RT6O — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,854 messages

Active dates

14 UTC dates

Estimated median S/N

-15 dB

Estimated 10th-90th percentile

-21 to -1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 820, moderate (-15 to -9 dB) 558, strong (≥ -8 dB) 476.

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 RT6O 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 RT6O

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

KN88 · 1,226 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,114 km (approx.)

Last such locator decoded

2026-09-08 19:41 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
193545  -4 1187  RV3ZK RT6O 73
193615  -5 1187  CQ RT6O KN88
193645  -7 1186  R2ATY RT6O KN88 (x3)
193845 -10 1496  RT6O RK3QA +04
193900  -4 1187  RK3QA RT6O R+14
193915  -7 1496  RT6O RK3QA RR73
193930  +0 1187  RK3QA RT6O 73
194000  -1 1187  CQ RT6O KN88 (x2)
194100  +1 1187  UA6BRD RT6O KN88 (x2)
195915  -4 1496  RT6O UA6BRD -01 (x2)

UTC    dB Audio  Message
210045  -2  590  RT6O PA3KUS R-16
210115  +4 1228  RT6O SA5CDO JO78
210115  -3  591  RT6O PA3KUS 73
210415  +8 1228  RT6O SA5CDO R-04 (x3)
210515  -5  570  RT6O EA1IOK IN62
210530  +2 1626  CQ RT6O KN88
210545  -7  570  RT6O EA1IOK IN62 (x2)
210615  -3 1626  RU4SS RT6O KN88 (x2)
210645 -14  570  RT6O EA1IOK IN62
210715  -6 1626  RU4SS RT6O KN88 (x2)

UTC    dB Audio  Message
173445 -11 1889  CQ RT6O KN88
173515  -9 1889  DF3NK RT6O -03 (x2)
173615  -4 1889  CQ RT6O KN88 (x2)
173700  -1 1042  RT6O G8DQP IO82
173715  -5 1889  G8DQP RT6O -09
173730  +0 1041  RT6O G8DQP R+05
173745  -6 1889  G8DQP RT6O RR73
173800  +1 1041  RT6O G8DQP 73
173930  +0 1889  RT6O M7LYG IO93
173945  +7 1889  M7LYG RT6O -05
174000  +1 1889  RT6O M7LYG R+06
174015  +9 1889  M7LYG RT6O RR73
174030  -4 1889  RT6O M7LYG 73

UTC    dB Audio  Message
190345 -15 1881  <...> RT6O KN88
190530 -16 1881  RY7G RT6O KN88
190545  -2  730  RT6O RY7G -11
190600 -17 1881  RY7G RT6O R+11
190615  -4  731  RT6O RY7G RR73
190630 -18 1881  RY7G RT6O 73
190700 -18 1881  CQ RT6O KN88 (x2)
190830 -17 1881  RY7G RT6O R-14
190900 -18 1881  <...> RT6O R-14 (x3)
191130 -14 1881  UB1OBV RT6O KN88 (x3)

UTC    dB Audio  Message
150845 -22 1658  CQ RT6O KN88                          a1 (x2)
150945 -21 1659  RA4CIY RT6O R+01
151045 -21 1658  D2UY RT6O KN88 (x3)
151215 -20 1659  CQ RT6O KN88
151345 -20 1659  RW4F RT6O RR73
151415 -21 1659  UA9OTW RT6O R-04 (x2)
151545 -17 1659  CQ RT6O KN88
151600  +7  727  RT6O UA3ZQN KO90 (x3)
151715 -23 1659  CQ RT6O KN88

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.