F4JZX — reception at SO8OO

Observed FT8 message patterns

Attributed sample

590 messages

Active dates

59 UTC dates

Estimated median S/N

-8.5 dB

Estimated 10th-90th percentile

-17 to 0 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 92, moderate (-15 to -9 dB) 203, strong (≥ -8 dB) 295.

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 F4JZX 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 F4JZX

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

IN94 · 381 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,816 km (approx.)

Last such locator decoded

2026-10-21 04:59 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
204015  -7 1066  BG4UCZ F4JZX IN94 (x8)
045615 -18 1931  F4JZX OS4K -04 (x3)
043530  -6 1042  VA3BOO F4JZX IN94
044330 -16 1043  XE1JVO F4JZX IN94
045915  -8 2497  XE1DEZ F4JZX IN94 (x2)

UTC    dB Audio  Message
212015  -2 2249  RI1FJZ F4JZX R-20 (x2)
062245 -21 1114  LZ936BA F4JZX -03
062300 -14 2218  F4JZX DL/AD2LX R+08
062515 -19 1114  LZ936BA F4JZX IN94
185245  -7 1114  9H6C F4JZX R-09
222345  -4  695  F4JZX TA3GO -05
222400  -5 1114  TA3GO F4JZX R+02
222415  -5  695  F4JZX TA3GO RR73
222430  +3 1114  TA3GO F4JZX 73 (x2)
222515  -3 1165  F4JZX DO3BOX -07
222530  +5 1114  DO3BOX F4JZX R+04
222545  -2 1165  F4JZX DO3BOX RR73
222600 +11 1114  DO3BOX F4JZX 73

UTC    dB Audio  Message
135745 -18 1197  TK4QP F4JZX R+02 (x2)
180600 -10 1197  Z34K F4JZX IN94 (x2)
085815 -10 1200  HB0WR F4JZX IN94 (x3)
090045  -9 1199  DN9SGE F4JZX +19 (x3)
090230 -16 1691  F4JZX IK4TVP +05 (x5)

UTC    dB Audio  Message
020400 -19 1830  F4JZX A41MC RRR
130545 -10 1185  <...> F4JZX IN94 (x3)
130930  -2  453  F4JZX <...> -09
064300  -1 1188  F4NHL F4JZX R-05
064315 -10 1579  F4JZX F4NHL RR73
064330  -6 1188  F4NHL F4JZX 73 (x2)
045400  -6 1187  NL8F F4JZX IN94 (x2)
045800  -7 1187  <...> F4JZX IN94
045915  -4 1187  7Q7CT F4JZX IN94 (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.