JA4DLF — FT8 station from Japan

Japan Grid: PM75

Amateur radio station JA4DLF operating from Japan (grid square PM75). 124 FT8 spots received at SO8OO WebSDR, 33 CQ calls, active on 20m, over 6 days, best SNR +23 dB. Heard between 2026-04-28 and 2026-05-13.

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Overview

124
Total spots
33
CQ calls
6
Days active
-6 dB
Avg SNR

Bands

20m
First seen: 2026-04-28
Last seen: 2026-05-13 19:31 UTC

Frequent QSO partners observed at SO8OO

Stations JA4DLF worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJA4DLFPartnerPartner SNRMsgs
05-13 21:36 20m - / +8 DF5AH -10 / - 2 ✓ Confirmed
05-13 21:33 20m - / -17 IK0MIB -8 / - 3 ✓ Confirmed
05-13 21:32 20m - / -10 DL5OAZ -9 / - 2 ✓ Confirmed
05-13 21:28 20m -3 / -2 EC7KW -8 / -12 4 ✓ Complete
05-13 21:26 20m - / - IK2CMI -12 / - 3 ✓ Confirmed
05-13 21:25 20m - / +2 DF4TC -10 / - 2 ✓ Confirmed
05-13 21:21 20m - / -5 EC3A -14 / - 2 ✓ Confirmed
05-13 21:20 20m - / -10 DD6CS -14 / - 2 ✓ Confirmed
05-13 21:17 20m - / -10 IQ4JO -10 / - 2 ✓ Confirmed
05-13 21:14 20m -3 / +2 EA8UP -4 / -2 4 ✓ Complete
05-13 21:09 20m - / -19 DL1AW -8 / - 3 ✓ Confirmed
05-06 19:56 20m - / -5 SV7LWI +2 / - 2 ✓ Confirmed
05-06 19:54 20m - / -25 S57BDM -2 / - 2 Partial
05-06 19:53 20m - / -3 OK2VCR +6 / - 2 ✓ Confirmed
05-06 19:52 20m - / -7 PA3HJL +4 / - 2 ✓ Confirmed
05-06 19:51 20m 0 / +4 EB5BZM 0 / -10 5 ✓ Complete
05-06 19:46 20m -1 / -16 EI8LC +4 / -5 5 ✓ Complete
05-06 19:43 20m -1 / - 4L3YL -10 / +3 2 ✓ Verified
05-06 19:43 20m +6 / - F5UKW - / -8 4 Partial
05-06 19:33 20m -6 / - 4L3YL - / - 2 Partial
05-06 19:24 20m -4 / - G5CVL - / - 2 Partial
05-06 19:11 20m -15 / - EA3CHO/P - / -1 2 Partial
05-06 18:53 20m -6 / - G5CVL - / - 2 Partial
05-06 18:53 20m -16 / - M6CBO - / - 2 Partial
05-04 21:13 20m -15 / - IK4LZH - / - 2 Partial
05-04 21:09 20m -14 / - EA5JKT - / -2 4 ✓ Confirmed
04-29 21:27 20m -8 / - 2E0BTX - / -15 10 Partial
04-29 21:26 20m -18 / - EA5GWZ -10 / -13 2 ✓ Verified
04-29 21:26 20m +22 / - EA3FCQ - / -12 2 ✓ Confirmed
04-29 21:23 20m - / -10 EA5GWZ -8 / - 2 Partial
04-29 21:21 20m -1 / -5 EB5AFK -12 / -15 5 ✓ Complete
04-29 21:19 20m +2 / - F5PRH -13 / - 3 ✓ Verified
04-29 21:05 20m -12 / - G4BAO - / - 2 Partial
04-29 21:01 20m -10 / - F5OYA/P - / -13 4 ✓ Confirmed
04-29 20:57 20m -15 / - F5OYA/P - / - 2 Partial
04-28 21:38 20m -4 / -7 EA7L -7 / - 2 Partial
04-28 21:38 20m - / -7 LA7OY -7 / - 2 Partial
04-28 21:37 20m +12 / -7 EA3EI -7 / -10 4 ✓ Complete
04-28 21:32 20m - / -17 PD0DDA -10 / - 2 Partial
04-28 21:28 20m - / -14 JA3SIA -14 / - 2 Partial
04-28 21:27 20m - / -7 DD8BV -12 / - 2 ✓ Confirmed
04-28 21:24 20m - / -15 PD5MA -8 / - 2 ✓ Confirmed
04-28 21:21 20m - / -14 SP3SX -8 / - 2 ✓ Confirmed
04-28 21:17 20m - / -14 OH8KA -8 / - 2 ✓ Confirmed
04-28 21:17 20m +8 / -12 EA3ELW -6 / -8 6 ✓ Complete
04-28 21:15 20m - / -25 R1BHG -8 / - 2 ✓ Confirmed
04-28 21:14 20m - / -24 G0TYZ -8 / - 2 Partial
04-28 21:07 20m - / -19 SP9AB -5 / - 2 ✓ Confirmed
04-28 21:06 20m - / -12 F4HSB -8 / - 2 ✓ Confirmed
04-28 21:04 20m +2 / -21 EB3CJR -6 / -5 9 ✓ Complete

Station Log

20m 
UTC    dB  Freq  Message
212745 -11 1980  IK2CMI JA4DLF RR73
212815  -8 1980  CQ DX JA4DLF PM75
212830  -3 2511  JA4DLF EC7KW IM77
212845  -8 1980  EC7KW JA4DLF -02
212900  -1 2512  JA4DLF EC7KW R-12 (x2)
213100  -7 1980  CQ DX JA4DLF PM75 (x2)
213200  -8 1980  DL5OAZ JA4DLF -10 (x2)
213300  -7 1980  IK0MIB JA4DLF -17 (x3)
213600 -10 1980  DF5AH JA4DLF +08 (x2)

SNR History by Band