JI3VUB — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

72 messages

Active dates

6 UTC dates

Estimated median S/N

-19 dB

Estimated 10th-90th percentile

-24 to -12 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 50, moderate (-15 to -9 dB) 22, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JI3VUB in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to JI3VUB

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

PM74 · 38 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

8,565 km (approx.)

Last such locator decoded

2026-09-17 16:50 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
164830 -24 1957  JI3VUB OH1IM KP01
164915 -20 2052  RI1FJZ JI3VUB PM74 (x4)
165130 +12 2689  JI3VUB IZ3ENH JN56
165145 -16 2052  RI1FJZ JI3VUB R-17
165200  +8 2689  JI3VUB IZ3ENH JN56 (x6)
165745 -24 2051  RI1FJZ JI3VUB R-17 (x2)

UTC    dB Audio  Message
152715  +5 1774  JI3VUB US7LM KN89 (x7)
153115  -9 2273  JI3VUB R6DYK -16 (x8)

UTC    dB Audio  Message
183100  -1 2153  JI3VUB OH2N -18

UTC    dB Audio  Message
213500  +2  814  JI3VUB DM5JBN JO60

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.