YH4SA — FT8 station from Indonesia

Indonesia Grid: LO19

Amateur radio station YH4SA operating from Indonesia (grid square LO19). 63 FT8 spots received at SO8OO WebSDR, active on 40m, 20m, over 4 days, best SNR +10 dB. Heard between 2026-07-09 and 2026-07-12.

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

Overview

63
Total spots
0
CQ calls
4
Days active
-8 dB
Avg SNR

Bands

40m 20m
First seen: 2026-07-09
Last seen: 2026-07-12 14:41 UTC

Frequent QSO partners observed at SO8OO

Stations YH4SA worked most often, as logged from our receiver:

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

TimeBandYH4SAPartnerPartner SNRMsgs
07-12 16:40 40m -10 / - RA1QEA - / - 2 Partial
07-12 16:28 40m -7 / - UT5MB - / -24 6 ✓ Confirmed
07-12 15:34 40m -8 / - UW5ZM - / - 2 ✓ Confirmed
07-11 16:57 40m -20 / - R7FT - / -16 2 Partial
07-11 16:12 40m -14 / - R7CD - / -9 2 ✓ Confirmed
07-11 16:07 40m -11 / - R7CD - / - 3 Partial
07-10 19:01 40m -6 / - LX1NO - / - 6 Partial
07-10 18:38 20m -8 / - CT7AUT - / - 3 Partial
07-10 18:05 40m -7 / - RV3ZK - / -19 3 ✓ Confirmed
07-10 17:50 40m -8 / - RK3AQ - / -14 2 ✓ Confirmed
07-10 17:41 40m +2 / - IQ4JO - / - 2 Partial
07-10 17:41 40m -4 / - LY7M - / -24 2 Partial
07-10 17:33 40m -13 / - UB6OFG - / -20 2 ✓ Confirmed
07-10 17:28 40m -12 / - R7DX - / - 2 Partial
07-10 17:26 40m -6 / - LY7M - / -12 2 Partial
07-10 17:14 40m -6 / - LY7M - / -7 2 Partial
07-09 16:26 40m -8 / - RW7M - / -18 2 Partial

Station Log

40m 
UTC    dB  Freq  Message
165845 -20 1631  YH4SA R7FT -16
153445  -7  535  YH4SA UW5ZM KN57 (x2)
154400  -2 2478  YH4SA UT5MB KN48
160115 -16 1610  YH4SA RA3AJT -16
160945 -15  816  YH4SA RU4F LO23
161130 -24 1905  YH4SA DK7ZT -25
162815  -5 2506  YH4SA UT5MB KN48 (x6)
164030 -10  762  YH4SA RA1QEA LO19 (x2)
20m 
UTC    dB  Freq  Message
183815  -8 1104  YH4SA CT7AUT IM67 (x3)

SNR History by Band