IU1MIH — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

93 messages

Active dates

19 UTC dates

Estimated median S/N

-13 dB

Estimated 10th-90th percentile

-20 to -7 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 45, strong (≥ -8 dB) 15.

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 IU1MIH 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 IU1MIH

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 · 65 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,137 km (approx.)

Last such locator decoded

2026-09-20 01:10 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
050700 -20 2320  KA9FOX IU1MIH 73
001800  -4 1715  IU1MIH EX7CQ -18 (x2)
134030  -1 1220  IU1MIH HA1BF -14 (x2)
010230  -6 2288  KF8DZL IU1MIH JN44 (x2)
010430  -7 1446  N4GBK IU1MIH JN44 (x4)
010900  -7 1561  KF9UG IU1MIH JN44 (x4)

UTC    dB Audio  Message
100215  -9 1816  GM0VGI IU1MIH R-09 (x2)
162715 -11 2650  N1NK IU1MIH J (x3)
095145 -24 1897  D2UY IU1MIH J

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.