G4YOH — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

93 messages

Active dates

2 UTC dates

Estimated median S/N

-4 dB

Estimated 10th-90th percentile

-14 to +3 dB

Recurring-pattern threshold

Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 66.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with G4YOH 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 G4YOH

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

IO80 · 54 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,757 km (approx.)

Last such locator decoded

2026-08-31 19:03 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
190300 -14  488  <...> G4YOH IO80

UTC    dB Audio  Message
175700  -5  725  G4YOH DK1XAM -05 (x2)
180330  +3 1184  G4YOH SP4NKJ -05 (x2)
180500  +1 1491  G4YOH SP9UPH JO90 (x3)
180645  -1 1839  G4YOH OM7AQV -11

UTC    dB Audio  Message
201400  +2  560  SV2ROG G4YOH 73
201745  +5  590  8Z1IT G4YOH IO80
201900  -5 2012  G4YOH F5RRS JN36 (x2)
201945  +3  591  IS0YHV G4YOH IO80
202000  -2 2012  G4YOH F5RRS JN36
202015  -2  590  IS0YHV G4YOH IO80
202030  -4 2013  G4YOH F5RRS JN36 (x2)
202245  +4  591  IS0YHV G4YOH IO80 (x3)
202415  +8  591  AA3B G4YOH IO80
202700  -5  591  HS0ZOY G4YOH R-05 (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.