R9WCH — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

24 messages

Active dates

3 UTC dates

Estimated median S/N

-15 dB

Estimated 10th-90th percentile

-23 to -13 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 1.

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 R9WCH 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 R9WCH

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

LO84 · 14 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,425 km (approx.)

Last such locator decoded

2026-09-14 19:10 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
190800  -7 2008  R9WCH SV1ENG KM18
191045 -15 1003  SV9QWC R9WCH LO84
191245  +0 1050  R9WCH DJ0MAB JN49 (x3)
191745 -20 1574  R1BDX R9WCH RRR
191915  +2  614  R9WCH R2PU -06 (x2)
134500  +3 2779  R9WCH R2SN RR73
135015  -8 1982  R9WCH R6FMK LN05 (x2)
135145 -10 1078  R9WCH UA3SCU +10 (x2)
135415 -16 2146  R9WCH RN3TT -02 (x2)

UTC    dB Audio  Message
120400 -10  805  R9WCH EA3HMM JN00 (x2)
135330  -4  750  R9WCH UA3NFG 73
122145  -6  377  R9WCH EW1MN R-06 (x2)

UTC    dB Audio  Message
135415  -8  771  R9WCH R3DEE R-12

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.