JA9CHI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Locator transmitted in a decoded message: PM86

Receiver-side FT8 activity involving JA9CHI, decoded by SO8OO in southeastern Poland. 277 related FT8 messages, observed on 80m, 40m, 20m, 10m, across 39 UTC dates. Heard between 2026-05-22 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.

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Overview

277

Related messages

CQ messages

UTC dates heard

-5 dB

Mean decoder S/N

Bands

80m 20m 40m 10m

First seen: 2026-05-22
Last seen: 2026-08-20 18:06 UTC

Frequent QSO partners observed at SO8OO

Stations JA9CHI worked most often, as logged from our receiver:

YO3WST · Romania ×2 RO2X · European Russia EG7VER · Spain YO8RJU · Romania HB9RTR · Switzerland SP4ART · Poland BD7PWV · China DL6EL · Fed. Rep. of Germany ZD8KX · Ascension Island UA3PY · European Russia EA5JLN · Spain SQ9OUM · Poland

Activity Heatmap

Locator transmitted by JA9CHI

Approximate centre of PM86, decoded 2026-08-23 22:05 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 UTC	Band	JA9CHI S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 22:03	20m	-10 / -	MW1CFA	- / -	3	Partial capture
08-23 22:02	20m	-12 / -	M8XDZ	- / -24	2	✓ Closing fragment
08-23 21:53	20m	-8 / -	LZ1EV	- / -	2	Partial capture
08-23 21:52	20m	-10 / -	<...>	- / -	2	Partial capture
08-23 21:47	20m	-10 / -	EA5JLN	- / -15	8	✓ Closing fragment
08-20 20:05	20m	- / -	CT7AUT	+2 / -	3	Partial capture
08-20 20:04	20m	- / -25	MM0TBH	-3 / -	5	Partial capture
08-20 19:47	40m	-22 / -	F4ENK	+5 / -11	5	✓ Closing observed
08-20 19:45	40m	- / -	SQ8V	-4 / -	2	Partial capture
08-20 19:45	40m	-23 / -	RA4Y	+6 / -18	5	Partial capture
08-20 19:45	40m	- / -16	SP9CVY	0 / -	3	✓ Closing fragment
08-20 19:43	40m	- / -18	HA3GO	+6 / -	2	✓ Closing fragment
08-20 19:40	40m	- / -17	F4ENK	+4 / -	2	Partial capture
08-19 19:38	20m	- / -	DL1R	-9 / -	6	Partial capture
08-19 19:38	20m	- / +4	I1EIS	-2 / -	4	✓ Closing fragment
08-16 20:43	40m	- / -	LZ1GC	-10 / -	4	Partial capture
08-16 20:23	20m	- / -	DL9KM	-14 / -	7	Partial capture
08-16 20:18	20m	- / -	F4NGC	-2 / -	4	Partial capture
08-16 19:40	20m	- / -	DH5AZ	-12 / -	3	✓ Closing fragment
08-16 19:36	20m	- / -	M8KKH	-7 / -	6	✓ Closing fragment
08-12 20:07	20m	- / -	ON7NQ	-3 / -	15	Partial capture
08-12 20:02	20m	- / -	ON7NQ	0 / -	2	Partial capture
08-11 19:24	40m	- / -	IT9VCE	-5 / -	3	Partial capture
08-11 19:18	40m	- / -9	SP6TGI	-6 / -	4	✓ Closing fragment
08-11 19:14	40m	- / -15	EU4U	-3 / -	3	✓ Closing fragment
08-11 19:14	40m	- / -11	IC8JAH	-14 / -	3	Partial capture
08-09 19:33	20m	- / -	Z34K	-12 / -	2	Partial capture
08-07 20:42	20m	- / -25	M1IHM	-8 / -	4	Partial capture
08-07 20:31	20m	- / +5	PI4DX	-2 / -	6	✓ Closing fragment
08-03 11:25	20m	- / -17	UT7UJ	-2 / -	4	Partial capture
07-31 19:46	20m	- / -4	EH5FJI	-4 / -	2	✓ Closing fragment
07-29 20:18	20m	- / -	M8KUG	-9 / -	7	Partial capture
07-26 21:47	20m	- / -20	G0LZX	-10 / -	2	✓ Closing fragment
07-25 12:22	20m	- / -	DD6WF	+5 / -	2	Partial capture
07-25 12:22	20m	- / -	IK4LZH	-1 / -	4	Partial capture
07-23 20:48	40m	- / -22	LZ1ZF	-16 / -	2	✓ Closing fragment
07-23 19:39	20m	-12 / -	9A6A	- / -	2	Partial capture
07-23 19:34	20m	-10 / -	DL6EL	- / -12	2	✓ Closing fragment
07-23 19:32	20m	-13 / -	EX8ABR	- / -12	3	✓ Closing fragment
07-23 19:26	20m	-14 / -	YO8RJU	- / -23	2	✓ Closing fragment
07-13 19:38	80m	- / -	UA4QK	-2 / -	4	Partial capture
07-13 19:34	80m	- / -	RG5A	+9 / -	4	Partial capture
07-13 19:33	80m	- / -	RK6MC	+11 / -	4	Partial capture
07-13 19:32	80m	- / -14	R4PF	-14 / -	2	Partial capture
07-13 19:31	80m	-22 / -14	RO2X	+4 / -	6	✓ Closing observed
07-13 19:27	80m	- / -	IZ7QFN	+5 / -	5	Partial capture
07-13 19:19	80m	- / -12	UA3PY	+11 / -	6	✓ Closing fragment
07-13 19:18	80m	- / -17	UA3VVA	-2 / -	2	✓ Closing fragment
07-12 21:36	20m	- / -12	EG7VER	-6 / -	3	✓ Closing fragment
07-08 19:01	80m	- / -20	RW4F	-8 / -	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
214930 -14 1076  EA5JLN JA9CHI R-15 (x4)
215215 -10 1076  <...> JA9CHI PM86 (x2)
215315  -8 1076  LZ1EV JA9CHI PM86 (x2)
215445 -11 1076  M8MFU JA9CHI R-17 (x2)
220245 -10 1076  M8XDZ JA9CHI R-24 (x2)
220345 -11 1076  MW1CFA JA9CHI PM86 (x3)

