EU7A — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

379 messages

Active dates

5 UTC dates

Estimated median S/N

+6 dB

Estimated 10th-90th percentile

-4 to +16 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 356.

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 EU7A 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 EU7A

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

KO53 · 204 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

747 km (approx.)

Last such locator decoded

2026-09-20 03:59 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
035130  +7  281  HC1BG EU7A KO53 (x5)
035530  +3  281  TF3VS EU7A KO53 (x5)
035900  +9  281  OZ1HGH EU7A KO53 (x2)
040145  +0 1352  EU7A OZ1HGH -15 (x3)

UTC    dB Audio  Message
201630  +4  409  CQ JA EU7A KO53
201645  +3 1509  EU7A UA3AGW KO85
201700  +8  409  CQ JA EU7A KO53
201715  +5 1509  EU7A UA3AGW KO85
201830  +7 2905  CQ JA EU7A KO53 (x4)
202230 +17  493  JI4WAO EU7A KO53 (x4)
202445  +2  493  BD4UJ EU7A KO53 (x3)

UTC    dB Audio  Message
081630  -8 2515  EU7A 7Z1BS -04 (x2)
103400 -16 1283  EU7A EA8VJ -13 (x2)
103930 -24 1860  EU7A EA8CQW IL18 (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.