R4SF — FT8 station from European Russia

European Russia Grid: ?

Amateur radio station R4SF operating from European Russia. 115 FT8 spots received at SO8OO WebSDR, 8 CQ calls, active on 40m, 20m, over 10 days, best SNR +18 dB. Heard between 2026-04-21 and 2026-05-14.

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Overview

115
Total spots
8
CQ calls
10
Days active
-4 dB
Avg SNR

Bands

20m 40m
First seen: 2026-04-21
Last seen: 2026-05-14 06:43 UTC

Frequent QSO partners observed at SO8OO

Stations R4SF worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandR4SFPartnerPartner SNRMsgs
05-14 08:43 20m - / -13 EA8UP +2 / - 3 Partial
05-14 08:42 20m +2 / -18 UI5A 0 / -15 6 Partial
05-14 08:40 20m -17 / -4 US1EA +1 / - 4 ✓ Verified
05-14 08:39 20m +8 / - UI5A - / - 2 Partial
05-14 08:35 20m - / -7 SM3MLX +2 / - 6 ✓ Confirmed
05-14 08:33 20m 0 / -3 RN6LPC -2 / +8 5 ✓ Complete
05-14 08:32 20m -9 / -9 M8KKH -4 / -4 4 ✓ Complete
05-14 08:30 20m - / -10 DL5JMN -2 / - 2 Partial
05-14 08:21 20m -14 / - R2BMP - / - 2 Partial
05-14 08:18 20m - / -10 EA8UP -2 / - 2 Partial
05-12 06:32 20m -17 / -16 M0YGH +4 / -15 4 Partial
05-12 06:28 20m - / -4 IZ2SXZ -7 / - 3 ✓ Confirmed
05-12 06:23 20m - / -12 <...> -1 / - 5 Partial
05-08 10:46 20m - / +1 YO2CMI +3 / - 3 ✓ Confirmed
05-08 10:42 20m - / -14 JH5AVM -7 / - 3 Partial
05-08 10:41 20m - / +2 YT3D -5 / - 2 Partial
05-08 08:21 20m - / -13 <...> -4 / - 2 Partial
05-08 08:16 20m -9 / - RW3DDZ - / - 5 ✓ Confirmed
05-08 08:01 20m - / -7 OK5AW +10 / - 2 ✓ Confirmed
05-08 06:47 20m - / -15 <...> -13 / - 3 Partial
05-08 06:38 20m +14 / -5 <...> -12 / -5 2 Partial
05-07 13:51 20m - / -7 RA0UB -3 / - 2 ✓ Confirmed
05-07 13:50 20m -2 / -3 ON3MOH +1 / - 3 Partial
05-07 13:42 20m -5 / -5 <...> -5 / -6 4 Partial
05-07 13:35 20m +3 / +8 <...> -4 / -12 5 Partial
05-07 12:17 40m +2 / - <...> - / -9 2 Partial
05-07 08:03 20m -11 / - <...> - / -18 2 Partial
05-07 07:57 20m +11 / -19 <...> -4 / -12 3 Partial
05-07 07:54 20m - / -7 RP81LDD -6 / - 2 Partial
05-07 05:46 20m -10 / -9 W5UHQ -2 / -20 10 ✓ Complete
05-07 05:40 20m - / - <...> +5 / - 2 Partial
05-06 12:37 20m -12 / - <...> -3 / -6 9 Partial
05-06 11:37 20m -2 / -13 <...> -6 / -19 4 Partial
05-06 11:19 20m -12 / -8 <...> -1 / -5 16 Partial
05-06 11:17 20m - / -1 RP81J -4 / - 2 Partial
05-06 05:58 40m -18 / - EU1FQ - / -20 3 ✓ Confirmed
05-04 08:14 20m -4 / -11 <...> -3 / +3 4 Partial
05-04 08:05 20m - / +8 <...> -1 / - 10 Partial
05-04 08:02 20m - / -7 RP81ZAM +7 / - 2 Partial
05-04 08:01 20m - / -16 OH6IH -2 / - 2 Partial
05-04 07:58 20m - / -15 <...> 0 / - 3 Partial
05-04 07:54 20m - / -4 <...> -2 / - 2 Partial
05-04 07:36 20m - / -12 VK3TZ +8 / - 7 Partial
05-04 07:26 20m -16 / -4 <...> +4 / -5 5 Partial
05-04 07:21 20m - / -6 <...> -1 / - 3 Partial
05-04 07:18 20m - / -2 RP81A +3 / - 3 Partial
05-04 07:16 20m -2 / -2 <...> -1 / -14 4 Partial
05-04 07:11 20m - / -1 RP81GS +2 / - 4 Partial
05-04 07:08 20m -5 / -6 <...> +5 / -2 6 Partial
05-04 07:04 20m -4 / -4 EC3A +5 / -6 5 ✓ Complete

Station Log

20m 
UTC    dB  Freq  Message
083900  +8  946  R4SF UI5A KO85 (x2)
084045  +2 1697  US1EA R4SF -04
084100 -17  318  R4SF US1EA KN78
084115  -1 1697  US1EA R4SF -03 (x2)
084200  -6  947  R4SF UI5A KO85
084215  +1 1697  UI5A R4SF -18
084230  +1  946  R4SF UI5A R-15
084245  -1 1697  UI5A R4SF -18
084300  +4  946  R4SF UI5A R-15
084315  -2 1697  EA8UP R4SF -13
084330  +8  946  R4SF UI5A R-15
084345  +4 1697  EA8UP R4SF -13 (x2)
40m 
UTC    dB  Freq  Message
062200  -5 1079  R4SF RW2Z KO81 (x3)
062730 -16 2080  R4SF R2GBR RR73
063030 -10 2623  R4SF RK2Z R-18 (x2)
055815 -17 1734  R4SF EU1FQ KO33 (x3)
050600  -5  794  R4SF <...> -18
050730 -17 2067  R4SF RP81OZR R-01
121700  +4 1518  R4SF <...> R-09 (x2)
051945 -10 1584  R4SF SN1A -18
052200  -6 1062  R4SF <...> R-02

SNR History by Band