IV3IRO — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,609 messages

Active dates

46 UTC dates

Estimated median S/N

+6 dB

Estimated 10th-90th percentile

-6 to +16 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 74, strong (≥ -8 dB) 1,527.

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 IV3IRO 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 IV3IRO

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 · 1,455 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

821 km (approx.)

Last such locator decoded

2026-09-20 01:41 UTC

Other locator fields attributed to this token: JN66 (3).

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
013330 +13 2643  V51PJ IV3IRO JN65 (x15)

UTC    dB Audio  Message
231715 -12 2241  CQ IV3IRO JN65
231730 +19 2696  IV3IRO UA3ZUX KO90
231730 -23 1579  IV3IRO DF4FS JN48
213845  -2 2716  RI1FJZ IV3IRO JN66 (x5)
195815  -7 2615  EX7CQ IV3IRO JN65 (x2)
195915 -12 2615  IU5HIU IV3IRO -14
200115  -4 2615  EX7CQ IV3IRO JN65 (x4)

UTC    dB Audio  Message
054915  +4 2914  SP100PKP IV3IRO JN65 (x5)
055145  +5 2914  <VP5/K5UR> IV3IRO JN65 (x3)
051330 +16 2774  V51PJ IV3IRO JN65 (x7)

UTC    dB Audio  Message
045530  +3 2380  KJ7WLL IV3IRO JN65 (x4)
045930  +8 2489  AC9HP IV3IRO JN65 (x8)
050430  +7 2489  ZR1ADJ IV3IRO JN65 (x3)

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.