JA4TKY — FT8 station from Japan
Amateur radio station JA4TKY operating from Japan. 308 FT8 spots received at SO8OO WebSDR, active on 160m, 80m, 40m, 20m, 10m, over 31 days, best SNR +21 dB. Heard between 2026-04-21 and 2026-06-26.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
308
Total spots
0
CQ calls
31
Days active
-4 dB
Avg SNR
Bands
80m
20m
40m
10m
160m
First seen: 2026-04-21
Last seen: 2026-06-26 14:59 UTC
Last seen: 2026-06-26 14:59 UTC
Frequent QSO partners observed at SO8OO
Stations JA4TKY worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JA4TKY | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-26 17:06 | 20m | - / - | F1UNR | -10 / - | 2 | Partial |
| 06-26 17:01 | 20m | - / - | HA2EOA | -12 / - | 2 | Partial |
| 06-26 16:58 | 20m | -5 / - | SP1EG | -9 / -7 | 3 | ✓ Verified |
| 06-26 16:57 | 20m | - / -13 | R6DZR | -8 / - | 2 | ✓ Confirmed |
| 06-26 16:50 | 20m | - / -11 | UT3RO | -9 / - | 2 | Partial |
| 06-26 16:47 | 20m | - / -4 | SP1EG | -8 / - | 3 | Partial |
| 06-26 16:46 | 20m | - / -16 | R4CKL | -7 / - | 2 | ✓ Confirmed |
| 06-26 16:43 | 20m | -11 / -10 | IU4PPL | -8 / - | 3 | Partial |
| 06-26 16:42 | 20m | -4 / -14 | EA5OL | -8 / +7 | 4 | ✓ Complete |
| 06-26 16:40 | 20m | -17 / -22 | EG5PLN | -8 / -11 | 3 | ✓ Complete |
| 06-26 16:37 | 20m | - / -8 | OK2VCR | -10 / - | 2 | ✓ Confirmed |
| 06-26 16:34 | 20m | -7 / -5 | EC3A | -9 / -6 | 6 | ✓ Complete |
| 06-26 16:33 | 20m | -17 / - | ON7DJ | - / - | 2 | Partial |
| 06-26 16:31 | 20m | - / -13 | A91LD | -16 / - | 3 | ✓ Confirmed |
| 06-26 16:28 | 20m | - / -23 | IU6DDC | -16 / - | 2 | ✓ Confirmed |
| 06-26 16:25 | 20m | - / - | IQ3UCY | -17 / - | 3 | Partial |
| 06-23 19:04 | 20m | +1 / - | ON7DJ | - / - | 4 | Partial |
| 06-23 19:02 | 20m | -10 / -17 | F4HTA | -16 / -9 | 3 | ✓ Complete |
| 06-19 21:20 | 20m | - / - | A61OK | -6 / - | 2 | Partial |
| 06-14 16:38 | 20m | - / -23 | SP6SOZ | -18 / - | 4 | ✓ Confirmed |
| 06-14 16:31 | 20m | - / -13 | SV9RRT | -22 / - | 2 | ✓ Confirmed |
| 06-14 16:27 | 20m | - / -3 | HB9OAB | -19 / - | 3 | ✓ Confirmed |
| 06-14 16:24 | 20m | - / -12 | SA3YTA | -16 / - | 3 | Partial |
| 06-14 16:21 | 20m | - / - | SV7BVM | -10 / - | 4 | Partial |
| 06-14 16:16 | 20m | -2 / - | PD4RD | - / -3 | 2 | Partial |
| 06-14 16:13 | 20m | - / - | LZ1BT | -9 / - | 3 | Partial |
| 06-14 16:09 | 20m | - / -15 | <...> | -12 / - | 2 | Partial |
| 06-10 17:47 | 20m | - / -20 | IU6UBV | -1 / - | 2 | ✓ Confirmed |
| 06-10 17:43 | 20m | -12 / -18 | SV8SWF | +1 / - | 6 | ✓ Complete |
