JA9KRO — FT8 station from Japan
Amateur radio station JA9KRO operating from Japan (grid square JO21). 87 FT8 spots received at SO8OO WebSDR, active on 40m, 20m, over 9 days, best SNR +19 dB. Heard between 2026-04-25 and 2026-05-12.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
87
Total spots
0
CQ calls
9
Days active
-4 dB
Avg SNR
Bands
20m
40m
First seen: 2026-04-25
Last seen: 2026-05-12 16:03 UTC
Last seen: 2026-05-12 16:03 UTC
Frequent QSO partners observed at SO8OO
Stations JA9KRO worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JA9KRO | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 05-12 18:03 | 20m | +7 / - | PF1H | - / - | 2 | Partial |
| 05-12 18:01 | 20m | -2 / +10 | SV1JFL | +7 / -6 | 4 | ✓ Complete |
| 05-12 17:58 | 20m | - / -10 | CT1FIU | -2 / - | 3 | ✓ Confirmed |
| 05-12 17:56 | 20m | - / +6 | SQ7L | -4 / - | 2 | ✓ Confirmed |
| 05-12 17:55 | 20m | -7 / - | OS4K | -2 / - | 2 | ✓ Verified |
| 05-12 17:52 | 20m | -19 / -18 | IZ8PPI | +1 / -4 | 4 | ✓ Complete |
| 05-12 17:52 | 20m | -13 / - | R3AM | - / -2 | 2 | Partial |
| 05-12 17:52 | 20m | -14 / +1 | UA4QK | -1 / - | 5 | ✓ Complete |
| 05-12 17:51 | 20m | - / -12 | SM5DFM | 0 / - | 2 | ✓ Confirmed |
| 05-12 17:48 | 20m | -21 / -13 | PD2PE | -3 / -2 | 4 | Partial |
| 05-11 20:27 | 20m | +6 / - | EA4BPO | - / - | 2 | Partial |
| 05-11 20:21 | 20m | +11 / - | DF7EF | - / -11 | 6 | ✓ Confirmed |
| 05-11 19:15 | 40m | -5 / - | UR5WDL | - / - | 3 | Partial |
| 05-11 19:14 | 40m | -8 / - | SM3ULU | - / - | 2 | Partial |
| 05-09 20:32 | 20m | -7 / - | IU8RFW | - / -11 | 3 | Partial |
| 05-09 20:32 | 20m | -14 / - | UX5UO | - / - | 5 | Partial |
| 05-08 21:40 | 20m | - / -12 | AA6PW | -16 / - | 2 | ✓ Confirmed |
| 05-01 17:07 | 20m | - / +6 | IK7YZB | -2 / - | 2 | ✓ Confirmed |
| 05-01 17:07 | 20m | +1 / - | EA3CSK | - / -16 | 14 | Partial |
| 05-01 17:07 | 20m | +2 / - | EA5D | - / - | 3 | Partial |
| 05-01 17:06 | 20m | - / - | SV2AJX | -6 / - | 2 | ✓ Confirmed |
| 05-01 17:04 | 20m | -1 / - | LA6OEA | -5 / +4 | 5 | ✓ Verified |
| 05-01 10:51 | 20m | - / -6 | BH3NZN | -11 / - | 2 | ✓ Confirmed |
| 05-01 10:51 | 20m | - / -7 | BD1APP | -12 / - | 3 | Partial |
| 04-30 18:02 | 20m | -4 / - | ON6MVR | - / - | 3 | Partial |
| 04-30 17:45 | 20m | -6 / - | RG2V | - / -22 | 3 | Partial |
| 04-28 18:11 | 20m | -5 / -14 | G0OSK | -1 / -2 | 4 | ✓ Complete |
| 04-26 12:28 | 20m | - / -9 | LA6OEA | -12 / - | 2 | Partial |
| 04-25 19:52 | 20m | - / -5 | IZ0GYP | -12 / - | 2 | ✓ Confirmed |
| 04-25 19:50 | 20m | - / -13 | IU2BHI | -10 / - | 2 | ✓ Confirmed |
| 04-25 19:48 | 20m | -2 / - | EA3IZF | - / - | 8 | Partial |
| 04-25 19:48 | 20m | - / -15 | HA1ICE | -12 / - | 2 | ✓ Confirmed |
| 04-25 19:47 | 20m | -1 / -11 | EA3CSK | -10 / -14 | 8 | ✓ Complete |
| 04-25 19:47 | 20m | - / -14 | IK1SOW | -14 / - | 2 | ✓ Confirmed |
| 04-25 19:46 | 20m | - / -5 | IK4UNQ | -12 / - | 2 | ✓ Confirmed |
| 04-25 19:45 | 20m | -13 / - | EA5JFO | - / -16 | 2 | Partial |
| 04-25 19:36 | 20m | - / -7 | YT2TOR | -13 / - | 5 | Partial |
| 04-24 16:19 | 20m | - / +10 | DL2MIJ | +3 / - | 2 | ✓ Confirmed |
| 04-24 16:18 | 20m | - / -5 | OK3NKO/P | +3 / - | 2 | ✓ Confirmed |
| 04-23 18:50 | 20m | - / - | NO0X | -11 / - | 2 | ✓ Confirmed |
Station Log
20m
UTC dB Freq Message 175545 -7 2510 JA9KRO OS4K RR73 175600 -2 692 OS4K JA9KRO 73 175630 -4 692 SQ7L JA9KRO +06 (x2) 175830 -4 692 CT1FIU JA9KRO -10 (x3) 180115 -6 3088 JA9KRO SV1JFL KM17 180130 +4 692 SV1JFL JA9KRO +10 180145 +1 3088 JA9KRO SV1JFL R-06 180200 +10 693 SV1JFL JA9KRO RR73 180315 +7 3021 JA9KRO PF1H JO21 180315 -11 696 JA9KRO DL1ERE JN47 180345 +7 3021 JA9KRO PF1H JO21 180645 -18 693 VA7MPG JA9KRO PM86
40m
UTC dB Freq Message 191400 -7 2499 JA9KRO SM3ULU JP81 (x2) 191430 -9 1434 JA9KRO HA8DG JN96 191530 -4 843 JA9KRO UR5WDL KN29 (x3)