EA1ACJ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

355 messages

Active dates

48 UTC dates

Estimated median S/N

-12 dB

Estimated 10th-90th percentile

-18 to -7 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 81, moderate (-15 to -9 dB) 215, strong (≥ -8 dB) 59.

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 EA1ACJ 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 EA1ACJ

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

IN73 · 233 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,150 km (approx.)

Last such locator decoded

2026-11-04 20:18 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
200530  -1 1359  EA1ACJ SV5BYP +14
201015 -23 1287  EA1ACJ PA3ARI RR73
201800 -14 1286  CQ EA1ACJ IN73
223545  -3  433  EA1ACJ IK4LZH JN54 (x3)
095845 -17  878  EA1ACJ DK1WU -06
100645  -3 2629  EA1ACJ DB2HA JO52 (x8)

UTC    dB Audio  Message
120800 -20 1475  EA1ACJ PD4FL JO33
120900 -17 1846  EA1ACJ IV3JJT JN65
114630  -6  768  EA1ACJ PD1RMB JO32 (x4)
100845  -8  895  CQ EA1ACJ IN73 (x2)
104515  +2 1167  S9R EA1ACJ IN73 (x7)

UTC    dB Audio  Message
190730  -7 1696  EA1ACJ IS0KNG -14 (x2)
190930  -1 3042  EA1ACJ IW5ALZ JN53
190930 -13 1696  EA1ACJ IS0KNG -14 (x5)
122200  -8  720  EA1ACJ EA1BWU R-18
122230  -6 2907  EA1ACJ OE7MAH -11
122230 -12  721  EA1ACJ EA1BWU 73
122300  -3 2906  EA1ACJ OE7MAH -11
090030 -15  964  RY2FAP/3 EA1ACJ IN73 (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.