| 06-10 17:38 | 20m | - / -18 | ON2BCB | -1 / - | 2 | ✓ Confirmed |
| 06-10 17:36 | 20m | +8 / -20 | PD0LK | 0 / -16 | 4 | ✓ Complete |
| 06-10 17:33 | 20m | - / -21 | LU6ABT | -2 / - | 2 | ✓ Confirmed |
| 06-10 17:29 | 20m | -8 / -12 | SP8ADU | -2 / - | 4 | ✓ Verified |
| 06-10 17:26 | 20m | -2 / - | RC2EC | - / +1 | 2 | Partial |
| 06-10 17:15 | 20m | +3 / -18 | TA4LYN | 0 / - | 5 | ✓ Verified |
| 06-10 17:07 | 20m | -3 / - | RZ4FWA | - / - | 3 | Partial |
| 06-10 17:01 | 20m | 0 / -22 | 7Q7CT | -7 / -8 | 6 | Partial |
| 06-10 16:51 | 20m | - / -13 | ZS6HON | -8 / - | 2 | ✓ Confirmed |
| 06-10 16:47 | 20m | - / - | ZS6HON | -8 / - | 3 | Partial |
| 06-10 16:32 | 40m | +11 / - | OE3KLU | - / -20 | 4 | ✓ Confirmed |
| 06-10 16:27 | 40m | -8 / - | RT6Z | - / -16 | 2 | ✓ Confirmed |
| 06-09 12:19 | 10m | -12 / - | A61DD | - / +3 | 2 | ✓ Confirmed |
| 06-06 23:09 | 20m | -3 / - | UN0GY | - / -7 | 2 | Partial |
| 06-06 18:34 | 80m | +1 / - | D2UY | - / -18 | 2 | ✓ Confirmed |
| 06-06 18:20 | 80m | -16 / - | RN2T | - / - | 4 | Partial |
| 06-06 18:15 | 80m | -7 / - | RN2T | - / - | 6 | Partial |
| 06-06 18:10 | 80m | -12 / - | RA4DX | - / -16 | 4 | ✓ Confirmed |
| 06-06 18:07 | 80m | +6 / - | RG7M | - / -16 | 2 | ✓ Confirmed |
| 06-06 17:59 | 80m | -19 / - | UA4HBJ | - / -17 | 4 | ✓ Confirmed |
| 06-06 15:17 | 20m | +18 / - | EI/M1AMD | - / -19 | 3 | Partial |
Station Log
20m
UTC dB Freq Message 165130 -14 2037 JA4TKY <...> +06 165145 -9 275 UT3RO JA4TKY R-14 165245 -9 275 IR2RMAG JA4TKY R-14 165415 -9 275 9A3JY JA4TKY -18 165715 -8 275 R6DZR JA4TKY R-13 (x2) 165830 -6 2064 JA4TKY SP1EG R-07 165845 -9 275 SP1EG JA4TKY RR73 165900 -4 2064 JA4TKY SP1EG 73 170030 -9 275 I8KRC JA4TKY 73 170130 -10 275 HA2EOA JA4TKY PM75 (x2) 170400 -13 275 YO6PNM JA4TKY PM75 170600 -11 275 F1UNR JA4TKY PM75 (x2)
40m
UTC dB Freq Message 204200 +3 2804 JA4TKY YM4KF -15 (x3) 204330 -18 1641 JA4TKY UA3ZNQ KO81 204400 +5 2805 JA4TKY YM4KF -17 205530 -2 1171 JA4TKY SM5KNV -10 (x2) 215400 -9 776 JA4TKY 9X5KM -07 215430 -11 775 JA4TKY RR73; IU0DHV <...> -10 162700 -8 2429 JA4TKY RT6Z -16 (x2) 163245 +10 1380 JA4TKY OE3KLU -20 (x4)
10m
UTC dB Freq Message 095945 -21 1333 JA4TKY VU2ADV RR73 125645 +11 2919 JA4TKY VU2CPL RR73 132900 -16 1862 JA4TKY ZS1TFK +03 153930 -22 1736 JA4TKY HZ1SK -21 085915 -1 906 JA4TKY A61CK -05 (x2) 121915 -8 1203 JA4TKY A61DD +03 (x2)
80m
UTC dB Freq Message 181115 -10 2146 JA4TKY RA4DX LO21 (x3) 181545 -3 2502 JA4TKY RN2T LO26 (x10) 183430 +0 2579 JA4TKY D2UY -18 (x2)
160m
UTC dB Freq Message 191200 +9 1479 JA4TKY YU1LD KN04 (x6)