7M4CLF — 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: PM95

Receiver-side FT8 activity involving 7M4CLF, decoded by SO8OO in southeastern Poland. 62 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-16.

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 62 FT8 messages attributed to 7M4CLF as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -1 dB; no usual signal pattern is inferred.

Overview

62
Messages attributed
1
UTC dates decoded
4
Active 15-min windows
-1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-16
Last attributed message: 2026-06-16 18:36 UTC

Observed FT8 message patterns

Attributed sample
62 messages
Active dates
1 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-3 to +2 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 62.

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 7M4CLF in decoded directed-looking exchanges:

Most frequent locator attributed to 7M4CLF

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
PM95 · 9 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,693 km (approx.)
Last such locator decoded
2026-06-16 18:36 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 UTCBand7M4CLF S/NCounterpartCounterpart S/NMsgsCapture
11-01 14:38 80m - / - RK6OQ -2 / - 2 Partial capture
11-01 14:33 80m - / - RK6OQ -2 / - 2 Partial capture
11-01 14:33 80m - / -15 UN7LZ -14 / - 2 ✓ Closing fragment
11-01 14:32 80m - / - RU3GF +7 / - 4 Partial capture
09-22 15:33 80m - / -9 YE4FNN -13 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
153330 -14 2225  7M4CLF YE4FNN OI37 (x3)
143200  +9 2515  7M4CLF RU3GF KO92
143200 -17 1259  7M4CLF R8PG -17
143230  +8 2515  7M4CLF RU3GF KO92 (x2)
143330 -15 2118  7M4CLF UN7LZ R-15
143330  +6 2515  7M4CLF RU3GF KO92
143330  -6 2019  7M4CLF RK6OQ KN87
143400 -12 2119  7M4CLF UN7LZ 73
143400  +2 2519  7M4CLF RK6OQ KN87 (x3)
20m
UTC    dB Audio  Message
154930  -4  452  7M4CLF <...> +03

CW

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

Explore CW reception at SO8OO

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