JH2FXK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: PM84

Receiver-side FT8 activity involving JH2FXK, decoded by SO8OO in southeastern Poland. 434 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 46 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-15.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 434 FT8 messages attributed to JH2FXK as the transmitting token by decoded message structure across 46 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (72%), followed by 40 m (18%) and 20 m (10%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14.1 dB.

Overview

434

Messages attributed

UTC dates decoded

Active 15-min windows

-14.1 dB

Estimated median S/N

Bands

80m · 314 40m · 78 20m · 42

First attributed message: 2026-06-12
Last attributed message: 2026-09-15 20:36 UTC

Observed FT8 message patterns

Attributed sample: 434 messages
Active dates: 46 UTC dates
Estimated median S/N: -14.1 dB
Estimated 10th-90th percentile: -21 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 193, moderate (-15 to -9 dB) 182, strong (≥ -8 dB) 59.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JH2FXK in decoded directed-looking exchanges:

RO2X · European Russia ×3 DL1RWN · Fed. Rep. of Germany ×2 F4JTM · France ×2 DK3ME · Fed. Rep. of Germany ×2 G4ZFJ · England ×2 IK0SHH · Italy ×2 OH3OJ/1 · Finland ×2 OH5LF · Finland ×2 PA3FPQ · Netherlands ×2 R4FV · European Russia ×2 SP6JIU · Poland ×2 SV8CKM · Greece ×2

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to JH2FXK

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: PM84 · 90 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,675 km (approx.)
Last such locator decoded: 2026-09-14 20:28 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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	JH2FXK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 21:03	40m	- / -10	HB9BUN	+2 / -	2	✓ Closing fragment
09-15 20:42	80m	- / -19	IT9KMN	-9 / -	2	✓ Closing fragment
09-15 20:31	80m	- / -	EA1R	-7 / -	3	Partial capture
09-15 20:18	80m	- / -11	OH4TQ	+6 / -	2	✓ Closing fragment
09-15 20:14	80m	- / -12	LB1UK	-12 / -	4	✓ Closing fragment
09-14 21:02	40m	- / -22	IU8VUX	-3 / -	4	✓ Closing fragment
09-14 20:54	40m	- / -18	HB9ELE	+13 / -	3	✓ Closing fragment
09-14 20:49	40m	- / +1	UT7UJ	+10 / -	3	✓ Closing fragment
09-14 20:49	40m	- / -8	II0IHMG	-2 / -	2	✓ Closing fragment
09-14 20:40	80m	- / -21	YO2MNZ	+10 / -	5	✓ Closing fragment
09-14 20:30	80m	- / -14	F4JOY	+6 / -	4	✓ Closing fragment
09-14 20:28	80m	- / -5	OH5LF	+13 / -	5	✓ Closing fragment
09-14 20:26	80m	-18 / -	HA0DU	- / -18	4	Partial capture
09-13 21:12	40m	-17 / -11	F6FHO	+5 / -15	3	✓ Full exchange observed
09-13 21:01	40m	-20 / -10	DH0GSU	-18 / -	2	✓ Closing observed
09-13 20:59	40m	-18 / -	OE6OCG	- / -18	3	Partial capture
09-13 20:58	40m	- / -	HB9TIH	-20 / -	2	Partial capture
09-13 20:58	40m	-18 / -	SP2YY	- / -10	2	✓ Closing fragment
09-13 20:45	80m	- / -	SP9UH	+6 / -	3	Partial capture
09-13 20:34	80m	- / -19	SP8FNA	+21 / -	4	Partial capture
09-13 20:32	80m	- / -25	IZ0BVU	+5 / -	7	✓ Closing fragment
09-13 20:27	80m	- / -13	R2BNC	+7 / -	2	✓ Closing fragment
09-11 21:12	40m	- / -	RC2GB	-9 / -	3	Partial capture
09-11 21:08	40m	-18 / -12	F5LQ	-5 / -	2	Partial capture
09-11 21:02	40m	- / -	F5PBG	+2 / -	4	Partial capture
09-11 21:00	40m	-13 / -14	PA4CC	+17 / -9	4	✓ Full exchange observed
09-11 20:58	40m	-12 / -	R8HC/P	- / -15	3	Partial capture
09-11 20:46	80m	- / -8	OH2BVT	-9 / -	2	✓ Closing fragment
09-11 20:40	80m	-16 / -26	IK0SHH	+3 / -	5	✓ Closing observed
09-11 20:37	80m	-10 / -8	IZ2AMW	-1 / -13	5	✓ Full exchange observed
09-11 20:36	80m	-9 / -	OE1TOA	-2 / -18	3	✓ Closing observed
09-11 20:35	80m	-12 / -	RC0AT/P	- / -18	2	Partial capture
09-11 20:32	80m	-10 / -	RC0AT/P	- / -	2	Partial capture
09-11 20:30	80m	-10 / -8	RO2X	+2 / -10	5	✓ Full exchange observed
09-11 20:28	80m	-9 / -	EA3FCQ	+3 / -16	5	✓ Closing observed
09-11 20:25	80m	-14 / -	EA3FCQ	- / -16	2	Partial capture
09-11 20:22	80m	- / -	9A7KWS	-6 / -	4	Partial capture
09-11 20:21	80m	-17 / -25	OK3FP	+14 / -16	5	✓ Full exchange observed
09-11 20:14	80m	- / -16	RA1OD	-15 / -	3	✓ Closing fragment
09-11 17:52	160m	- / -25	LY7M	+12 / -	3	✓ Closing fragment
09-10 21:05	40m	-15 / -18	EA5OM	-3 / -20	4	✓ Full exchange observed
09-10 21:04	40m	-14 / -	EI2CN	- / -11	2	Partial capture
09-10 20:59	40m	- / -	EI4FNB	-6 / -	2	Partial capture
09-10 20:58	40m	-14 / -16	RL3K	-3 / -11	5	✓ Full exchange observed
09-10 20:58	40m	-14 / -21	SV1DZB	-15 / -19	8	✓ Full exchange observed
09-10 20:57	40m	- / -14	GW0ARK	-2 / -	2	✓ Closing fragment
09-10 20:53	40m	- / -9	LA3ZPA	+5 / -	3	✓ Closing fragment
09-10 20:52	40m	- / -12	LZ2PC	-2 / -	2	Partial capture
09-09 21:02	40m	- / -17	IK5EEA	+5 / -	3	✓ Closing fragment
09-09 20:38	80m	- / -7	SP8ONV	-8 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
211315  +9 1233  JH2FXK F6FHO RR73
204900  -3  902  JH2FXK II0IHMG R-08
204930 +12 1102  JH2FXK UT7UJ +01
204930  +0  902  <JH2FXK> II0IHMG 73
205000 +13 1102  JH2FXK UT7UJ +01 (x2)
205400 +14  746  JH2FXK HB9ELE R-18 (x3)
210200  -3 2279  JH2FXK IU8VUX JN70 (x4)
210330  +4 2357  JH2FXK HB9BUN R-10 (x2)

