JF4VZT — FT8 station from Japan
Amateur radio station JF4VZT operating from Japan. 170 FT8 spots received at SO8OO WebSDR, active on 160m, 80m, 40m, 20m, over 13 days, best SNR +19 dB. Heard between 2026-04-21 and 2026-06-27.
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Overview
170
Total spots
0
CQ calls
13
Days active
-3 dB
Avg SNR
Bands
80m
40m
20m
160m
First seen: 2026-04-21
Last seen: 2026-06-27 17:24 UTC
Last seen: 2026-06-27 17:24 UTC
Frequent QSO partners observed at SO8OO
Stations JF4VZT worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JF4VZT | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-27 19:23 | 80m | +8 / - | YO4NT | -12 / -10 | 3 | ✓ Verified |
| 06-25 20:55 | 20m | - / -14 | BG4LNW | -4 / - | 2 | ✓ Confirmed |
| 06-25 20:51 | 20m | - / -8 | 9J2FI | -6 / - | 4 | ✓ Confirmed |
| 06-24 20:22 | 20m | -15 / - | SV1MOZ | - / - | 2 | Partial |
| 06-15 20:39 | 20m | -4 / -17 | 7X5CY | -6 / -1 | 7 | ✓ Complete |
| 06-14 20:38 | 20m | -16 / -16 | DB5BC | +10 / - | 3 | ✓ Verified |
| 06-14 20:36 | 20m | -16 / - | EA1FUB | - / - | 9 | Partial |
| 06-14 20:36 | 20m | - / -16 | IK1LJO | +14 / - | 2 | ✓ Confirmed |
| 06-14 20:33 | 20m | +12 / -8 | OE3UKW | +13 / - | 4 | ✓ Complete |
| 06-14 20:32 | 20m | - / -13 | BA6IM | +16 / - | 2 | ✓ Confirmed |
| 06-14 20:29 | 20m | +2 / - | M7LYG | - / - | 8 | Partial |
| 06-14 20:28 | 20m | +7 / -9 | EA1B | +17 / -22 | 6 | ✓ Complete |
| 06-14 20:27 | 20m | - / -15 | F1HFP | +18 / - | 2 | ✓ Confirmed |
| 06-14 20:26 | 20m | +4 / -3 | EW4IDP | +13 / -8 | 4 | ✓ Complete |
| 06-14 20:25 | 20m | +5 / -13 | R3DCM | +15 / - | 4 | ✓ Verified |
| 06-14 20:24 | 20m | - / -6 | BD7KWU | +18 / - | 2 | ✓ Confirmed |
| 06-14 20:23 | 20m | - / -5 | SP5SO | +17 / - | 2 | ✓ Confirmed |
| 06-14 20:21 | 20m | - / - | EW4IDP | +14 / - | 2 | Partial |
| 06-14 20:19 | 20m | -9 / -14 | G4DBW | +14 / -3 | 5 | ✓ Complete |
| 06-14 20:19 | 20m | - / -14 | CE2EP | +20 / - | 2 | ✓ Confirmed |
| 06-14 20:18 | 20m | -2 / - | US3LX | +14 / -2 | 8 | ✓ Complete |
| 06-14 20:17 | 20m | - / -14 | BA8BLK | +19 / - | 2 | ✓ Confirmed |
| 06-14 20:16 | 20m | -10 / - | HB9VAA | - / - | 2 | Partial |
| 06-14 20:15 | 20m | 0 / -12 | DK1MCS | +19 / -3 | 5 | ✓ Complete |
| 06-14 20:14 | 20m | - / -17 | TA9M | +18 / - | 3 | ✓ Confirmed |
| 06-13 18:59 | 160m | -9 / - | OM2WQ | - / - | 3 | Partial |
| 06-09 19:22 | 40m | +3 / - | LB7ZG | - / - | 2 | Partial |
| 06-09 19:21 | 40m | +8 / - | S54E | - / -7 | 2 | Partial |
| 06-09 19:08 | 80m | +7 / - | SP4ALA | - / - | 5 | Partial |
| 05-13 19:15 | 160m | -2 / - | R6ZW | - / -12 | 3 | ✓ Confirmed |
