JF0CSK — FT8 station from Japan

Japan Grid: JO42

Amateur radio station JF0CSK operating from Japan (grid square JO42). 113 FT8 spots received at SO8OO WebSDR, active on 60m, 40m, 20m, 10m, over 22 days, best SNR +11 dB. Heard between 2026-05-01 and 2026-06-26.

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

Overview

113
Total spots
0
CQ calls
22
Days active
-6 dB
Avg SNR

Bands

20m 40m 10m 60m
First seen: 2026-05-01
Last seen: 2026-06-26 18:37 UTC

Frequent QSO partners observed at SO8OO

Stations JF0CSK worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJF0CSKPartnerPartner SNRMsgs
06-26 20:36 20m -12 / - DL0BSO - / - 4 Partial
06-25 21:08 20m - / - HB9MEJ -16 / - 3 Partial
06-25 20:40 20m - / -24 OK1CYC -13 / - 2 ✓ Confirmed
06-24 20:43 20m -6 / - F1SZC -14 / -15 4 ✓ Verified
06-24 20:40 20m - / - HB9TJG -20 / - 3 Partial
06-24 19:45 20m +2 / - IU4RWW - / -5 4 ✓ Confirmed
06-24 19:43 20m -12 / - HB9HHH -20 / -22 3 ✓ Verified
06-24 19:22 40m -8 / - R7OP - / +10 3 ✓ Confirmed
06-22 20:37 20m 0 / - M0KSD - / -11 6 ✓ Confirmed
06-22 20:33 20m -12 / - CT1FIU - / -22 3 Partial
06-22 20:05 20m -16 / - PD0MNO - / -13 2 Partial
06-22 19:46 40m -18 / - RL3K - / - 2 Partial
06-22 19:46 40m -15 / - RN6HK - / -8 3 ✓ Confirmed
06-22 19:41 40m -9 / - R6LPF - / -19 3 ✓ Confirmed
06-20 20:49 40m +4 / - EA7ST - / -20 2 Partial
06-20 20:31 20m - / -16 ON7VZ -15 / - 3 ✓ Confirmed
06-20 20:06 20m +9 / - G4CFS - / -15 4 ✓ Confirmed
06-20 19:35 40m -10 / - SQ4WMA - / - 3 Partial
06-20 19:34 40m -6 / - OE1SGU - / -21 2 ✓ Confirmed
06-20 19:28 40m -4 / - S52DD - / -12 2 ✓ Confirmed
06-19 22:25 20m +2 / -7 <...> -2 / -10 4 Partial
06-19 18:18 20m - / -9 LY1DX -1 / - 3 ✓ Confirmed
06-19 17:49 20m - / -12 SP5LST -2 / - 2 ✓ Confirmed
06-19 17:48 20m -14 / - BA8BLK - / -5 2 Partial
06-19 17:47 20m - / - ES0IA -2 / - 3 ✓ Confirmed
06-19 17:46 20m - / -10 UB8QAD -3 / - 2 ✓ Confirmed
06-19 17:42 20m -16 / - TA3XEE - / - 2 Partial
06-19 17:36 20m - / -19 RG6ZF -4 / - 2 ✓ Confirmed
06-19 17:34 20m - / -12 SP6FME -3 / - 2 Partial
06-19 17:32 20m +7 / - SV1EGE -6 / -11 6 ✓ Verified
06-19 17:31 20m - / -14 IZ2DPX -2 / - 3 ✓ Confirmed
06-19 17:06 20m - / - TF3VS -4 / - 4 Partial
06-19 13:43 20m +1 / - RA4HG - / -12 4 Partial
06-19 13:22 20m -15 / - BG4UCZ - / - 2 Partial
06-18 14:28 20m - / - 7Q5MLV -6 / - 6 Partial
06-17 21:41 20m - / -13 TJ1GD/P -5 / - 5 Partial
06-13 02:58 20m +8 / - LY7T - / +8 2 ✓ Confirmed
06-03 15:13 20m -18 / - EC3A - / - 2 Partial
06-03 05:38 20m -2 / - KM3V - / -13 2 ✓ Confirmed
06-01 11:34 20m -19 / - GM0SDV - / +2 4 Partial
05-22 14:26 20m -10 / - IK1LZF - / - 3 Partial
05-20 05:27 20m -7 / - WP4U - / -19 3 Partial
05-18 05:06 20m - / - LY5W -21 / - 2 Partial
05-18 03:49 20m -18 / - R7DX - / -15 2 Partial
05-07 13:22 20m +8 / - UA4FKT - / - 4 Partial
05-03 22:10 60m +3 / - PI4DX - / - 5 Partial
05-01 14:18 20m - / -16 KA4WAY -20 / - 2 ✓ Confirmed

Station Log

20m 
UTC    dB  Freq  Message
204345  -5 1978  JF0CSK F1SZC R-15
204400 -14 2387  F1SZC JF0CSK RR73
204415  -2 1978  JF0CSK F1SZC 73
204045 -12 2386  OK1CYC JF0CSK -24 (x2)
204600 -16 2385  JF0CSK G7FSI RR73
210815 -13 2285  HB9MEJ JF0CSK PM86 (x3)
203145 -20 1390  JF0CSK UT5UOD KO50
203500 -12 2180  JF0CSK EA1DP RR73
203600 -18 1378  JF0CSK DL0BSO JO42 (x4)
40m 
UTC    dB  Freq  Message
204900  +3  788  JF0CSK EA7ST R-20 (x2)
194115 -11 2446  JF0CSK R6LPF KN97 (x3)
194545 -17 1832  JF0CSK IW6MXV RR73
194615 -15 1945  JF0CSK RN6HK LN14 (x2)
194645 -19 2094  JF0CSK RL3K KO91
194715 -14 1945  JF0CSK RN6HK 73
194845 -16 2093  JF0CSK RL3K KO91
192215  -7 2245  JF0CSK R7OP KN98 (x3)
192945  -3 2780  JF0CSK EA3FCQ RR73
10m 
UTC    dB  Freq  Message
084930  -7  491  JF0CSK 5H1KB -18
60m 
UTC    dB  Freq  Message
221045  +5 1103  JF0CSK PI4DX JO21 (x5)

SNR History by Band