SP8V — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

464 messages

Active dates

32 UTC dates

Estimated median S/N

-7 dB

Estimated 10th-90th percentile

-14 to +2 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 134, strong (≥ -8 dB) 299.

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 SP8V 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 SP8V

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

KO10 · 351 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

106 km (approx.)

Last such locator decoded

2026-09-20 06:41 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
043300 -19 2320  SP8V R1BDX R-24 (x2)
043715  +0 1871  SP8V IK4TVP -05 (x3)
044515  +4  525  SP8V F5RRS JN36 (x4)
050630  +5  635  SP8V YO9HP +01 (x2)
050730  -4 2642  SP8V 9A4ZM JN86 (x2)
061715  -7 2379  SP8V EU4U RR73
064130 -10  543  EW2GI SP8V KO10

UTC    dB Audio  Message
174100  -1  392  ZL2NU SP8V KO10 (x4)
045800  +4  506  RN2F SP8V KO10 (x5)
050015  +9  506  EW2ZC SP8V KO10 (x6)

UTC    dB Audio  Message
190200  -2  536  R2FBW SP8V KO10 (x2)
043315  -9  538  F6ICX SP8V KO10
043330  -3  528  SP8V F6ICX -10
043345 -10  538  F6ICX SP8V R-16
043400  +4  528  SP8V F6ICX RR73
043615 -10  538  LB4PI SP8V KO10
043630  -5 1754  SP8V LB4PI +01
043645 -11  538  LB4PI SP8V R-21
043700  -5 1254  SP8V LB4PI RR73
043715 -13  537  LB4PI SP8V 73
043730  +9  538  SP8V LZ2VQ KN23 (x4)

UTC    dB Audio  Message
191815  -6  715  SQ6WA SP8V KO10 (x2)
191900  -9  714  DG0OBU SP8V KO10 (x13)

UTC    dB Audio  Message
153030  -4  657  SP8V DN9DKN 73
153430 -11 2298  SP8V DO9BAU JO62
153500 -14  711  SP8V DN9ETS JO41 (x3)
132230 -14  893  SP8V DK7UY JO44
132300 -17 1597  SP8V PD9FLX R-05
133700 -17  894  SP8V LZ2VQ -10 (x4)
155745  -7  904  SP8V CT3MD -02 (x2)
081600 -13 2283  SP8V HB9ACA -18 (x2)

UTC    dB Audio  Message
184500  +6 2898  SP8V GW/VK5PO +02
191045 -14 1406  SP8V EA8AT RR73
161800  -9 3076  SP8V MW0GWL RR73 (x3)
163845  -4 2430  SP8V LA9VBA +00 (x2)
165645 -14  882  SP8V EA1DME IN82
170930 -14 2443  SP8V OK2CNI -02
171330  -3 2810  SP8V 9A170NT -22
182930  -5 2679  SP8V S59SV -14
150900  -5 1184  SP8V DK3HV JO31 (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.