RA4ACX — reception at SO8OO

Observed FT8 message patterns

Attributed sample

107 messages

Active dates

14 UTC dates

Estimated median S/N

-16 dB

Estimated 10th-90th percentile

-23 to -9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 60, moderate (-15 to -9 dB) 39, strong (≥ -8 dB) 8.

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 RA4ACX 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 RA4ACX

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

LN28 · 37 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,686 km (approx.)

Last such locator decoded

2026-10-22 18:59 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
194230  -9 1114  RA4ACX RL7Z KN98 (x3)
180230 -13 1360  RA4ACX UD8D -12
180230 -14  922  RA4ACX RM5F 73
185915 -21  876  R5AJ RA4ACX LN28
185930  +2 2231  RA4ACX R5AJ -07
185945 -17  876  R5AJ RA4ACX R-04
190000  +6 2231  RA4ACX R5AJ RR73
190015 -20  876  R5AJ RA4ACX 73
190030 -19 2569  RA4ACX R6OD KN87 (x3)
190215 -24 1578  RA4ACX R6DAZ -05 (x2)

UTC    dB Audio  Message
193730  +3  269  RA4ACX RA6OY KN88 (x4)
193930 +16 2634  RA4ACX SP3HUU JO71
194745 +13  642  RA4ACX DJ3HW -19 (x4)
173030  +3 2144  RA4ACX DL1DXX -14 (x2)
183930 -18 2086  RA4ACX SV1ENG KM18 (x2)
184015 -24 2085  SV1ENG RA4ACX RR73
184030 -15 2086  RA4ACX SV1ENG 73

UTC    dB Audio  Message
194445 -16 1750  GU4WRP RA4ACX LN28
194515 -16 2232  II5GG RA4ACX LN28
194600 -20 1206  CT7AIU RA4ACX LN28
194800 -17 1696  YU5DR RA4ACX LN28
194915  -6 1221  EY7BM RA4ACX R-13 (x2)

UTC    dB Audio  Message
133615  -6 2808  RA4ACX 9J2FI -15

UTC    dB Audio  Message
134945  +6  916  RI1FJL RA4ACX LN28 (x4)

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.