SP9TEX — reception at SO8OO

Observed FT8 message patterns

Attributed sample

2,635 messages

Active dates

47 UTC dates

Estimated median S/N

+2 dB

Estimated 10th-90th percentile

-14.1 to +14 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 218, moderate (-15 to -9 dB) 320, strong (≥ -8 dB) 2,097.

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 · 1,356 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

208 km (approx.)

Last such locator decoded

2026-10-08 19:33 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
191945  +4 1437  SQ5ANT SP9TEX JO90 (x2)
192030  +9 1446  SP9TEX SQ5ANT +01
192045  +3 1437  SQ5ANT SP9TEX R+21
192100  +6 1446  SP9TEX SQ5ANT RR73
192115  +4 1437  SQ5ANT SP9TEX 73
192345  +4 1437  SQ8AZT SP9TEX JO90 (x2)
192530 -10 1813  SP9TEX SQ8AZT +11
192545  +7 1437  SQ8AZT SP9TEX R+05
192600 -10 1813  SP9TEX SQ8AZT RR73
192615  +8 1437  SQ8AZT SP9TEX 73
193200 +11 1431  N8RAF SP9TEX JO90 (x3)

UTC    dB Audio  Message
115215  -5 1418  SQ2JAD SP9TEX JO90
125645  -4 1417  SQ8AZT SP9TEX JO90 (x4)
125830 -10 1899  SP9TEX SQ8AZT +21
125845  -2 1136  SQ8AZT SP9TEX R+09
125900 -10 1899  SP9TEX SQ8AZT RR73
125915  -1 1137  SQ8AZT SP9TEX 73
181845  -3 1791  SP9TEX DL6ZOG JO52 (x2)
190300  -3 2101  SP9TEX GU4WRP -05 (x2)
163715 -14  997  SP9TEX SA3KAK JP82
190615 -12 2715  DD3ZZ SP9TEX JO90

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)

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.