JH4ATX — FT8 station from Japan

Japan Grid: PM75

Amateur radio station JH4ATX operating from Japan (grid square PM75). 18 FT8 spots received at SO8OO WebSDR, 2 CQ calls, active on 40m, 20m, over 4 days, best SNR +19 dB. Heard between 2026-04-23 and 2026-05-21.

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Overview

18
Total spots
2
CQ calls
4
Days active
-0 dB
Avg SNR

Bands

20m 40m
First seen: 2026-04-23
Last seen: 2026-05-21 18:04 UTC

Frequent QSO partners observed at SO8OO

Stations JH4ATX worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJH4ATXPartnerPartner SNRMsgs
05-21 20:00 20m -3 / - SV3AUW - / -12 4 ✓ Confirmed
05-21 19:57 20m -6 / - IZ5UFW - / -11 2 ✓ Confirmed
05-21 19:55 20m - / -12 SP0DZ -12 / - 2 ✓ Confirmed
05-12 11:14 20m +18 / - ON6AA - / - 2 ✓ Confirmed
04-25 13:04 20m 0 / - OH6IH - / -19 2 Partial
04-23 20:29 40m +4 / - 4L3YL - / - 2 Partial

Station Log

20m 
UTC    dB  Freq  Message
195500 -11 2528  SP0DZ JH4ATX R-12 (x2)
195600 -12 2528  SN1A JH4ATX R-05
195715  +1 1581  JH4ATX IZ5UFW R-11
195745 -19 1075  JH4ATX IK5EEA JN53
195745 -14 1580  JH4ATX IZ5UFW 73
200015  -3 2185  JH4ATX SV3AUW KM17
200030  -8 2528  IW2NZD JH4ATX -09
200045  -4 2185  JH4ATX SV3AUW KM17 (x3)
200300  -6 2528  DD6WF JH4ATX -15
200400 -11 2528  CQ JH4ATX PM75                        a1 (x2)
200500 -11 2528  OZ5THY JH4ATX -09
40m 
UTC    dB  Freq  Message
202900  +4 2894  JH4ATX 4L3YL LN21 (x2)

SNR History by Band