80m

UTC    dB Audio  Message
201045 -15 2424  JH2FXK LB1UK JP54 (x5)
201845  +6 2849  JH2FXK OH4TQ -11 (x2)
203115 -11  577  JH2FXK EA1R IN73
203145  -1 2200  JH2FXK ON8DM JO10
203145  -3  577  JH2FXK EA1R IN73
203145 -10 1202  JH2FXK DH5BO JO43
203215  -8  577  JH2FXK EA1R IN73
203600 -13 1202  4L6EZ JH2FXK -16
204245  -9 1268  JH2FXK IT9KMN R-19 (x2)

160m

UTC    dB Audio  Message
175200 +15 2097  JH2FXK LY7M -25 (x3)

10m

UTC    dB Audio  Message
075115 -15 2412  JH2FXK E75CC R-16 (x2)
083615  -3 2669  JH2FXK ON6AA JO11 (x4)
084430  -8  558  JH2FXK Z34K -24 (x2)
084900  -4 2009  JH2FXK SV1CQN R+03 (x3)

20m

UTC    dB Audio  Message
210430 -17 2171  JH2FXK SV2SCB R-09
205330 -13  790  JH2FXK EA1IOK IN62
205715 -10 2766  IK8IRK JH2FXK RR73
205930 -19 1371  TU5MM JH2FXK -10 (x2)
210115 -21 1442  JH2FXK IT9MRM JM77 (x2)
210330 -18 1444  IT9MRM JH2FXK RR73
210415 -14 1371  JH2FXK IZ0MIT JN61 (x2)
210445 -21 1441  JH2FXK IT9MRM R-09
210545 -11 1364  JH2FXK IZ0MIT R-13
211600  -6 1025  JH2FXK M6WRB R-09 (x2)
212045  +2  269  JH2FXK F5MJN 73

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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