SP7SEK — reception at SO8OO

Observed FT8 message patterns

Attributed sample

463 messages

Active dates

38 UTC dates

Estimated median S/N

+6 dB

Estimated 10th-90th percentile

-5 to +12 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 439.

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 SP7SEK 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 SP7SEK

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

KO10 · 304 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

106 km (approx.)

Last such locator decoded

2026-10-17 20:05 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
024530  +6 1931  OD5XX SP7SEK KO10 (x4)
024845 -14 1502  SP7SEK OD5XX -22
024900  +8 1499  OD5XX SP7SEK R-01
024915 -14 1502  SP7SEK OD5XX RR73
024930  +7 1499  OD5XX SP7SEK 73
024945  -1 1495  SP7SEK 9A4ZM JN86
025045  +1 1500  SP7SEK UA4FKT LO23
200100  +8 1720  4J3DJ SP7SEK KO10 (x5)

UTC    dB Audio  Message
184545  -3 2721  R6NA SP7SEK KO10
184645 -10 1348  OE1TKS SP7SEK KO10
184700  -3 1342  SP7SEK OE1TKS -15
184715  -5 1347  OE1TKS SP7SEK R-11
185145  -2 1850  SN31ROT SP7SEK KO10
185200 +11 1842  SP7SEK SN31ROT -09
185215  -4 1850  SN31ROT SP7SEK R-08
164000  -3  806  IZ7NLJ SP7SEK KO10 (x3)
203115  +0 2355  RI1FJZ SP7SEK KO10 (x2)
203300 -15 1262  SP7SEK RI1FJZ -16
203415  +1 2047  RI1FJZ SP7SEK R-12
183845 -24 2037  SP7SEK YO5QDI RR73

UTC    dB Audio  Message
193845  +0  632  SP7SEK F4HTA -11
155530 -21 1431  SP7SEK TN8GD -06 (x2)

UTC    dB Audio  Message
160745 -19 1420  SP7SEK R4FDW RR73
181715 -16 1054  SP7SEK PD0PKT -11
115445 -24 1841  SP7SEK RG6S -11
164800 -12  893  SP7SEK DL1YS -24
154245  -9  988  SP7SEK EB1DJ -23 (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.