JH7CSU — FT8 station from Japan
Amateur radio station JH7CSU operating from Japan. 305 FT8 spots received at SO8OO WebSDR, 24 CQ calls, active on 80m, 40m, 20m, 10m, over 11 days, best SNR +21 dB. Heard between 2026-04-22 and 2026-05-13.
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Overview
305
Total spots
24
CQ calls
11
Days active
-4 dB
Avg SNR
Bands
80m
20m
40m
10m
First seen: 2026-04-22
Last seen: 2026-05-13 19:44 UTC
Last seen: 2026-05-13 19:44 UTC
Frequent QSO partners observed at SO8OO
Stations JH7CSU worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JH7CSU | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 05-13 21:43 | 20m | +9 / - | F4JVF | - / -13 | 3 | ✓ Confirmed |
| 05-13 21:02 | 20m | -8 / - | F6FDY | - / -17 | 2 | Partial |
| 05-13 20:50 | 20m | +6 / - | SV1HFE | - / -17 | 3 | ✓ Confirmed |
| 05-12 21:36 | 20m | +6 / - | EA5BLP | -11 / -18 | 4 | ✓ Verified |
| 05-12 21:33 | 20m | +7 / -14 | 9H4JX | -11 / -12 | 2 | Partial |
| 05-12 21:24 | 20m | - / - | 9H4JX | -15 / - | 5 | Partial |
| 05-12 21:07 | 20m | -14 / - | EA2DP | - / -20 | 2 | ✓ Confirmed |
| 05-12 21:06 | 20m | +1 / - | EA4BPO | - / - | 4 | Partial |
| 05-12 21:03 | 20m | - / -16 | SM7HWD | -16 / - | 2 | ✓ Confirmed |
| 05-12 20:57 | 20m | -2 / - | EA3KE | - / -8 | 3 | ✓ Confirmed |
| 05-12 20:52 | 20m | -3 / - | EA3ELW | - / -16 | 3 | ✓ Confirmed |
| 05-12 20:41 | 20m | +2 / - | IW9EWX | - / -16 | 3 | ✓ Confirmed |
| 05-12 20:28 | 20m | -5 / - | EA7EZ | - / -9 | 3 | ✓ Confirmed |
| 05-12 20:27 | 20m | -8 / - | 4L3YL | - / -19 | 2 | Partial |
| 05-12 20:16 | 20m | +2 / - | LA3SHA | - / -9 | 2 | ✓ Confirmed |
| 05-12 20:08 | 20m | -7 / - | F4MXU | - / -21 | 3 | ✓ Confirmed |
| 05-12 20:06 | 20m | -3 / - | IS0LYN | - / -8 | 2 | Partial |
| 05-12 15:14 | 20m | +5 / - | F5RRS | - / - | 3 | Partial |
| 05-12 15:08 | 20m | -2 / - | RA3AHN | - / -2 | 3 | ✓ Confirmed |
| 05-12 15:06 | 20m | -14 / - | HA1DLI | - / - | 4 | Partial |
| 05-12 15:06 | 20m | -17 / - | RA6FSV | - / -9 | 3 | Partial |
| 05-01 14:51 | 20m | - / -3 | K0IEA | -18 / - | 2 | ✓ Confirmed |
| 05-01 14:33 | 20m | - / - | KF5WCP | -18 / - | 3 | Partial |
| 05-01 14:16 | 20m | - / -19 | KA4WAY | -14 / - | 2 | Partial |
| 05-01 14:15 | 20m | 0 / - | MM0JTV | - / - | 4 | Partial |
| 05-01 14:13 | 20m | -8 / - | BG2FYO | - / - | 4 | ✓ Confirmed |
| 05-01 13:56 | 20m | - / - | W4HHN | -19 / - | 2 | Partial |
