JR3REX — FT8 station from Japan
Amateur radio station JR3REX operating from Japan. 122 FT8 spots received at SO8OO WebSDR, active on 160m, 80m, 40m, 20m, over 10 days, best SNR +23 dB. Heard between 2026-04-21 and 2026-05-13.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
122
Total spots
0
CQ calls
10
Days active
-1 dB
Avg SNR
Bands
80m
20m
40m
160m
First seen: 2026-04-21
Last seen: 2026-05-13 19:47 UTC
Last seen: 2026-05-13 19:47 UTC
Frequent QSO partners observed at SO8OO
Stations JR3REX worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JR3REX | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 05-13 21:45 | 20m | -12 / -26 | E74K | +1 / - | 7 | ✓ Verified |
| 05-13 21:39 | 20m | - / - | IZ3EAW | -10 / - | 2 | Partial |
| 05-13 21:27 | 20m | - / - | EC7KW | -13 / - | 3 | Partial |
| 05-13 21:23 | 20m | - / - | EC7KW | -2 / - | 2 | Partial |
| 05-13 21:17 | 20m | - / - | T77RN | -5 / - | 2 | Partial |
| 05-13 19:33 | 80m | 0 / - | 9A3DF | - / - | 2 | Partial |
| 05-13 19:33 | 80m | -2 / - | YT1VDA | - / - | 3 | Partial |
| 05-13 19:28 | 80m | -9 / - | UX7UU | - / -13 | 2 | ✓ Confirmed |
| 05-13 19:25 | 80m | -12 / - | RM5F | - / -17 | 2 | Partial |
| 05-12 10:58 | 20m | +13 / - | ON8BB | - / - | 3 | Partial |
| 05-11 22:30 | 20m | - / - | S58N | 0 / - | 2 | Partial |
| 05-11 22:23 | 20m | -9 / - | SV1HFE | - / - | 2 | Partial |
| 05-11 22:16 | 20m | - / -12 | S58N | -8 / - | 4 | Partial |
| 05-11 22:09 | 20m | +8 / - | EA5BLP | - / - | 2 | Partial |
| 05-11 22:03 | 20m | - / - | CR7BRV | -1 / - | 3 | Partial |
| 05-11 21:56 | 20m | +19 / - | EA5BLP | - / - | 6 | Partial |
| 05-11 21:53 | 20m | - / - | DM3AZ | -12 / - | 4 | ✓ Confirmed |
| 05-10 21:49 | 20m | - / -16 | DC9RI | -6 / - | 2 | Partial |
| 05-10 21:30 | 20m | - / -13 | OZ6N | -12 / - | 4 | ✓ Confirmed |
| 05-10 21:25 | 20m | - / -18 | DH2KAB | -11 / - | 2 | ✓ Confirmed |
| 05-10 21:19 | 20m | -6 / - | F5PBG | - / - | 2 | Partial |
| 05-10 21:13 | 20m | - / - | OZ6N | -8 / - | 2 | Partial |
| 05-10 21:12 | 20m | +7 / - | 4L3YL | - / - | 5 | Partial |
| 05-10 21:11 | 20m | -12 / - | EI3IXB | - / - | 2 | Partial |
| 05-10 21:06 | 20m | -12 / - | EI3IXB | - / -12 | 3 | Partial |
| 05-10 21:05 | 20m | - / -15 | PE9JAN | +1 / - | 3 | ✓ Confirmed |
| 05-10 21:02 | 20m | - / -12 | DF7EF | +4 / - | 4 | ✓ Confirmed |
| 05-10 20:58 | 20m | - / -22 | PD5MVH | -8 / - | 3 | ✓ Confirmed |
| 05-10 20:53 | 20m | - / -14 | EW3FF | -4 / - | 2 | Partial |
| 05-10 20:47 | 20m | - / - | DM2AB | +2 / - | 5 | Partial |
