JH4IFF — FT8 station from Japan
Amateur radio station JH4IFF operating from Japan. 323 FT8 spots received at SO8OO WebSDR, 5 CQ calls, active on 160m, 80m, 60m, 40m, 20m, 10m, over 46 days, best SNR +16 dB. Heard between 2026-04-21 and 2026-06-28.
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Overview
323
Total spots
5
CQ calls
46
Days active
-4 dB
Avg SNR
Bands
80m
20m
40m
60m
10m
160m
First seen: 2026-04-21
Last seen: 2026-06-28 18:23 UTC
Last seen: 2026-06-28 18:23 UTC
Frequent QSO partners observed at SO8OO
Stations JH4IFF worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | JH4IFF | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-28 20:23 | 20m | - / -9 | YO3FVR/P | -20 / - | 2 | Partial |
| 06-27 20:33 | 20m | +2 / - | G4CFS | - / - | 4 | Partial |
| 06-27 20:32 | 20m | - / -18 | PY2LPM | -17 / - | 3 | ✓ Confirmed |
| 06-27 20:28 | 20m | -12 / -7 | DL70ESSEN | -16 / - | 6 | ✓ Verified |
| 06-27 20:27 | 20m | - / - | 9K2ET | -18 / - | 2 | ✓ Confirmed |
| 06-27 20:26 | 20m | -14 / - | CT2HUU | - / - | 3 | Partial |
| 06-27 20:23 | 20m | - / - | <...> | -16 / - | 2 | Partial |
| 06-25 20:30 | 20m | - / -20 | IQ6PE | -6 / - | 2 | ✓ Confirmed |
| 06-25 20:27 | 20m | - / -14 | BA4IHB | -4 / - | 3 | ✓ Confirmed |
| 06-25 20:27 | 20m | 0 / -16 | F5OYA/P | -4 / -8 | 7 | ✓ Complete |
| 06-25 20:26 | 20m | - / -8 | BG4LNW | -4 / - | 2 | ✓ Confirmed |
| 06-24 20:48 | 20m | 0 / - | F1SZC | - / -14 | 5 | ✓ Confirmed |
| 06-24 20:47 | 20m | -2 / - | DL7GAL | - / -15 | 4 | ✓ Confirmed |
| 06-24 20:45 | 20m | +2 / - | HB9DTC | - / - | 3 | ✓ Confirmed |
| 06-23 20:09 | 40m | -14 / - | UF1A | - / -11 | 3 | ✓ Confirmed |
| 06-22 20:30 | 20m | -10 / - | 9K2GR | - / -4 | 2 | ✓ Confirmed |
| 06-22 20:21 | 20m | - / - | 7Z1BH | -19 / - | 4 | Partial |
| 06-22 20:19 | 20m | - / -14 | EP2AES | -18 / - | 3 | ✓ Confirmed |
| 06-20 21:07 | 60m | -1 / - | OH2BGD | - / - | 4 | Partial |
| 06-20 20:21 | 20m | - / - | IQ8PZ | -17 / - | 2 | ✓ Confirmed |
| 06-20 20:11 | 40m | -12 / - | IQ3UCY | - / -12 | 2 | Partial |
| 06-20 20:08 | 40m | -15 / - | UX7QG | - / -16 | 3 | ✓ Confirmed |
| 06-18 20:33 | 20m | -12 / - | J40GAY | -10 / -12 | 2 | Partial |
| 06-18 20:28 | 20m | +2 / - | IQ7KM | - / +7 | 2 | ✓ Confirmed |
| 06-18 20:26 | 20m | +6 / -7 | IQ2DB | -8 / - | 3 | ✓ Verified |
| 06-18 20:22 | 20m | - / - | YO/F4MFS | -7 / - | 2 | Partial |
| 06-18 20:20 | 20m | - / -14 | RA3QH | -10 / - | 2 | ✓ Confirmed |
| 06-18 20:19 | 20m | -7 / -9 | SV1MOZ | -6 / - | 3 | ✓ Verified |
| 06-18 20:17 | 20m | -9 / -11 | IQ5AAR | -6 / -8 | 4 | ✓ Complete |
| 06-17 20:31 | 20m | - / - | OM0RX | +2 / - | 2 | ✓ Confirmed |
