JH3UHG — FT8 station from Japan
Amateur radio station JH3UHG operating from Japan. 209 FT8 spots received at SO8OO WebSDR, 4 CQ calls, active on 20m, over 20 days, best SNR +25 dB. Heard between 2026-04-21 and 2026-06-11.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
209
Total spots
4
CQ calls
20
Days active
-2 dB
Avg SNR
Bands
20m
First seen: 2026-04-21
Last seen: 2026-06-11 15:09 UTC
Last seen: 2026-06-11 15:09 UTC
Frequent QSO partners observed at SO8OO
Stations JH3UHG worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JH3UHG | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-11 17:09 | 20m | +9 / - | 5Z4VJ | - / -6 | 2 | Partial |
| 06-10 16:01 | 20m | -10 / - | DL5MFS | - / - | 6 | Partial |
| 06-10 15:48 | 20m | -5 / - | UA3ZQN | - / - | 3 | ✓ Confirmed |
| 06-10 15:47 | 20m | -16 / - | SV9ANC | - / -13 | 3 | ✓ Confirmed |
| 06-05 17:14 | 20m | - / - | 7X2KF | -20 / - | 2 | Partial |
| 06-05 16:01 | 20m | +5 / - | TA3ZZ | - / - | 2 | ✓ Confirmed |
| 06-05 15:24 | 20m | - / - | JA3SIA | -5 / - | 2 | Partial |
| 06-05 15:19 | 20m | - / - | WL7E | -11 / - | 3 | ✓ Confirmed |
| 06-05 15:18 | 20m | +14 / -11 | RU3KV | -8 / -14 | 7 | ✓ Complete |
| 06-05 15:15 | 20m | - / - | ZS6BIL | -14 / - | 2 | Partial |
| 06-05 14:36 | 20m | - / - | LU1EHX | -16 / - | 2 | Partial |
| 06-05 14:31 | 20m | 0 / - | UK8FCM | - / -16 | 2 | ✓ Confirmed |
| 06-04 17:34 | 20m | - / - | MW3FLI | -7 / - | 2 | Partial |
| 06-04 16:57 | 20m | -10 / - | M8KKH | - / - | 3 | Partial |
| 06-04 16:50 | 20m | - / - | A41KB | -7 / - | 7 | Partial |
| 06-04 16:43 | 20m | -8 / - | HB10GBT | - / -7 | 3 | Partial |
| 06-04 15:43 | 20m | -9 / - | 7Q7CT | - / -12 | 3 | ✓ Confirmed |
| 06-02 18:40 | 20m | - / - | YI5THA | -8 / - | 4 | Partial |
| 06-02 18:37 | 20m | - / - | D2UY | -11 / - | 2 | Partial |
| 05-30 18:40 | 20m | +2 / -14 | Z62NS | -12 / +1 | 5 | ✓ Complete |
| 05-29 17:00 | 20m | +7 / - | R6OP | - / - | 2 | Partial |
| 05-29 16:49 | 20m | - / -12 | 9M2RTX | -10 / - | 4 | Partial |
| 05-29 16:46 | 20m | - / -12 | ER3CT | -12 / - | 3 | ✓ Confirmed |
| 05-29 16:43 | 20m | -16 / - | RY7G | - / -13 | 2 | ✓ Confirmed |
| 05-24 17:16 | 20m | - / - | OZ9FF | -17 / - | 5 | Partial |
| 05-24 17:09 | 20m | +5 / - | SV1EAG | - / -20 | 2 | ✓ Confirmed |
| 05-24 17:04 | 20m | -8 / - | HZ1TT | - / -11 | 2 | ✓ Confirmed |
| 05-24 16:58 | 20m | -4 / - | TL8BNW | -9 / -15 | 3 | ✓ Verified |
| 05-24 16:49 | 20m | - / - | GM3JIM | -12 / - | 2 | Partial |
| 05-23 18:23 | 20m | 0 / - | EA5EM | - / - | 2 | Partial |
| 05-23 18:23 | 20m | +3 / - | RU3QR | - / -11 | 3 | ✓ Confirmed |
| 05-23 18:23 | 20m | -4 / - | EA1CQ | - / - | 2 | Partial |
| 05-23 18:21 | 20m | +19 / - | SV2AJX | - / -12 | 3 | ✓ Confirmed |
| 05-23 18:17 | 20m | +2 / - | YU7XL | - / -20 | 4 | ✓ Confirmed |
| 05-23 18:14 | 20m | +12 / - | DL7JU | - / -24 | 5 | ✓ Confirmed |
| 05-23 18:12 | 20m | +12 / - | YO8RQP | - / -11 | 3 | ✓ Confirmed |
| 05-23 18:05 | 20m | 0 / - | YO3EGE | - / - | 3 | Partial |
| 05-23 18:02 | 20m | +6 / - | SV5BYP | -17 / -19 | 3 | ✓ Verified |
| 05-23 17:51 | 20m | - / - | 7X3WPL | -17 / - | 2 | Partial |
| 05-23 17:21 | 20m | - / - | CT2GFJ | -17 / - | 5 | Partial |
| 05-23 16:31 | 20m | -3 / - | UA3FO | - / -4 | 6 | Partial |
| 05-23 16:16 | 20m | -4 / - | DK8RE | -16 / -16 | 4 | ✓ Verified |
| 05-22 18:40 | 20m | +4 / - | IK4TVP | - / -10 | 3 | ✓ Confirmed |
| 05-22 18:39 | 20m | -7 / - | LX2SM | - / -9 | 2 | ✓ Confirmed |
| 05-22 18:32 | 20m | +4 / - | DJ7JB | - / - | 4 | Partial |
| 05-22 18:32 | 20m | -3 / -25 | MM0JTV | -19 / -25 | 4 | Partial |
| 05-22 18:17 | 20m | +4 / -11 | EA8UP | -11 / -17 | 5 | ✓ Complete |
| 05-21 16:18 | 20m | -4 / - | SP2GK | - / - | 3 | Partial |
| 05-20 18:26 | 20m | -14 / - | F5RRS | - / -8 | 3 | ✓ Confirmed |
| 05-20 17:49 | 20m | - / - | IS0KNG | -22 / - | 2 | Partial |
Station Log
20m
UTC dB Freq Message 153100 -12 629 JH3UHG UA3ZQN KO90 154730 -20 1876 JH3UHG SV9ANC -13 154800 -2 373 JH3UHG UA3ZQN KO90 154800 -14 1876 JH3UHG SV9ANC RR73 154930 -2 373 JH3UHG UA3ZQN KO90 154930 -14 1876 JH3UHG SV9ANC RR73 155100 -10 373 JH3UHG UA3ZQN 73 160115 -8 279 JH3UHG DL5MFS JN58 (x6) 170900 +7 427 JH3UHG 5Z4VJ -06 (x2)