RU4B — FT8 station from European Russia

European Russia Grid: ?

Amateur radio station RU4B operating from European Russia. 1,105 FT8 spots received at SO8OO WebSDR, 369 CQ calls, active on 80m, 40m, 20m, 10m, over 51 days, best SNR +19 dB. Heard between 2026-04-21 and 2026-06-29.

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

Overview

1,105
Total spots
369
CQ calls
51
Days active
-5 dB
Avg SNR

Bands

80m 40m 20m 10m
First seen: 2026-04-21
Last seen: 2026-06-29 05:54 UTC

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandRU4BPartnerPartner SNRMsgs
06-29 07:53 10m +5 / - SX0W - / -15 3 ✓ Confirmed
06-29 07:48 10m -20 / - RG7A - / - 2 ✓ Confirmed
06-29 06:45 10m -20 / - RN3H - / -1 2 Partial
06-29 02:03 40m -16 / - UA9SHH - / - 2 ✓ Confirmed
06-28 21:21 80m -14 / -16 R6DHI -5 / -10 7 ✓ Complete
06-28 17:33 80m -19 / - RV6ALM - / - 2 ✓ Confirmed
06-28 12:02 10m -7 / - RV3YR - / -2 5 ✓ Confirmed
06-26 08:56 10m +12 / - DG0BS - / -20 2 Partial
06-24 20:59 40m -1 / - DD2ML - / +2 3 ✓ Confirmed
06-24 20:59 40m -16 / - 9A7BB -23 / -8 3 ✓ Verified
06-24 20:56 40m -22 / -6 A71UN -20 / -2 2 Partial
06-24 20:39 40m - / - VK4DAD -9 / - 2 Partial
06-24 20:35 40m -18 / - UB3AYQ - / -11 2 ✓ Confirmed
06-24 20:31 80m +9 / -15 SQ9LOJ 0 / -2 4 ✓ Complete
06-24 20:29 80m +4 / +2 RA3GZ -3 / +3 5 ✓ Complete
06-24 16:26 10m -20 / - RW3VA - / +2 2 ✓ Confirmed
06-22 19:27 80m +2 / -14 SP2LNY -3 / -3 6 ✓ Complete
06-22 19:24 80m -11 / -11 UA3NFG -7 / - 4 ✓ Verified
06-22 19:22 80m 0 / -3 RC6OD -4 / - 5 ✓ Complete
06-22 19:19 80m -17 / - RU3XW -5 / - 2 ✓ Verified
06-22 19:17 80m -2 / - SP5DFK - / - 4 Partial
06-22 19:15 80m -19 / -8 R4FDQ -6 / -3 4 ✓ Complete
06-22 19:14 80m - / - RC6OD -7 / - 2 Partial
06-22 19:12 80m - / - R4FDQ -6 / - 2 Partial
06-22 09:06 20m - / -16 F8JIR -8 / - 3 ✓ Confirmed
06-22 08:58 20m -11 / - F4HSB - / -17 4 ✓ Confirmed
06-22 08:56 20m - / -3 UA9JGS -10 / - 2 Partial
06-21 20:33 40m - / -18 R3WEB -13 / - 2 ✓ Confirmed
06-21 20:29 40m -2 / - F6FLU -14 / -9 3 ✓ Verified
06-21 20:28 40m - / -10 R5BH -13 / - 2 ✓ Confirmed
06-21 20:21 80m - / +2 <...> -7 / - 2 Partial
06-20 19:28 80m - / -6 RA6FCU/P -3 / - 3 ✓ Confirmed
06-20 19:21 80m +6 / -19 RO1M -5 / -5 4 ✓ Complete
06-20 19:17 80m -4 / +3 RZ4AT -8 / +1 6 ✓ Complete
06-19 19:11 80m -16 / -13 RC1TB -20 / -20 4 ✓ Complete
06-19 19:07 80m +3 / - UA3ADE -14 / -1 6 ✓ Verified
06-19 19:05 80m -16 / -10 R1BFL/P -14 / -1 6 ✓ Complete
06-19 19:01 80m -6 / -4 RA3ZOM -18 / - 5 ✓ Verified
06-19 16:27 40m -16 / - UI5A - / -15 2 Partial
06-19 16:21 40m -10 / - R3XS - / -1 2 ✓ Confirmed
06-19 16:10 40m -8 / - SK0TM - / -11 2 ✓ Confirmed
06-19 13:56 20m - / -15 BA5AN +5 / - 2 Partial
06-19 13:53 20m - / -12 VU2FR -7 / - 2 Partial
06-19 13:51 20m - / -9 SP9LS -7 / - 3 ✓ Confirmed
06-19 13:49 20m -3 / - OH2XO +2 / +3 3 ✓ Verified
06-18 20:37 40m -11 / -4 R1BQW -10 / -1 6 ✓ Complete
06-18 20:33 40m -4 / - IQ4JHE - / -8 2 ✓ Confirmed
06-18 20:32 40m -16 / - RV9CX - / -8 2 ✓ Confirmed
06-18 20:27 40m -6 / -21 DL3IAK -8 / -16 4 Partial
06-18 20:27 40m -16 / - UA4WEL -10 / -2 3 ✓ Verified

