SP4NKU — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

871 messages

Active dates

40 UTC dates

Estimated median S/N

-3.3 dB

Estimated 10th-90th percentile

-14.4 to +6.3 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 67, moderate (-15 to -9 dB) 199, strong (≥ -8 dB) 605.

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 SP4NKU 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 SP4NKU

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

KO12 · 667 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

297 km (approx.)

Last such locator decoded

2026-09-19 23:34 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
232415  -1 2421  OK2UPY/P SP4NKU 73
232430  +7 2265  SP4NKU OK2UPY/P 73
232515  +6 2421  OZ1BZJ SP4NKU KO12 (x4)
232730 +14 2421  SP4NKU OZ1BZJ +00
232745  +7 2421  OZ1BZJ SP4NKU R+05
232800 +13 2421  SP4NKU OZ1BZJ RR73
232815  +8 2421  OZ1BZJ SP4NKU 73
233200  -1 2420  DG3LV SP4NKU KO12 (x5)

UTC    dB Audio  Message
144230  +2  667  SK150LM SP4NKU R+07
144415 +10  667  SA7CHI SP4NKU KO12 (x2)
144500  -6  667  SP4NKU SA7CHI -02
144515  -9  667  SA7CHI SP4NKU R-04
144530  +0  667  SP4NKU SA7CHI RR73
144545 -10  667  SA7CHI SP4NKU 73
144630  -4  667  SP4NKU SA7CHI RR73
011645  -3 2658  SP4NKU D44TWO -19 (x4)
162915 -24 2060  R70SAB SP4NKU KO12
162930 +14 2838  SP4NKU R70SAB -06 (x2)

UTC    dB Audio  Message
200315  -9 1937  SP4NKU F5RRS JN36 (x8)
002330 +13 1490  SP4NKU LZ2IP -18 (x2)

UTC    dB Audio  Message
151500  +9 2694  SP4NKU PD0PWH JO21 (x3)
152130  -9 2683  SP4NKU RN4AZ LN29
152130  -8 1825  SP4NKU M7JVT IO94 (x2)
152200 -13 2693  SP4NKU F5OYA/P
152230 -10 1825  SP4NKU M7JVT R-03
152330  -8 2692  SP4NKU PA2KV JO33 (x2)
152400  -7 2102  SP4NKU EP2AES LM55
152430 -10 2693  SP4NKU PA2KV 73
154830  +0  771  SP4NKU DK9NP -05 (x3)

UTC    dB Audio  Message
110330  -3 2447  SP4NKU DO1FDK JO41 (x3)
093115  -6 2687  SP4NKU F1PBZ -04 (x2)
093915 -17 2212  SP4NKU RL3K KO91
094315 -15 1125  SP4NKU DL3MIB R-15 (x2)
153315 -17 2120  SP4NKU F4IDN R+00 (x2)
153415 -20 1783  SP4NKU PE9JAN JO22 (x2)
101945  -5 2330  SP4NKU <...> -08 (x3)

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.