CT3HU — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

270 messages

Active dates

15 UTC dates

Estimated median S/N

-12 dB

Estimated 10th-90th percentile

-21 to -4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 92, moderate (-15 to -9 dB) 108, strong (≥ -8 dB) 70.

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 CT3HU 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 CT3HU

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

IM13 · 50 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

3,645 km (approx.)

Last such locator decoded

2026-09-18 22:33 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
223545  -9 1972  CT3HU F1PBZ -04 (x3)
225315  +2 1108  CT3HU G0IUS -09
225315 -10  839  CT3HU A61EK 73
225345  +5 1108  CT3HU G0IUS -13
225615 -19 1464  SV9QWC CT3HU -16
230315  +3 1465  CT3HU RN6HK LN14 (x2)
230415  -5 1470  CT3HU EB1LA IN73 (x4)
230645 -18 1465  CT3HU IT9JNN JM77 (x2)

UTC    dB Audio  Message
221530  -1 2318  CT3HU F5UKW JN12 (x2)
221615 -15 1428  CQ RI CT3HU IM13
221630  -4 2318  CT3HU F5UKW JN12 (x3)
221745 -22 1427  F1SZC CT3HU RR73
221800  -3 2318  CT3HU F5UKW JN12
221830  +4  954  CT3HU I3LID JN55 (x4)
222000  -3 2318  CT3HU F5UKW JN12 (x3)

UTC    dB Audio  Message
193545 -22 1523  CQ RI CT3HU IM13
193615 -20 1524  DN9MRB CT3HU -01

UTC    dB Audio  Message
143815  -3 1505  CT3HU F1PPH JN07 (x4)
144145 -18 1330  CT3HU M7PTJ IO95
144145  -1 1505  CT3HU F1PPH JN07
144215 -17 1330  CT3HU M7PTJ IO95
144215  -5 1505  CT3HU F1PPH JN07
144245 -14 1330  CT3HU M7PTJ IO95
144245  -8 1505  CT3HU F1PPH JN07
144245  +5 1802  CT3HU EA6Y JM19
144315 -23 1330  CT3HU M7PTJ IO95
144315 -11 1505  CT3HU F1PPH JN07 (x2)
144645 -11  576  CT3HU M8SXX IO91

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.