S55OO — reception at SO8OO

Observed FT8 message patterns

Attributed sample

3,555 messages

Active dates

45 UTC dates

Estimated median S/N

-8 dB

Estimated 10th-90th percentile

-17 to +2 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 481, moderate (-15 to -9 dB) 1,124, strong (≥ -8 dB) 1,950.

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 S55OO 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 S55OO

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

JN76 · 2,493 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

631 km (approx.)

Last such locator decoded

2026-10-20 08:22 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
093830  -6 2139  ON8HW S55OO +00 (x2)
104745  -3 2139  DK1HSI S55OO +03
104800 -14  994  S55OO DK1HSI R+02
104815  -5 2139  DK1HSI S55OO RR73
104830 -11  993  S55OO DK1HSI 73
105400  -1 2139  PD3LWD S55OO -04 (x2)
110130 -15 2139  M7FSE S55OO -08 (x5)
111915  -2 2139  DH5IS S55OO -04 (x2)

UTC    dB Audio  Message
182215  +5  846  CQ S55OO JN76
182230  +7 2774  S55OO DO9MH JO31
182245 +12  846  DO9MH S55OO -01
182300  +8 2774  S55OO DO9MH JO31 (x3)
182645  -6 1128  AN5CV S55OO +02 (x5)
165915  -4 1881  DL1BTX S55OO +05
165930  +1 2501  S55OO DL1BTX R+00
165945  -6 1881  DL1BTX S55OO RR73
170000  +6 2501  S55OO DL1BTX 73

UTC    dB Audio  Message
192845  +8 2476  S55OO DL3YEE -09 (x2)
192930 -23 1669  DL3YEE S55OO 73
192945 -22 1396  S55OO HA5UK -03
193000 -24 1669  HA5UK S55OO R+11
193130 -24 1669  SP5JMA S55OO RR73
193345 -22 1670  CN8DN S55OO JN76 (x8)
194545 -24 1670  J48S S55OO JN76

UTC    dB Audio  Message
065315  +4 2096  <...> S55OO JN76 (x2)
135230 -16 1862  S55OO M0CKX RR73 (x2)
145300  -8 2270  S55OO JG8DIV QN02 (x2)
172030  +2 1723  S55OO AO5FSB -07 (x2)
172315  +8  880  S55OO EB1DJ -08 (x2)
172815  -9 1421  S55OO EA5JLN +03
071600  -9 2287  S55OO TA3MPK -09 (x2)
072030  +4 1314  UU4DWV S55OO JN76
072345  -2 2335  S55OO PD0WH -09

UTC    dB Audio  Message
082645 -16 1372  <...> S55OO JN76 (x2)
180145 -10  668  S55OO PE1MSU -13 (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.