SP5ALV — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,107 messages

Active dates

21 UTC dates

Estimated median S/N

+10 dB

Estimated 10th-90th percentile

-8 to +19 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 85, strong (≥ -8 dB) 1,016.

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 SP5ALV 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 SP5ALV

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

KO02 · 601 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

290 km (approx.)

Last such locator decoded

2026-09-19 20:00 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
195430 +27  898  9A6P SP5ALV 73
195500 +19  898  R4ABW SP5ALV KO02 (x3)
195615  -3 2156  SP5ALV R4ABW -02
195630 +17  898  R4ABW SP5ALV R+03
195645  -3 2156  SP5ALV R4ABW RR73
195700 +18  898  R4ABW SP5ALV 73
195730 +16  898  F1TXI SP5ALV KO02 (x7)

UTC    dB Audio  Message
180445  -5  638  SP5ALV PE1JLZ JO22 (x2)
190715  -7 1982  SP5ALV UF5F RR73
191415 -12 1071  SP5ALV JA6GCE RR73
065145 -21 1137  SP5ALV OZ1JMJ RR73
065230 -18 2166  HA3TBL SP5ALV KO02
065515 -10 1658  SP5ALV LZ3HG -02 (x2)
065815 -15 2165  SP5ALV DG3AWF R-09
074245 -14 1974  SP5ALV YO9ADN +22 (x2)
074615 -15 2167  SP5ALV IK2ZJR JN45 (x4)

UTC    dB Audio  Message
111830 -13 1070  SP5ALV DN9GLA 73
115415  -3 2591  SP5ALV PD0HLA -05
115445 -17 1565  SP5ALV TA2R R-11
115445  -5 2591  SP5ALV PD0HLA -05
120845 -15 2225  SP5ALV DL8TV +02 (x2)
104815 -22 1193  SP5ALV PA3AGN JO22
161915  -5  412  SP5ALV UR4QWW KN77 (x4)
102345 -11 1976  SP5ALV IW6MXV +05 (x2)
091600 -12 1313  SP5ALV RZ9A +14 (x2)

UTC    dB Audio  Message
074900 -10 2059  SP5ALV GJ0KYZ IN89 (x3)
075030  -9 2059  SP5ALV RW4Z -09 (x2)
080715 -18 2057  SP5ALV RW6HPS LN15 (x3)
081045 -17  878  SP5ALV G0JEI -14 (x2)
084515 -19 2144  SP5ALV R2PA RR73 (x2)
185530 -19 1681  SP5ALV DG0OFT RR73
190200 -20 1376  SP5ALV T77R +01
063345 -21 1158  SP5ALV RA3Y RR73

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.