SQ3RX — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

108 messages

Active dates

8 UTC dates

Estimated median S/N

+3 dB

Estimated 10th-90th percentile

-5 to +9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 99.

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 SQ3RX 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 SQ3RX

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

JO81 · 68 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

379 km (approx.)

Last such locator decoded

2026-09-20 17:28 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
171400  +5 2244  ZS6NL SQ3RX JO81
171430  +6 2244  ZS6KBS SQ3RX JO81 (x2)
171600  +7 2244  ZS6NL SQ3RX JO81 (x4)
172345  +2 2244  ZS6KA SQ3RX JO81 (x4)
172600  +2 2244  ZS6NL SQ3RX JO81 (x4)

UTC    dB Audio  Message
213730  -9  466  SQ3RX XU7O +04 (x2)
054700 +11 2960  SQ3RX IU5TPM JN53
054730  +2 2480  SQ3RX VK7AC -09
054730 +16 2960  SQ3RX IU5TPM JN53

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.