OM1II — reception at SO8OO

Observed FT8 message patterns

Attributed sample

3,445 messages

Active dates

45 UTC dates

Estimated median S/N

+8 dB

Estimated 10th-90th percentile

-0.8 to +15 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 46, moderate (-15 to -9 dB) 79, strong (≥ -8 dB) 3,320.

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 OM1II 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 OM1II

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

JN88 · 2,460 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

383 km (approx.)

Last such locator decoded

2026-09-27 17:00 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
165415 +21 2601  R70SAB OM1II JN88
165615 +18 2601  CQ DX OM1II JN88 (x10)
170145 +10 2601  R3TKF OM1II -14 (x4)

UTC    dB Audio  Message
050330 -21 1829  6Y5HN OM1II JN88 (x15)

UTC    dB Audio  Message
180715 +11 2488  RI1FJL OM1II JN88 (x6)

UTC    dB Audio  Message
173345 -11 2635  OM1II SV2AJX 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.