JH3CUL — FT8 station from Japan
Amateur radio station JH3CUL operating from Japan (grid square IO75). 22 FT8 spots received at SO8OO WebSDR, active on 20m, 10m, over 7 days, best SNR +15 dB. Heard between 2026-04-24 and 2026-05-30.
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Overview
22
Total spots
0
CQ calls
7
Days active
-8 dB
Avg SNR
Bands
20m
10m
First seen: 2026-04-24
Last seen: 2026-05-30 08:13 UTC
Last seen: 2026-05-30 08:13 UTC
Frequent QSO partners observed at SO8OO
Stations JH3CUL worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JH3CUL | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 05-29 13:10 | 20m | - / -21 | W3US | -15 / - | 2 | ✓ Confirmed |
| 05-29 13:07 | 20m | - / - | KF0ARQ | -14 / - | 4 | Partial |
| 05-29 13:06 | 20m | - / - | K9HEI | -16 / - | 2 | Partial |
| 05-29 13:03 | 20m | - / - | KE7WVV | -12 / - | 2 | Partial |
| 05-29 10:50 | 20m | -4 / - | K4RUM | - / +5 | 2 | ✓ Confirmed |
| 05-29 09:59 | 10m | -8 / - | 7Q9PTP | - / +2 | 2 | ✓ Confirmed |
| 05-29 00:48 | 20m | -3 / - | HZ1TT | - / -12 | 3 | ✓ Confirmed |
| 05-27 12:19 | 20m | - / -12 | WB0IWG | -20 / - | 2 | ✓ Confirmed |
| 05-22 13:53 | 20m | - / - | E70SZ | +5 / - | 4 | Partial |
| 05-22 13:52 | 20m | - / -25 | UT5MD | +2 / - | 3 | ✓ Confirmed |
| 05-22 13:49 | 20m | +15 / - | EU4U | 0 / -9 | 2 | Partial |
| 05-22 13:41 | 20m | - / - | EX8ABR/P | -7 / - | 7 | Partial |
| 05-22 13:31 | 20m | -9 / - | HZ1OL | -6 / +2 | 3 | Partial |
| 05-22 13:22 | 20m | +2 / - | OH3MB | - / - | 2 | ✓ Confirmed |
| 05-22 13:18 | 20m | - / -21 | OH3MB | -7 / - | 3 | Partial |
| 05-17 11:30 | 20m | -18 / - | R9FFT | - / - | 2 | Partial |
| 05-11 23:23 | 20m | - / - | A92AE | -16 / - | 4 | Partial |
| 05-11 23:19 | 20m | - / -14 | TB7HBY | -5 / - | 3 | ✓ Confirmed |
| 05-11 23:17 | 20m | - / -9 | DK2LG | -2 / - | 3 | ✓ Confirmed |
| 04-24 06:53 | 10m | -14 / - | A41ZZ | - / -6 | 2 | Partial |
| 04-24 06:52 | 10m | -12 / - | EX8ABR | - / +2 | 2 | ✓ Confirmed |
Station Log
20m
UTC dB Freq Message 105115 -5 2978 JH3CUL K4RUM RR73 114700 -23 1282 W9JJB JH3CUL PM74 121230 -18 1282 W8ASH JH3CUL PM74 122245 -19 1282 W9DHI JH3CUL PM74 130345 -10 2377 KE7WVV JH3CUL PM74 (x2) 130615 -17 2378 K9HEI JH3CUL PM74 (x2) 130745 -14 2378 KF0ARQ JH3CUL PM74 (x4) 131045 -15 2378 W3US JH3CUL R-21 (x2) 101345 -20 1791 JH3CUL GM0SDV IO75
10m
UTC dB Freq Message 065230 -12 1779 JH3CUL EX8ABR +02 (x2) 065330 -12 928 JH3CUL A41ZZ -06 (x2) 095900 -9 2276 JH3CUL 7Q9PTP +02 (x2)