YB7FII — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

252 messages

Active dates

7 UTC dates

Estimated median S/N

-15 dB

Estimated 10th-90th percentile

-20 to -10 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 117, moderate (-15 to -9 dB) 128, strong (≥ -8 dB) 7.

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 YB7FII 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 YB7FII

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

OI49 · 141 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

9,850 km (approx.)

Last such locator decoded

2026-08-30 18:09 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
194630  -2 2546  YB7FII R7OV R-20 (x3)
203100 +12 2547  YB7FII DJ0SO JN57
210130 -12 1606  YB7FII IU2VQQ JN45
141130  -4 2586  YB7FII DL1R JN58 (x8)
170630 -21 1727  YB7FII MW0HID -15
175900 -13 2554  YB7FII F5IYE RR73

UTC    dB Audio  Message
134530  -4 2489  YB7FII RY3D KO95 (x6)
141500 -12  966  YB7FII UG4L LO33 (x4)
142600 -16 2269  YB7FII RV6MX LN08 (x2)
143230  -8  914  YB7FII UG4L LO33 (x3)

UTC    dB Audio  Message
193915 -15 2513  YB7FII IU3VGK -13 (x2)

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.