OZ1CJT — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

183 messages

Active dates

17 UTC dates

Estimated median S/N

-10 dB

Estimated 10th-90th percentile

-21 to -1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 60, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 86.

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 OZ1CJT 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 OZ1CJT

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

JO66 · 89 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

934 km (approx.)

Last such locator decoded

2026-08-07 13:02 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
060945 -17 1833  OZ1CJT EA5HM 73
061315  -8 1973  OZ1CJT UA4FKT LO23 (x4)
061445 -21 1765  OZ1CJT F4HSB JN37
061715 -23 1455  OZ1CJT M9KJY -02
130130 -15 1972  JY5JA OZ1CJT JO66 (x2)
172745 -19 1977  OZ1CJT UT4QM KN77
125415  +9  624  OZ1CJT F4HTA -05 (x2)
130830  -5 1050  OZ1CJT ON3CCM -05
131015  -3 1972  EA1IQM OZ1CJT R+04
131630  +1 1748  OZ1CJT F1PDX RR73

UTC    dB Audio  Message
143245  +2 2540  OZ1CJT F4GHN +09
143300  +2 1982  F4GHN OZ1CJT R+16
143315  +7 2539  OZ1CJT F4GHN RR73
143330  -1 1982  F4GHN OZ1CJT 73
143800  -8 2539  OZ1CJT SV1CQN -05 (x2)
143845  -5 1983  SV1CQN OZ1CJT 73
143945 -10 1983  IU0VOG OZ1CJT -12
144130 -13 1983  TK5K OZ1CJT JO66 (x2)
144345  -7 1792  OZ1CJT DK8EE JO41 (x2)
144430 -12 1983  DL9KM OZ1CJT RRR
144545 -12 1792  OZ1CJT DK8EE JO41
145115 -16 2001  OZ1CJT LX1RFJ RR73

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.