RA4FHO — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,461 messages

Active dates

24 UTC dates

Estimated median S/N

0 dB

Estimated 10th-90th percentile

-9.6 to +9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 167, strong (≥ -8 dB) 1,273.

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 RA4FHO 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 RA4FHO

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

LO13 · 507 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,507 km (approx.)

Last such locator decoded

2026-09-11 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
160415  +1 2884  YL3FW RA4FHO -12
182000 -12 2805  RK4HS RA4FHO -14
182100  -9 2805  RL2F RA4FHO -14 (x2)
182230  -9 2805  R1OBH RA4FHO -11
185445  -8 2820  IU1DXU RA4FHO -13
185800  -5 2819  R2BIN RA4FHO -16
190100 -11 2819  CQ RA4FHO LO13
190130  -7 2819  BG0FQU RA4FHO R-06 (x2)
190300  -7 2819  CQ RA4FHO LO13 (x2)
190430  -8 2819  JK1KDD RA4FHO RR73
190630  -6 2819  BA7IWL RA4FHO -11 (x2)

UTC    dB Audio  Message
194800  -1  950  RA4FHO DL6UM JO60
194815  +3 2893  YO4NF RA4FHO 73
194845  +5 2893  DL6UM RA4FHO -15 (x2)
195015  +5 2893  CQ RA4FHO LO13 (x11)

UTC    dB Audio  Message
182415  -7 1995  RA4FHO UA3ZSI R-14 (x2)
183200 -11 1352  RA4FHO R2SN R-21 (x3)
181415  -3  752  RA4FHO RA7T -11 (x2)
181945  -3 1712  RA4FHO R5BS KO85 (x3)
174745  +6 2194  RA4FHO UA3QNA -19
174800  -7 2624  UA3QNA RA4FHO R+00
174845  -4  796  RA4FHO UA6HJT LN14
174930  -8 2623  UA9LLE RA4FHO -23 (x2)

UTC    dB Audio  Message
171415  -8 3039  TJ1GD/P RA4FHO -13 (x2)
171645  -8 3039  BG7BMG RA4FHO 73
171730  -2 2852  RA4FHO R9DZ LO98 (x2)
172100  -6 3028  RA4FHO R6DJR RR73 (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.