S53AK — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,323 messages

Active dates

10 UTC dates

Estimated median S/N

-2 dB

Estimated 10th-90th percentile

-9 to +5 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 144, strong (≥ -8 dB) 1,173.

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 S53AK 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 S53AK

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

JN76 · 886 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

631 km (approx.)

Last such locator decoded

2026-09-20 11:15 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
110730  -3 1460  SQ3TR S53AK JN76
110745  +6  368  S53AK SQ3TR -07
110800  -4 1460  SQ3TR S53AK R-06
110815 +17  367  S53AK SQ3TR RR73
110830  -4 1460  SQ3TR S53AK 73
110945 -11 1460  CQ S53AK JN76 (x2)
111045  -8 1459  DN1DAS S53AK JN76 (x5)
111445  -1 1458  OP4F S53AK JN76 (x3)

UTC    dB Audio  Message
164415 -14 1363  S53AK OZ1EDR JO65 (x2)
191315  -5  595  S53AK 4L6EZ RR73 (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.