JH7WNV — 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: QM07

Receiver-side FT8 activity involving JH7WNV, decoded by SO8OO in southeastern Poland. 3 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-19.

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 3 FT8 messages attributed to JH7WNV as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

S/N pattern not inferred

Bands

20m · 3

First attributed message: 2026-06-19
Last attributed message: 2026-06-19 20:01 UTC

Observed FT8 message patterns

Attributed sample: 3 messages
Active dates: 1 UTC dates
S/N summary: Too few decodes
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JH7WNV in decoded directed-looking exchanges:

C31CT · Andorra D2IM · Angola 4O4A · Montenegro ON4IQ · Belgium OT7K · Belgium

Most frequent locator attributed to JH7WNV

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: QM07
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,616 km (approx.)
Last such locator decoded: 2026-06-19 20:00 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	JH7WNV S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 19:47	80m	- / -21	ON4IQ	+14 / -	2	✓ Closing fragment
10-29 20:56	80m	- / -17	OT7K	+13 / -	5	✓ Closing fragment
10-29 20:51	80m	- / -	OT7K	+12 / -	3	Partial capture
10-28 20:06	80m	- / -17	OT7K	+11 / -	4	Partial capture
10-24 20:31	80m	- / -	UA4FKT	0 / -	2	Partial capture
10-24 20:28	80m	- / -17	4O4A	+6 / -	5	✓ Closing fragment
10-15 20:21	80m	- / -19	OT7K	+8 / -	12	Partial capture
09-30 21:12	40m	- / -	ON7NQ	+9 / -	2	Partial capture
09-01 17:36	80m	- / -	YO2MAX	+22 / -	2	Partial capture
08-24 21:05	20m	- / -12	C31CT	+10 / -	2	✓ Closing fragment
08-20 18:28	20m	- / -4	D2IM	-8 / -	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
200630  +7 2001  JH7WNV OT7K -17 (x13)
194715 +16 2696  JH7WNV ON4IQ -21 (x2)

40m

UTC    dB Audio  Message
202800  -6 2889  JH7WNV RT6Z KN98
211230  +3 2824  JH7WNV ON7NQ JO21 (x2)

20m

UTC    dB Audio  Message
182830  -8 2376  JH7WNV D2IM -04 (x2)
210530  +6 2051  JH7WNV C31CT -12 (x2)

CW

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

Explore CW reception at SO8OO

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