SM7JKW — reception at SO8OO

Observed FT8 message patterns

Attributed sample

3,696 messages

Active dates

35 UTC dates

Estimated median S/N

-9 dB

Estimated 10th-90th percentile

-17 to 0 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 529, moderate (-15 to -9 dB) 1,388, strong (≥ -8 dB) 1,779.

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 SM7JKW 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 SM7JKW

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

JO65 · 2,009 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

855 km (approx.)

Last such locator decoded

2026-10-16 05:36 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
230815 -21 1715  SM7JKW YB5NDR RR73
033600 -21 1684  SM7JKW TA5DOB -07 (x2)
033800  +2  833  SM7JKW UT2AU KO61 (x3)
051615 -14 2369  HJ4RUS SM7JKW JO65
052245 -15 1204  PP5GP SM7JKW JO65
052815 -12 2257  LW6EGE SM7JKW JO65 (x5)
053530  -8 1098  EA8CDG SM7JKW JO65 (x2)

UTC    dB Audio  Message
174700  -4  810  KF9UG SM7JKW JO65 (x5)
174945  -4 1755  SM7JKW R6LMH KN97 (x2)
194345  -4 1848  SM7JKW EA8AT -03 (x2)
202015  -6 1188  SM7JKW F5OYA/P JN13 (x4)
203445 -19 1425  SM7JKW WB2BIN -23 (x2)

UTC    dB Audio  Message
195230  -5 1210  SM7JKW DF6OX JO60

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.