F4HEX — reception at SO8OO

Observed FT8 message patterns

Attributed sample

319 messages

Active dates

18 UTC dates

Estimated median S/N

-5 dB

Estimated 10th-90th percentile

-17 to +4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 74, strong (≥ -8 dB) 206.

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 F4HEX 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 F4HEX

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

IN96 · 155 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,724 km (approx.)

Last such locator decoded

2026-09-25 14:13 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
125900 -19 1897  F4HEX MS0NYM RR73
125900  -5 1566  F4HEX HA1DW -19 (x3)
131030 +10  521  F4HEX EV1R -16 (x2)
132730 -19 2082  F4HEX 9A/G3VCQ -06
140445 -20 1260  F4HEX DG9SEH JN48
140900  -3  935  F4HEX 9A1CCB -12 (x2)
141315 -22 1118  MM0DHQ F4HEX IN96
141600  -8 1380  F4HEX 9A5M -07 (x2)
142530  +9  985  F4HEX OZ1AXG -02 (x2)

UTC    dB Audio  Message
212015 -14  607  DO4EB F4HEX -06
212030 -24 2257  F4HEX DO4EB R-03
212045 -13  607  DO4EB F4HEX RR73
212130  +8  606  F4HEX YO4NF RR73
212145 -14  606  YO4NF F4HEX 73
212215 -13  606  EW8AAC F4HEX IN96 (x2)
212530 -24  728  F4HEX G8KSH -06 (x2)
212745 -12  556  EH3ST F4HEX IN96 (x2)
212845 -15  556  DG4MDO F4HEX IN96
212915 -15  556  EW2ZC F4HEX IN96
213045 -15  556  EA8BS F4HEX R-13 (x2)

UTC    dB Audio  Message
202445  -4  621  LU1ALF F4HEX IN96
202515  -8 2039  BG7BVI F4HEX IN96
202730  -9 1923  BU2FW F4HEX IN96
202800 -19 1775  JA1LZB F4HEX IN96 (x3)
103300  -5  278  K2TQC F4HEX IN96 (x2)
071530  +8 1493  VK3JMA F4HEX IN96 (x3)
071700  +9  369  HC2GRC F4HEX IN96 (x4)

UTC    dB Audio  Message
072145 -10  830  YO9HP F4HEX R+02 (x2)
072245 -11 2317  CQ F4HEX IN96 (x3)
072445  -5 2317  SP9UPH F4HEX +28
095330  -7  619  LZ4VR F4HEX -20
095430  -9  619  DO7DK F4HEX 73
095600 -11  619  LZ4VR F4HEX -18
095730  -7  619  UA4FKT F4HEX -06
095930 -13  620  RA9ACA F4HEX R-11
100230 -13  620  RA9FEL F4HEX 73
100300 -12  619  DN9TB F4HEX +03 (x2)
110100 -20 1873  YB5NHD F4HEX R-09

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.