UA9UFJ — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

65 messages

Active dates

15 UTC dates

Estimated median S/N

-16 dB

Estimated 10th-90th percentile

-21 to -11 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 37, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 0.

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 UA9UFJ 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 UA9UFJ

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

NO33 · 29 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

4,351 km (approx.)

Last such locator decoded

2026-09-21 15:17 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
151245  +6  767  UA9UFJ YO9HP -06 (x2)
151415  -4  877  UA9UFJ RA6OD KN97 (x2)
151445  -9 2693  UA9UFJ R2ASV RR73
151500 -16  846  RA6OD UA9UFJ R-02
151545  +0 2693  UA9UFJ R2ASV RR73
151645 +13 2614  UA9UFJ YO4NT -07
151700 -20  846  YB1KXV UA9UFJ NO33
152145 -15 2391  UA9UFJ R4UAS KO85 (x3)
152615  -5 1907  UA9UFJ DK7ZT -19
152645  +2  742  UA9UFJ OH3MB KP20
152645  -4 1906  UA9UFJ DK7ZT -19

UTC    dB Audio  Message
173115  +0 1123  UA9UFJ TA4SSK KM57
173115 -14 1217  UA9UFJ R6ODC KN87
173130 -12 1217  TA4SSK UA9UFJ -09
173145 -13 1218  UA9UFJ R6ODC KN87
173215  -6 1123  UA9UFJ TA4SSK R-16 (x4)
045545 -13  809  CQ UA9UFJ NO33
045600 +11  809  UA9UFJ UA4FEN -11
045615 -14  810  UA4FEN UA9UFJ R-09
045630 +13  809  UA9UFJ UA4FEN RR73
045645 -11  810  UA4FEN UA9UFJ 73
045745 -13  810  R1CF UA9UFJ RR73
050515 -15  813  UB0SCV UA9UFJ -14

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.