7N4CPV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: PM96

Receiver-side FT8 activity involving 7N4CPV, decoded by SO8OO in southeastern Poland. 3 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-08-23.

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 7N4CPV as the transmitting token by decoded message structure across 2 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

3
Messages attributed
2
UTC dates decoded
2
Active 15-min windows
-
S/N pattern not inferred

Bands

First attributed message: 2026-06-19
Last attributed message: 2026-08-23 21:49 UTC

Observed FT8 message patterns

Attributed sample
3 messages
Active dates
2 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 7N4CPV in decoded directed-looking exchanges:

Most frequent locator attributed to 7N4CPV

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
PM96 · 2 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,603 km (approx.)
Last such locator decoded
2026-06-19 22:58 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 UTCBand7N4CPV S/NCounterpartCounterpart S/NMsgsCapture
09-10 20:40 40m - / -15 5B4AMM -15 / - 2 ✓ Closing fragment
08-23 13:23 10m - / -16 ON4IQ -8 / - 2 ✓ Closing fragment
07-20 19:45 20m - / -9 R4FDW -18 / - 5 ✓ Closing fragment
07-15 20:59 20m - / -12 YO4NF +8 / - 2 ✓ Closing fragment
06-29 19:51 20m - / -14 EA7ALL +11 / - 4 ✓ Closing fragment
06-29 19:41 20m - / -21 <...> +6 / - 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
204030 -14 1985  7N4CPV 5B4AMM R-15 (x2)
210130  +0  616  7N4CPV DL70ESSEN R-14
20m
UTC    dB Audio  Message
194215  +4 2905  7N4CPV <...> 73
195100 +14  522  7N4CPV EA7ALL IM88 (x4)
205900  +6 2946  7N4CPV YO4NF -12 (x2)
194430  -5 1220  7N4CPV YO8RQP KN37
194530 -13 1225  7N4CPV R4FDW -09 (x5)
152930 -15  670  7N4CPV OD5ZZ -11
214945 -15 2494  P29XZ 7N4CPV -18
10m
UTC    dB Audio  Message
114400 -21 2242  7N4CPV 7Q3WS RR73
132315 -10 2598  7N4CPV ON4IQ -16 (x2)

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