SQ3F — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

197 messages

Active dates

13 UTC dates

Estimated median S/N

+8 dB

Estimated 10th-90th percentile

-10 to +17 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 172.

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 SQ3F 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 SQ3F

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 · 134 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

379 km (approx.)

Last such locator decoded

2026-09-06 16:45 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
171230  +9 2455  VK6DW SQ3F JO81 (x3)
171500  +4 1833  YE4FNN SQ3F JO81 (x3)
171630  +2 1833  FK8GM SQ3F JO81 (x2)
164315  +9 2100  EA7LHK SQ3F JO81 (x3)
164515 +12 1951  SN100PKP SQ3F JO81 (x3)
164630  +8 1820  SQ3F RR73; OM0MR <...> +08

UTC    dB Audio  Message
164815  +8 2779  YL2TM SQ3F R-01
164830  -9 1115  SQ3F YL2TM RRR
164845  +8 2779  YL2TM SQ3F 73
165045 +13  375  HB0/DL5RMH SQ3F JO81 (x3)
165215 +12  749  SO100PKP SQ3F JO81 (x2)
165345  +7 1876  3B8FA SQ3F JO81 (x4)
165945  +9 2102  DW7KPH SQ3F JO81 (x3)

UTC    dB Audio  Message
205445  +7 1779  ER1CW SQ3F JO81
205500 -11 1688  SQ3F ER1CW +08
205515  +5 1779  ER1CW SQ3F R-01
205530 -14 1689  SQ3F ER1CW RR73
205545  +1 1779  ER1CW SQ3F 73
173045  +2 1806  SP8BJU SQ3F JO81
173100  +4 1554  SQ3F SP8BJU +04
173115  +2 1806  SP8BJU SQ3F R+16
173130  +3 1554  SQ3F SP8BJU RR73
173145  +4 1806  SP8BJU SQ3F 73

UTC    dB Audio  Message
160100 -20 1793  SQ3F CN2DX +04 (x2)
163115  -8 2853  3G0YM SQ3F JO81 (x2)
125130 -16 2388  SQ3F GB2WWA 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.