JA4OKP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Locator transmitted in a decoded message: PM64

Receiver-side FT8 activity involving JA4OKP, decoded by SO8OO in southeastern Poland. 61 related FT8 messages, observed on 80m, 40m, 20m, across 10 UTC dates. Heard between 2026-05-26 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.

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

Overview

Related messages

CQ messages

UTC dates heard

+8 dB

Mean decoder S/N

Bands

80m 40m 20m

First seen: 2026-05-26
Last seen: 2026-08-23 18:38 UTC

Frequent QSO partners observed at SO8OO

Stations JA4OKP worked most often, as logged from our receiver:

Z32C · North Macedonia TL8GD · Central African Republic LY8O · Lithuania IH9YMC · African Italy UR1CCT · Ukraine 9J2FI · Zambia YO4NT · Romania GW8DX · Wales ON4AOI · Belgium ON6AA · Belgium DJ7M · Fed. Rep. of Germany EU3AA · Belarus

Activity Heatmap

Locator transmitted by JA4OKP

Approximate centre of PM64, decoded 2026-08-23 19:48 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	JA4OKP S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 20:37	80m	- / -18	YO4NT	+10 / -	2	✓ Closing fragment
08-23 19:48	80m	-24 / -	IK5CHL	- / -	2	Partial capture
08-23 19:43	80m	- / -11	DJ7M	+18 / -	2	✓ Closing fragment
08-23 19:37	40m	- / -6	UR1CCT	+22 / -	5	✓ Closing fragment
08-22 20:37	40m	- / -18	ON4AOI	+8 / -	9	✓ Closing fragment
08-21 20:38	40m	- / -20	GW8DX	+11 / -	4	Partial capture
08-17 20:15	80m	- / -12	LY8O	+3 / -	2	✓ Closing fragment
08-16 20:20	20m	- / -12	ON6AA	+3 / -	3	✓ Closing fragment
08-12 19:25	80m	- / -	OH1MLZ	+10 / -	5	Partial capture
08-12 19:24	80m	- / -	EU3AA	+2 / -	2	✓ Closing fragment
06-10 23:17	20m	- / -25	GW8DX	+8 / -	3	✓ Closing fragment
06-10 20:04	20m	-11 / -21	G6PWY	+18 / +1	9	Partial capture
06-10 20:04	20m	- / -	IU2OQT	+1 / -	6	Partial capture
06-10 20:01	20m	-15 / -	Z32C	- / -18	3	✓ Closing fragment
06-02 20:43	20m	-11 / -10	9J2FI	0 / -11	7	✓ Full exchange observed
05-31 20:54	20m	-22 / -	Z34CMF	- / -14	2	Partial capture
05-26 20:36	20m	- / -12	TL8GD	-2 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
192500  +8 2268  JA4OKP OH1MLZ KP23
192530 +14 1610  JA4OKP EU3AA RR73
192530 +12 2268  JA4OKP OH1MLZ KP23 (x4)
201530  +2 1133  JA4OKP LY8O -12 (x2)
194345 +17  341  JA4OKP DJ7M -11 (x2)
194800 -24 1349  IK5CHL JA4OKP PM64 (x2)
203745  +8 1589  JA4OKP YO4NT -18 (x2)
203845  +4 2304  JA4OKP IK5CHL JN53

40m

UTC    dB Audio  Message
204100 +11 2754  JA4OKP RR73; JE2EHP <GW8DX> -20
203730  +9 2325  JA4OKP ON4AOI -18 (x9)
193730 +18  475  JA4OKP UR1CCT KN69 (x5)

20m

UTC    dB Audio  Message
200615 +18 1993  JA4OKP G6PWY R-21
200645  -1 2202  JA4OKP IU2OQT JN45
200645 +19 1993  JA4OKP G6PWY R-21 (x4)
200915  -7 2460  JA4OKP EA5OM IM99
231730  +7 2283  JA4OKP GW8DX -25 (x3)
195230  -4 2890  JA4OKP IH9YMC RR73
202045  +3 1478  JA4OKP ON6AA JO11 (x3)
202945  -4 1577  JA4OKP F4DWY -16

Decoder S/N history by band

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