SM5XHS — reception at SO8OO

Observed FT8 message patterns

Attributed sample

18 messages

Active dates

8 UTC dates

Estimated median S/N

-19 dB

S/N percentile sample

Too small

Recurring-pattern threshold

Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 3.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SM5XHS 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 SM5XHS

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

JO78 · 7 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,048 km (approx.)

Last such locator decoded

2026-09-21 19:21 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
170945 -12 1482  SM5XHS RA3LBW R-08 (x2)
171145 -16 1772  SM5XHS RZ4FWA R-13
085415  +8 2738  SM5XHS DB2HA JO52 (x9)
164930 -14 1997  SM5XHS OE9GWV JN47 (x3)

UTC    dB Audio  Message
140815  -1 2646  SM5XHS F1PBZ -09 (x4)
160230 -21 1572  SM5XHS EA3EDU JN01 (x4)
165830  -6 1074  SM5XHS 9K2YM R-14 (x2)
090830 -10 1134  SM5XHS RW9AD MO05 (x3)

UTC    dB Audio  Message
182500 -19 1817  SM5XHS NF3R R-16 (x2)
182630  -7 1818  SM5XHS IZ4AIF JN54 (x2)
200300  +4 2068  SM5XHS RZ4FWA LO23 (x2)
200400 -12 1615  SM5XHS UT4QM KN77
125130  +3 1061  SM5XHS F5IXN JN23 (x2)
181545 -12 1834  SM5XHS ON5RZ JO21 (x3)
182515 -18 1809  SM5XHS EA1CQ R-14 (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.