SP9TEX — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,858 messages

Active dates

32 UTC dates

Estimated median S/N

-0.2 dB

Estimated 10th-90th percentile

-16 to +14 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 212, moderate (-15 to -9 dB) 314, strong (≥ -8 dB) 1,332.

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 SP9TEX 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 SP9TEX

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

JO90 · 968 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

208 km (approx.)

Last such locator decoded

2026-09-13 18:42 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
184015  +0 1616  SQ6FHT SP9TEX -16 (x2)
184100  -1 1400  SP9TEX SP7ROM JO91
184115  -2 1616  SQ6FHT SP9TEX -16
184215  +0 1616  CQ SES SP9TEX JO90
184245  +6 1616  OK1KUB SP9TEX -11
184400  -3 1647  SP9TEX HG8LXL KN06 (x4)
184700 +13  345  SP9TEX SQ3TR JO82
184700  +3 1616  SP9TEX IZ4AIF R+22 (x2)
185445 -17 1617  SP7ROM SP9TEX -14 (x2)

UTC    dB Audio  Message
182245  +7 1832  SP7TJ SP9TEX +03
182300 +19 1831  SP9TEX SP7TJ KO00
182315 +25 1832  SP7TJ SP9TEX +02
182330 +17 1831  SP9TEX SP7TJ R+16
182345 +24 1832  SP7TJ SP9TEX RR73
182400 +13 1831  SP9TEX SP7TJ 73
182415 +23 1832  CQ SES SP9TEX JO90
182445 +15 1832  SQ7LQT SP9TEX JO90 (x2)
182530  +8 1680  SP9TEX SQ7LQT -01
182545 +18 1832  SQ7LQT SP9TEX R-09
182600  +7 1680  SP9TEX SQ7LQT RR73
182615 +16 1832  SQ7LQT SP9TEX 73
182700  +8 1160  SP9TEX RK6OQ KN87
182900 +13 1831  SP9TEX SP7TJ KO00

UTC    dB Audio  Message
195830 -17 1152  SP9TEX ON1JP -16
200700  -3 1465  SP9TEX IK2HNG -01 (x2)
075400  -9 1476  SP9TEX OE8PIT JN66 (x4)
075600 -10 1732  SP9TEX RW6HP R+05
075930  -9 2013  SP9TEX F5RRS JN36 (x3)
080930 -12 1476  SP9TEX DJ0MAB JN49
081030  -6 3011  SP9TEX F4BYA JN19 (x3)

UTC    dB Audio  Message
122845 -22 2068  SP9TEX UB6OCP -08
210930 -12  780  SP9TEX SV2CLJ KN10 (x2)
101200 -16 1219  SP9TEX PI4IPA R+02

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.