RK4FV — reception at SO8OO

Observed FT8 message patterns

Attributed sample

252 messages

Active dates

13 UTC dates

Estimated median S/N

-8 dB

Estimated 10th-90th percentile

-18 to +3 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 80, strong (≥ -8 dB) 133.

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 RK4FV 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 RK4FV

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

LO22 · 157 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,634 km (approx.)

Last such locator decoded

2026-10-19 19:46 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
212630 -13 1800  JH0INP RK4FV R-12
002645  -1  868  HI3RRR RK4FV LO22 (x2)
002815  -3 2286  N1NRL RK4FV LO22
003330  -5  795  KF9JF RK4FV LO22 (x2)
003500  -2 1146  9Y4DG RK4FV LO22 (x3)
004000  -4  739  WY5I RK4FV LO22 (x3)
194245 -17 1831  BA7IWL RK4FV LO22
194630 -12  653  7Z1BH RK4FV LO22
195030 -15 2341  RK4FV JE1FQV RR73

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.