R5RC — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

527 messages

Active dates

25 UTC dates

Estimated median S/N

-1 dB

Estimated 10th-90th percentile

-10 to +13 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 454.

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 R5RC 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 R5RC

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

LO02 · 249 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,363 km (approx.)

Last such locator decoded

2026-10-03 17:02 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
165700  -4 2801  UB8FDN R5RC LO02 (x5)
170030  +1 2801  <...> R5RC LO02
170100  -3 2801  <R8AIM/M> R5RC LO02 (x7)
171445  -2 2695  <RO2E/P> R5RC -22 (x2)

UTC    dB Audio  Message
201315  -1 1083  RI1FJZ R5RC R-15 (x6)
042600 -10 1759  UA6Q/M R5RC LO02
042715  -1  945  R5RC UA6Q/M -13
042730  +1 1003  HF100PKP R5RC R-12
042830  +2 1003  RO3ZR R5RC -03
042845 -12 2608  R5RC RO3ZR R+11
042900  -7 1003  RO3ZR R5RC RR73
042915 -13 2608  R5RC RO3ZR 73
141745 -11 1532  RO2E/P R5RC R-18 (x2)

UTC    dB Audio  Message
055845  -9  831  JA3FQO R5RC RR73
055900 -10  831  R5RC R2ZC KO81
055945 -13  831  R2ZC R5RC -15
060045  -6  831  CQ R5RC LO02
060115 -10  831  R9FGF R5RC -03 (x2)
060245 -12  831  R9SS R5RC LO02 (x4)
205315 -15 2389  J88IH R5RC R-26
142145 -16 1861  VP8ADR R5RC LO02 (x2)
142445 -24 1862  OK2BRD R5RC RR73
142715 -24 1633  CE2EC R5RC LO02

UTC    dB Audio  Message
154330  +1 1780  RA9YJU R5RC LO02 (x5)
154600  +1 1780  BG5JKZ R5RC -15
154630  +5 1780  BD7OH R5RC R-15
204800  -7 3044  TF8SM R5RC LO02 (x2)
204845  -4  898  R5RC TF8SM -1
204900 -10 3045  TF8SM R5RC LO02
204915  -2  898  R5RC TF8SM -1
204930  -3 3044  TF8SM R5RC LO02 (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.