R9WCH — reception at SO8OO

Observed FT8 message patterns

Attributed sample

28 messages

Active dates

4 UTC dates

Estimated median S/N

-15 dB

Estimated 10th-90th percentile

-23 to -10 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 2.

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 · 15 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,425 km (approx.)

Last such locator decoded

2026-10-24 08:43 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
154200  -5 1216  R9WCH OM5ALL JN97 (x2)
155215  -3 2569  R9WCH R6ML 73
155315 -11 2105  R9WCH RU3OH KO90 (x2)
153415 -11  288  R9WCH R2OM RR73
171300  +5 2717  R9WCH OK1FRG JN79
171330  -8  732  R9WCH TC8TR KM69
171330 -16 1493  R9WCH SV5BYP -16
171330  +7 2717  R9WCH OK1FRG JN79
171400 -14 1493  R9WCH SV5BYP -16 (x2)
171530 -14  732  R9WCH TC8TR KM69 (x3)

UTC    dB Audio  Message
084145 -10 2611  SM7OYP R9WCH 73
084315  -2 2611  CQ R9WCH LO84
084415 -13 2611  DA6CH R9WCH RRR
090415 -14 2451  SQ5PTZ R9WCH 73

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.