RA0SCA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

2,769 messages

Active dates

72 UTC dates

Estimated median S/N

-9 dB

Estimated 10th-90th percentile

-18 to +2 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 473, moderate (-15 to -9 dB) 1,015, strong (≥ -8 dB) 1,281.

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 RA0SCA 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 RA0SCA

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

OO06 · 2,170 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

5,025 km (approx.)

Last such locator decoded

2026-09-08 16:23 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
162515 -24 1647  RA0SCA R8CIS -05
175345  -7  752  RA0SCA R6ZEJ KN98 (x3)
175745 -15 1631  RA0SCA OH6NEQ KP21 (x3)
183015  +3 1762  RA0SCA RA4Y LO35 (x2)
183215  +5 1955  RA0SCA RA3RFT -18 (x2)
183915 +21 2707  RA0SCA YO5QDI KN17 (x2)
185345 +12 2303  RA0SCA RA3PDL KO85 (x2)

UTC    dB Audio  Message
225045 -17 1590  RA0SCA CT7ARQ R-17
225100  -8  655  CT7ARQ RA0SCA RR73
225115 -17 1590  RA0SCA CT7ARQ 73
064800  -3 1843  RA0SCA DL9KM JN68 (x7)
231030 -22 2118  PP5CG RA0SCA OO06
000930  +2  854  RA0SCA F1IQH JN27
000945 -18  853  CQ RA0SCA OO06                        a1
001000  +1  854  RA0SCA F1IQH JN27 (x2)

UTC    dB Audio  Message
223345 -16 1015  RA0SCA IW9CTR JM77
175500 -10 1796  RA0SCA RZ6CO LN04
181630 -12 2543  R0AGX RA0SCA OO06
191615  +2 2410  RA0SCA SV2AEL KN10 (x9)
180915  -8  609  RA0SCA UA6CER KN94 (x3)

UTC    dB Audio  Message
070600 -11 2035  RA0SCA PD1ADA JO21
070615 -18 2610  BH1CQZ RA0SCA -13
070700  -5 2036  RA0SCA PD1ADA JO21 (x2)
070730  +1 2609  RA0SCA M9SDD IO83
070800 -16 2035  RA0SCA PD1ADA JO21
070800  +1 2609  RA0SCA M9SDD IO83 (x4)
070945 -15 2628  MI7XHT RA0SCA OO06
071000  +2 2609  RA0SCA M9SDD IO83
071015 -12 2628  CQ RA0SCA OO06
071045 -14 2628  MI7XHT RA0SCA R-18
071100 -14 2583  RA0SCA MI7XHT RR73

UTC    dB Audio  Message
092600 -11 1672  RA0SCA F4FSY -22 (x2)
093700  +3 2351  RA0SCA S59MA JN76 (x5)
094630 -10 1672  RA0SCA F4FSY -14 (x2)
101730  -8  744  RA0SCA EA3CUU JN12
091830  +3  647  RA0SCA IU1JFI JN35 (x2)
083900 -12 1192  RA0SCA HA8DX KN07 (x2)
084830 -24 1631  RA0SCA IZ8XJJ R-22

UTC    dB Audio  Message
192200  +2 1281  RA0SCA SP3PLD JO72

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.