JA4EII — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Locator transmitted in a decoded message: PM53

Receiver-side FT8 activity involving JA4EII, decoded by SO8OO in southeastern Poland. 23 related FT8 messages, observed on 40m, 20m, across 11 UTC dates. Heard between 2026-06-12 and 2026-08-22.

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.

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Overview

Related messages

CQ messages

UTC dates heard

-1 dB

Mean decoder S/N

Bands

40m 20m

First seen: 2026-06-12
Last seen: 2026-08-22 19:40 UTC

Frequent QSO partners observed at SO8OO

Stations JA4EII worked most often, as logged from our receiver:

SM6KTO · Sweden YO6LM · Romania SP6JIU · Poland SV1SSL · Greece F1DJY · France R9UBE · Asiatic Russia DA1EA · Fed. Rep. of Germany 9A2AJ · Croatia SV5BYP · Dodecanese

Activity Heatmap

Locator transmitted by JA4EII

Approximate centre of PM53, decoded 2026-06-18 22:01 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 UTC	Band	JA4EII S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 21:38	20m	- / -2	DA1EA	+12 / -	2	✓ Closing fragment
08-22 20:34	40m	- / -15	SP6JIU	+20 / -	3	✓ Closing fragment
08-20 20:46	40m	- / -24	YO4GIY	-8 / -	4	Partial capture
08-16 21:02	40m	- / -14	YO6LM	0 / -	2	✓ Closing fragment
08-04 10:06	20m	- / -18	F1DJY	-6 / -	2	✓ Closing fragment
06-28 22:23	20m	- / -12	SV5BYP	-13 / -	3	✓ Closing fragment
06-18 21:56	20m	-12 / -	A92AE	- / -	9	Partial capture
06-13 22:01	20m	-9 / -	A92AE	- / -	3	Partial capture
06-12 21:45	20m	- / +6	9A2AJ	+12 / -	2	✓ Closing fragment
05-28 21:41	20m	-11 / -	A92AE	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
215845 -15 2546  A92AE JA4EII PM53 (x5)
220900  -1 1713  JA4EII II9RICT -17
222300 -10 2035  JA4EII SV5BYP KM46 (x3)
200815 -12 1799  JA4EII EC3A -07
221930  -5 1808  JA4EII SM6KTO RR73
100615 -13 1286  JA4EII F1DJY -18 (x2)
213830 +13 2381  JA4EII DA1EA -02 (x2)

40m

UTC    dB Audio  Message
204800  -6 2938  JA4EII SV1SSL RR73
210245  -1 2733  JA4EII YO6LM -14 (x2)
204645 -10 1889  JA4EII YO4GIY -24 (x4)
203400 +19 2884  JA4EII SP6JIU -15 (x3)

Decoder S/N history by band

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