RA3M — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,167 messages

Active dates

47 UTC dates

Estimated median S/N

-8 dB

Estimated 10th-90th percentile

-18 to +1.1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 195, moderate (-15 to -9 dB) 340, strong (≥ -8 dB) 632.

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 RA3M 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 RA3M

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

KO97 · 327 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,404 km (approx.)

Last such locator decoded

2026-09-07 18:13 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
180445 -12 2153  RA3M EA3A JN01
180500  -5 1371  EA3A RA3M -12
180515 -18 2153  RA3M EA3A R-16
180530  -6 1371  EA3A RA3M RR73
180545 -14 2154  RA3M EA3A 73
180600  -4 1371  CQ RA3M KO97 (x2)
180815 -12 2377  RA3M RA4P R-04 (x2)
180945  +2 1857  RK3YWA RA3M -08 (x4)
181330  -8 1382  SP100PKP RA3M KO97
181430  -3  770  EM70WWW RA3M -14

UTC    dB Audio  Message
164745 -11 1921  RA6ZK RA3M -11 (x4)
164930 -19 2079  RA3M RA6ZK 73
165230  -2 1312  RW4LN/P RA3M -14 (x3)
192430  -6 2180  RA3M RK3YWA R+02
192645  -4 2379  <R73SLET> RA3M +00 (x3)
193345  -1 2379  RT1L RA3M -08 (x3)

UTC    dB Audio  Message
193215 -15 1311  RA3M R3ZMM 73
194445 -12 1015  RD0L RA3M -15 (x2)
194730 -10 2709  RA3M EA3BIC JN11 (x4)
160900  +9 2483  UA6XDA RA3M -14 (x4)
132715 -10 2782  R4UBH RA3M -02 (x4)

UTC    dB Audio  Message
084745 -20 1375  RA3M OZ5AGJ JO47
091845 -16 2471  R8CCJ RA3M -07
175100 -22 1973  HA3GX RA3M RR73
175130 -20 1974  SP6FME RA3M -03
175445  -8 2567  RA3M RC6OX 73
181615  -2  490  RA3M IK4LZH JN54 (x2)
181700 -20 1063  HG1DRC RA3M RR73
181715  -9  490  RA3M IK4LZH JN54 (x3)
182515 -21 2082  UA9C RA3M -09
182730 -14  781  RA3M RC6OZ R+01 (x3)

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.