RU4B — FT8 station from European Russia
Amateur radio station RU4B operating from European Russia (grid square KN93). 1,101 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
1,101
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 05:48 UTC
Last seen: 2026-06-29 05:48 UTC
Frequent QSO partners observed at SO8OO
Stations RU4B worked most often, as logged from our receiver:
R6DZL
· European Russia ×2
RZ6ALZ
· European Russia ×2
R1TET
· European Russia ×2
R2EA/P
· European Russia ×2
A61DD
· United Arab Emirates ×2
RO5K
· European Russia ×2
R1BQC
· European Russia ×2
RV6FN
· European Russia ×2
RA5AK
· European Russia ×2
IT9VCE
· Sicily ×2
R5DC
· European Russia ×2
LZ2KV
· Bulgaria ×2
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | RU4B | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 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 |
| 06-18 20:22 | 40m | -7 / -1 | R2DDA | -13 / -12 | 3 | ✓ Complete |
Station Log
10m
UTC dB Freq Message 163945 -17 2448 DL7CK RU4B RR73 084045 -2 2008 RU4B R3GO RR73 084945 -2 2624 RU4B UA6AHR -24 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)
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