A61FJ — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,711 messages

Active dates

19 UTC dates

Estimated median S/N

-17 dB

Estimated 10th-90th percentile

-23 to -8 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 980, moderate (-15 to -9 dB) 542, strong (≥ -8 dB) 189.

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 A61FJ 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 A61FJ

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

LL74 · 1,098 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

4,020 km (approx.)

Last such locator decoded

2026-09-09 19:30 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
192815  -5  636  A61FJ EA1ISQ IN73
193000 -19 1520  CQ A61FJ LL74 (x2)
182315  +4 1147  A61FJ YO4FZV KN44 (x2)
182345 -13 1619  A61FJ 9A3SO 73
182415  +2 1328  A61FJ YO4FZV R-20 (x2)
183515 -10 1621  A61FJ R3ZBH KO81
183945  -4 1535  A61FJ SP6AFL JO81 (x3)
184215  +0 1617  A61FJ UZ5CA -10 (x2)
184615 -16 1637  A61FJ PD7FS JO21

UTC    dB Audio  Message
164015 +19 2853  A61FJ OM2ZZ JN88 (x2)

UTC    dB Audio  Message
105830 -24 1611  CQ A61FJ LL74 (x3)
110000 -21 1611  S59MA A61FJ -13
110400 -23 1610  DO7BE A61FJ -12
110630 -24 1611  CQ A61FJ LL74                         a1
110830 -24 1610  JR1JUR A61FJ RR73
111900 -24 1611  CQ A61FJ LL74
113430 -24 1611  YC2CEK A61FJ RR73
113500 -20 1611  DO7BE A61FJ -17
113630 -21 1610  CQ A61FJ LL74
113800 -24 1610  YC2ALF A61FJ R-11
113830 -20 1610  JA0FMU A61FJ R-02
114130 -24 1610  SP3UCN A61FJ RR73
120630 -24 1609  CQ A61FJ LL74

UTC    dB Audio  Message
192000 -12 2163  A61FJ K1WY FN31 (x2)
192300 -18 2165  CQ A61FJ LL74 (x2)
192615 -14 2165  A61FJ IW2NBW JN45 (x2)
192800 -17 2165  CQ A61FJ LL74 (x4)
194800  -6 2164  EA7GHD A61FJ -12
194900  -6 2164  CQ A61FJ LL74 (x2)
195000  -9 2164  TA4WH A61FJ R-15
195030 -11 2164  CQ A61FJ LL74

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.