SP1BSJ — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

299 messages

Active dates

28 UTC dates

Estimated median S/N

+2 dB

Estimated 10th-90th percentile

-10 to +12 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 252.

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 SP1BSJ 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 SP1BSJ

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

JO73 · 168 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

613 km (approx.)

Last such locator decoded

2026-09-18 22:09 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
223130  -7  955  CQ SP1BSJ JO73
223145  -4 1295  SP1BSJ OK1DXR JO60
223200 -11  955  CQ SP1BSJ JO73                        a1
223215  +3 1295  SP1BSJ OK1DXR JO60 (x8)
220930  -7  955  DD7EE SP1BSJ JO73 (x3)

UTC    dB Audio  Message
215715  -5 1503  SP1BSJ DO8JB JO32
215715  +3 1276  SP1BSJ DO4MTB JO41
215715  -2 1346  SP1BSJ DD8BA JO42
215745 -12 1503  SP1BSJ DO8JB JO32
215745  -5 1346  SP1BSJ DD8BA JO42
215815 -13 1503  SP1BSJ DO8JB JO32
215815  -9 1346  SP1BSJ DD8BA JO42 (x9)

UTC    dB Audio  Message
154500  -9  345  SP1BSJ DL3IAK JN49
154515  +0  997  SP0YAGI SP1BSJ R-12
154530 -12 2190  SP1BSJ S51PV JN76
154530 -11  345  SP1BSJ DL3IAK JN49
154545  -4  998  SP0YAGI SP1BSJ R-12
154600 -13 2190  SP1BSJ S51PV JN76
154600  -7  345  SP1BSJ DL3IAK JN49
154615  -3  998  DL3IAK SP1BSJ -10
154630  -8 2190  SP1BSJ S51PV JN76
154645  -2  997  DL3IAK SP1BSJ RR73
154730  -1  998  SP1BSJ DJ0MAB JN49
220930  +4 2982  SP1BSJ F4BYA JN19 (x3)
171630  -3  997  JG3LGD SP1BSJ JO73

UTC    dB Audio  Message
192045 -15 1900  SP1BSJ DK7ZT +19
193830  -5  625  SP1BSJ DK1XAM -11 (x2)
220545  -2  992  MI0OBC SP1BSJ JO73
220600 -13  808  SP1BSJ MI0OBC -06
220600  -7 2031  SP1BSJ DL7ACA JO40
220615  -3  992  MI0OBC SP1BSJ R-05
220630 -13  809  SP1BSJ MI0OBC RR73
220630  -4 2032  SP1BSJ DL7ACA JO40
220645  +2  992  MI0OBC SP1BSJ 73
220700  -2 2032  SP1BSJ DL7ACA JO40
220715  +4  992  TF8KW SP1BSJ JO73
220730  -5 2032  SP1BSJ DL7ACA JO40
220745  +6  992  TF8KW SP1BSJ JO73
220800  -3 2032  SP1BSJ DL7ACA JO40

UTC    dB Audio  Message
111945 -21 1323  SP1BSJ ON7KEI JO21

UTC    dB Audio  Message
221845  +8 2855  SP1BSJ IQ4JO JN63
175045 -10 1033  SP1BSJ IZ3EAW R-13
175315 -11 1033  SP1BSJ HA7TM JN97
235715  -7 1433  SP1BSJ R2AL KO85 (x6)

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.