JF3SFU — FT8 station from Japan
Amateur radio station JF3SFU operating from Japan. 18 FT8 spots received at SO8OO WebSDR, active on 80m, 40m, 20m, over 8 days, best SNR +20 dB. Heard between 2026-04-21 and 2026-06-19.
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Overview
18
Total spots
0
CQ calls
8
Days active
-3 dB
Avg SNR
Bands
80m
40m
20m
First seen: 2026-04-21
Last seen: 2026-06-19 21:14 UTC
Last seen: 2026-06-19 21:14 UTC
Frequent QSO partners observed at SO8OO
Stations JF3SFU worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JF3SFU | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-19 23:13 | 20m | -12 / - | RI0SP | - / -20 | 2 | ✓ Confirmed |
| 06-11 22:24 | 40m | -14 / - | 9X5KM | - / -13 | 2 | Partial |
| 06-10 22:51 | 20m | +4 / - | 9X5KM | - / -14 | 3 | Partial |
| 05-04 15:34 | 40m | -7 / - | DL2MEL | - / - | 2 | Partial |
| 05-02 15:38 | 20m | - / - | UA0LQE | -10 / - | 2 | ✓ Confirmed |
| 05-02 15:37 | 20m | - / -17 | OH3OJ | -10 / - | 2 | ✓ Confirmed |
| 04-27 16:52 | 40m | -3 / - | RK4FF | - / -15 | 3 | ✓ Confirmed |
| 04-23 15:05 | 40m | -10 / - | R3KF | - / -15 | 2 | ✓ Confirmed |
| 04-21 19:12 | 80m | 0 / - | RA3CQ | - / -12 | 2 | ✓ Confirmed |
Station Log
20m
UTC dB Freq Message 153645 -12 2850 <...> JF3SFU R-13 153745 -13 2850 OH3OJ JF3SFU R-17 (x2) 153845 -9 2850 UA0LQE JF3SFU +00 (x2) 162430 +20 2978 JF3SFU ON6AA JO11 225130 +4 804 JF3SFU 9X5KM -14 (x3) 231345 -12 809 JF3SFU RI0SP -20 (x2)
40m
UTC dB Freq Message 150530 -13 1621 JF3SFU R3KF -15 (x2) 165200 -1 2121 JF3SFU RK4FF -15 (x3) 153400 -10 1905 JF3SFU DL2MEL JN58 (x2) 222400 -13 797 JF3SFU 9X5KM -13 (x2)
80m
UTC dB Freq Message 191230 +1 2044 JF3SFU RA3CQ -12 (x2) 194115 +10 2869 JF3SFU 4L3YL LN21