EA5KB — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

4,937 messages

Active dates

87 UTC dates

Estimated median S/N

-15 dB

Estimated 10th-90th percentile

-23 to -6.4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2,331, moderate (-15 to -9 dB) 1,682, strong (≥ -8 dB) 924.

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 EA5KB 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 EA5KB

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

IM99 · 4,136 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,129 km (approx.)

Last such locator decoded

2026-09-19 00:53 UTC

Other locator fields attributed to this token: IM75 (1).

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
004900 -13 1635  CQ EA5KB IM99 (x7)
005215 -14 1636  EA5KB TA4SSK KM57
005230 -14 1635  CQ EA5KB IM99
005245 -15 1636  EA5KB TA4SSK KM57
005300 -23 1635  CQ EA5KB IM99
005315 -16 1636  EA5KB TA4SSK KM57 (x4)

UTC    dB Audio  Message
195915  +2 1634  EA5KB YO5QDN KN17 (x4)
173845 -12 1362  EA5KB OZ1EDR JO65 (x10)
004215  -3  336  EA5KB UB3ADO/P KO95

UTC    dB Audio  Message
212345 -21 1883  EA5KB G8GDS -08
212430 -18 1882  CQ EA5KB IM99
212445 -16 1883  EA5KB G8GDS -08
212530 -13 1882  CQ EA5KB IM99
164945  +0 1746  EA5KB DA1MHH JO31 (x3)
170600 -24 1582  CQ EA5KB IM99                         a1 (x2)
173445  +7 2244  EA5KB G4DBW JO01 (x2)
200845 -16 1709  EA5KB M8JYD IO81 (x4)

UTC    dB Audio  Message
150700 -17 1526  CQ EA5KB IM99 (x5)
162000 -20 1612  <...> EA5KB -12
162200 -23 1613  Z62NS EA5KB +01
162400 -22 1612  CQ EA5KB IM99
132515  -6  491  EA5KB IK4LZH JN54 (x2)
135015 -20 1473  EA5KB IN3ADG -17 (x3)
140315 -10  491  EA5KB IK4LZH JN54 (x2)

UTC    dB Audio  Message
214100  -7 1482  EA5KB ER5GB +03 (x2)
214200  +9  467  EA5KB SP5JMA KO02

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.