RT8T — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

58 messages

Active dates

6 UTC dates

Estimated median S/N

-17 dB

Estimated 10th-90th percentile

-23 to -11 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 36, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 0.

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 RT8T 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 RT8T

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

LO71 · 21 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,324 km (approx.)

Last such locator decoded

2026-09-18 02:45 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
023800  +9 1703  RT8T UA4FKT R-18 (x2)
023900 -18 2176  RT8T MI7XHT IO64 (x2)
024400 -24 2120  RT8T R4FDW -08
024515 -24 1692  CQ RT8T LO71
024545 -24 1691  R9CS RT8T -01
030230 -22 1835  RT8T RK4CH LO32 (x5)
115900 -15 1122  RT8T OH3MB KP20 (x2)
120630 -16 1436  RT8T RU6K -06

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.