JK1ATM — FT8 station from Japan

Japan Grid: ?

Amateur radio station JK1ATM operating from Japan. 935 FT8 spots received at SO8OO WebSDR, 143 CQ calls, active on 40m, 20m, over 63 days, best SNR +30 dB. Heard between 2026-04-27 and 2026-07-25.

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

Overview

935
Total spots
143
CQ calls
63
Days active
-5 dB
Avg SNR

Bands

20m 40m
First seen: 2026-04-27
Last seen: 2026-07-25 16:36 UTC

Frequent QSO partners observed at SO8OO

Stations JK1ATM worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJK1ATMPartnerPartner SNRMsgs
07-24 21:23 20m +6 / - IV3DSG - / -20 3 ✓ Confirmed
07-23 18:24 20m -15 / - RU3QR - / +6 3 Partial
07-22 20:32 20m -12 / - IZ4VSD - / -14 3 ✓ Confirmed
07-21 18:14 40m -11 / - UA4FKT - / -19 2 Partial
07-21 17:14 20m -12 / - YO9HB - / - 2 ✓ Confirmed
07-20 19:00 40m -20 / - UA3GT - / -15 2 Partial
07-20 18:34 20m -5 / - F5HNQ - / - 3 ✓ Confirmed
07-20 18:31 20m -16 / - YO9CX - / -17 2 Partial
07-19 18:04 20m -16 / - PD8RUK - / -23 9 ✓ Confirmed
07-19 18:02 20m -11 / - US0QV - / -18 3 ✓ Confirmed
07-19 17:46 20m +4 / - OE3EHS - / -12 2 Partial
07-19 17:36 20m -7 / - EA1B - / -11 2 ✓ Confirmed
07-18 19:42 40m -4 / - IQ4JO - / -19 10 Partial
07-17 21:06 20m +17 / - 9A2RD - / -18 3 ✓ Confirmed
07-17 21:04 20m 0 / - EC5K - / -14 2 ✓ Confirmed
07-17 20:56 20m +2 / - EC5K - / -17 2 Partial
07-17 19:22 20m -7 / - R5AV - / -21 2 Partial
07-17 19:06 20m -18 / - LZ2PC - / -12 3 ✓ Confirmed
07-17 17:15 20m +8 / - HB9COF - / - 2 ✓ Confirmed
07-17 17:09 20m +6 / - IN3THU - / - 2 Partial
07-17 16:28 20m -7 / - 4L7T - / - 4 Partial
07-17 16:23 20m -8 / - 4L7T - / - 2 Partial
07-17 10:26 20m -18 / - UA9CK - / - 3 Partial
07-15 17:32 20m +7 / - UT7UJ - / -22 5 Partial
07-15 17:02 20m 0 / - IK2GAU - / - 3 Partial
07-15 16:54 20m -24 / - RG2V - / -24 2 Partial
07-15 16:54 20m -6 / - RW4HB - / - 2 Partial
07-15 16:29 20m +10 / - IV3KZF - / - 2 ✓ Confirmed
07-15 16:29 20m -7 / - DL5MK - / - 2 Partial
07-14 19:06 20m -13 / - R7BI - / -23 2 Partial
07-14 19:04 20m +11 / - S52WD - / -24 2 ✓ Confirmed
07-14 19:01 20m +13 / - S52WD - / - 2 Partial
07-13 17:46 20m -11 / - SP2SGZ - / - 3 Partial
07-13 17:41 20m -12 / - RA3QM - / -3 2 ✓ Confirmed
07-13 06:14 20m -9 / - DL1MKW - / - 3 ✓ Confirmed
07-12 18:02 20m +3 / - YO8RC - / -18 4 ✓ Confirmed
07-12 17:58 20m -4 / - IT9BCC - / -14 3 ✓ Confirmed
07-12 17:36 20m -9 / - EB5AFK - / -18 6 ✓ Confirmed
07-09 16:53 20m -10 / - IK2JYT - / - 3 Partial
07-09 16:53 20m -10 / - UB6LWX - / -21 4 Partial
07-07 18:17 20m -2 / - DF7EF - / -11 2 ✓ Confirmed
07-07 17:42 20m -11 / - RD4CC - / -21 3 ✓ Confirmed
07-07 17:38 20m -11 / - RV6HTZ - / -17 2 ✓ Confirmed
07-06 20:22 20m 0 / - IU2SMI - / - 3 Partial
07-06 20:16 20m -6 / - IK2WRI - / - 3 Partial
07-02 17:52 20m -20 / - R6SS - / -15 2 ✓ Confirmed
07-02 17:47 20m -5 / - DL1R - / -16 4 ✓ Confirmed
07-02 17:47 20m -14 / - SA3SHN - / -5 3 ✓ Confirmed
06-30 19:05 20m -14 / - LZ3YY - / -12 2 ✓ Confirmed
06-30 18:23 20m -17 / - RZ4FWA - / - 3 Partial

Station Log

20m 
UTC    dB  Freq  Message
183615  -5 2277  JK1ATM F5HNQ 73
171445  -9 1801  JK1ATM YO9HB KN34 (x2)
203200 -15 1120  JK1ATM IZ4VSD JN54 (x3)
182400 -13  942  JK1ATM RU3QR +06 (x5)
212345  +5  777  JK1ATM IV3DSG JN66 (x3)
183615  -2 2445  JK1ATM R2ET/9 R-12
40m 
UTC    dB  Freq  Message
194415  -4 2552  JK1ATM IQ4JO R-18 (x7)
182815  -9  830  JK1ATM YO9HP -14
182815  +2 2679  JK1ATM IQ4JO JN63
190045 -20 2034  JK1ATM UA3GT -15 (x2)
191115 -14  237  JK1ATM RJ6ON -14
181415 -24 1913  JK1ATM RA5AK -18
181415 -11 1764  JK1ATM UA4FKT LO23 (x2)

SNR History by Band