20m -6 / - PA2KV - / - 2 Partial
06-06 08:17 20m - / -13 IW8XLD +3 / - 6 Partial
06-06 08:14 20m - / -12 DB2VS +5 / - 5 ✓ Confirmed
06-06 08:12 20m - / - IQ0VT +10 / - 2 Partial
06-03 09:35 20m - / -7 RA6FSV -3 / - 4 ✓ Confirmed
06-03 09:32 20m - / -7 VO1AW +3 / - 3 ✓ Confirmed
06-03 09:27 20m -4 / -11 IQ9BF -4 / - 6 ✓ Verified
06-03 09:23 20m - / - 2E0UMK -11 / - 2 Partial
06-03 09:21 20m -6 / - RA4CX - / - 4 ✓ Confirmed
06-03 09:19 20m - / -12 MW3FLI 0 / - 4 ✓ Confirmed
06-01 18:18 80m -2 / - DO9KB - / -7 2 ✓ Confirmed
06-01 18:13 80m - / -1 R9FAK -8 / - 2 ✓ Confirmed
06-01 18:12 80m -17 / - RA3BY -13 / -5 6 ✓ Verified
06-01 18:11 80m -9 / - RG7O - / - 3 Partial
06-01 18:11 80m -9 / +6 RK4FD -6 / - 10 ✓ Complete
06-01 18:11 80m -5 / +2 RA6FC -2 / -2 6 ✓ Complete
06-01 18:10 80m -18 / - SV1TRJ - / -12 2 ✓ Confirmed
06-01 18:10 80m -17 / +1 UA4HJ 0 / -3 7 ✓ Complete
05-30 10:25 20m -22 / - RG1L -12 / -4 2 ✓ Verified
05-30 10:23 20m - / -7 MI7JQH -16 / - 4 Partial
05-30 10:08 20m - / -15 HA8DG -2 / - 2 Partial
05-30 10:02 20m -17 / -4 PE1NPS +5 / -18 6 ✓ Complete
05-30 10:01 20m -18 / -11 DK1MBY -4 / - 3 Partial
05-30 10:01 20m - / -3 DJ1TU +1 / - 3 ✓ Confirmed
05-30 09:58 20m - / -11 OE5PEN +1 / - 3 ✓ Confirmed

Station Log

20m
UTC    dB  Freq  Message
063800 -13 1410  DL1UDO RK3OS KO90 (x4)
064115 -14 1276  ON8CA RK3OS KO90 (x4)
064415 -10 2412  M0DRN RK3OS KO90 (x5)
064745  -3 2405  R4FDW RK3OS R-05 (x2)
40m
UTC    dB  Freq  Message
193715  -7 2590  RK3OS F1PBZ -03
193745  -4  536  RK3OS IK4LZH JN54 (x3)
194030  -5  593  CQ RK3OS KO90                         a1
194315  -8  752  II9RICT RK3OS KO90 (x4)
194515 -10 1368  IQ3UCY RK3OS KO90
194645 -11 1301  AO25HSJ RK3OS KO90 (x2)
194900 -11 1302  RK3OS HG8IT -03 (x2)
194945 -13 1302  HG8IT RK3OS R-07
80m
UTC    dB  Freq  Message
181400  -1 2503  UA4HJ RK3OS R+01
181415 -14 1528  RK3OS RA3BY KO75
181415 -19 2503  RK3OS UA4HJ RR73
181430  +1 2503  UA4HJ RK3OS 73
181445 -23 1528  RK3OS RA3BY KO75 (x2)
181530 -13 1528  RA3BY RK3OS RR73
181545 -14 1528  RK3OS RA3BY 73
181545  -5 1095  RK3OS RK4FD LO22
181600  -7 1095  RK4FD RK3OS +06
181615  -5 1095  RK3OS RK4FD R+17
181630  -5 1095  RK4FD RK3OS RR73
181645  -2 1095  RK3OS RK4FD 73
181800  -4 1208  RK3OS DO9KB -07 (x2)

SNR History by Band