US8KA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,469 messages

Active dates

11 UTC dates

Estimated median S/N

-1 dB

Estimated 10th-90th percentile

-17 to +10 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 203, moderate (-15 to -9 dB) 232, strong (≥ -8 dB) 1,034.

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 US8KA 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 US8KA

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

KO30 · 856 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

376 km (approx.)

Last such locator decoded

2026-09-06 08:35 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
083145  +1 2140  CQ US8KA KO30 (x3)
083300  +7  766  US8KA SP3JPC JO71
083315  +6 2140  SP3JPC US8KA -08
083330  +4  766  US8KA SP3JPC R+03
083345  +3 2140  SP3JPC US8KA RR73
083400  +6  766  US8KA SP3JPC 73
083415  +4 2140  CQ US8KA KO30
083430  -3 1786  US8KA SQ1RTU JO73
083445  +5 2140  SQ1RTU US8KA -10
083500  -5 1786  US8KA SQ1RTU R-13
083515  +5 2140  SQ1RTU US8KA RR73
083530  -4 1786  US8KA SQ1RTU 73
083545  +2 2140  CQ US8KA KO30

UTC    dB Audio  Message
113230 -12 1054  US8KA G1OJS R-14 (x2)
114830  -9 2537  US8KA ON6FDP/P JO11 (x2)
115230 -15 2535  US8KA DJ1NE 73
115700  -5 2609  US8KA G0GHL IO82
130130 -13 1268  US8KA IK2IKW JN55 (x3)
130600  -4 2537  US8KA CT2GFJ 73
131430  +9 2259  US8KA F6FLU JN18
132600 -12  844  US8KA I1FLC -05 (x2)
133130  -8 2535  US8KA F4JUG 73
134400 -13 2535  US8KA IW5ABF R-21

UTC    dB Audio  Message
203530 -11 1602  US8KA DA6DE JO40

UTC    dB Audio  Message
134130  +1 2908  US8KA YO3HUI KN34 (x4)
134930  +0  724  US8KA DD1OO -12
135800  -8  768  US8KA DB5HA 73
140700  -8 1243  US8KA DL1ORI JO50 (x2)
140800 -10  767  US8KA OK1AR JO60 (x2)
141100 -10  767  US8KA DN9PHI 73
141200  -7  768  US8KA DL2VER R+04 (x2)
141400  -8  768  US8KA DB8JV R+09 (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.