SP9JBX — reception at SO8OO

Observed FT8 message patterns

Attributed sample

440 messages

Active dates

33 UTC dates

Estimated median S/N

+8 dB

Estimated 10th-90th percentile

-12 to +16 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 59, strong (≥ -8 dB) 365.

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 SP9JBX 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 SP9JBX

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 · 320 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

208 km (approx.)

Last such locator decoded

2026-10-18 15:26 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
162045  -6 1403  H49A SP9JBX JO90 (x15)

UTC    dB Audio  Message
053015  +1 1351  SP9JBX DL9KM JN68 (x5)
054130 -10 2709  J38LD SP9JBX JO90 (x2)
224315 -12  791  SP9JBX D44TWO -05 (x3)
034845 -12  791  TN8GD SP9JBX 73
051800  -2  332  SP9JBX ZL3IO -02 (x2)
220515 -17 2143  SP9JBX PY5QW -17 (x2)

UTC    dB Audio  Message
045530  +2  991  SP6FME SP9JBX -04
045545  +6  991  SP9JBX SP6FME R-06
045600  +2  991  F5RRS SP9JBX -05
045615 +11  991  SP9JBX SP6FME R-06
045615  -6 1845  SP9JBX F5RRS R-08
045630  +5  991  F5RRS SP9JBX RR73
045645 +20  991  SP9JBX SP6FME JO90
045700  +7  991  SP6FME SP9JBX -08
045715 +17  992  SP9JBX SP6FME R-02
045730  +9  991  SP6FME SP9JBX RR73
045745 +16  992  SP9JBX SP6FME 73
034445 +11 1082  V47YA SP9JBX JO90 (x2)
211615  +7 1066  BD8ENU SP9JBX -03 (x2)

UTC    dB Audio  Message
122730  -2  491  SP9JBX EA3HMM 73
123100 -17 1343  SP9JBX DL1NCH RR73
123300  -6  764  SP9JBX EB3JT JN01 (x3)
175045 -12 1651  SP9JBX G4TTO -07
051615 -17  994  SP9JBX I1FLC RR73
052600 -10  737  SP9JBX IZ8VYU R-04 (x2)
055845 -13 1464  SP9JBX R4FDW +08 (x2)
213600  -3 2569  SP9JBX 9Y4C +05 (x2)
213800  -4  501  SP9JBX XU7O RR73
055345  -7 2871  SP9JBX ZL1VAH RRR

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.