JA4LAO — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving JA4LAO, decoded by SO8OO in southeastern Poland. 65 related FT8 messages, 3 CQ messages, observed on 20m, across 13 UTC dates. Heard between 2026-06-25 and 2026-08-23.

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

-4 dB

Mean decoder S/N

Bands

20m

First seen: 2026-06-25
Last seen: 2026-08-23 20:29 UTC

Frequent QSO partners observed at SO8OO

Stations JA4LAO worked most often, as logged from our receiver:

R2FAQ · Kaliningrad EB7HQE · Spain 4L7T · Georgia EA5JLB · Spain 4O4DB · Montenegro SV1TRJ · Greece EA5BYS · Spain CU2AP · Azores CT3MD · Madeira Islands IS0LYN · Sardinia EA8UP · Canary Islands GW4NOO · Wales

Activity Heatmap

Locator transmitted by JA4LAO

Approximate centre of PM54, decoded 2026-08-23 22:27 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	JA4LAO S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 22:26	20m	- / -	CT1FIU	-1 / -	5	Partial capture
08-23 21:39	20m	-4 / -13	EA5JLB	-10 / -10	6	✓ Full exchange observed
08-23 21:24	20m	-4 / -	IS0LYN	- / -10	2	✓ Closing fragment
08-23 21:21	20m	-9 / -10	EA8BYZ	-2 / -8	7	✓ Full exchange observed
08-22 22:16	20m	- / -13	R2FAQ	-10 / -	2	✓ Closing fragment
08-22 22:10	20m	- / -18	GW4NOO	-10 / -	2	✓ Closing fragment
08-22 21:33	20m	- / -12	4O4DB	-11 / -	3	✓ Closing fragment
08-22 21:26	20m	- / -11	EB3JT	+10 / -	2	✓ Closing fragment
08-22 21:19	20m	- / -	F6EKI	+14 / -	2	Partial capture
08-22 21:18	20m	- / -10	EA8UP	+2 / -	2	✓ Closing fragment
08-20 21:44	20m	- / -18	SP8NR	-2 / -	2	Partial capture
08-20 21:37	20m	- / -4	EB1DJ	+6 / -	2	Partial capture
08-09 10:09	20m	- / -	ON6AA	-8 / -	2	Partial capture
08-05 21:38	20m	- / -11	7X5CY	0 / -	2	Partial capture
08-04 22:14	20m	- / -6	CU2AP	-8 / -	2	✓ Closing fragment
08-02 21:18	20m	- / -1	4L7T	-2 / -	2	✓ Closing fragment
08-01 21:25	20m	- / -16	ON3KJU	-9 / -	2	✓ Closing fragment
08-01 00:18	20m	- / -15	EA1N	+17 / -	2	✓ Closing fragment
07-29 21:19	20m	- / -	EA3EQS	+3 / -	3	Partial capture
07-09 21:16	20m	- / -23	EA6UE	+2 / -	2	Partial capture
06-25 21:18	20m	- / -16	EB7HQE	-6 / -	4	✓ Closing fragment
06-25 21:13	20m	- / -18	EA5BYS	-5 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
214015 -10 1187  JA4LAO EA5JLB -13
214030  -5 2020  EA5JLB JA4LAO R-10 (x2)
214115 -10 1186  JA4LAO EA5JLB RR73
214130  -2 2019  EA5JLB JA4LAO 73
222445 -15 1517  M9TAM JA4LAO PM54
222600 -17 1516  CQ EU JA4LAO PM54
222615  +9 2133  JA4LAO IQ4JO JN63
222630 -17 1515  CQ EU JA4LAO PM54
222645  -4 1416  JA4LAO CT1FIU IN50
222700 -20 1515  CQ EU JA4LAO PM54
222715  -1 1416  JA4LAO CT1FIU IN50 (x4)

Decoder S/N history by band

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