JH4BYZ — FT8 station from Japan

Japan Grid: ?

Amateur radio station JH4BYZ operating from Japan. 757 FT8 spots received at SO8OO WebSDR, 348 CQ calls, active on 40m, 20m, over 61 days, best SNR +29 dB. Heard between 2026-04-21 and 2026-06-28.

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Overview

757
Total spots
348
CQ calls
61
Days active
-4 dB
Avg SNR

Bands

20m 40m
First seen: 2026-04-21
Last seen: 2026-06-28 18:11 UTC

Frequent QSO partners observed at SO8OO

Stations JH4BYZ worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandJH4BYZPartnerPartner SNRMsgs
06-28 20:06 20m -11 / - EC5M - / -14 2 ✓ Confirmed
06-28 19:39 20m -5 / - S55A - / -14 2 ✓ Confirmed
06-25 21:03 20m +6 / - DF3IS - / -12 2 ✓ Confirmed
06-23 12:51 20m -10 / - R4ML - / -9 2 Partial
06-20 20:43 20m -8 / - CT7ALI - / - 2 Partial
06-19 20:37 20m +21 / - II9RICT - / -15 2 Partial
06-18 21:00 20m -6 / - IQ2DB - / -13 2 ✓ Confirmed
06-18 20:53 20m - / -8 BA6IM -9 / - 3 ✓ Confirmed
06-18 20:26 20m 0 / - IZ2QGB - / -14 4 ✓ Confirmed
06-18 20:24 20m -5 / - RA6B - / -11 3 ✓ Confirmed
06-18 20:11 20m +2 / -17 TA3NK -16 / - 7 Partial
06-17 20:45 20m - / - 9K2MP -14 / - 3 Partial
06-17 20:31 20m - / - CX5AL -9 / - 5 Partial
06-17 20:07 20m -12 / -2 BG4OOO -15 / -3 6 ✓ Complete
06-16 20:26 20m 0 / - IQ5AAR -21 / -18 3 ✓ Verified
06-14 21:19 20m -8 / - IT9HJQ - / -12 2 ✓ Confirmed
06-14 21:14 20m -7 / - SV4ZQ - / -7 2 Partial
06-14 20:59 20m - / - 7Z1CB -12 / - 2 Partial
06-13 20:46 20m - / - IQ8DO -12 / - 2 Partial
06-13 20:42 20m -9 / - EA5ASQ -12 / - 2 ✓ Verified
06-13 20:40 20m - / -13 EW4IDP -6 / - 2 ✓ Confirmed
06-13 20:39 20m -11 / -17 R6FMF -5 / - 3 ✓ Verified
06-13 20:38 20m - / -8 UR4QWW -2 / - 2 ✓ Confirmed
06-13 20:33 20m - / - TA1SW -2 / - 2 Partial
06-13 20:29 20m - / - PS8CW -6 / - 2 Partial
06-13 20:23 20m - / -25 N7IEQ -10 / - 4 ✓ Confirmed
06-13 20:19 20m - / -13 9K2KU -10 / - 3 ✓ Confirmed
06-13 20:19 20m -7 / - YO7VNS - / - 7 Partial
06-13 20:03 40m +7 / - DL9AJ - / - 3 Partial
06-12 20:13 20m - / - DK9UD -10 / - 2 Partial
06-12 20:11 20m - / - 9A5MP -11 / - 2 Partial
06-11 21:19 20m - / - IS0KNG -13 / - 2 Partial
06-11 21:18 20m - / - EA3GIW -11 / - 3 Partial
06-11 21:13 20m - / - IZ4WNQ -9 / - 2 Partial
06-11 21:08 20m - / - IQ9USG -5 / - 2 Partial
06-11 21:04 20m - / -12 BG5FPK -5 / - 3 Partial
06-11 21:00 20m +9 / -10 EA5EE -8 / -12 5 ✓ Complete
06-11 20:57 20m - / -12 9A2RI -7 / - 4 ✓ Confirmed
06-11 20:53 20m - / -14 OE1AES -10 / - 6 ✓ Confirmed
06-11 20:51 20m -3 / - EA3RT -13 / -12 2 ✓ Verified
06-11 20:49 20m -6 / -12 R3LCG -12 / -17 6 ✓ Complete
06-11 20:45 20m - / - 9A9N -12 / - 2 Partial
06-11 20:41 20m - / -15 DL2FX -10 / - 3 ✓ Confirmed
06-11 12:39 20m -7 / - R4FBJ - / - 2 Partial
06-10 20:58 20m +6 / - IK8TPB - / -5 3 ✓ Confirmed
06-10 20:53 20m -7 / - IK2YVA - / - 2 ✓ Confirmed
06-10 20:51 20m -19 / - IW0BLW - / -6 3 ✓ Confirmed
06-10 20:50 20m -8 / - EA3AYQ - / -21 2 ✓ Confirmed
06-10 20:46 20m -14 / - PI4APD - / - 2 Partial
06-10 20:41 20m -7 / -15 PA2PAT +2 / -15 5 ✓ Complete

Station Log

20m 
UTC    dB  Freq  Message
203215 -13 3045  CQ JH4BYZ PM64
203700 +22  674  JH4BYZ II9RICT -15 (x2)
204330  -8 2907  JH4BYZ CT7ALI IN51 (x2)
125130 -10  553  JH4BYZ R4ML -09 (x2)
210315  +8 2528  JH4BYZ DF3IS -12 (x2)
203000 -14 1770  JH4BYZ AO25HSJ R-21
193930  -7  710  JH4BYZ S55A -14 (x2)
200645 -14  888  JH4BYZ EC5M -14 (x2)
201115 -15  652  JH4BYZ 4L6EZ 73
40m 
UTC    dB  Freq  Message
204745 +14 2762  JH4BYZ UA1CEI R-22 (x4)
202100 -15 2023  JH4BYZ UB6OCP 73
202300  -8 2938  JH4BYZ RA6FRI LN13 (x2)
202430  +3  816  JH4BYZ TA4EE KM46
202700  +9 2935  JH4BYZ EA1YV IN52
202700  +3 2792  JH4BYZ R5BS KO85
202730  +6 2935  JH4BYZ EA1YV IN52
200330  +7  974  JH4BYZ DL9AJ JO52 (x3)
201330  -2  289  JH4BYZ R6LPF KN97

SNR History by Band