A61DI — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

2,103 messages

Active dates

9 UTC dates

Estimated median S/N

-8 dB

Estimated 10th-90th percentile

-18.3 to +2 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 371, moderate (-15 to -9 dB) 596, strong (≥ -8 dB) 1,136.

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 A61DI 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 A61DI

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

LL64 · 1,791 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

3,901 km (approx.)

Last such locator decoded

2026-07-29 17:32 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
152230 -10  398  CQ A61DI LL64 (x3)
161915  -8 1472  A61DI RG6S -12 (x2)
164115  +2 2221  A61DI 9A3K JN65 (x6)
170645 -10  550  A61DI F4BYF 73
173130 -11  397  CQ A61DI LL64 (x3)

UTC    dB Audio  Message
081900 -13 1817  A61DI DL1GKH 73
101200 -18 1345  A61DI 9A1CCS JN85 (x5)
104830 -18 1872  A61DI IW7EAP JN81 (x2)
141300  +4 2260  A61DI UX4AA KO70 (x4)
101045  -6  393  A61DI DL3MSB JO31 (x3)

UTC    dB Audio  Message
202500  +0 1013  A61DI DL1HDL JO53 (x2)
170730  -5 1432  A61DI RC6OD KN87
200400  -1  982  A61DI SP3IPA JO82 (x7)

UTC    dB Audio  Message
171030 -18 1217  A61DI R3XS KO74
171400 -11 2384  A61DI SP6LUT JO80 (x11)

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.