| 06-17 20:29 | 20m | +12 / -13 | 9H5DX | -2 / +7 | 5 | ✓ Complete |
| 06-17 20:28 | 20m | - / -14 | IS0KNS | 0 / - | 2 | ✓ Confirmed |
| 06-17 20:27 | 20m | - / -16 | BG5DMC | +4 / - | 2 | ✓ Confirmed |
| 06-17 20:25 | 20m | - / -18 | IQ4FJ | +1 / - | 3 | ✓ Confirmed |
| 06-17 20:24 | 20m | - / -19 | JA3SIA | +3 / - | 2 | ✓ Confirmed |
| 06-17 20:23 | 20m | - / -15 | IQ7PU | +2 / - | 3 | ✓ Confirmed |
| 06-17 20:22 | 20m | -23 / -6 | HG5ONP | -2 / +2 | 3 | ✓ Complete |
| 06-17 20:21 | 20m | - / -13 | HB9TIH | -2 / - | 2 | ✓ Confirmed |
| 06-17 20:20 | 20m | - / -11 | SP2EWQ | 0 / - | 2 | ✓ Confirmed |
| 06-17 20:18 | 20m | -12 / -5 | IQ4LH | 0 / -2 | 4 | ✓ Complete |
| 06-17 20:17 | 20m | - / -9 | TJ1GD/P | -2 / - | 3 | ✓ Confirmed |
| 06-17 20:09 | 40m | -4 / - | YT1VDA | - / - | 2 | Partial |
| 06-17 20:06 | 40m | 0 / - | IQ8PC | - / -13 | 2 | ✓ Confirmed |
| 06-12 20:28 | 20m | -8 / - | IU4RWW | 0 / - | 2 | ✓ Verified |
| 06-12 20:27 | 20m | +4 / - | SV5BYP | - / - | 3 | Partial |
| 06-12 20:24 | 20m | -15 / - | A60PC/14 | - / - | 2 | ✓ Confirmed |
| 06-12 20:23 | 20m | +6 / -9 | SV5BYP | -2 / - | 5 | Partial |
| 06-12 20:21 | 20m | - / -16 | IQ9NI | 0 / - | 2 | Partial |
| 06-12 20:11 | 40m | -6 / - | IQ7PU | - / -12 | 2 | ✓ Confirmed |
| 06-09 20:24 | 40m | -7 / - | 9X5KM | - / +4 | 3 | Partial |
Station Log
20m
UTC dB Freq Message 202930 -12 2406 JH4IFF DL70ESSEN 73 202945 -16 1950 DL70ESSEN JH4IFF PM74 (x4) 203245 -17 1951 PY2LPM JH4IFF -18 203300 +0 2953 JH4IFF G4CFS IO91 203315 -18 1950 PY2LPM JH4IFF -17 203330 +2 2953 JH4IFF G4CFS IO91 203345 -16 1951 PY2LPM JH4IFF RR73 203400 +4 2953 JH4IFF G4CFS IO91 (x2) 202300 -1 1775 JH4IFF GB1500M -10 202315 -19 1717 YO3FVR/P JH4IFF R-09 (x2)
40m
UTC dB Freq Message 200645 +0 1877 JH4IFF IQ8PC RR73 200915 -9 1729 JH4IFF YT1VDA KN04 (x2) 200730 -8 696 <JH4IFF> II9RICT RR73 200730 -8 2974 JH4IFF PF1H JO21 200800 -15 988 JH4IFF UX7QG KO50 (x3) 201100 -12 1339 JH4IFF IQ3UCY -12 (x2) 200945 -15 1588 JH4IFF UF1A KO49 (x3) 204030 -17 2193 JH4IFF R3BDQ -10 204030 -17 2063 JH4IFF IQ7KM 73
60m
UTC dB Freq Message 210730 +2 2507 JH4IFF OH2BGD KP20 (x4)
80m
UTC dB Freq Message 195130 +4 483 JH4IFF RG5A 73 195130 -10 1495 JH4IFF EA3HMM -12 (x3) 201215 -3 1878 JH4IFF SV5BYP RR73 201030 +3 561 JH4IFF II9MESC -20 194830 +4 1767 JH4IFF LZ370TL -08 (x2) 195030 -8 2294 JH4IFF CT1APE IM59 (x7)
10m
UTC dB Freq Message 090845 -11 885 JH4IFF ZS3W -17 (x2) 091930 -19 491 JH4IFF RR73; JH4CPC <...> -12 092100 -13 879 JH4IFF 8Q7PR -12 (x2)
160m
UTC dB Freq Message 201445 -8 827 JH4IFF UN0GY +08 (x2) 201630 +6 2739 JH4IFF DL4KSD JO71 (x2)