| 05-10 20:46 | 20m | - / -13 | OK1FAN | -2 / - | 3 | ✓ Confirmed |
| 05-10 20:44 | 20m | -15 / -5 | ON6AA | -3 / - | 2 | Partial |
| 05-10 20:28 | 40m | +12 / - | DL5EBS | - / - | 2 | Partial |
| 05-10 20:19 | 40m | -4 / - | SN6P | - / - | 2 | Partial |
| 05-10 20:06 | 40m | +15 / - | DD0AM | -18 / -18 | 3 | ✓ Verified |
| 05-10 20:05 | 40m | -4 / - | PC2J | - / -20 | 3 | Partial |
| 05-10 20:00 | 40m | +2 / - | YU0X | - / - | 2 | ✓ Confirmed |
| 05-09 22:33 | 20m | -24 / - | ON4DAK | -6 / -5 | 4 | Partial |
| 05-09 22:29 | 20m | - / -14 | 9A2RD | -3 / - | 4 | ✓ Confirmed |
| 05-09 22:22 | 20m | +4 / - | EA1AOC | - / - | 6 | Partial |
| 05-09 22:18 | 20m | - / -5 | GW8DX | -3 / - | 8 | ✓ Confirmed |
| 05-09 21:02 | 20m | - / -16 | OH7BDI | -7 / - | 3 | Partial |
| 05-09 20:57 | 20m | - / -15 | 3Z0L | -6 / - | 4 | ✓ Confirmed |
| 05-09 20:56 | 20m | - / - | E75T | -10 / - | 2 | ✓ Confirmed |
| 05-09 20:52 | 20m | -23 / -20 | MI7XHT | -3 / -14 | 5 | ✓ Complete |
| 05-09 20:46 | 20m | -6 / -10 | GM3JIM | -8 / -4 | 4 | ✓ Complete |
| 05-09 20:37 | 20m | - / -23 | SM7OYP | -4 / - | 3 | ✓ Confirmed |
| 05-09 20:35 | 20m | 0 / - | IZ0TKD | - / - | 9 | Partial |
| 05-09 20:35 | 20m | -10 / - | OK5AC | -5 / - | 3 | ✓ Verified |
| 05-09 20:27 | 20m | - / - | JW7QIA | -2 / - | 5 | ✓ Confirmed |
Station Log
20m
UTC dB Freq Message 212330 -1 353 EC7KW JR3REX PM74 (x4) 213130 -14 2279 S55OO JR3REX PM74 213630 +0 2763 G4IFX JR3REX PM74 213900 -9 792 IZ3EAW JR3REX PM74 (x2) 214545 +2 1254 E74K JR3REX PM74 (x4) 214730 -12 2425 JR3REX E74K RR73 214745 -3 2373 E74K JR3REX R-26 (x2)
80m
UTC dB Freq Message 195615 -17 557 SV1QEW JR3REX PM74 (x3) 192530 -11 1154 JR3REX RM5F -17 (x2) 192830 -10 1604 JR3REX UX7UU -13 (x2) 193215 -14 2359 JR3REX RW1QN -07 193345 +1 1749 JR3REX 9A3DF JN86 193345 +2 1959 JR3REX YT1VDA KN04 193415 -1 1749 JR3REX 9A3DF JN86 193415 -3 1959 JR3REX YT1VDA KN04 (x2)
40m
UTC dB Freq Message 205430 +5 2501 JR3REX UR6QA RR73 200045 +5 2141 JR3REX YU0X +00 (x2) 200530 -5 2039 JR3REX PC2J -20 (x2) 200615 -17 2500 OG5O JR3REX PM74 200630 -1 2039 JR3REX PC2J -20 200645 -18 2500 DD0AM JR3REX PM74 200700 +14 419 JR3REX DD0AM -18 (x2) 201445 +2 1757 JR3REX S50XX -07 201945 -1 2594 JR3REX SN6P JO80 (x2) 202800 +15 2852 JR3REX DL5EBS JO31 (x2)
160m
UTC dB Freq Message 194445 +6 1218 JR3REX RM3DA KO95 (x2) 194615 +1 1135 JR3REX UA4FKT -10 194615 +8 372 JR3REX RD6OX -15 (x2) 194645 +5 550 JR3REX UA4FKT RR73 194715 +11 372 JR3REX RD6OX -15 194715 +4 550 JR3REX UA4FKT RR73 194815 +10 372 JR3REX RD6OX -15 (x5)