JS1NDM — FT8 station from Japan

Japan Grid: ?

Amateur radio station JS1NDM operating from Japan. 40 FT8 spots received at SO8OO WebSDR, active on 40m, 20m, 10m, over 8 days, best SNR +10 dB. Heard between 2026-04-23 and 2026-06-07.

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

Overview

40
Total spots
0
CQ calls
8
Days active
-3 dB
Avg SNR

Bands

40m 20m 10m
First seen: 2026-04-23
Last seen: 2026-06-07 04:31 UTC

Frequent QSO partners observed at SO8OO

Stations JS1NDM worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJS1NDMPartnerPartner SNRMsgs
06-07 06:21 10m -17 / - FR5ZE - / +2 2 ✓ Confirmed
06-04 20:19 40m +5 / - SV8DCY - / -14 2 ✓ Confirmed
05-23 20:14 40m 0 / - YO4DW - / -17 3 Partial
05-16 20:16 40m +6 / - S52OR - / -13 2 Partial
05-16 20:16 40m -6 / - UR9QQ - / -15 4 Partial
05-16 20:13 40m +4 / - CT7AIU - / -23 3 ✓ Confirmed
05-14 20:50 20m -1 / - TF4M - / -15 3 ✓ Confirmed
05-14 20:46 20m - / -8 PA3KUS -10 / - 2 ✓ Confirmed
05-14 20:40 20m +3 / -21 4L3YL -11 / -19 5 ✓ Complete
05-14 20:18 40m -3 / - IZ4OUL - / -16 3 Partial
05-12 00:16 20m -4 / - KG4OJT - / -15 4 Partial
05-02 20:12 40m -2 / - AU2M - / +1 2 ✓ Confirmed

Station Log

10m 
UTC    dB  Freq  Message
062145 -17 1191  JS1NDM FR5ZE +02 (x2)
062615  -5 2406  JS1NDM 3B9FR -02
063130  -9  396  JS1NDM RR73; SP9MRP <...> -02
40m 
UTC    dB  Freq  Message
201330  +5  434  JS1NDM CT7AIU -23 (x3)
201600 -11 2492  JS1NDM UR9QQ KN77
201600  +9 2056  JS1NDM S52OR -13
201630  -9 2637  JS1NDM UR9QQ KN77
201630  +4 2056  JS1NDM S52OR -13
201730  -3 2637  JS1NDM UR9QQ R-15 (x2)
201430  +1 2088  JS1NDM YO4DW KN34 (x3)
202615  +9  524  JS1NDM SX20RCK -11
201930  +4 2398  JS1NDM SV8DCY -14 (x2)
20m 
UTC    dB  Freq  Message
044600 -11 2523  JS1NDM VA7RY RR73
204045 +10 2954  JS1NDM 4L3YL -19
204130 -10 2955  4L3YL JS1NDM R-21 (x2)
204245  +0 2954  JS1NDM 4L3YL RR73 (x2)
204400 -12 2955  TA1CQ JS1NDM 73
204600  -8 2955  PA3KUS JS1NDM -08 (x2)
204700 -10 2955  Z34K JS1NDM -11
205045  -2 2643  JS1NDM TF4M -15 (x3)
205600  -9  525  JS1NDM F5PBG IN78
205630 -11 2021  JS1NDM <...> -05

SNR History by Band