F4HXJ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

849 messages

Active dates

20 UTC dates

Estimated median S/N

-4 dB

Estimated 10th-90th percentile

-10 to +3 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 134, strong (≥ -8 dB) 699.

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 F4HXJ 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 F4HXJ

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

IN87 · 718 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,830 km (approx.)

Last such locator decoded

2026-10-27 20:00 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
060215  -5 2997  K5WVF F4HXJ IN87
060345  -7 2997  KE9EUT F4HXJ IN87
060415  -7 2997  KE9END F4HXJ IN87 (x2)
061030  -7 2997  CM7DJG F4HXJ IN87
061330  -7 2997  3V8HP F4HXJ IN87
145915 -14 1237  F4HXJ DC2SF/P -19 (x2)
195145  -4 2951  9H4JX F4HXJ IN87 (x2)
195245  -1 2952  EX7CQ F4HXJ IN87
195345  -3 2952  9H4JX F4HXJ IN87
195600  +0 2952  F5OYA/P F4HXJ R-13 (x2)
200000  +5 2952  R1NBC F4HXJ IN87

UTC    dB Audio  Message
203300  -6 2992  <...> F4HXJ IN87
203845 -11 2992  UD6AWH F4HXJ IN87
204630  -7 2992  GE7RTI F4HXJ IN87
204645  -8  426  F4HXJ GE7RTI +00
204700  -6 2992  GE7RTI F4HXJ R+00
204715  -9  426  F4HXJ GE7RTI RR73
204730  -7 2992  GE7RTI F4HXJ 73
052445  -2 2992  KT4ZG F4HXJ R-07
053045  -6 2993  TI4LAS F4HXJ 73
053200  -7 1816  F4HXJ IK4CBO JN54
185630  -1 2462  F4HXJ OI7AX -08 (x2)
190700  -7 2992  <DL50IPARC> F4HXJ IN87
191000  -5 2992  LB9VH F4HXJ IN87
192115  -5  535  F4HXJ 9A60CBM -13

UTC    dB Audio  Message
211000 -12 1816  F4HXJ NF3R 73
211245  -7 2988  XU7O F4HXJ IN87 (x3)
211400 -11  484  F4HXJ XU7O RR73
211415 -10 2988  XU7O F4HXJ 73
201445  -4 2210  KB9ELS F4HXJ IN87
201515  -8 2210  K1HC F4HXJ IN87
201530  +3 2328  F4HXJ K1HC -17
201545  +0 2209  K1HC F4HXJ R-08
201600  +4 2328  F4HXJ K1HC RR73
201615  +0 2209  K1HC F4HXJ 73
203700  -1 2210  N2JFD F4HXJ IN87 (x3)

UTC    dB Audio  Message
134130 -17 1494  F4HXJ DN9AD JO52

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.