SO3K — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,076 messages

Active dates

51 UTC dates

Estimated median S/N

-6 dB

Estimated 10th-90th percentile

-16 to +4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 127, moderate (-15 to -9 dB) 254, strong (≥ -8 dB) 695.

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 SO3K 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 SO3K

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

JO82 · 647 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

439 km (approx.)

Last such locator decoded

2026-09-11 10:57 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
102845  -7 1798  M0OOW SO3K JO82 (x8)
105315  -1 2486  IS0/IK2YCW SO3K JO82 (x2)
105415  +8 2486  <SQ100PKP> SO3K R+15
105715  +1 2290  M0OOW SO3K JO82 (x4)

UTC    dB Audio  Message
234015  +1 1016  Z68PX SO3K JO82 (x4)
234500  +4  435  SO3K Z68PX -02
234515  +5 1016  Z68PX SO3K R-14
234530  +3  435  SO3K Z68PX RR73
234545  +4 1016  Z68PX SO3K 73
234600  -8 1016  SO3K EA1CQ -04
234615  +2 1016  EA1CQ SO3K R-10
234630 -12 1016  SO3K EA1CQ RR73
234645  +2 1016  EA1CQ SO3K 73
222630  -7  957  SO3K EA1IOK IN62 (x3)

UTC    dB Audio  Message
095745  +4 2421  SP9MIV SO3K JO82 (x3)
095915 +14 2421  DJ0MAB SO3K -02
095930 -12 2422  SO3K DJ0MAB R-02
095945  +6 2421  DJ0MAB SO3K RR73
100000  -9 2421  SO3K DJ0MAB 73
124015  -8  828  DK0ACI SO3K JO82
124030 -11  828  SO3K DK0ACI -06
124045  -8  828  DK0ACI SO3K R-04
124100 -20  828  SO3K DK0ACI RR73
124115  -9  828  DK0ACI SO3K 73
234000  -9 2416  SO3K VA3XOV FN03 (x3)

UTC    dB Audio  Message
134230 -13  901  SO3K GB2WWA -14
134830  -7  649  SO3K RR73; DN9WHV <...> +00
142415 +10 2762  SO3K TM2WWA -15 (x2)
075300 -11 1777  SO3K II9WWA -07 (x3)
105430  -6 1107  SO3K RR73; DF6NL <...> -06
110615  +2 1245  SO3K UR9QQ KN77 (x4)
110815  +9 2680  SO3K TM2WWA -03 (x2)
111630 -15 1392  SO3K OP0WWA RR73

UTC    dB Audio  Message
205645  -9 1133  SN4WWA SO3K JO82 (x2)
205730  +5 1558  SO3K RR73; SP2DPK <...> +12
210100 +13  897  SO3K SN3WWA -22 (x4)

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.