SP1LIS — reception at SO8OO

Observed FT8 message patterns

Attributed sample

499 messages

Active dates

14 UTC dates

Estimated median S/N

0 dB

Estimated 10th-90th percentile

-13 to +7 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 71, strong (≥ -8 dB) 404.

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 SP1LIS 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 SP1LIS

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 · 231 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

613 km (approx.)

Last such locator decoded

2026-09-30 16:48 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
161115  -6 2203  CQ SP1LIS JO73 (x2)
161200  -7 2203  SP1LIS OZ5AGJ JO47
161200 -23 2012  SP1LIS IQ4JO JN63
161215 -10 2203  OZ5AGJ SP1LIS +26
161230  -7 2202  SP1LIS OZ5AGJ R+10
161245 -11 2203  OZ5AGJ SP1LIS RR73
161745  +4  392  DC7LR SP1LIS JO73 (x2)
164800  -8  641  CQ SP1LIS JO73
055100 -19 1987  SP1LIS F5OYA/P JN13 (x5)

UTC    dB Audio  Message
183115  -2 1370  SP1LIS DL5DQZ JO61 (x2)
183200 -14 1243  SQ8AA SP1LIS JO73
183215  -8 1370  SP1LIS DL5DQZ JO61
183230 -19 1242  DL5DQZ SP1LIS +14
183245  -2 1370  SP1LIS DL5DQZ R-02
183300 -15 1242  DL5DQZ SP1LIS RR73
183315  -1 1370  SP1LIS DL5DQZ 73
183415  +1 1242  SP1LIS I3QDK JN65 (x7)

UTC    dB Audio  Message
181030  +5 2502  SP1LIS DO9BAU 73
181045  -5  209  LZ1EV SP1LIS JO73 (x2)
181145 -11  209  CQ SP1LIS JO73 (x3)
181300  -1  208  SP1LIS SQ8FOX KO10
181300  -4 1565  SP1LIS SP9EPW +00
181315  -3  209  SP9EPW SP1LIS R+18
181330  -1 1565  SP1LIS SP9EPW RR73
181345  +0  209  SP9EPW SP1LIS 73
181415  +1  209  SQ8FOX SP1LIS +13
181430  -3  208  SP1LIS SQ8FOX R+09
181445  -4  208  SQ8FOX SP1LIS RR73
181500  -3  208  SP1LIS SQ8FOX 73

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.