RK4U — FT8 station from European Russia

European Russia Grid: JO44

Amateur radio station RK4U operating from European Russia (grid square JO44). 165 FT8 spots received at SO8OO WebSDR, 26 CQ calls, active on 40m, 20m, over 6 days, best SNR +20 dB. Heard between 2026-04-25 and 2026-05-13.

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Overview

165
Total spots
26
CQ calls
6
Days active
-9 dB
Avg SNR

Bands

20m 40m
First seen: 2026-04-25
Last seen: 2026-05-13 14:14 UTC

Frequent QSO partners observed at SO8OO

Stations RK4U worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandRK4UPartnerPartner SNRMsgs
05-13 16:13 40m +4 / - DK7UY - / - 2 Partial
05-13 16:11 40m -20 / - RC9WC -18 / -1 3 ✓ Verified
05-13 16:10 40m -10 / +1 RA3SO -16 / -10 4 ✓ Complete
05-13 15:37 20m -14 / +6 RG5A -20 / -1 4 ✓ Complete
05-13 15:13 20m -10 / - UA9OBN - / +2 2 ✓ Confirmed
05-13 15:11 20m -18 / -6 YB1BZV -12 / -7 4 ✓ Complete
05-13 14:21 20m -17 / - G6PWS - / - 2 Partial
05-13 14:12 20m -15 / - RU0LL - / -17 3 ✓ Confirmed
05-13 13:59 20m -14 / - GJ0KYZ - / -18 2 Partial
05-11 03:58 20m -11 / - UN7GME - / -10 3 ✓ Confirmed
05-11 03:31 20m -18 / - R9UIW - / -17 2 ✓ Confirmed
05-11 03:17 20m -3 / - RA0SCA - / - 2 Partial
05-11 03:08 20m +17 / - OD5KU - / -22 3 ✓ Confirmed
05-10 17:59 20m -10 / - PD7JLP - / - 2 Partial
05-10 17:58 20m +6 / - F4FLF - / - 4 Partial
05-10 17:56 20m -15 / -20 OZ5AGJ -19 / - 2 Partial
05-10 17:51 20m -3 / -18 G8KHF -18 / - 5 Partial
05-10 17:42 20m - / -18 JR4GPA -21 / - 2 Partial
05-10 17:41 20m - / -11 BD4VOJ -18 / - 2 ✓ Confirmed
05-10 17:39 20m -4 / -16 IU4COO -20 / -14 3 Partial
05-10 17:37 40m -8 / - R2YW - / - 4 Partial
05-10 17:32 40m -6 / - R2YW - / -9 5 Partial
05-10 17:22 40m -6 / - RN6MA - / -13 2 Partial
05-10 17:17 40m -18 / - R2DK - / - 2 Partial
05-10 17:06 40m -14 / - U1BD - / -8 3 ✓ Confirmed
05-10 05:55 20m -8 / - RZ5D - / -14 3 Partial
05-10 05:29 20m 0 / - EA5JK - / -23 2 Partial
05-10 05:19 20m -15 / - RA0SCZ - / - 2 Partial
05-10 05:16 20m -2 / - RA6OY - / - 6 Partial
05-07 16:48 40m -9 / - UA6LIK - / - 3 Partial
05-07 16:44 40m +2 / - S51UN - / - 3 Partial
05-07 16:44 40m -15 / - EU2ABM - / - 5 Partial
05-07 16:40 40m +7 / - RV3ZK - / -5 3 ✓ Confirmed
05-07 16:36 40m +3 / - S51UN - / - 2 Partial
05-07 16:34 40m +16 / - OE1AAJ - / - 2 Partial
05-06 17:03 20m -20 / - M0XAN - / - 4 Partial
05-06 15:43 20m +9 / - IK2RZP - / -13 3 Partial
05-06 15:36 20m +8 / - IK2RZP - / -17 6 Partial
04-25 15:16 40m -10 / -11 RV3YN -17 / - 7 ✓ Verified
04-25 14:56 40m -13 / - UB6OFG - / -10 3 Partial
04-25 14:53 40m -20 / - R3KJF - / - 2 Partial
04-25 14:52 40m -18 / - R2PA - / -1 2 ✓ Confirmed
04-25 13:41 40m -20 / - EW7LZ - / +9 3 ✓ Confirmed

Station Log

40m 
UTC    dB  Freq  Message
173415  -5  694  RK4U R2YW R-09 (x5)
161030 -16 1278  RA3SO RK4U +01
161045 -12 1740  RK4U RA3SO R-10
161100 -16 1278  RA3SO RK4U RR73
161115 -19 1985  RK4U RC9WC -01
161115  -8 1741  RK4U RA3SO 73
161145 -20 1985  RK4U RC9WC RR73
161200 -18 1278  RC9WC RK4U 73
161300 -20 1278  CQ RK4U LO24
161345  +1 2812  RK4U DK7UY JO44 (x2)
20m 
UTC    dB  Freq  Message
151100 -11 1598  YB1BZV RK4U -06
151115 -17 1276  RK4U YB1BZV R-07
151130 -14 1598  YB1BZV RK4U RR73
151145 -18 1276  RK4U YB1BZV 73
151345  -9  710  RK4U UA9OBN R+02 (x2)
151730 -16 1598  CQ RK4U LO24 (x3)
153745 -10 1598  RK4U RG5A KN93
153800 -22 1599  RG5A RK4U +06
153815 -17 1598  RK4U RG5A R-01
153830 -18 1599  RG5A RK4U RR73
153900 -17 1598  CQ RK4U LO24 (x2)

SNR History by Band