7M4RRM — FT8 station from Japan
Amateur radio station 7M4RRM operating from Japan. 87 FT8 spots received at SO8OO WebSDR, 4 CQ calls, active on 40m, 20m, over 17 days, best SNR +22 dB. Heard between 2026-05-07 and 2026-06-23.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
87
Total spots
4
CQ calls
17
Days active
-5 dB
Avg SNR
Bands
20m
40m
First seen: 2026-05-07
Last seen: 2026-06-23 17:37 UTC
Last seen: 2026-06-23 17:37 UTC
Frequent QSO partners observed at SO8OO
Stations 7M4RRM worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | 7M4RRM | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-23 19:32 | 40m | -4 / - | YL3CU | - / -18 | 2 | ✓ Confirmed |
| 06-16 19:19 | 20m | +20 / - | IW9HPG | - / - | 3 | Partial |
| 06-16 19:17 | 20m | - / - | DK8RE | -18 / - | 2 | ✓ Confirmed |
| 06-14 20:25 | 20m | -11 / - | IQ8PZ | - / -11 | 3 | ✓ Confirmed |
| 06-13 20:17 | 20m | +2 / - | IV3JRY | - / - | 2 | Partial |
| 06-10 23:59 | 20m | -12 / - | YL2KF | - / -17 | 2 | ✓ Confirmed |
| 06-04 23:31 | 20m | -16 / - | BI8SCC | - / -18 | 2 | ✓ Confirmed |
| 06-02 21:00 | 20m | +2 / - | IQ4JO | - / -11 | 2 | ✓ Confirmed |
| 06-02 20:50 | 20m | -1 / - | M0BEW | - / -14 | 4 | Partial |
| 06-01 21:21 | 20m | -6 / - | A61CK | - / -24 | 6 | Partial |
| 05-30 19:04 | 20m | -1 / - | RA3ZH | - / -16 | 5 | ✓ Confirmed |
| 05-30 18:47 | 40m | -6 / - | TA9AAR | - / -16 | 2 | Partial |
| 05-30 18:26 | 20m | - / -13 | SQ2WSZ | -14 / - | 2 | Partial |
| 05-30 18:08 | 20m | -6 / - | R3DHP | - / -20 | 2 | ✓ Confirmed |
| 05-30 18:04 | 20m | - / -2 | LU5FF | -10 / - | 2 | ✓ Confirmed |
| 05-30 18:02 | 20m | -10 / -14 | TA3TK | -9 / -10 | 3 | Partial |
| 05-30 18:00 | 20m | - / -23 | EP2AES | -13 / - | 3 | Partial |
| 05-30 17:58 | 20m | - / -13 | A92AE | -16 / - | 2 | Partial |
| 05-30 17:56 | 20m | - / -18 | SV9KNA | -16 / - | 2 | Partial |
| 05-30 17:46 | 20m | - / -21 | Z34CMF | -18 / - | 2 | Partial |
| 05-30 17:45 | 20m | - / -17 | IS0KNG | -14 / - | 2 | Partial |
| 05-30 17:43 | 20m | -20 / -15 | R4PEX | -16 / -25 | 3 | ✓ Complete |
| 05-30 17:42 | 20m | - / -4 | BD8FDL | -18 / - | 2 | ✓ Confirmed |
| 05-30 17:36 | 20m | - / -16 | YU7ZZ | -19 / - | 2 | ✓ Confirmed |
| 05-29 21:14 | 20m | +16 / -10 | HB9EFK | -10 / -12 | 4 | ✓ Complete |
| 05-29 21:07 | 20m | -15 / -5 | UX5UO | -13 / - | 3 | ✓ Verified |
| 05-29 21:03 | 20m | -5 / - | JF1FAO | - / +2 | 3 | ✓ Confirmed |
| 05-29 20:39 | 20m | - / -14 | BG5CNL | -15 / - | 2 | ✓ Confirmed |
| 05-29 20:37 | 20m | - / -18 | GB9SOS | -15 / - | 2 | Partial |
| 05-14 23:07 | 20m | -15 / - | BG7IDX | - / -12 | 2 | ✓ Confirmed |
| 05-13 23:37 | 20m | -4 / - | 9V1YC | - / -10 | 2 | ✓ Confirmed |
| 05-12 19:02 | 20m | -10 / - | R4FDW | - / -14 | 6 | Partial |
| 05-12 18:55 | 20m | -5 / - | EA5XA | - / -18 | 9 | Partial |
| 05-12 18:48 | 20m | +18 / - | LA3BO | - / -14 | 2 | ✓ Confirmed |
| 05-12 18:41 | 20m | -6 / - | DF2KK | - / - | 3 | Partial |
| 05-12 18:41 | 20m | -2 / - | R6FMF | - / -14 | 2 | Partial |
| 05-11 21:26 | 20m | -8 / - | IU0TPA | - / -24 | 3 | ✓ Confirmed |
| 05-07 23:14 | 20m | +8 / - | E75AA | - / -14 | 2 | ✓ Confirmed |
Station Log
40m
UTC dB Freq Message 184700 -5 1810 7M4RRM TA9AAR R-16 (x2) 193215 -3 2384 7M4RRM YL3CU R-18 (x2) 193415 -10 2003 7M4RRM UB6C KN94 193415 +2 2893 7M4RRM IQ4JO JN63 193715 -11 674 7M4RRM R6DJR RR73
20m
UTC dB Freq Message 235915 -14 1654 7M4RRM YL2KF R-17 (x2) 235945 +0 887 7M4RRM YO4NF -18 201700 +3 604 7M4RRM IV3JRY JN66 (x2) 202515 -10 894 7M4RRM IQ8PZ JN70 (x3) 191630 -16 909 RA3QH 7M4RRM -18 191730 -17 909 DK8RE 7M4RRM RR73 (x2) 191930 -11 908 S56KFV 7M4RRM R-19 191945 +17 1051 7M4RRM IW9HPG JM78 (x3)