SP8CF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO10

Receiver-side FT8 activity involving SP8CF, decoded by SO8OO in southeastern Poland. 38 FT8 messages attributed to this token as transmitter, on 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-20.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 38 FT8 messages attributed to SP8CF as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). In this small sample, the estimated median decoder S/N was +15 dB; no usual signal pattern is inferred.

Overview

38
Messages attributed
1
UTC dates decoded
3
Active 15-min windows
+15 dB
Estimated median S/N

Bands

80m · 38
First attributed message: 2026-09-20
Last attributed message: 2026-09-20 21:31 UTC

Observed FT8 message patterns

Attributed sample
38 messages
Active dates
1 UTC dates
Estimated median S/N
+15 dB
Estimated 10th-90th percentile
+6 to +19 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 38.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP8CF in decoded directed-looking exchanges:

Most frequent locator attributed to SP8CF

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 · 7 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
106 km (approx.)
Last such locator decoded
2026-09-20 21:30 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.

Time UTCBandSP8CF S/NCounterpartCounterpart S/NMsgsCapture
09-20 21:30 80m +3 / - IQ4JO -10 / -10 4 ✓ Closing observed
09-20 21:20 80m +9 / - DO1SWC - / -11 3 ✓ Closing fragment
09-20 21:17 80m +11 / - DO8JB - / -7 5 Partial capture
09-20 21:14 80m +9 / +8 9A4ZM +10 / -9 7 ✓ Full exchange observed
09-20 21:11 80m +16 / +6 DK7ZT +7 / -2 4 ✓ Full exchange observed
09-20 21:11 80m +15 / - S55X -2 / -3 6 Partial capture
09-20 21:08 80m +17 / -10 ON4MAP -12 / -14 4 ✓ Full exchange observed
09-20 21:04 80m +18 / +1 SP3JHZ -1 / -10 8 ✓ Full exchange observed
09-20 21:04 80m +19 / -6 IK2RZQ +1 / -3 8 ✓ Full exchange observed
09-20 21:02 80m - / - DD7EE +4 / - 2 Partial capture
09-20 21:01 80m +15 / +5 SP3JHZ +4 / -13 4 ✓ Full exchange observed
09-20 21:01 80m +14 / -1 R2EA/P +8 / -8 4 ✓ Full exchange observed
09-20 18:29 80m - / -10 RA6OY +8 / - 3 ✓ Closing fragment
09-20 18:17 80m - / -14 DH0BRO -4 / - 2 Partial capture
09-20 18:16 80m - / - SQ8NA +20 / - 2 ✓ Closing fragment
09-20 18:15 80m - / - DL/AD2LX +3 / - 4 Partial capture
09-20 18:15 80m - / - HF5A +16 / - 2 Partial capture
09-20 18:15 80m - / -14 IQ4JO +12 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

80m 
UTC    dB Audio  Message
211600 +11 1491  SP8CF 9A4ZM RR73
211715  +8 1491  DO8JB SP8CF -07 (x5)
212015 +12 1491  DO1SWC SP8CF -11 (x3)
212945  +7 1387  CQ SP8CF KO10 (x2)
213030  -8 2119  SP8CF IQ4JO JN63
213045  +4 1387  IQ4JO SP8CF -10 (x2)
213130 -13 2118  SP8CF IQ4JO 73

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