JR4GPA — FT8 station from Japan
Amateur radio station JR4GPA operating from Japan. 729 FT8 spots received at SO8OO WebSDR, 167 CQ calls, active on 80m, 40m, 20m, 10m, over 27 days, best SNR +30 dB. Heard between 2026-04-21 and 2026-06-09.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
729
Total spots
167
CQ calls
27
Days active
-3 dB
Avg SNR
Bands
80m
20m
40m
10m
First seen: 2026-04-21
Last seen: 2026-06-09 18:36 UTC
Last seen: 2026-06-09 18:36 UTC
Frequent QSO partners observed at SO8OO
Stations JR4GPA worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JR4GPA | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-09 20:35 | 20m | -17 / - | IK8IOI | - / -11 | 2 | ✓ Confirmed |
| 06-09 20:33 | 20m | - / -9 | SP7MKG | -19 / - | 2 | ✓ Confirmed |
| 06-09 20:32 | 20m | - / -12 | YO4DWD | -14 / - | 2 | ✓ Confirmed |
| 06-09 20:29 | 20m | +6 / - | IQ4FE | -7 / -18 | 3 | ✓ Verified |
| 06-09 20:26 | 20m | 0 / -14 | EA5PG | -11 / -13 | 6 | ✓ Complete |
| 06-09 20:24 | 20m | - / -13 | IQ0OS | -4 / - | 2 | Partial |
| 06-09 20:23 | 20m | - / -7 | IQ4FE | -13 / - | 2 | Partial |
| 06-09 20:16 | 20m | - / -11 | SQ5JMO | -9 / - | 2 | ✓ Confirmed |
| 06-08 19:41 | 20m | -5 / -10 | IU4RWW | +2 / - | 4 | Partial |
| 06-08 19:39 | 20m | -7 / -9 | R6FMF | -1 / -8 | 2 | Partial |
| 06-08 19:38 | 20m | - / -14 | SP2LNY | 0 / - | 3 | ✓ Confirmed |
| 06-08 19:37 | 20m | - / -3 | SQ2RAD | -1 / - | 3 | ✓ Confirmed |
| 06-08 19:34 | 20m | -20 / - | R3BEE | - / -20 | 2 | ✓ Confirmed |
| 06-08 19:30 | 20m | -3 / - | IU3TBD | - / -14 | 2 | ✓ Confirmed |
| 06-08 19:27 | 20m | -12 / - | DC1XU | - / -24 | 4 | ✓ Confirmed |
| 06-08 19:23 | 20m | -2 / -4 | LZ2PC | -11 / -17 | 5 | ✓ Complete |
| 06-08 19:22 | 20m | - / -17 | HA1ORA | -13 / - | 3 | ✓ Confirmed |
| 06-08 19:16 | 20m | +4 / - | F1POK | -14 / -22 | 5 | ✓ Verified |
| 06-08 19:07 | 20m | -9 / -15 | F4NGR | -12 / -11 | 5 | ✓ Complete |
| 06-08 19:06 | 20m | +18 / -8 | PD0RDD | -12 / -20 | 5 | ✓ Complete |
| 06-08 19:00 | 20m | -5 / - | F4NGR | - / - | 4 | Partial |
| 06-08 18:53 | 20m | - / -3 | SP9JZT | -9 / - | 2 | Partial |
| 06-08 18:53 | 20m | -2 / -14 | IU0TYA | -7 / -15 | 9 | ✓ Complete |
| 06-08 18:49 | 20m | -6 / - | DK0VL | - / - | 2 | ✓ Confirmed |
| 06-08 18:47 | 20m | +3 / - | PD1HPB | - / - | 12 | Partial |
| 06-08 18:46 | 20m | +11 / - | IU2LCQ | - / -15 | 6 | ✓ Confirmed |
| 06-08 18:42 | 20m | -4 / - | IK4LZH | - / - | 4 | Partial |
