9Z4CT — reception at SO8OO

Observed FT8 message patterns

Attributed sample

12 messages

Active dates

5 UTC dates

Estimated median S/N

-19 dB

S/N percentile sample

Too small

Recurring-pattern threshold

Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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 9Z4CT in decoded directed-looking exchanges:

Most frequent locator attributed to 9Z4CT

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

FK90 · 7 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

8,602 km (approx.)

Last such locator decoded

2026-09-21 00:12 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.

Recent FT8 messages decoded at SO8OO

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

UTC    dB Audio  Message
233200  -9 2034  9Z4CT M6WRB -02 (x3)
001230 -15 1508  CQ 9Z4CT FK90
001245 -14  876  9Z4CT N4DWD EM86
215300 -19 2205  9Z4CT WB2IQG FM29
215300 -16 1255  9Z4CT IT9IST JM78
215330 -18 2205  9Z4CT WB2IQG FM29
215530 -14 1255  9Z4CT IT9IST JM78
215630  -6 2934  9Z4CT LB6NK JP20
215645  +2 1574  9Z4CT F4JDM -15 (x5)

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.