SP1COU — reception at SO8OO

Observed FT8 message patterns

Attributed sample

155 messages

Active dates

8 UTC dates

Estimated median S/N

-18 dB

Estimated 10th-90th percentile

-23 to -13 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 116, moderate (-15 to -9 dB) 36, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP1COU 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 SP1COU

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

JO73 · 113 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

613 km (approx.)

Last such locator decoded

2026-08-18 10:50 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
105045  -5 2658  SP1COU DL1R JN58
105215  -8  973  SP1COU RA3Y -05 (x2)
105300 -17 1690  RA3Y SP1COU R-18
105315 -13  974  SP1COU RA3Y RR73
105330 -15 1690  RA3Y SP1COU R-18 (x2)
105445 -18  973  SP1COU RA3Y -02
105500 -15 1689  RA3Y SP1COU R-19
105515 -12  973  SP1COU RA3Y RR73
105700 -15 1690  DF3IAL SP1COU -14 (x4)
110000 -17 1690  9A1CCB SP1COU RR73

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.