DO1AYJ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

807 messages

Active dates

27 UTC dates

Estimated median S/N

+5 dB

Estimated 10th-90th percentile

-9 to +16 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 720.

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 DO1AYJ 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 DO1AYJ

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

JO50 · 660 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

770 km (approx.)

Last such locator decoded

2026-11-06 17:16 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
170330 +13 2515  SP8HDC DO1AYJ RR73
170345  -7 2515  DO1AYJ SP8HDC 73
170900 +10 2515  3B9FR DO1AYJ JO50 (x3)
171245 -15 2066  DO1AYJ DO5AX JO52
171300  +7 2515  DO5AX DO1AYJ -10
171315 -23 2066  DO1AYJ DO5AX R-18
171330  +4 2515  DO5AX DO1AYJ RR73 (x2)
171415  -8 1800  DO1AYJ YO4CPO KN44 (x2)
171530 +10 2658  UY5QB/A DO1AYJ JO50 (x2)
171630  +7 2658  <R4LL/6B> DO1AYJ JO50

UTC    dB Audio  Message
180200  +2  409  DO1AYJ OM3SX 73
180215  -6 2000  CQ DO1AYJ JO50 (x2)
180315  +9  409  DO1AYJ OM3SX KN08
180315  -3 2000  CQ DO1AYJ JO50
180330 -19 1226  DO1AYJ OK9DMR JO70
180345  +8  409  DO1AYJ OM3SX R-07
180345 -15 2000  OK9DMR DO1AYJ -09
180400 -13 1227  DO1AYJ OK9DMR R-11
180415  -6 2000  OK9DMR DO1AYJ RR73
180430 -16 1226  DO1AYJ OK9DMR 73
180445  -3 2000  CQ DO1AYJ JO50 (x3)
180645 -24 2000  DL1KEA DO1AYJ 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.