| 05-05 19:40 | 160m | -6 / - | PA3DUU | - / - | 5 | Partial |
| 05-05 19:39 | 160m | -14 / - | SN6P | - / - | 9 | Partial |
| 05-05 19:38 | 160m | +10 / -21 | IR0RV | -14 / -9 | 5 | ✓ Complete |
| 05-05 19:32 | 160m | -7 / - | SN6P | - / - | 4 | Partial |
| 05-05 19:32 | 160m | -12 / - | PA3DUU | - / - | 2 | Partial |
| 05-05 19:28 | 160m | +11 / - | HA5AO | -8 / -8 | 5 | ✓ Verified |
| 05-05 19:27 | 160m | -17 / - | UA3ZNQ | -8 / -14 | 4 | ✓ Verified |
| 05-05 19:27 | 160m | -11 / - | ER3UA | - / - | 10 | Partial |
| 05-05 19:26 | 160m | - / -15 | UA4FEN | -8 / - | 2 | ✓ Confirmed |
| 05-05 19:26 | 160m | +4 / -18 | DK3UA | -8 / - | 4 | ✓ Verified |
| 05-05 19:26 | 160m | -7 / - | SN6P | - / - | 6 | Partial |
| 05-05 19:25 | 160m | -9 / - | PA3DUU | - / - | 9 | Partial |
| 05-05 19:23 | 160m | -2 / - | ON8DM | - / - | 3 | Partial |
| 05-05 19:23 | 160m | - / - | R4LQ | -9 / - | 3 | ✓ Confirmed |
| 05-05 19:21 | 160m | -16 / - | PE0JBE | - / - | 2 | Partial |
| 05-05 19:20 | 160m | -6 / -23 | IW4AOT | -13 / -10 | 5 | ✓ Complete |
| 05-05 19:17 | 160m | - / -17 | RN2T | -2 / - | 2 | ✓ Confirmed |
| 05-05 19:15 | 160m | +3 / -18 | YU1LD | -4 / -9 | 9 | ✓ Complete |
| 05-05 19:12 | 160m | +7 / -18 | OM2WQ | -3 / -10 | 7 | ✓ Complete |
| 04-24 22:07 | 40m | 0 / - | A60PE/5 | - / -17 | 2 | Partial |
Station Log
80m
UTC dB Freq Message 201045 -9 2854 SQ2RAD JF4VZT 73 201130 +4 537 JF4VZT RA3OX KO90 201145 -9 2854 SQ2RAD JF4VZT -02 201245 -7 2854 D2UY JF4VZT R-13 (x2) 204615 -4 424 JF4VZT TF4M -08 (x2) 190845 +7 1207 JF4VZT SP4ALA KO04 (x5) 192345 -12 730 YO4NT JF4VZT PM64 192400 +9 1428 JF4VZT YO4NT -10 (x2)
20m
UTC dB Freq Message 204045 -4 906 7X5CY JF4VZT PM64 (x2) 204130 -4 459 JF4VZT 7X5CY -01 204145 -6 906 7X5CY JF4VZT R-17 (x2) 124745 -12 470 W1C JF4VZT PM64 202200 -15 1089 JF4VZT SV1MOZ KM17 (x2) 205130 -6 2796 9J2FI JF4VZT -08 (x4) 205400 -4 2795 BD4UJ JF4VZT RR73 205500 -4 2795 BG4LNW JF4VZT R-14 (x2)
160m
UTC dB Freq Message 194130 -16 1451 JF4VZT SN6P JO80 194200 -9 2120 JF4VZT PA3DUU JO21 194200 -15 1451 JF4VZT SN6P JO80 (x2) 194230 -7 2120 JF4VZT PA3DUU JO21 194300 -13 1451 JF4VZT SN6P JO80 (x2) 191545 +0 2295 JF4VZT R6ZW KN98 (x3) 185230 +4 2022 JF4VZT RA3DA KO95 185245 -10 1205 JF4VZT OM2WQ JN88 (x4)
40m
UTC dB Freq Message 220415 -14 522 JF4VZT ZS1J RR73 220715 +3 1021 JF4VZT A60PE/5 -17 (x2) 191400 -16 2197 TA7MMI JF4VZT PM64 191515 -9 2276 JF4VZT DL2VAH JO71 191945 -2 2028 JF4VZT TA7MMI -11 192115 +8 1040 JF4VZT S54E -07 (x2) 192215 +2 671 JF4VZT LB7ZG JP50 (x2) 203900 -6 775 JF4VZT 9X5KM -07 204100 +1 1219 JF4VZT E71MK JN93