DO8JB — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

6,874 messages

Active dates

26 UTC dates

Estimated median S/N

-4.2 dB

Estimated 10th-90th percentile

-14 to +5 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 477, moderate (-15 to -9 dB) 1,439, strong (≥ -8 dB) 4,958.

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 DO8JB 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 DO8JB

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

JO32 · 5,597 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,067 km (approx.)

Last such locator decoded

2026-09-08 19:29 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
184700  -8 2004  DO8JB DO1DMR JO40 (x3)
185745  -3 2143  DO8JB DC7MA JN39 (x3)
190930 -18 2060  DO8JB DA6WA JO30
191330 -17  442  DO8JB DL3XRZ JN59
191415  +7 1163  DO8JB F1NQP RR73
191730  -3 1854  DO8JB DC7MA JN39
191800 -13  742  DO8JB DO4FOX JN59
192100  -9 1655  DO8JB DC7MA JN39
192345  -2 1162  CQ DO8JB JO32 (x3)

UTC    dB Audio  Message
052445  +1  897  DO8JB ZL2BX -16

UTC    dB Audio  Message
232045 -10 1196  DO8JB OU7M +13

UTC    dB Audio  Message
035930  -7  856  DO8JB S52AS -07

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.