UA9UFJ — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

53 messages

Active dates

12 UTC dates

Estimated median S/N

-17 dB

Estimated 10th-90th percentile

-21 to -11 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 22, 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 · 23 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

4,351 km (approx.)

Last such locator decoded

2026-09-10 00:29 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
144400  -8  366  UA9UFJ RO2T 73
145745 -13  934  UA9UFJ RK4CH LO32 (x3)
151345  -6  895  UA9UFJ R2AVL MO95 (x3)
151715  +1 1905  UA9UFJ EW4DX KO23
151845  -5 2908  UA9UFJ RA3TKS -09
152145  +1  279  UA9UFJ R3UG KO98 (x4)
152415 -15 2160  UA9UFJ R6OV KN94 (x2)

UTC    dB Audio  Message
173115 -14 1217  UA9UFJ R6ODC KN87
173115  +0 1123  UA9UFJ TA4SSK KM57
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.