JH4ADV — FT8 station from Japan
Amateur radio station JH4ADV operating from Japan. 61 FT8 spots received at SO8OO WebSDR, active on 160m, 80m, 40m, 20m, over 18 days, best SNR +17 dB. Heard between 2026-04-21 and 2026-06-09.
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Overview
61
Total spots
0
CQ calls
18
Days active
-5 dB
Avg SNR
Bands
80m
20m
40m
160m
First seen: 2026-04-21
Last seen: 2026-06-09 18:30 UTC
Last seen: 2026-06-09 18:30 UTC
Frequent QSO partners observed at SO8OO
Stations JH4ADV worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JH4ADV | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-04 20:23 | 40m | +12 / - | S59A | - / -18 | 2 | ✓ Confirmed |
| 06-02 20:19 | 20m | - / -12 | TL8BNW | +8 / - | 7 | ✓ Confirmed |
| 06-02 20:18 | 20m | -5 / -1 | E77FN | +8 / -8 | 5 | ✓ Complete |
| 06-02 20:17 | 20m | - / -15 | SP7MJX | +8 / - | 2 | ✓ Confirmed |
| 06-02 20:16 | 20m | - / -17 | YT2YZ | +8 / - | 2 | ✓ Confirmed |
| 06-02 20:13 | 20m | -18 / - | BG2EFX | +8 / - | 7 | ✓ Complete |
| 06-02 20:13 | 20m | - / -16 | EP2AES | +9 / - | 3 | ✓ Confirmed |
| 05-31 20:32 | 40m | -16 / - | 4Z5PE | - / -3 | 2 | ✓ Confirmed |
| 05-28 20:27 | 40m | -8 / - | UN0GY | - / -4 | 2 | ✓ Confirmed |
| 05-28 20:20 | 40m | +8 / - | DJ7YP | -14 / -12 | 3 | ✓ Verified |
| 05-27 22:28 | 20m | - / -14 | UN8DSW | -5 / - | 3 | ✓ Confirmed |
| 05-27 22:24 | 20m | -16 / -19 | 4X1VL | +3 / -9 | 2 | Partial |
| 05-27 22:22 | 20m | - / -13 | IT9IJF | +2 / - | 3 | ✓ Confirmed |
| 05-27 22:04 | 20m | -4 / -7 | A92AE | +6 / -11 | 4 | ✓ Complete |
| 05-27 21:58 | 20m | - / -10 | VR2VAZ | +10 / - | 2 | ✓ Confirmed |
| 05-27 21:58 | 20m | -3 / - | EA3/N3CZ | - / - | 2 | Partial |
| 05-27 21:58 | 20m | -4 / - | EC3A | - / -12 | 2 | Partial |
| 05-27 21:56 | 20m | -10 / -13 | SV5BYP | +10 / -9 | 6 | ✓ Complete |
| 05-27 21:42 | 20m | - / -17 | BD7PWV | +6 / - | 5 | ✓ Confirmed |
| 05-27 21:40 | 20m | - / -8 | TT1GD | +7 / - | 3 | ✓ Confirmed |
| 05-26 21:33 | 20m | - / -21 | DL7MDX | -5 / - | 4 | ✓ Confirmed |
| 05-18 20:26 | 40m | +16 / - | DD2ML | - / -16 | 2 | ✓ Confirmed |
| 05-13 20:26 | 40m | -4 / - | EW8AAC | - / -14 | 3 | Partial |
| 05-07 20:13 | 40m | 0 / - | DL6ZXG | - / -10 | 2 | ✓ Confirmed |
| 04-30 20:33 | 40m | +6 / - | UB6OFG | - / - | 3 | Partial |
| 04-30 20:31 | 40m | - / -9 | EW8AAC | +1 / - | 2 | Partial |
| 04-30 20:29 | 40m | -8 / -7 | OE1SGU | -9 / -2 | 5 | ✓ Complete |
| 04-30 20:25 | 40m | -3 / -12 | OK4KOP | -3 / - | 5 | ✓ Verified |
| 04-30 20:23 | 40m | +6 / -5 | SV8DCY | -4 / -2 | 5 | ✓ Complete |
| 04-29 20:16 | 80m | -24 / - | VK5PO | -24 / -3 | 2 | ✓ Verified |
| 04-23 22:01 | 20m | -6 / - | EA1FCR | - / -5 | 2 | ✓ Confirmed |
| 04-23 20:37 | 20m | - / - | VP2MAA | -8 / - | 2 | Partial |
| 04-21 20:05 | 160m | +4 / - | RD6OX | - / -15 | 2 | ✓ Confirmed |
| 04-21 20:05 | 160m | -12 / - | RU3ACA | - / -18 | 2 | Partial |
Station Log
40m
UTC dB Freq Message 202615 +17 2620 JH4ADV DD2ML -16 (x2) 202030 -14 518 DJ7YP JH4ADV PM64 202045 +6 301 JH4ADV DJ7YP -12 (x2) 202145 -9 520 JH4ADV EA1CQ IN83 202730 -8 2772 JH4ADV UN0GY -04 (x2) 212545 -17 1101 JH4ADV UN8DSW -06 203215 -15 1027 JH4ADV 4Z5PE -03 (x2) 202345 +12 435 JH4ADV S59A -18 (x2) 201700 -10 537 JH4ADV EA7GNO IM86 203000 -8 774 JH4ADV 9X5KM -09
80m
UTC dB Freq Message 201600 -24 1793 JH4ADV VK5PO -03 201645 -24 451 VK5PO JH4ADV 73 201515 +5 327 JH4ADV EA3ADX -11 201430 +10 561 JH4ADV II9MESC -16 201600 -8 746 JH4ADV 9X5KM -16
20m
UTC dB Freq Message 201645 +7 305 YT2YZ JH4ADV RR73 201715 +7 305 SP7MJX JH4ADV -15 (x2) 201800 -5 304 JH4ADV E77FN JN93 201815 +8 305 E77FN JH4ADV -01 201830 -4 305 JH4ADV E77FN R-08 201845 +9 305 E77FN JH4ADV RR73 201900 -7 304 JH4ADV E77FN 73 201915 +5 305 TL8BNW JH4ADV PM64 (x7)
160m
UTC dB Freq Message 200345 -12 827 JH4ADV UN0GY RR73 200515 -12 1743 JH4ADV RU3ACA -18 200515 +4 645 JH4ADV RD6OX -15 200545 -11 1743 JH4ADV RU3ACA -18 200545 +3 644 JH4ADV RD6OX RR73