JF2KOZ — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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

Receiver-side FT8 activity involving JF2KOZ, decoded by SO8OO in southeastern Poland. 40 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-21.

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 40 FT8 messages attributed to JF2KOZ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (98%), followed by 40 m (3%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (80%); the estimated median was -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 1 20m · 39

First attributed message: 2026-06-07
Last attributed message: 2026-09-21 19:52 UTC

Observed FT8 message patterns

Attributed sample: 40 messages
Active dates: 3 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -15 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 5.

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 JF2KOZ in decoded directed-looking exchanges:

5B4AMM · Cyprus 7X5CY · Algeria 9A3K · Croatia 9A3TY · Croatia 9K2GR · Kuwait DL1UDO · Fed. Rep. of Germany DL3EBJ · Fed. Rep. of Germany DL9AJ · Fed. Rep. of Germany EA2A · Spain EA2K · Spain EA5JLN · Spain ER3BN · Moldova

Most frequent locator attributed to JF2KOZ

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 · 24 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,675 km (approx.)
Last such locator decoded: 2026-09-21 19:52 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	JF2KOZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 19:50	40m	- / -	HB9HRR	-14 / -	5	Partial capture
08-30 21:56	20m	- / +5	F4AGZ	-15 / -	2	✓ Closing fragment
08-30 21:53	20m	- / -6	DL3EBJ	-4 / -	2	✓ Closing fragment
08-28 21:30	20m	- / -	LZ2EW	-2 / -	2	Partial capture
08-28 21:30	20m	- / -20	EP2AES	-12 / -	3	Partial capture
08-28 21:28	20m	- / -17	IW4DNI	+10 / -	7	Partial capture
08-28 21:11	20m	- / -12	EA2K	+10 / -	2	✓ Closing fragment
08-26 21:44	20m	- / +3	9A3TY	-3 / -	2	✓ Closing fragment
08-26 21:30	20m	- / 0	G3VCQ	+11 / -	3	✓ Closing fragment
08-25 19:11	20m	- / -17	F4MLN	+12 / -	2	✓ Closing fragment
08-23 21:34	20m	-11 / -	ON5GQ	- / -	5	Partial capture
08-23 21:32	20m	-9 / -	5B4AMM	- / -4	2	✓ Closing fragment
08-23 21:29	20m	-15 / -5	EA5JLN	-1 / -14	7	✓ Full exchange observed
08-23 21:18	20m	-16 / -	UA6ADU	- / -8	2	✓ Closing fragment
08-23 21:14	20m	-12 / -	SQ9SF	- / -16	3	✓ Closing fragment
08-23 21:07	20m	-10 / -	ER3BN	- / -2	2	✓ Closing fragment
08-23 21:05	20m	-9 / -	IU1QYF	- / -21	3	✓ Closing fragment
08-23 21:04	20m	-15 / -	IK0QDM	- / -	2	Partial capture
08-23 21:03	20m	-13 / -	EA7EZ	- / -	2	Partial capture
08-23 20:55	20m	-7 / -	ER3BN	- / -	3	Partial capture
08-23 20:49	20m	-10 / -13	IS0LYN	-8 / -	3	✓ Closing observed
08-13 20:32	20m	- / -12	F6EKI	-9 / -	2	✓ Closing fragment
08-10 21:27	20m	- / -13	OK1FHI	+6 / -	3	✓ Closing fragment
08-10 21:20	20m	- / -13	9A3K	+2 / -	2	✓ Closing fragment
08-10 19:53	20m	- / -15	PA4O	-1 / -	3	✓ Closing fragment
08-07 21:48	20m	- / -9	OK2CNI	+2 / -	2	✓ Closing fragment
08-07 21:28	20m	- / -8	7X5CY	-1 / -	2	✓ Closing fragment
07-31 20:12	20m	- / -25	LA2GCA	-14 / -	2	✓ Closing fragment
07-30 20:51	20m	- / -14	EA2A	+15 / -	3	✓ Closing fragment
07-28 20:07	20m	- / -23	IS0/IK2YCW	0 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
195000 -17 1234  JF2KOZ HB9HRR JN47 (x3)
195215 -13  650  RI1FJZ JF2KOZ PM84
195230 -13 1234  JF2KOZ HB9HRR JN47 (x2)

20m

UTC    dB Audio  Message
212930 +12 1665  JF2KOZ IW4DNI -17 (x2)
213015 -11 2103  JF2KOZ EP2AES -20
213030  +8 1665  JF2KOZ IW4DNI -17
213045  -6 2024  JF2KOZ LZ2EW KN13
213045 -13 2103  JF2KOZ EP2AES -20
213100 +13 1665  JF2KOZ IW4DNI -17
213115  +1 2023  JF2KOZ LZ2EW KN13
213115 -11 2102  JF2KOZ EP2AES -20
213130 +13 1665  JF2KOZ IW4DNI -17
215045  +2  301  JF2KOZ EA3NE RRR
215330  -6 1672  JF2KOZ DL3EBJ -06 (x2)
215600 -17 1850  JF2KOZ F4AGZ +05 (x2)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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