JH4BYZ — FT8 station from Japan
Amateur radio station JH4BYZ operating from Japan. 206 FT8 spots received at SO8OO WebSDR, 63 CQ calls, active on 40m, 20m, over 22 days, best SNR +29 dB. Heard between 2026-04-21 and 2026-05-14.
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Overview
206
Total spots
63
CQ calls
22
Days active
-3 dB
Avg SNR
Bands
20m
40m
First seen: 2026-04-21
Last seen: 2026-05-14 18:32 UTC
Last seen: 2026-05-14 18:32 UTC
Frequent QSO partners observed at SO8OO
Stations JH4BYZ worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JH4BYZ | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 05-14 12:34 | 20m | +23 / -7 | RN6MA | -19 / -10 | 2 | Partial |
| 05-14 12:28 | 20m | - / - | YI5THA | -12 / - | 3 | Partial |
| 05-13 20:30 | 40m | +3 / - | IZ5CMG | - / -24 | 5 | Partial |
| 05-13 20:29 | 40m | -5 / - | HB9TIH | - / - | 5 | Partial |
| 05-13 13:09 | 20m | -14 / - | R3AP | -15 / - | 2 | ✓ Verified |
| 05-12 20:41 | 20m | - / - | TA1SY | -9 / - | 2 | ✓ Confirmed |
| 05-12 20:38 | 20m | - / -10 | OK1FAN | -4 / - | 3 | ✓ Confirmed |
| 05-12 20:34 | 20m | - / - | 9H4JX | -9 / - | 5 | Partial |
| 05-12 20:28 | 20m | - / -16 | DL1RPR | -3 / - | 2 | ✓ Confirmed |
| 05-12 20:26 | 20m | +5 / - | F4GPB | -8 / -11 | 4 | ✓ Verified |
| 05-12 12:13 | 20m | +3 / - | UN8DAW | - / -15 | 2 | ✓ Confirmed |
| 05-11 20:38 | 20m | - / -21 | S50DX | -12 / - | 2 | ✓ Confirmed |
| 05-11 20:29 | 20m | - / - | UT5ECZ | -12 / - | 2 | Partial |
| 05-11 20:28 | 20m | - / -11 | SV2JU | -11 / - | 2 | ✓ Confirmed |
| 05-10 21:01 | 20m | - / -10 | ZL1VAH | -12 / - | 2 | ✓ Confirmed |
| 05-10 20:58 | 20m | - / -15 | OE3UKW | -11 / - | 3 | ✓ Confirmed |
| 05-10 20:56 | 20m | - / -17 | TA3NK | -8 / - | 3 | ✓ Confirmed |
| 05-10 20:52 | 20m | - / -19 | SP8ADU | -8 / - | 3 | ✓ Confirmed |
| 05-09 20:37 | 20m | - / - | 5B4ALS | -9 / - | 2 | Partial |
| 05-09 20:21 | 20m | -6 / - | IT9JLP | - / -16 | 2 | Partial |
| 05-08 20:45 | 20m | - / - | LU6HOG | -2 / - | 2 | Partial |
| 05-08 12:06 | 20m | -11 / - | F1PSX | - / - | 2 | Partial |
| 05-08 12:02 | 20m | +11 / - | R4FDD | - / -12 | 3 | ✓ Confirmed |
| 05-06 20:36 | 20m | - / -23 | UB3DYU | -6 / - | 5 | ✓ Confirmed |
| 05-06 20:21 | 20m | -6 / - | TF4M | -17 / -12 | 3 | ✓ Verified |
| 05-04 20:35 | 40m | -4 / - | <...> | - / -14 | 5 | Partial |
| 05-04 11:36 | 20m | - / -4 | B6CRA | -18 / - | 2 | ✓ Confirmed |
| 05-03 21:13 | 20m | 0 / - | TA2EE | - / - | 2 | Partial |
| 05-03 20:54 | 20m | - / - | EA8BYZ | -12 / - | 6 | Partial |
| 05-03 20:47 | 20m | - / - | <...> | -8 / - | 2 | Partial |
| 05-03 20:42 | 20m | - / - | PD5S | -11 / - | 2 | Partial |
| 05-03 20:39 | 20m | - / -16 | OZ9TAN | -6 / - | 4 | ✓ Confirmed |
| 05-03 20:36 | 20m | - / -7 | PE2LZ | +3 / - | 4 | ✓ Confirmed |
| 05-03 20:30 | 20m | - / - | IU4TQQ | +2 / - | 2 | ✓ Confirmed |
| 05-02 20:57 | 20m | +11 / - | EA5JLB | - / -11 | 9 | Partial |
| 05-02 20:56 | 20m | +5 / - | EA5OM | - / - | 3 | Partial |
| 05-02 20:52 | 20m | +3 / - | EA5OM | - / - | 4 | Partial |
| 05-02 20:51 | 20m | - / -11 | YU1NTP | -2 / - | 2 | ✓ Confirmed |
| 05-02 20:29 | 20m | - / -13 | SP9SOS | +4 / - | 2 | ✓ Confirmed |
| 05-02 20:25 | 20m | - / -13 | OP9T | +7 / - | 5 | ✓ Confirmed |
| 05-02 20:24 | 20m | - / -16 | SP6MPG | +6 / - | 2 | ✓ Confirmed |
| 05-02 20:22 | 20m | - / -15 | DL3MCW | +2 / - | 3 | ✓ Confirmed |
| 05-02 20:19 | 20m | - / -17 | SP4ZM | -2 / - | 4 | ✓ Confirmed |
| 05-02 20:14 | 20m | - / - | A92AE | +1 / - | 3 | Partial |
| 05-02 13:49 | 20m | - / - | A92AE | -12 / - | 2 | Partial |
| 05-01 20:43 | 40m | -10 / - | <...> | - / -4 | 3 | Partial |
| 04-30 12:17 | 20m | +8 / - | RA4ABH | - / -4 | 3 | Partial |
| 04-30 11:56 | 20m | +6 / - | F5MXH | - / - | 2 | Partial |
| 04-29 23:45 | 20m | - / - | BD6JMQ | -12 / - | 2 | ✓ Confirmed |
| 04-28 20:56 | 20m | +3 / - | EA4GA | - / - | 2 | ✓ Confirmed |
Station Log
20m
UTC dB Freq Message 134745 -7 338 CQ JH4BYZ PM64 204630 -2 2081 JH4BYZ IQ8DL RR73 205915 -9 2977 CQ JH4BYZ PM64 205945 -6 2977 <...> JH4BYZ PM64 210045 -7 2977 <DL70ESSEN> JH4BYZ PM64 122800 -10 326 YI5THA JH4BYZ PM64 (x3) 123045 -8 326 <...> JH4BYZ PM64 123415 -18 327 CQ JH4BYZ PM64 123430 +23 326 JH4BYZ RN6MA -10 123445 -19 326 RN6MA JH4BYZ R-07 203230 +0 415 JH4BYZ EB7HQE 73 204215 -14 327 CQ JH4BYZ PM64 204245 -14 327 PD0OTH JH4BYZ -12
40m
UTC dB Freq Message 203545 -4 2560 JH4BYZ <...> -14 (x5) 202900 -4 1465 JH4BYZ HB9TIH JN36 (x2) 203030 +1 1185 JH4BYZ IZ5CMG -24 203030 -4 1465 JH4BYZ HB9TIH JN36 (x2) 203100 +4 1185 JH4BYZ IZ5CMG -24 (x2) 203130 -7 1465 JH4BYZ HB9TIH JN36 203200 +2 1185 JH4BYZ IZ5CMG -24 (x2)