R9SAP — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

2,638 messages

Active dates

50 UTC dates

Estimated median S/N

-13 dB

Estimated 10th-90th percentile

-20 to -5 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 929, moderate (-15 to -9 dB) 1,029, strong (≥ -8 dB) 680.

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 R9SAP 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 R9SAP

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

LO63 · 2,168 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,168 km (approx.)

Last such locator decoded

2026-09-05 21:01 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
205615 -21 1303  CQ R9SAP LO63                         a1 (x6)
210130  +8 1374  R9SAP DL3BQA JO73
210130 -21 2031  R9SAP LA9H JO59
210145 -17 1303  DL3BQA R9SAP -09
210200 -21 2031  R9SAP LA9H JO59
210200  +8 1374  R9SAP DL3BQA R-24
210215 -22 1303  DL3BQA R9SAP RR73
210230  +6 1374  R9SAP DL3BQA 73
175015 -16 1438  R9SAP R2UZ -15 (x2)

UTC    dB Audio  Message
162430 -14  228  R9SAP 4X1UF KM72 (x6)
183630 -10  932  R9SAP TA3NK KM39 (x3)
183745  +0  932  TA3NK R9SAP -16
183800  -4  932  R9SAP TA3NK R+00 (x2)
102445  -6 2142  R9SAP OZ7KJ/P -11 (x3)

UTC    dB Audio  Message
173330 -20  793  CQ R9SAP LO63                         a1
182100 -10 1042  R9SAP RY3F -11
182145 -14 1042  RY3F R9SAP 73
182400  +6 1042  R9SAP YO6LRV -19 (x2)
183945 -15  310  CQ R9SAP LO63 (x2)
184030  +0 1799  R9SAP RA2FU -15
184045 -17  310  CQ R9SAP LO63 (x2)
184130  +8  309  R9SAP DG6ITP JO71
184145 -16  310  CQ R9SAP LO63
184215 -12  310  UB1API R9SAP -04
184415 -10  310  CQ R9SAP LO63 (x2)

UTC    dB Audio  Message
144000  -6  557  CQ R9SAP LO63 (x2)
144115 +12  556  R9SAP G4UJS -17 (x2)
144300  -5  557  CQ R9SAP LO63 (x7)
144800 -18 1340  9A3K R9SAP RR73
144915 -12 1339  R9SAP R6ADH 73
082415  -6 1443  RI1FJL R9SAP R-14 (x2)

UTC    dB Audio  Message
081800  +0  593  R9SAP IK0XFD JN61 (x3)
114800 -22 1627  R9SAP RG6OR KN88 (x2)
083045 -24 1697  R9SAP RW3VA LO06 (x3)
084115 -17 1130  R9SAP RL1B -24
084115 +10  491  R9SAP IK4LZH JN54
084145 -14 1132  R9SAP RL1B RR73
084145 +11  491  R9SAP IK4LZH JN54 (x3)
094845 -15 1131  R9SAP RN6MA RR73

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.