I1YTO — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

671 messages

Active dates

42 UTC dates

Estimated median S/N

-4.8 dB

Estimated 10th-90th percentile

-15 to +3 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 61, moderate (-15 to -9 dB) 100, strong (≥ -8 dB) 510.

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 I1YTO 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 I1YTO

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

JN44 · 584 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,137 km (approx.)

Last such locator decoded

2026-09-11 16:05 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
192445  -9  955  II0CDS I1YTO R-14 (x2)
200000  -8 2993  HS0ZKB I1YTO JN44 (x3)
125300  -8 1370  I1YTO DM9YL -18 (x2)
094645  -4 2993  IQ2AAH I1YTO JN44 (x2)
100000 -15 1155  I1YTO IQ2AAH -14 (x2)
100130  -9 1693  I1YTO UT4PA KO20 (x2)
160445  -8 2992  8Q7PR I1YTO JN44 (x2)

UTC    dB Audio  Message
194430  -7 2986  ES8JX I1YTO JN44
194515  +3  857  I1YTO ES8JX -12 (x2)
195015  -2 1449  I1YTO 9A4ZM JN86 (x4)
200545 -16 1647  I1YTO EA6LU -12

UTC    dB Audio  Message
202030 -20 2047  HI8L I1YTO JN44 (x2)
202130 -16 2047  LU3MC I1YTO R-12
202530 -19 2047  CE3RKW I1YTO R-06
202645 -20 2047  HC7AE I1YTO JN44 (x4)
203100 -15 2047  ZL2NU I1YTO JN44 (x6)
100515  -7 3047  D44TWO I1YTO JN44

UTC    dB Audio  Message
194900 -11 2956  <...> I1YTO JN44 (x3)
195045  -7 1101  I1YTO DB100FT -15
195100 -15 1101  DB100FT I1YTO R-13
195415  -9 2956  EW8AAC I1YTO JN44 (x3)

UTC    dB Audio  Message
113045  -5 3032  HB9HRR I1YTO JN44 (x6)

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.