| 05-01 13:49 | 20m | - / -8 | W5GFM | -16 / - | 2 | ✓ Confirmed |
| 04-29 08:31 | 10m | -16 / - | TL8GD | - / -9 | 4 | Partial |
| 04-28 19:00 | 20m | -12 / - | G8KVP | - / - | 3 | ✓ Confirmed |
| 04-28 18:50 | 40m | 0 / - | DB9THF | - / - | 3 | Partial |
| 04-28 18:45 | 40m | +10 / - | LX1NO | - / -9 | 2 | Partial |
| 04-28 18:44 | 40m | +4 / - | I1YTO | - / - | 5 | Partial |
| 04-28 18:39 | 40m | +8 / - | R6DJR | - / -12 | 2 | Partial |
| 04-28 18:38 | 40m | +13 / - | IQ4JO | - / -23 | 3 | ✓ Confirmed |
| 04-28 18:31 | 40m | +17 / - | R7KDW | - / -19 | 2 | ✓ Confirmed |
| 04-28 18:30 | 40m | -12 / - | LG5LG | - / -23 | 2 | Partial |
| 04-27 21:16 | 20m | +18 / - | MD0CCE | -6 / -18 | 12 | ✓ Verified |
| 04-26 15:11 | 20m | -3 / - | RN1QG | - / -5 | 4 | Partial |
| 04-26 15:08 | 20m | -2 / - | RN1QG | - / - | 2 | Partial |
| 04-26 06:50 | 10m | -2 / - | A71AT | - / -10 | 2 | ✓ Confirmed |
| 04-25 18:13 | 20m | +3 / -14 | F4FSY | -17 / -3 | 3 | ✓ Complete |
| 04-25 18:10 | 20m | - / -11 | DL3RAJ | -16 / - | 5 | ✓ Confirmed |
| 04-25 18:07 | 20m | +5 / - | TA2GG | -17 / -21 | 8 | ✓ Verified |
| 04-25 18:05 | 20m | -1 / - | SV1MOZ | -19 / -7 | 4 | ✓ Verified |
| 04-25 18:01 | 20m | -1 / - | EA3ML | - / -14 | 3 | ✓ Confirmed |
| 04-25 17:57 | 20m | -11 / - | EB5IBZ | - / -16 | 2 | ✓ Confirmed |
| 04-25 17:57 | 20m | -13 / - | F5PBG | - / - | 2 | Partial |
| 04-25 17:49 | 20m | -6 / - | EB3JT | - / -14 | 8 | ✓ Confirmed |
| 04-25 17:42 | 20m | -8 / - | F6BHK | - / -15 | 5 | Partial |
Station Log
20m
UTC dB Freq Message 210545 -8 1783 JH7CSU EA3EQS 73 210600 -13 2528 CQ JH7CSU PM95 (x2) 210830 -15 2528 WB7AEU JH7CSU RR73 210930 -16 2528 CQ JH7CSU PM95 (x2) 211630 -12 2529 IU2PKC JH7CSU RR73 211730 -16 2528 CQ JH7CSU PM95 (x4) 214330 +11 2078 JH7CSU F4JVF IN95 (x3) 215315 -18 2079 UX7QV JH7CSU -20
10m
UTC dB Freq Message 065045 -4 1064 JH7CSU A71AT -10 (x2) 083100 -17 2280 JH7CSU TL8GD -09 (x4)
40m
UTC dB Freq Message 183845 +11 2575 JH7CSU IQ4JO JN63 183915 +10 2808 JH7CSU R6DJR -12 183915 +14 2575 JH7CSU IQ4JO R-23 183945 +6 2807 JH7CSU R6DJR -12 183945 +14 2575 JH7CSU IQ4JO 73 184445 +0 2991 JH7CSU I1YTO JN44 184545 +11 2075 JH7CSU LX1NO -09 184545 +3 2991 JH7CSU I1YTO JN44 184615 +9 2075 JH7CSU LX1NO RRR 184615 +5 2991 JH7CSU I1YTO JN44 (x3) 185045 +1 2907 JH7CSU DB9THF JO62 (x3)
80m
UTC dB Freq Message 182000 -2 1994 JH7CSU RA3CQ KO85 191900 -2 2324 JH7CSU 4Z5AV KM71 (x3)