Station Log

10m
UTC    dB  Freq  Message
085645 +11 2496  RU4B DG0BS -20 (x2)
120230 -14 2403  RU4B RV3YR -02 (x5)
120930 -18 2401  RV9CW RU4B LN28
064545 -21 1810  RU4B RN3H KO84 (x2)
074830 -20 1481  RU4B RG7A KN93 (x2)
075330  +7  658  RU4B SX0W KN10 (x3)
20m
UTC    dB  Freq  Message
085830 -11 1903  RU4B F4HSB R-17 (x3)
085945  -7 2743  <...> RU4B LN28
090030  +0 2153  RU4B RR73; M7NTL <...> +00
090115  -4 2743  CQ RU4B LN28 (x2)
090215  -3 2743  IW8PQ RU4B LN28
090600 -11 2742  F8JIR RU4B LN28 (x3)
090730  -3 2742  OE3EHS RU4B LN28
090800  +0 2742  CQ RU4B LN28
050145 -14 2689  <...> RU4B LN28
051930 -15 2504  UA6UEU RU4B LN28
40m
UTC    dB  Freq  Message
204315  -8 2652  VK4DAD RU4B R-13
204445  -7 2652  CQ RU4B LN28 (x2)
205130  -7  396  RC6O RU4B LN28
205300 -19 2154  CQ RU4B LN28
205600 -22 1945  RU4B A71UN -02
205615 -20 2154  A71UN RU4B R-06
205900 -14 2190  RU4B 9A7BB -08 (x2)
205930  -6 2535  RU4B DD2ML +02
205945 -23 2154  9A7BB RU4B 73
210000  -6 2535  RU4B DD2ML +02 (x2)
020345 -16 2304  RU4B UA9SHH +00 (x2)
80m
UTC    dB  Freq  Message
203215  +1 2482  SQ9LOJ RU4B R-15
203230 +10 2327  RU4B RR73; DO5RBB <...> +00
203245  +0 2482  SQ9LOJ RU4B 73
203345  +3 2482  HA3IC RU4B LN28
203415  +2 2482  CQ RU4B LN28
173330 -20 1624  RU4B RV6ALM +00 (x2)
212115  -4 2094  R6DHI RU4B LN28
212130 -17 2094  RU4B R6DHI -10
212145  -5 2094  R6DHI RU4B R-16
212200 -12 2094  RU4B R6DHI RR73
212215  -4 2094  R6DHI RU4B 73 (x2)
212300  +6 1364  RU4B LZ01MIKU +12
212315  -5 2094  R6DHI RU4B R-06

SNR History by Band