A61DD — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

6,853 messages

Active dates

41 UTC dates

Estimated median S/N

-12 dB

Estimated 10th-90th percentile

-18 to -0.7 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,914, moderate (-15 to -9 dB) 2,673, strong (≥ -8 dB) 2,266.

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 A61DD 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 A61DD

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

LL85 · 5,339 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

4,056 km (approx.)

Last such locator decoded

2026-09-19 00:22 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
001545  -2  775  CQ A61DD LL85
001600  +7 2593  A61DD R4ABW LO00
001615  -2  775  CQ A61DD LL85 (x13)

UTC    dB Audio  Message
201400  +2  840  A61DD RC6OD KN87 (x8)
231430  -9  872  A61DD DG5PW JO30 (x4)
201100  +0  886  A61DD 9A7KWS JN95 (x3)

UTC    dB Audio  Message
072830 -10  921  A61DD EA4LO IN80
073000 -10 1008  A61DD PD0PMF JO32 (x6)
074900 -12 1009  A61DD G7FEP IO81
083330 -17 1477  A61DD R1NBC KP54
084515 -17 1008  CQ A61DD LL85 (x2)
084830 -16  200  A61DD F5MJN JN09 (x2)
085700 -16 1008  A61DD ON8PIE -12
090830 -14 1007  A61DD F4JHS JO10

UTC    dB Audio  Message
082915 -16 1146  CQ A61DD LL85 (x2)
083045 -20 1145  DN9DZ A61DD -18
083145 -20 1145  CQ A61DD LL85                         a1
082130 -16 1035  A61DD M9NEV JO01
090100 -15 1035  A61DD PA2JH JO22
090200  +2 1035  A61DD IU2PKC JN45 (x5)
091430  -9 1039  A61DD F5GPE JN25
093100 -17 1406  A61DD GJ0KYZ -08 (x3)

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.