W9SX — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

78 messages

Active dates

9 UTC dates

Estimated median S/N

-24 dB

Estimated 10th-90th percentile

-24 to -16 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 71, moderate (-15 to -9 dB) 7, 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 W9SX 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 W9SX

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

EL88 · 28 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

8,589 km (approx.)

Last such locator decoded

2026-09-04 00:19 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
001345 -24 1752  LA3BO W9SX EL88
001400  +9 1407  W9SX LA3BO -12
001415 -24 1752  LA3BO W9SX R-12
001430  +6 1407  W9SX LA3BO RR73
001900 -23 1752  KM0T W9SX EL88 (x3)
002015  +8  679  W9SX PA3KUS JO21 (x3)
002130 -22 1753  W4HRC W9SX -05
002145 +11  678  W9SX PA3KUS JO21 (x3)
002845  +8 2022  W9SX TF3VS HP94

UTC    dB Audio  Message
011445 -20 1856  TJ1GD/P W9SX EL88 (x2)

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.