JH4ALY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Locator transmitted in a decoded message: PM54

Receiver-side FT8 activity involving JH4ALY, decoded by SO8OO in southeastern Poland. 43 related FT8 messages, observed on 80m, 40m, 20m, 10m, across 12 UTC dates. Heard between 2026-06-09 and 2026-08-20.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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

Overview

43
Related messages
0
CQ messages
12
UTC dates heard
-3 dB
Mean decoder S/N

Bands

First seen: 2026-06-09
Last seen: 2026-08-20 18:06 UTC

Activity Heatmap

Locator transmitted by JH4ALY

Approximate centre of PM54, decoded 2026-08-20 20:05 UTC. A transmitted locator is not proof of the operator's permanent location.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandJH4ALY S/NCounterpartCounterpart S/NMsgsCapture
08-20 20:05 20m -12 / -9 D2IM -7 / - 4 Partial capture
08-20 19:41 20m - / - ON4IQ +22 / - 2 Partial capture
08-19 19:30 40m - / -16 SP9NR -2 / - 6 Partial capture
08-18 19:32 40m - / -14 9A4ZM 0 / - 2 ✓ Closing fragment
08-18 19:29 40m - / -5 OK1WCF +13 / - 3 ✓ Closing fragment
08-18 19:27 40m - / -4 DK7ZT -22 / - 2 ✓ Closing fragment
08-10 22:00 20m - / - IZ1JIZ -16 / - 2 Partial capture
08-10 20:25 80m - / -23 OH1MLZ +4 / - 2 ✓ Closing fragment
07-22 16:00 40m - / - UA4FKT -4 / - 2 ✓ Closing fragment
07-12 17:22 20m -8 / - US5HL - / -11 2 ✓ Closing fragment
07-12 17:21 20m -8 / - R5AV -4 / - 2 ✓ Closing observed
07-12 17:17 20m - / +2 DL4OAN -5 / - 3 ✓ Closing fragment
07-12 17:17 20m - / - IS0LAY -6 / - 2 Partial capture
07-12 17:15 20m - / -2 EB3JT +8 / - 2 ✓ Closing fragment
06-26 11:11 10m - / - R6FX -6 / - 2 Partial capture
06-10 08:18 10m - / -3 9X5KM +5 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

20m
UTC    dB Audio  Message
172145  -4 3030  JH4ALY R5AV RR73
172200  -8 3031  R5AV JH4ALY 73
172230  -7 3030  US5HL JH4ALY R-11 (x2)
180100 -23 2032  JH4ALY PD1ADA JO21 (x2)
220045 -18 1993  JH4ALY IZ1JIZ JN44 (x2)
194100 +20 2701  JH4ALY ON4IQ JO20 (x2)
195815 -15 3022  D2IM JH4ALY PM54 (x3)
200600  -8 2377  JH4ALY D2IM -09 (x2)
40m
UTC    dB Audio  Message
160145  -4 2785  JH4ALY UA4FKT 73
192700 -21 1906  JH4ALY DK7ZT -04 (x2)
192900 +18 2893  JH4ALY OK1WCF JO80 (x3)
193200  -1 2888  JH4ALY 9A4ZM R-14 (x2)
193600 -23 2309  JH4ALY RU3XW KO84
193000  -1  301  JH4ALY SP9NR JN99 (x6)
80m
UTC    dB Audio  Message
202530  +6 1979  JH4ALY OH1MLZ -23 (x2)
10m
UTC    dB Audio  Message
081800  +6  795  JH4ALY 9X5KM -03 (x3)
111100  -9  291  JH4ALY R6FX LN14 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.