RK3YWA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

3,579 messages

Active dates

14 UTC dates

Estimated median S/N

-7.1 dB

Estimated 10th-90th percentile

-15.9 to -1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 364, moderate (-15 to -9 dB) 1,162, strong (≥ -8 dB) 2,053.

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 RK3YWA 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 RK3YWA

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

KO73 · 1,644 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

990 km (approx.)

Last such locator decoded

2026-09-19 03:06 UTC

Other locator fields attributed to this token: KO63 (6).

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
025330 -23 2459  RK3YWA DO5PY JN49
025545 -15 2459  DO5PY RK3YWA -18 (x2)
025815  -9 2458  R2EA/P RK3YWA KO73
025830  -4 2060  RK3YWA R2EA/P -13
025845  -5 2458  R2EA/P RK3YWA R+09
025900  -4 2059  RK3YWA R2EA/P RR73
025915  -3 2458  R2EA/P RK3YWA 73
025945  -6 2458  CQ RK3YWA KO73
030015  -9 2458  EW8AAC RK3YWA KO73 (x2)
030245  +0 2458  R4FDK RK3YWA KO73 (x4)

UTC    dB Audio  Message
193430  -3 1785  RK3YWA RU3XK R-14 (x2)
193515 -24 1883  RU3XK RK3YWA 73
193545 -24 1883  CQ RK3YWA KO73
193800  +7  876  RK3YWA UA3LID KO64
193830 -16 1914  RK3YWA RK4F -14
193900  +4  876  RK3YWA UA3LID KO64
193900 -14 1914  RK3YWA RK4F -22 (x2)
023900 +18 2451  RK3YWA HA7TM KN07 (x4)
024045 -17 2451  CQ RK3YWA KO73 (x2)

UTC    dB Audio  Message
165630  +0 2434  RK3YWA R2DP KO95 (x4)
170200 -10 2434  RK3YWA RM6ZG KN98 (x2)
170430 -10 1031  RK3YWA UB2FEK R-04 (x3)
170845  -2 2434  CQ RK3YWA KO73 (x4)
171100  -8 1256  RK3YWA DL2EMS JO31
171115 -10 2434  CQ RK3YWA KO73

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.