IR4DCI — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

329 messages

Active dates

2 UTC dates

Estimated median S/N

-5.7 dB

Estimated 10th-90th percentile

-13 to +1 dB

Recurring-pattern threshold

Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 94, strong (≥ -8 dB) 223.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with IR4DCI 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 IR4DCI

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

JN54 · 238 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,013 km (approx.)

Last such locator decoded

2026-09-19 21:26 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
212345  -1 2672  IR4DCI SV1EKI KM18
212400  +0 2536  CQ IR4DCI JN54
212415  +2 2672  IR4DCI SV1EKI KM18 (x3)
212530  -5 2536  CQ IR4DCI JN54
212545  -7 2672  IR4DCI SV1EKI KM18
212545 +12 2843  IR4DCI PD0IFI JO32
212600  -4 2536  CQ IR4DCI JN54
212615 +17 2843  IR4DCI PD0IFI JO32
212645 -10 3033  IR4DCI TA2EE KM69
212645 +13 2822  IR4DCI PD0IFI JO32
212715 -14 3033  IR4DCI TA2EE KM69
212715 +15 2822  IR4DCI PD0IFI JO32
212745 -11 3033  IR4DCI TA2EE KM69

UTC    dB Audio  Message
194230  -3 1848  RK6OQ IR4DCI -14
194245  +0 1589  IR4DCI RK6OQ R-18
194300  -6 1848  RK6OQ IR4DCI RR73
194315  +3 1589  IR4DCI RK6OQ 73
194330  +0 1848  SV1DZB IR4DCI -11
194730  -9 1443  IR4DCI YO8CRU KN36 (x2)
205115  +3 2504  IR4DCI DK7UY JO44 (x8)

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.