UB0SMX/P — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

898 messages

Active dates

25 UTC dates

Estimated median S/N

-10.2 dB

Estimated 10th-90th percentile

-18 to -1.4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 174, moderate (-15 to -9 dB) 392, strong (≥ -8 dB) 332.

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 UB0SMX/P 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 UB0SMX/P

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

OO16 · 361 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

5,134 km (approx.)

Last such locator decoded

2026-08-30 21:31 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
223200 +12 2558  UB0SMX/P YO6LM KN25 (x4)
224630  -1  618  UB0SMX/P RW9AW MO05 (x3)
000730  -9 1767  UB0SMX/P IU5TUD +03 (x2)
002030  -1  363  UB0SMX/P RN6HK LN14 (x3)
012345 -11 1431  UB0SMX/P ON1JP -24 (x2)
012445  -6 1431  SX48JM UB0SMX/P RR73

UTC    dB Audio  Message
174245  -2 1804  UB0SMX/P SP5SJL KO02 (x5)
180700  -1 1347  UB0SMX/P DH0GBC -13
181245  +6 2268  943AWC UB0SMX/P RR73 (x2)
184245  -4 1800  UB0SMX/P YL3KZ KO16 (x2)
184715  -4 2269  UB0SMX/P PA3EWP JO21
184730 -24 1945  UB0SMX/P HB9ZHK JN47
184745  +3 2269  UB0SMX/P PA3EWP R-05 (x3)

UTC    dB Audio  Message
064915 +20  472  UB0SMX/P I3QDK JN65
065515  +5  473  UB0SMX/P DH2RL JN68 (x4)
070545 +16  472  UB0SMX/P I3QDK JN65 (x5)
072145  -6 2947  UB0SMX/P VK4FFF -09
134615  +6 2631  UB0SMX/P RG8G LO87 (x4)

UTC    dB Audio  Message
120215  -2  248  UB0SMX/P I1RJP JN45 (x4)
122945  -2  737  UB0SMX/P DL1DXX -20

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.