JA4WLF — FT8 station from Japan

Japan Grid: ?

Amateur radio station JA4WLF operating from Japan. 206 FT8 spots received at SO8OO WebSDR, 30 CQ calls, active on 20m, 10m, over 26 days, best SNR +21 dB. Heard between 2026-04-24 and 2026-06-08.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

206
Total spots
30
CQ calls
26
Days active
-3 dB
Avg SNR

Bands

20m 10m
First seen: 2026-04-24
Last seen: 2026-06-08 18:37 UTC

Frequent QSO partners observed at SO8OO

Stations JA4WLF worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJA4WLFPartnerPartner SNRMsgs
06-08 20:37 20m -10 / -18 SV4RRK -8 / -10 3 ✓ Complete
06-08 20:35 20m +1 / - R7KEA - / -16 2 ✓ Confirmed
06-08 20:14 20m -1 / -6 EA5RJ -6 / -11 6 ✓ Complete
06-08 20:07 20m +10 / -1 OK7TB -13 / +7 5 ✓ Complete
06-08 20:06 20m -4 / -12 4Z5MY -13 / - 3 ✓ Verified
06-07 20:13 20m +5 / - EA3GAT - / -19 3 Partial
06-06 20:34 20m - / -12 OE1HOW -6 / - 2 ✓ Confirmed
06-06 20:30 20m +8 / - IV3JRY - / -9 4 ✓ Confirmed
06-06 20:11 20m +7 / - R3ES - / -7 3 ✓ Confirmed
06-05 21:09 20m - / -11 SQ9SF -3 / - 2 ✓ Confirmed
06-05 21:01 20m - / - A92AB -11 / - 5 Partial
06-05 20:58 20m - / - A92AB -16 / - 2 Partial
06-05 20:44 20m - / - A92AB -11 / - 2 Partial
06-05 19:26 20m - / -22 OE3RWR -13 / - 3 Partial
06-05 19:21 20m -18 / -17 OM2IB -19 / -11 2 Partial
06-05 19:18 20m - / -7 DL7DO -18 / - 2 Partial
06-04 19:34 20m - / - OJ0Z -20 / - 2 Partial
06-04 19:33 20m -3 / - EA1CQ - / - 2 Partial
06-04 19:12 20m - / - DL3HF -11 / - 4 Partial
06-04 19:10 20m - / - OJ0Z -7 / - 2 Partial
06-04 19:06 20m -5 / -14 RW4F -6 / -20 5 ✓ Complete
06-04 19:05 20m - / -21 IK6WDY -8 / - 2 ✓ Confirmed
06-03 20:58 20m - / -16 DD5GG -11 / - 3 ✓ Confirmed
06-03 20:43 20m +2 / -10 S55A -8 / -7 2 Partial
06-03 20:36 20m -7 / -16 OE6FEF -6 / -18 5 Partial
06-03 20:26 20m +2 / - II2MPP -5 / -5 6 ✓ Verified
06-03 20:26 20m -6 / -7 UT5VQ -3 / -13 2 Partial
06-03 20:25 20m - / - RA3TD -6 / - 2 ✓ Confirmed
06-03 20:21 20m +8 / -8 E77FN -4 / -14 5 ✓ Complete
06-03 20:19 20m - / - OZ7CL 0 / - 2 Partial
06-03 20:13 20m -6 / - E77FN - / - 3 Partial
06-03 20:12 20m -18 / -14 EA1CQ -14 / - 2 Partial
06-03 20:11 20m - / -15 F8JIR -16 / - 2 ✓ Confirmed
06-03 20:08 20m - / - F8PDR -14 / - 2 Partial
06-03 20:05 20m -8 / -12 YT1UBN -16 / -1 3 Partial
06-03 20:04 20m - / -13 S50H -18 / - 2 ✓ Confirmed
06-03 19:59 20m - / -8 DL7BO -16 / - 2 Partial
06-03 13:04 10m -9 / - 9J2FI - / - 2 ✓ Confirmed
06-02 21:24 20m +4 / - YO7LMU -19 / -5 6 ✓ Verified
06-02 21:18 20m -8 / -13 DL2NAE -20 / -12 5 ✓ Complete
06-02 20:57 20m -6 / -14 YO3JR -12 / -20 4 ✓ Complete
06-02 20:51 20m -3 / -18 EA7KS -6 / -18 5 Partial
06-02 20:41 20m 0 / -14 LZ3TA -6 / - 5 Partial
06-02 20:41 20m +6 / -10 DL1CC -10 / -3 4 ✓ Complete
06-02 20:36 20m - / -16 YU7XL -10 / - 4 Partial
06-02 20:34 20m 0 / -19 EA5KV -10 / -19 2 Partial
06-02 20:31 20m - / -13 SP3SXS -10 / - 2 Partial
06-02 20:10 20m - / - OZ2KB -17 / - 2 Partial
06-02 20:08 20m - / -14 IK8WEI -16 / - 2 Partial
06-02 20:07 20m - / -9 SP5LST -16 / - 2 ✓ Confirmed

Station Log

20m 
UTC    dB  Freq  Message
201445  -7 1368  EA5RJ JA4WLF PM64 (x3)
201630  -1 1261  JA4WLF EA5RJ -11
201645  -7 1368  EA5RJ JA4WLF R-06 (x2)
201915  -3 1368  IU4RWW JA4WLF R-10
202045  -5 1566  IQ3UCY JA4WLF PM64
203445  -7 2177  CQ JA4WLF PM64 (x2)
203530  +4 2178  JA4WLF R7KEA -16 (x2)
203745 -10 1934  JA4WLF SV4RRK -10
203800  -8 2178  SV4RRK JA4WLF R-18 (x2)
10m 
UTC    dB  Freq  Message
130415 -11 2763  JA4WLF 9J2FI +00 (x2)

SNR History by Band