DB4TA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

126 messages

Active dates

7 UTC dates

Estimated median S/N

-3 dB

Estimated 10th-90th percentile

-19 to +10 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 74.

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 DB4TA 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 DB4TA

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

JN48 · 99 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

941 km (approx.)

Last such locator decoded

2026-09-20 10:57 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
224045  +1 1878  II9IAGM DB4TA JN48 (x4)
224315  -3 1979  I3/DG9MDM DB4TA JN48 (x8)
224700  +5  900  DB4TA IR0IADU +04
224715  +3 1979  I3/DG9MDM DB4TA R+09
105700 -20 1979  <II4IANT> DB4TA JN48

UTC    dB Audio  Message
204730 -16 1326  RD0L/3 DB4TA JN48 (x3)
204945 -20 1375  DB4TA II7IAME -16
205000 -14 1326  RD0L/3 DB4TA R-09
205130 -12 1326  DO1SWC DB4TA -17 (x2)
212030 -11  943  DB4TA II9IABJ -14 (x2)
211530  -4 2306  DB4TA II8IHBC -02
221230 -10  948  DB4TA II7IABB -12
221545 -16  948  II4IANT DB4TA JN48
221845 -17 1252  SP5DFK/QRP DB4TA JN48 (x3)

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.