EA5KA — reception at SO8OO

Observed FT8 message patterns

Attributed sample

1,192 messages

Active dates

18 UTC dates

Estimated median S/N

+3.9 dB

Estimated 10th-90th percentile

-11.2 to +11 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 74, moderate (-15 to -9 dB) 104, strong (≥ -8 dB) 1,014.

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 EA5KA 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 EA5KA

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 · 704 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,129 km (approx.)

Last such locator decoded

2026-10-03 04:46 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
041145  -8 1719  HK5R EA5KA IM99 (x3)
041330 -14 1719  EA5KA EA1HTF IN52
041345  -7 1718  HK5R EA5KA IM99 (x2)
041430 -18 1719  EA5KA EA1HTF IN52
041445  -5 1718  HK5R EA5KA IM99 (x8)

UTC    dB Audio  Message
022430  +4 1214  R6LIG EA5KA R+09
022445 -10 1776  EA5KA R6LIG RR73
022500  +0 1214  R6LIG EA5KA 73
022530  +0 1214  CQ EA5KA IM99
034730  -6 1153  EA5KA RX3ASQ KO95
034730 -10 1215  EA5KA RN6HK LN14
034745  -2 1214  KB3DQI EA5KA -03
034800 -15 1215  EA5KA RN6HK LN14
034845  -6 1214  CQ EA5KA IM99
035045  -4 1214  AD9AR EA5KA -11
035115  -5 1215  K6BV EA5KA -14 (x2)
040430 -24 2109  EA5KA RZ6L 73
040530  -8 1214  CQ EA5KA IM99 (x2)

UTC    dB Audio  Message
042430  -7 1172  CQ EA5KA IM99
042445  -5 1919  EA5KA YO2MTG KN05
042500  -6 1172  CQ EA5KA IM99
042515  -4 1919  EA5KA YO2MTG KN05
042515  -4 1173  EA5KA SP9DGO KN09
042515  -3 1318  EA5KA F6AOJ JN08
042530  -9 1172  F6AOJ EA5KA +08
042545  -3 1318  EA5KA F6AOJ R+24
042600  -7 1172  F6AOJ EA5KA RRR
042615  -5 1318  EA5KA F6AOJ 73
042630 -10 1172  CQ EA5KA IM99
042745  -1 1173  EA5KA SP9DGO KN09 (x4)

UTC    dB Audio  Message
034430  +5 1315  DL9KM EA5KA RR73
034445  -3 1843  EA5KA DL9KM 73
034500  +4 1315  CQ EA5KA IM99
034515 -13 1052  EA5KA ON1JP +15
034530  +5 1315  ON1JP EA5KA R-10
034545 -12 1052  EA5KA ON1JP RR73
034600  +6 1315  ON1JP EA5KA 73
034630  +6 1315  CQ EA5KA IM99 (x3)
034745  +6 1949  EA5KA RA2FCF KO04
034800  +2 1315  RA2FCF EA5KA -10 (x2)
034915  +5 1949  EA5KA RA2FCF R+00 (x2)

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.