40m

UTC    dB Audio  Message
194515  +8  691  JA9CHI RA4Y LO35
194545  -4  760  JA9CHI SQ8V KO01
194545  +6  691  JA9CHI RA4Y LO35
194545  +0  981  JA9CHI SP9CVY R-16
194615  -5  760  JA9CHI SQ8V KO01
194615  -1  981  JA9CHI SP9CVY 73
194615  +6  691  JA9CHI RA4Y LO35 (x2)
194715  +1 1259  JA9CHI F4ENK JN06 (x2)
194800 -23 1414  RA4Y JA9CHI -18
194815  +7 1259  JA9CHI F4ENK JN06
194830 -22 1414  F4ENK JA9CHI -11
194915  +0 1415  JA9CHI RN6HK LN14
194915  +6  759  JA9CHI F4ENK 73

80m

UTC    dB Audio  Message
193300  +6 2441  JA9CHI RO2X R-14
193300 +12 1181  JA9CHI RK6MC KN97
193315 -22  737  RO2X JA9CHI RR73
193330  +9 1181  JA9CHI RK6MC KN97
193330  +5 2441  JA9CHI RO2X 73
193400 +11  658  JA9CHI RG5A KN93
193400 +11 1181  JA9CHI RK6MC KN97 (x2)
193430 +10  658  JA9CHI RG5A KN93 (x3)
193800  +6  924  JA9CHI UA4QK LO45 (x4)

10m

UTC    dB Audio  Message
092230  -7  384  JA9CHI C91RU +00 (x11)
092630 -13 2043  JA9CHI ZS5HR RR73
112100 -11  819  JA9CHI 9X5KM -16
120430 -13  819  JA9CHI RR73; JL1DUE <...> +14
105830 -22 1843  JA9CHI 7Q9BK -21

Decoder S/N history by band

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