IV3IOU — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

743 messages

Active dates

19 UTC dates

Estimated median S/N

+0.2 dB

Estimated 10th-90th percentile

-10 to +9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 84, strong (≥ -8 dB) 645.

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 IV3IOU 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 IV3IOU

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

JN65 · 540 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

821 km (approx.)

Last such locator decoded

2026-09-20 17:48 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
173945  +4  875  II9IAGM IV3IOU R+23 (x3)
174200 +16 1880  IV3IOU US7KC KO21 (x2)
174315 -17  875  <II8IHBC> IV3IOU JN65 (x10)

UTC    dB Audio  Message
144515  +2  910  II4IANT IV3IOU JN65 (x5)
144715 -17 2109  IV3IOU II4IANT +00
144730  +2  910  II4IANT IV3IOU R+08
145330  -8 2206  IV3IOU II6IALU +04 (x4)
171815  +9  909  R3RRC/P IV3IOU JN65 (x4)

UTC    dB Audio  Message
185400 -14  876  IV3IOU II0IHMG -20
185830 -17 1533  IV3IOU II8IHBC -16

UTC    dB Audio  Message
081130  -5  962  IV3IOU IQ9BF -13 (x6)

UTC    dB Audio  Message
053845 -12  946  IQ9BF IV3IOU 73

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.