I4KYO — reception at SO8OO

Observed FT8 message patterns

Attributed sample

595 messages

Active dates

56 UTC dates

Estimated median S/N

-9.2 dB

Estimated 10th-90th percentile

-17.1 to +2.1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 99, moderate (-15 to -9 dB) 224, strong (≥ -8 dB) 272.

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 I4KYO 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 I4KYO

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

JN54 · 72 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,013 km (approx.)

Last such locator decoded

2026-10-30 06:18 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
111845 -13 1653  YG2AUD I4KYO -10 (x3)
101715  -9 2209  I4KYO CN8WK RR73 (x2)
113030 -23 1440  ZZ5UNO I4KYO R-03 (x3)
113230 -15 1440  TA3KAN I4KYO -09
131300  -9  745  W1NB I4KYO R+06 (x5)
110845 -16 1295  I4KYO FR5ZE RR73

UTC    dB Audio  Message
061815  +2  817  6W/IK2HKT I4KYO JN54 (x3)

UTC    dB Audio  Message
062445  -9 2064  OA4ENG I4KYO R-21 (x5)
062745  -3  842  P4/WE9V I4KYO JN54 (x4)
063445  -1 2552  W1AW/9 I4KYO R-25
063545  +4  454  M9PAS I4KYO +07 (x2)
063745  +5  456  F4BJN I4KYO RR73
063915  +1  456  IU8UHK I4KYO -22 (x2)

UTC    dB Audio  Message
220145 -18 1221  I4KYO OK9DMR JO70
220200  +1 1984  I4KYO F5RRS JN36
220215 -19 1220  I4KYO OK9DMR JO70
220230  +6 1221  OK9DMR I4KYO -19
220230  +7 1984  I4KYO F5RRS JN36
220245 -22 1220  I4KYO OK9DMR R-05
220300  +7 1221  OK9DMR I4KYO RR73
220315 -16 1221  I4KYO OK9DMR 73
181215  -2 1403  OM2WQ I4KYO JN54
181230  +7 1403  I4KYO OM2WQ -13
181245  +0 1403  OM2WQ I4KYO R-03
181300 +18 1403  I4KYO OM2WQ RRR
181315  +3 1403  OM2WQ I4KYO 73
181330 -11 1404  I4KYO UA4FKT LO23 (x2)

UTC    dB Audio  Message
104945 -23 1636  I4KYO PD4FL JO33
054745  -2 1779  HP1RY I4KYO -12
060630  -8 1750  IS0AFM I4KYO -12 (x3)
061800 -12 2105  II7MGBT I4KYO R-05 (x2)
062900  +5  618  K4A I4KYO R-15 (x2)
063015 -13  618  I4KYO K4A RR73
063030  -2  618  K4A I4KYO 73
060600 -17  979  VK4XK I4KYO JN54 (x2)
061100 -13 2133  VK3JV I4KYO R-18
060715  -6 1418  I4KYO LZ6C 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.