| 06-08 18:41 | 20m | -22 / - | S57BDM | - / -14 | 2 | ✓ Confirmed |
| 06-08 18:40 | 20m | +22 / - | SV1MOZ | - / - | 5 | Partial |
| 06-08 18:39 | 20m | -10 / - | IW5ALZ | - / -3 | 2 | Partial |
| 06-08 18:38 | 20m | +4 / - | E77FN | - / -16 | 2 | ✓ Confirmed |
| 06-08 18:37 | 20m | -15 / - | PD0WL | - / - | 2 | Partial |
| 06-08 18:33 | 20m | +6 / - | IW5ALZ | - / - | 2 | Partial |
| 06-08 18:33 | 20m | -6 / - | HB9EKJ | -2 / -16 | 8 | ✓ Verified |
| 06-08 18:32 | 20m | -7 / - | DL1UDO | - / - | 3 | Partial |
| 06-08 18:26 | 20m | -2 / -10 | DB1SN | -6 / -17 | 5 | ✓ Complete |
| 06-07 20:25 | 20m | -19 / - | IQ7PU | - / -7 | 2 | ✓ Confirmed |
| 06-07 20:16 | 20m | -2 / - | TA7I | - / - | 2 | Partial |
| 06-07 20:11 | 20m | -7 / -10 | IQ0VT | -12 / - | 3 | ✓ Verified |
| 06-04 19:50 | 20m | +12 / - | IZ2DPX | - / - | 3 | Partial |
| 06-04 19:43 | 20m | - / -18 | OH2DUV | -8 / - | 2 | Partial |
| 06-01 19:16 | 20m | - / -12 | SP7WTC | -18 / - | 2 | Partial |
| 06-01 19:12 | 20m | - / - | DS2MGT | -4 / - | 2 | ✓ Confirmed |
| 06-01 19:09 | 20m | -13 / - | RT6O | -6 / -14 | 3 | ✓ Verified |
| 06-01 19:08 | 20m | - / -18 | IK2UIG | -2 / - | 3 | Partial |
| 05-31 19:19 | 20m | -9 / -12 | PI4TS | -3 / -19 | 2 | Partial |
| 05-31 19:09 | 20m | -5 / - | DL1YKQ | - / - | 2 | Partial |
| 05-30 20:18 | 20m | - / -10 | YU3RS | -12 / - | 2 | ✓ Confirmed |
| 05-30 20:14 | 20m | - / -14 | CX1CW | -10 / - | 2 | ✓ Confirmed |
| 05-30 20:09 | 20m | - / -15 | 9A6GUO | -6 / - | 3 | Partial |
Station Log
20m
UTC dB Freq Message 202700 -12 2097 EA5PG JR4GPA -14 (x2) 202745 +3 2097 JR4GPA EA5PG R-13 202800 -10 2098 EA5PG JR4GPA RR73 202815 -3 2097 JR4GPA EA5PG 73 202945 +5 1732 JR4GPA IQ4FE R-18 203000 -7 1733 IQ4FE JR4GPA RR73 203015 -18 2009 JR4GPA YO8PS KN37 203015 +8 1732 JR4GPA IQ4FE 73 203200 -14 1927 YO4DWD JR4GPA -12 (x2) 203330 -20 1320 SP7MKG JR4GPA -09 (x2) 203530 -18 2404 JR4GPA IK8IOI R-11 (x2)
80m
UTC dB Freq Message 201300 +0 525 JR4GPA DO5SOB JN48
40m
UTC dB Freq Message 185700 -4 641 JR4GPA DK5DW JN68 (x3) 212915 +8 376 JR4GPA 9A4ZM JN86 (x3)
10m
UTC dB Freq Message 103300 -4 1507 JR4GPA A60PE/14 -03 104615 -3 720 JR4GPA A61DI -12 (x2) 080430 -21 1521 DL9KM JR4GPA RR73 080600 -17 1521 YO3OBB JR4GPA -06 (x2) 080745 -12 1521 US4EX JR4GPA -04 (x2) 080845 -23 1521 YO7LCB JR4GPA -05 (x2) 081745 -21 1447 IU6UAQ JR4GPA RR73 085145 -15 1584 JR4GPA R6FMW R-03